WATERMAN, Justice.

This legal malpractice action presents three questions of first impression. In Hook v. Lippolt, we held the defendants in plaintiff Pamela Hook's personal injury action—the State of Iowa and a volunteer driver for the Iowa Department of Human Services—were entitled to summary judgment under the statute of limitations and volunteer-immunity provisions of the Iowa Tort Claims Act, respectively. 755 N.W.2d 514, 517 (Iowa 2008). Hook then brought this malpractice action against her attorney in that case, Tito Trevino, who appeals from the judgment on the jury verdict in her favor. Hook cross-appeals a ruling denying her claim for additional interest.

First, we must decide an issue not reached in Lippolt—whether the driver's volunteer immunity precludes the state's respondeat superior liability for his negligence. If so, Hook's legal malpractice claim against Trevino fails because she could not have recovered in the "case within the case" had it been timely filed against the state. We hold that this defense is personal to the driver and does not extend to the state.

Second, we must decide whether Trevino can reduce the malpractice-damage award by the contingent fee he would have taken if the underlying action had been successful. Courts in other jurisdictions are divided on this issue. We adopt the majority and better-reasoned rule reflected in the Restatement (Third) of the Law Governing Lawyers, declining such a setoff because Trevino never earned the fee and Hook must pay new counsel who prosecuted the malpractice action.

Third, we must determine what interest is recoverable. Hook sought interest from the date the underlying action would have been tried. The district court denied that request and awarded interest on the entire judgment from the filing date of the malpractice action. We conclude Hook is entitled to interest running from December 9, 2004, the date by which her underlying action should have been tried, absent Trevino's negligence. Accordingly, for the reasons elaborated below, we affirm on the appeal, reverse on the cross-appeal, and remand with instructions.

I. Background Facts and Proceedings.

On June 9, 2000, Carl Lippolt ran a red light and struck Pamela Hook's vehicle, injuring her. The following year, Hook hired Trevino to represent her "in connection with injuries from [the] motor vehicle accident," according to their "Contract for Employment of Attorneys." Their agreement, signed July 12, 2001, provided for a contingent fee as follows:

On March 13, 2002, with nearly three months remaining on the two-year statute of limitations, Trevino filed Hook's first civil action against Lippolt alone. On April 8, Lippolt filed an answer to the petition that admitted his "negligence was a proximate cause of the collision and any resulting damages." In July, more than two years after the accident, Trevino served interrogatories. On September 6, Lippolt answered the interrogatories, disclosing for the first time that he had been serving as a volunteer driver for the Iowa Department of Human Services, transporting a patient for treatment, when he collided with Hook. On May 23, 2003, Lippolt amended his answer to plead affirmative defenses based on Iowa Code section 669.24 (2001), which provides immunity from personal liability for state volunteers, and on Hook's failure to submit her tort claim to the state appeal board as required by section 669.13.

In June 2003, Trevino filed an administrative claim on Hook's behalf with the state appeal board. Trevino dismissed without prejudice Hook's lawsuit against Lippolt. After six months went by with no response from the board, Trevino withdrew Hook's administrative claim and filed a second civil action against Lippolt, this time naming the state as a codefendant. Lippolt and the state moved for summary judgment on statute of limitations grounds. Hook resisted, arguing her claims were timely under the discovery rule. Lippolt also moved for summary judgment on the volunteer-immunity defense, which Hook resisted on the theory that the statute protected only the volunteer's personal assets, not liability insurance. The district court denied defendants' motions for summary judgment, and we allowed their interlocutory appeal.

In Lippolt, we held Lippolt was immune from liability under the volunteer-immunity statute, Iowa Code section 669.24. 755 N.W.2d at 520-21. Moreover, we concluded the two-year statute of limitations was not tolled by the discovery rule. Id. at 524 ("As a matter of law, a reasonably diligent inquiry would have led to [timely] discovery of the State's liability."). We held both defendants were entitled to summary judgment. Id. at 527-28. Our discussion of Trevino's duty to investigate foreshadowed this malpractice action:

Id. at 523.

After our 2008 decision, Hook hired new counsel and filed a malpractice claim against Trevino on June 23, 2010. Hook asserted Trevino negligently failed to "promptly pursue inexpensive, necessary discovery to ascertain the proper identity of those who should be sued" and failed to timely file an administrative claim with the state appeal board. Trevino moved for summary judgment, arguing that, because the state's agent, Lippolt, was entitled to immunity under section 669.24, Hook's respondeat superior claim against the state failed as a matter of law. The district court denied his motion for summary judgment and, at trial denied his motion for a directed verdict on the same grounds.

Trevino filed a motion in limine before trial to prevent Hook from arguing interest "should accrue from the time of a jury verdict in the underlying case." The district court, noting that "[p]rejudgment interest generally accrues from the time of filing suit," granted Trevino's motion, but stated, "This court will reconsider this order if an offer of proof ... is made at trial." Hook made no offer of proof regarding interest or the date the underlying case likely would have gone to verdict.

The jury returned a verdict finding Trevino was negligent and that his negligence caused damage to Hook. The jury was asked to determine past and future damages, but was not asked to determine the date the underlying case should have been tried. The jury awarded the following damages on the verdict form:

   1  Past pain and suffering from the date of injury        $125,000
      to when a case against the State of Iowa would
      have been tried.

   2  Present value of future pain and suffering             $125,000
      determined as of when a case against the State
      of Iowa would have been tried.

   3  Past loss of function of the mind and body from        $ 22,000
      the date of injury to when a case against the
      State of Iowa would have been tried.

   4  Present value of future loss of function of the        $ 11,000
      mind and body determined as of when a case against
      the State of Iowa would have been tried.

   5  Past loss of earnings from the date of injury to       $  5,000
      when a case against the State of Iowa would
      have been tried.

   6  Present value of future earning capacity determined    $125,000
      as of when a case against the State of Iowa would
      have been tried.

                                            Total            $413,000

In addition, the parties stipulated that Hook's past medical expenses amounted to $60,000. This brought the total award to $473,000. The district court entered judgment against Trevino in that amount with interest on the entire judgment, including future damages, running from June 23, 2010, the date the malpractice action was filed.

Trevino filed a posttrial motion to "offset the verdict by the contingent fee agreement" or, alternatively, by the reasonable value of his legal services. The district court denied that motion. Hook filed a motion seeking interest running from the time her original action would have been tried. The district court denied her motion for additional interest. Trevino's appeal and Hook's cross-appeal followed.

II. Scope of Review.

"We review a district court's ruling on a motion for directed verdict for correction of errors at law." Pavone v. Kirke, 801 N.W.2d 477, 486 (Iowa 2011). We review a ruling on a claimed setoff against a judgment for correction of errors at law. See Collins v. King, 545 N.W.2d 310, 312 (Iowa 1996) (reviewing disability insurance setoff for correction of errors at law). Finally, a ruling on interest is reviewed for correction of errors at law. Wilson v. Farm Bureau Mut. Ins. Co., 770 N.W.2d 324, 327 (Iowa 2009).

II. Analysis.

A. State Volunteer Liability. We first address Trevino's argument that he was entitled to a directed verdict because the volunteer immunity enjoyed by Lippolt under Iowa Code section 669.24 extended to the state to bar Hook's respondeat superior claim. This is a question of statutory interpretation.

The Iowa Tort Claims Act (ITCA) provides a limited waiver of the state's sovereign immunity. See Iowa Code ch. 669; Hansen v. State, 298 N.W.2d 263, 265 (Iowa 1980) ("The state may now be sued in tort only in the manner and to the extent to which consent has been given by the legislature."); see also Thomas v. Gavin, 839 N.W.2d 518, ___, 2013 WL 5583524 (Iowa 2013) (citing Don R. Bennett, Handling Tort Claims and Suits Against the State of Iowa: Part I, 17 Drake L.Rev. 189, 189 (1968) ("Prior to passage of the Iowa Tort Claims Act in 1965, the maxim that `the King can do no wrong' prevailed in Iowa.") (noting the ITCA is "viewed as abolishing traditional common law immunities")). "Generally, the State may be sued for damage caused by the negligent or wrongful acts or omissions of state employees while acting within the scope of employment to the same extent that a private person may be sued." McGill v. Fish, 790 N.W.2d 113, 117 (Iowa 2010) (citing Iowa Code § 669.2(3)(a) (2009)). "Employee of the state" is defined to include persons acting on behalf of the state "whether with or without compensation." Iowa Code § 669.2(4)(a) (2001); see also Lippolt, 755 N.W.2d at 519 ("[T]he term `employee' as used in chapter 669 includes unpaid volunteers as well as paid workers."). Hook argues the state can be sued by a party injured by the negligence of a volunteer such as Lippolt acting on behalf of the state. We agree.

Iowa enacted its state volunteer tort immunity provision in 1987.1 1987 Acts ch. 212, § 1 (now codified at Iowa Code § 669.24). Section 669.24 provides:

Iowa Code § 669.24 (first emphasis added). We must determine if the legislature intended section 669.24 to bar a respondeat superior claim against the state for the volunteer's negligence. As we observed in Lippolt, section 669.24 "states that a volunteer `is not personally liable.'" 755 N.W.2d at 520 (quoting Iowa Code § 669.24). On its face, this provision sets forth an immunity defense that is personal to the volunteer and lacks any language expressly extending the volunteer's immunity to the state. Our prior cases do not address whether the state can invoke the volunteer's personal immunity to defeat a respondeat superior claim against the state based on the volunteer's negligence.

Trevino relies on our common law negligence decisions holding that an adjudication in favor of the agent on a negligence claim bars the plaintiff's vicarious-liability claim against the principal. See, e.g., Peppmeier v. Murphy, 708 N.W.2d 57, 66 (Iowa 2005); Kulish v. Ellsworth, 566 N.W.2d 885, 892 (Iowa 1997) (affirming dismissal of common law vicarious-liability claim against county whose allegedly negligent employees enjoyed statutory immunity). Hook, in turn, cites our precedent allowing a statutory vicarious liability claim to proceed despite the personal immunity of a negligent agent. See, e.g., Smith v. CRST Int'l, Inc., 553 N.W.2d 890, 895 (Iowa 1996) (construing motor vehicle owner liability statute); Estate of Dean ex rel. Dean v. Air Exec, Inc., 534 N.W.2d 103, 105-06 (Iowa 1995) (construing aircraft owner liability statute). We conclude these cases can be harmonized. The plaintiff must establish the agent's negligence to recover against the principal under respondeat superior. Accordingly, an adjudication that the agent was not negligent will preclude the principal's vicarious liability. Yet a defense personal to the agent, such as immunity, will not ordinarily extend to bar a claim against the principal for the agent's negligence unless the rationale for the immunity also applies to the principal.

Thus, two inquiries guide our determination whether an adjudication against the plaintiff and in the agent's favor precludes recovery from the principal under respondeat superior. First, did the agent prevail on a personal defense inapplicable to the principal? Second, does the principal's vicarious liability rest on the agent's negligence or, rather, on the agent's liability?

The plaintiff may proceed with a respondeat superior claim against the principal despite a judgment in favor of the agent that is based on "a defense that was personal to the defendant." Restatement (Second) of Judgments § 51(1)(b) (1982).2 In Dean, we explained:

534 N.W.2d at 105 (quoting Davis v. Harrod, 407 F.2d 1280, 1284 (D.C.Cir.1969)); see also Smith, 553 N.W.2d at 895 (holding the vehicle owner's liability for the passenger's injuries "stems from the [driver's] alleged negligence, not [the driver's] liability for his negligence").

In Dean, a plane crash killed the pilot and passenger, who were coemployees on a business trip in a leased Cessna. 534 N.W.2d at 104. The passenger's estate sued the aircraft owner under Iowa Code section 328.41, which imposes civil liability "on the owner of an aircraft for the negligent conduct of those persons to whom the owner entrusts the plane." Id. The owner moved for summary judgment, arguing it could not be vicariously liable for the pilot's negligence because the pilot had coemployee immunity under the Iowa Workers' Compensation Act, Iowa Code section 85.20. Id. at 103-04. The district court denied the motion, reasoning that the immunity applied only to the coemployee pilot but not against the owner who was neither the employer nor a coemployee. We affirmed. Id. at 104. We held the immunity defense was personal to the pilot and was not available to the owner. Id. at 106. We noted the immunity under chapter 85 did not extend to third parties, while the aircraft owner liability statute "turns on the negligence of the operator." Id. at 104.

Similarly, in Smith, we held that vicarious liability under the motor vehicle owner-liability statute turned on the consent driver's negligence, regardless of the driver's liability. 553 N.W.2d at 894. In Smith, the negligent driver who injured a coemployee passenger had immunity under the workers' compensation statute. Id. at 892. The vehicle owner was not their employer or coemployee. The owner liability statute provided, "In all cases where damage is done by any motor vehicle by reason of negligence of the driver, and driven with the consent of the owner, the owner of the motor vehicle shall be liable for such damage." Iowa Code § 321.493 (1991) (emphasis added). The Smith court emphasized that "[s]ection 321.493 mentions only the negligence, not the liability, of the operator." 553 N.W.2d at 895.

The Smith court recognized that the workers' compensation statute "provides a quid pro quo not for third parties, but for employers, who are required by law to carry workers' compensation insurance or become self-insured." Id. The Smith court stated, "We do not believe withholding section 85.20 immunity from [the nonemployer vehicle owner] thwarts the purpose underlying such immunity." Id. Therefore, the Smith court held the driver's coemployee immunity did not exempt the vehicle owner from vicarious liability for the driver's negligence. Id.; cf. Steffens v. Proehl, 171 N.W.2d 297, 298-300 (Iowa 1969) (holding workers' compensation immunity barred section 321.493 claim against vehicle owner who was also plaintiff's employer).

Trevino's reliance on Peppmeier is misplaced. That case was a medical malpractice action in which the plaintiff sued her surgeon for negligently performing surgery and sued the surgeon's employer under a respondeat superior theory, alleging it was vicariously liable for his negligence. 708 N.W.2d at 59. The district court granted both defendants summary judgment on grounds the plaintiff lacked expert testimony or other admissible evidence to prove the surgeon was negligent. Id. at 61. The court of appeals affirmed summary judgment for the surgeon, but reversed summary judgment for his employer. Id. We granted the employer's application for further review. Id. We noted the plaintiff failed to seek further review of the appellate decision in favor of the surgeon, which left intact the summary judgment establishing she lacked evidence to prove his negligence. Id. at 62. We held summary judgment in favor of the surgeon was an adjudication on the merits that the surgeon could not be found negligent, which in turn precluded plaintiff's vicarious-liability claim against his employer. Id. at 66. By contrast, in Lippolt, we held Lippolt, the state's agent, was immune. 755 N.W.2d at 520-21. We did not hold Lippolt was not negligent. Id. An immune party may well be negligent under circumstances allowing a respondeat superior claim against the employer or principal based on its agent's negligence. This is such a circumstance.

Kulish is closer to the mark. There, decedent was injured in a car accident and died of a heart attack while being airlifted to a hospital. Kulish, 566 N.W.2d at 887. His estate brought negligence claims against emergency responders and a county hospital. Id. at 887-88. We held that "[s]ummary judgment for defendants based on the immunity provisions of section 670.4 was proper." Id. at 891-92. Specifically, we applied the emergency response immunity in section 670.4(11) of the Iowa Municipal Tort Claims Act. Id. at 890-92. Trevino seizes on language in which we denied the county's cross-appeal, stating the summary judgments in favor of the county employees, hospital, and ambulance service "necessarily justified dismissal of plaintiffs' claims against defendant Howard County, either on governmental immunity or vicarious liability grounds." Id. at 892 (emphasis added) (citing Iowa Code § 670.4(11) (1995) and Biddle v. Sartori Mem'l Hosp., 518 N.W.2d 795, 799 (Iowa 1994) (holding settlement with doctor extinguished further claims against defendant hospital based on vicarious-liability theory)).3 The italicized language relied upon by Trevino is dicta because we dismissed the county's cross-appeal on the ground the county had prevailed under the emergency-response immunity. Id. at 892-93.

Importantly, the emergency response immunity at issue in Kulish expressly applies to both the local governmental entity (the county) and the individual emergency responders. See Iowa Code § 670.4 ("The liability imposed by section 670.2 shall have no application to any claim enumerated in this section. As to any such claim, [unless otherwise expressly provided], the municipality shall be immune from liability."). By contrast, the ITCA does not expressly apply the state volunteer immunity to the state. Nor is volunteer immunity one of the listed exceptions to tort liability enumerated in section 669.14, the ITCA's counterpart to section 670.4. Id. § 669.14. "[A] private citizen's right of suit under the Tort Claims Act is not absolute, but rather is limited by conditions set forth by the legislature in chapter 669." Drahaus v. State, 584 N.W.2d 270, 272 (Iowa 1998). "These limitations are most clearly manifested in the specific exceptions to the act," which are set forth in section 669.14. Trobaugh v. Sondag, 668 N.W.2d 577, 584 (Iowa 2003). If the legislature had intended volunteer immunity to apply to the state, it presumably would have said so expressly, as it did for the emergency response immunity in the Municipal Tort Claims Act. "We refuse to rewrite [the immunity and liability statutes] in a manner not consistent with the plain language of those statutes." Smith, 553 N.W.2d at 895.

We next turn to the purposes served by the statutory provisions. See Harden v. State, 434 N.W.2d 881, 884 (Iowa 1989) ("We seek a reasonable interpretation that will best effect the purpose of the statute...."). "The self-evident purpose of the [ITCA] is to provide an orderly method by which to compensate those tortiously damaged by any officer, agent or employee of the state as defined by the Act." Graham v. Worthington, 259 Iowa 845, 853, 146 N.W.2d 626, 632 (1966). The Graham court elaborated,

Id. at 636-37. That purpose—compensating at state expense victims of the negligence of persons acting on the state's behalf—would be thwarted by extending the personal immunity of state volunteers to the state to deny recovery.

We find it equally self-evident that the purpose of section 669.24 is to encourage people to provide volunteer services to the state by removing the threat of personal liability. See Zivich v. Mentor Soccer Club, Inc., 82 Ohio St.3d 367, 696 N.E.2d 201, 205 (1998) ("[F]aced with the very real threat of a lawsuit, and the potential for substantial damage awards, ... volunteers could very well decide that the risks are not worth the effort."); cf. H.F. 39, 63th G.A. (1969) (codified at Iowa Code § 613.17 (1971)) (creating immunity for Good Samaritans in order to "encourage persons to render emergency care or assistance without fear of being sued"). Notably, the Iowa legislature passed several other liability-limiting provisions in the same 1987 Act that created the volunteer immunity.4 1987 Acts ch. 212. As the federal volunteer-immunity statute acknowledges,

42 U.S.C. § 14501(a)(7)(C); see also 101 Cong. Rec. H7548 (daily ed. Sept. 13, 1990) (statement of Rep. John Porter) (pointing to 1986 survey finding that fear of liability exposure was inhibiting volunteer recruitment). Arkansas passed its own volunteer-immunity statute in the same year as Iowa. It noted the motivations behind granting immunity to volunteers:

Ark.Code Ann. § 16-6-102 (West, Westlaw through 2013 Reg. Sess.).

The policy behind the volunteer-immunity statute—to encourage volunteering— does not warrant extending this immunity to the state. Immunizing the state for the actions of its volunteers would do little more than deny recovery to injured parties, undermining the compensatory goal of the ITCA. Yet, declining to immunize the state is unlikely to deter people from volunteering. Rather, extending volunteer immunity to the state would remove an incentive for the state to properly select, train, and supervise volunteers. See W. Page Keeton, et al., Prosser and Keeton on the Law of Torts § 69, at 500-01 (5th ed.1984) (noting that vicarious liability incentivizes the principal "to be careful in the selection, instruction, and supervision of his servants, and to take every precaution to see that the enterprise is conducted safely"); cf. Beganovic v. Muxfeldt, 775 N.W.2d 313, 318 (Iowa 2009) ("The rationale for imposing liability on a [motor vehicle] has owner is consistent with the rationale for ... the common-law rule of vicarious liability for the master-servant relationship. The owner of a motor vehicle has the ability to control its use and to entrust the vehicle to competent drivers."). Our holding today furthers the purposes of both section 669.24 and the ITCA as a whole and is in accord with many other jurisdictions.5

For these reasons, the district court correctly denied Trevino's motion for directed verdict. Lippolt's personal immunity as a state volunteer did not preclude a timely tort claim against the state based on Lippolt's negligence.6

B. Contingent Fee Setoff.

Trevino argues the district court erred by denying his motion to reduce the malpractice damages awarded by the jury by the forty percent contingent fee he would have taken had the underlying tort action been successful. Trevino preserved error by presenting this legal issue to the district court through his posttrial motion seeking a setoff. See Greenfield v. Cincinnati Ins. Co., 737 N.W.2d 112, 123 (Iowa 2007) (deciding setoff issues as a matter of law after trial). The malpractice jury verdict plus stipulated damages effectively measured the value of Hook's underlying tort case at $473,000. If Trevino had won that amount for her at trial in a tort action against the state, Hook would have been contractually obligated to pay his forty percent contingent fee. Her net recovery without interest would have been $283,800 ($473,000 ×.6). Without the setoff, she grosses $189,200 more in this malpractice action before paying her current legal counsel, who confirmed at oral argument he "is not working for free."

We have not previously decided whether a contingent fee setoff is appropriate in legal malpractice actions. Courts in other jurisdictions are divided on this question. As the Washington Supreme Court recently observed: "The majority view ... refuses to deduct the negligent lawyer's fee in calculating damage to the plaintiff. This is the view espoused by the authors of the Restatement (Third) of the Law Governing Lawyers."7 Shoemake v. Ferrer, 168 Wn.2d 193, 225 P.3d 990, 993 (2010). The district court relied on the Restatement (Third) of the Law Governing Lawyers section 53, comment c (2000), which provides in relevant part:

We, like the district court, find this comment persuasive. We thus join the majority today.

We begin our analysis by recognizing "[t]he goal in legal malpractice suits is to put clients in the position they would have occupied had the attorney not been negligent." Sladek v. K Mart Corp., 493 N.W.2d 838, 840 (Iowa 1992). But, the malpractice damage award should be limited "so as not to permit the client to profit from the lawyer's negligence." Id. If we allowed the setoff Trevino seeks, we would be giving him the benefit of a fee he never earned, while leaving Hook in a worse position in light of her undisputed obligation to pay the fees of the counsel who prosecuted her malpractice claims.

Hook had a good tort claim against the state. The state's agent, Lippolt, admitted running a red light and admitted his negligence caused the collision that injured her. Her stipulated medical expenses were $60,000. Although Lippolt enjoyed statutory immunity as a volunteer, that immunity did not extend to the state, as we hold today. Hook's tort claim against the state failed because Trevino missed the deadline to file it. The malpractice jury found Trevino negligent, a finding he does not challenge on appeal. We conclude he did not earn a fee from Hook's recovery. Therefore, we decline to reduce her malpractice recovery "by a fee that the lawyer never earned." Restatement (Third) of the Law Governing Lawyers § 56 cmt. c.

For her part, Hook would suffer a double deduction on fees—first, a deduction for Trevino's fictional forty percent fee; second, the fees paid to her counsel that actually won her malpractice case. We do not believe Iowa law compels this result. As the New York Court of Appeals recognized,

Campagnola v. Mulholland, Minion & Roe, 76 N.Y.2d 38, 556 N.Y.S.2d 239, 555 N.E.2d 611, 614 (1990).

Two leading cases represent the minority viewpoint: Moores v. Greenberg, 834 F.2d 1105 (1st Cir.1987), and Horn v. Wooster, 165 P.3d 69 (Wyo.2007).8 These cases apply traditional tort and contract principles limiting damages to losses that were "`reasonably within the contemplation of the contracting parties when the agreement was made'" and hold that malpractice damages thus are limited to the "net benefit of the tendered bargain-nothing more." Moores, 834 F.2d at 1110 (quoting Winship v. Brewer Sch. Comm., 390 A.2d 1089, 1095 (Me.1978)); see also Horn, 165 P.3d at 73. Both Moores and Horn disregard the argument that a plaintiff must pay twice for the same services, reasoning that this argument contradicts the American rule that parties bear their own legal fees. Moores, 834 F.2d at 1111 ("In the absence of a statute, an enforceable agreement, or a recognized juridical exception to the general rule, counsel fees do not accrue in favor of a successful litigant."); Horn, 165 P.3d at 75.

We decline Trevino's invitation to follow the minority approach. We find the Horn dissent more persuasive. See 165 P.3d at 79-83 (Burke, J., dissenting) (noting several cases relied on by the majority opinion were no longer good law). Under the minority view, "making a plaintiff whole" consists of awarding the plaintiff only what the plaintiff would have recovered had the original attorney performed competently. "This logic, however, is somewhat self-destructing because the attorney has not handled the matter competently." Kane, Kane & Kritzer, Inc. v. Altagen, 107 Cal.App.3d 36, 165 Cal.Rptr. 534, 538 (1980). We are not persuaded by Trevino's contention that Hook will be placed in a better position than if he had successfully prosecuted her tort claims against the state. Trevino basically asks us to pretend he won the tort case that he lost. He then asks us to compare apples to oranges—her theoretical net recovery in the underlying tort case, equated to her actual gross recovery in this legal malpractice action, exclusive of any deduction for the fees of the lawyers who in fact won her recovery. We will not turn a blind eye to the reality that the victim of legal malpractice must retain a second lawyer to recover from the first. The legal fees are a wash. See Winter v. Brown, 365 A.2d 381, 386 (D.C.1976) (noting the attorney fees to prosecute the malpractice action "cancel out" the fees that would have been owed in the underlying case had it been successful).

The Washington Court of Appeals surveyed the cases and commentators on both sides of the issue. Shoemake v. Ferrer, 143 Wn.App. 819, 182 P.3d 992, 996-97 (2008), aff'd, 168 Wn.2d 193, 225 P.3d 990 (2010). In joining the majority approach, the Shoemake court emphasized that "legal malpractice damages should fully compensate plaintiffs injured by attorney malpractice." Id. at 997. The court observed that "[i]n virtually every case, the injured plaintiff will be required to hire a second attorney to prosecute the malpractice action against the negligent attorney and will be required to pay that second attorney." Id. The court rejected the minority rule by stating:

Id. The same reasoning applies in Iowa. To allow Trevino a setoff for his contingent fee would leave Hook less than whole once she paid the fees of the counsel who won her recovery. A fee setoff thus conflicts with our cases providing that the plaintiff is to be made whole. See Sladek, 493 N.W.2d at 840.

Trevino, in the alternative, seeks a setoff based on quantum meruit for the reasonable value of the services he performed. Several states have left open the possibility for negligent lawyers to set off malpractice awards based on quantum meruit. See, e.g., Schultheis v. Franke, 658 N.E.2d 932, 941 (Ind.Ct.App.1995); Strauss v. Fost, 213 N.J.Super. 239, 517 A.2d 143, 145 (Ct.App.Div.1986); Campagnola, 555 N.E.2d at 614; Foster v. Duggin, 695 S.W.2d 526, 527 (Tenn.1985); Shoemake, 225 P.3d at 995 n. 4; accord Samuel J. Cohen, The Deduction of Contingent Attorneys' Fees Owed to the Negligent Attorney from Legal Malpractice Damages Awards: The New Modern Rule, 24 Tort. & Ins. L.J. 751 (1989) (suggesting quantum meruit can "reconcile the facially opposed policies of both cases that deduct and cases that refuse to deduct"). The Indiana Court of Appeals summarized the rationale behind this approach:

Schultheis, 658 N.E.2d at 941.

Other states have considered quantum meruit and rejected it as too difficult to administer. See Carbone v. Tierney, 151 N.H. 521, 864 A.2d 308, 320 (2004) ("[I]t would be difficult for a jury to assign a value to the services provided by the first lawyer, particularly where there is considerable disagreement about whether those services benefited the client in any meaningful way."); Horn, 165 P.3d at 76 ("[A]ctual application of the theory would add unworkable complications to an already complicated case.").

In Iowa,

Phil Watson, P.C. v. Peterson, 650 N.W.2d 562, 567 (Iowa 2002). But, we decline to reverse the district court and allow a quantum meruit deduction on this record. Trevino's efforts did not benefit Hook. Trevino offered no expert testimony or other evidence of the reasonable value of the services he performed for Hook or how they benefited her. Hook's new counsel noted they used different experts (an economist and vocational rehabilitation expert) and presented live medical testimony. In addition, they had to retain a legal malpractice expert, a necessary expense to prove Trevino's negligence, but a cost that would have been avoided had the underlying tort action been prosecuted successfully against the state. Hook's ultimate recovery was delayed by years due to Trevino's negligence.

We leave open the possibility for a quantum meruit setoff from a legal malpractice recovery on an appropriate record. This is not such a record. We affirm the district court's ruling denying Trevino's posttrial motion for a setoff based on his contingent fee or quantum meruit.

C. Interest. The district court awarded Hook interest on the entire judgment, including the future damages, running from June 23, 2010, the date she filed her malpractice action. In her cross-appeal, Hook argues the district court erred by denying her posttrial motion for additional interest. Essentially, Hook seeks the interest that would have been recoverable on her underlying tort claim. In her posttrial motion, she sought interest on the entire judgment to commence on "the date the case against the State of Iowa would have been tried." The district court denied her motion, stating:

In a footnote, the district court noted:

We have not previously decided how to calculate interest accruing on a legal malpractice judgment arising from the loss of an underlying tort claim. "The concept of prejudgment interest is based on the realization that the loss caused by tortious conduct results in the loss of use of compensatory damages, and to make the plaintiff whole, prejudgment interest should be allowed." Opperman v. Allied Mut. Ins. Co., 652 N.W.2d 139, 142-43 (Iowa 2002); see also Wilson, 770 N.W.2d at 332 ("The purpose of allowing interest on the [underlying] tort judgment is `to encourage prompt payment and to compensate the plaintiff for another's use of his or her money.'" (quoting 44B Am.Jur.2d Interest & Usury § 40, at 63 (2007)); Houselog v. Milwaukee Guardian Ins., 473 N.W.2d 52, 55 (Iowa 1991) ("[I]nterest is an element of compensatory damages.")).

The statute governing interest on tort judgments against private parties is found in Iowa Code section 668.13 (2011), which states:

The measure of damages in a legal malpractice action, however, is the amount the plaintiff would have recovered in the prior tort action but for the lawyer's negligence. Sladek, 493 N.W.2d at 840. Interest is a component of those damages. The underlying case involved a tort claim against the State of Iowa. Interest on tort claims against the state is governed by section 669.4, which provides:

Iowa Code § 669.4 (emphasis added).

Trevino and Hook each offer a date to serve as the trigger for interest. Trevino urges we use June 23, 2010, the date Hook commenced her malpractice action against Trevino and the date the district court used to calculate interest. Trevino emphasizes that section 668.13 allows interest on "judgments." Because no judgment was ever entered in the underlying personal injury case against the state or Lippolt, Trevino argues that the underlying case cannot serve as a starting point for interest. Trevino asserts the only judgment in this litigation is the judgment against Trevino in favor of Hook and, thus, the district court correctly allowed interest accruing from the commencement of Hook's case against Trevino. Trevino argues the commencement of the malpractice action is the "commencement" to which section 668.13(1) refers.

Trevino's position is at odds with the measure of damages in legal malpractice actions. "The measure of injury to the client's cause of action is the difference between what the client should have recovered but for the [attorney's] negligence, and what the client actually recovered." Burke v. Roberson, 417 N.W.2d 209, 212 (Iowa 1987); see also Sladek, 493 N.W.2d at 840 ("The measure of damages in a legal malpractice claim is limited to those obtainable in the underlying suit...."). Trevino recovered nothing for Hook in the underlying suit. Hook would have been entitled to recover statutory interest in the underlying tort action had it been successfully prosecuted. The damages in this malpractice action are intended to make her whole. She is less than whole without an award of the interest that should have been recovered from the state.

Hook argues the district court erred by declining to award her interest based upon the date her underlying tort suit would have been tried, as this is the date her damages became "complete."9 Hook asserts the "completed damages" rule from Gosch is applicable. That rule is an imperfect fit here. Gosch was not a legal malpractice action. At issue in Gosch was the date to accrue prejudgment interest on property damage to a vehicle destroyed in a collision. 701 N.W.2d at 90-91. We awarded interest on the property damage accruing from the date of the accident that totaled the vehicle. Id. at 91. Hook does not claim interest from the date of her personal injury accident with Lippolt. We have recognized the "completed damage" exception applies in wrongful-death cases because the injuries are complete upon death. See Wilson, 770 N.W.2d at 330 n. 3 ("We have noted that actions for wrongful death fall within that exception."). But, we expressly declined to extend the wrongful-death exception to nonfatal personal injury claims in Mrowka v. Crouse Cartage Co., 296 N.W.2d 782, 783-85 (Iowa 1980). This is because damages in serious, but nonfatal, personal injury claims such as Hook's are continuing rather than complete, and a jury verdict is necessary to assign a present value to future pain and suffering and other components of future damages. See id. at 784-85. No subsequent Iowa case has held nonfatal personal injuries are "complete" before judgment for purposes of accruing interest. Nor has Hook cited any legal malpractice case from any jurisdiction holding damages are complete for purposes of accruing interest at the time the underlying case would have been tried.10

In an analogous context, however, we have awarded interest from the filing date of the underlying tort action. In Opperman, plaintiff, William Opperman, was injured in a car accident and sued two different drivers for his injuries. 652 N.W.2d at 140. Ten months after commencing a tort action against the two drivers, Opperman brought his insurer, Allied Mutual, into the action, claiming under the underinsured-motorist (UIM) coverage of his policy. Id. The UIM claim against Allied was severed from the tort action. Id. Opperman subsequently settled with one driver, and a jury found in favor of the other. Id. A trial against Allied followed and Opperman was awarded the difference between his UIM coverage and the amount of his settlement. Id. Allied argued that the court should only enter prejudgment interest from the date Allied became a party to the action, not the original date Opperman filed his tort action against the drivers. Id. at 142. We disagreed, stating:

Id. We concluded "[t]he commencement of interest does not turn on when Allied was brought into the litigation." Id. We elaborated that "it makes no difference whether the damages have been set by a jury in a direct tort action or in a hybrid action, such as this, in which the suit against the insurer measures the amount of recovery the plaintiffs would have realized in an underlying tort action." Id. at 141. It was Allied's duty to pay "for all interest the tortfeasor would owe and, under Iowa Code section 668.13, that would begin to accrue when the action was filed against the original tortfeasor." Id. at 142.

We recently applied the Opperman rule in another UIM case, Wilson, 770 N.W.2d at 331-32. There, the insurer sought to distinguish Opperman by noting the UIM claim in that case had been filed within the tort action. Id. at 332. We, nevertheless, held in Wilson that the UIM insurer owed prejudgment interest from the filing date of the prior, separate tort action. Id. We did so because the UIM measure of damages is based on what the plaintiff "would have received had the tortfeasor been financially solvent." Id. at 331-32. Prejudgment interest from the filing date of the tort action was therefore appropriate. Id. at 332.

The reasoning behind the Opperman rule applies to this legal malpractice action. In both UIM cases and legal malpractice cases, the measure of damages is based on what the plaintiff was entitled to recover in the underlying tort action. Those damages include statutory interest. We hold that a legal malpractice claimant is entitled to recover from the defendant attorney the interest that would have been recoverable in the underlying action. Prejudgment interest is not recoverable on tort claims against the state. Iowa Code § 669.4. Rather, interest runs from the date of the judgment. Accordingly, we agree with Hook that interest should accrue from the date her underlying tort action against the state would have gone to judgment.

The district court declined to award Hook such interest because "the jury was never asked to provide that date," and Hook offered no evidence at trial "as to when the case against the State would have actually been tried." Trevino argues Hook failed to preserve error on her claim for this additional interest. The district court invited an offer of proof from Hook on matters excluded from evidence by the pretrial order in limine, including when the underlying case would have been tried. Hook made no offer of proof relating to this date. Nevertheless, we conclude error was preserved by Hook's posttrial motion and that the record is adequate to award the interest at issue. See Opperman, 652 N.W.2d at 140-41 ("It is true the jury did not add interest to the past damages, but interest may be properly computed and ordered by the court as additional damages to be included in the judgment.").

The last day a timely claim could have been made against the state was June 9, 2002 (two years after the personal injury accident). See Iowa Code § 669.13(1) (2001). Under the statute in effect at the time of the accident, if the state appeal board did not make final disposition of the claim within six months, the claimant could withdraw the claim from consideration and begin suit. Iowa Code § 669.5. Iowa Code section 669.13 then gave the litigants six months to file in district court after receiving a final disposition from the state appeal board or withdrawing the claim as permitted by section 669.5. Civil actions are to be tried within eighteen months of filing. See Iowa R. Civ. P. 1.944(2) (eff.Feb.15, 2002). Accordingly, the underlying action most likely would have been tried by December 9, 2004 (thirty months after the expiration of the statute of limitations). We conclude interest on Hook's judgment against Trevino should accrue from that date.

IV. Disposition.

For the foregoing reasons, we affirm the district court's ruling denying Trevino's motion for directed verdict on the state volunteer-immunity issue and affirm the ruling denying his posttrial motion for a setoff for his contingent fee or quantum meruit. On Hook's cross-appeal, we reverse the district court's ruling that denied interest accruing before the filing date of the malpractice action. We remand for entry of an order awarding additional interest on the entire judgment, accruing from December 9, 2004.

AFFIRMED ON APPEAL, REVERSED ON CROSS-APPEAL, AND REMANDED WITH INSTRUCTIONS.