Taxpayers Howard and Ethel Scar petition for review of the Tax Court's denial of their motion to dismiss for lack of jurisdiction and denial of their two summary judgment motions. Taxpayers argue that the Tax Court lacked jurisdiction because the Commissioner of the Internal Revenue Service (IRS) issued an invalid notice of deficiency. Alternatively, they argue that the Tax Court incorrectly denied their motions for summary judgment and should not have granted the Commissioner's request to amend his answer. We reverse.

On September 3, 1979, petitioners Howard and Ethel Scar filed a joint return for tax year 1978.1 The Scars claimed business deductions totaling $26,966 in connection with a videotape tax shelter,2 and reported total taxes due of $3,269.

On June 14, 1982, the Commissioner mailed to the Scars a letter (Form 892); it listed taxpayers' names and address, the taxable year at issue (the year ending December 31, 1978), and specified a deficiency amount ($96,600). The body of the letter stated in part:

We have determined that there is a deficiency (increase) in your income tax as shown above. This letter is a NOTICE OF DEFICIENCY sent to you as required by the law.

It informed the taxpayers that if they wished to contest the deficiency they must file a petition with the United States Tax Court within 90 days.

Attached to the letter was a Form 5278 ("Statement--Income Tax Changes") purporting to explain how the deficiency had been determined. It showed an adjustment to income in the amount of $138,000 designated as "Partnership--Nevada Mining Project." The Form 5278 had no information in the space on the form for taxable income as shown on petitioners' return as filed. It showed as the "total corrected income tax liability" the sum of $96,600 and indicated that this sum was arrived at by multiplying 70 percent times $138,000.

Another attached document, designated as "Statement Schedule 2," with the heading "Nevada Mining Project, Explanation of Adjustments," stated as follows:

In order to protect the government's interest and since your original income tax return is unavailable at this time, the income tax is being assessed at the maximum tax rate of 70%.

The tax assessment will be corrected when we receive the original return or when you send a copy of the return to us.

The increase in tax may also reflect investment credit or new jobs credit which has been disallowed.

Also attached to the letter was a document, designated as "Statement Schedule 3," with the heading "Nevada Mining Project, Explanation of Adjustments." This document explained why the Nevada Mining Project deductions were being disallowed.

On July 7, 1982, the taxpayers filed a timely petition with the Tax Court to redetermine the deficiency asserted. In their petition, they alleged that they had never been associated with the "Nevada Mining Project Partnership" and had not claimed on their 1978 return any expenses or losses related to that venture. The Commissioner, on August 30, 1982, filed an answer denying the substantive allegations of the petition.

Sometime in September 1982, the Commissioner conceded in a telephone conversation with the taxpayers that the June 14 notice of deficiency was incorrect because it overstated the amount of disallowed deductions and wrongly connected taxpayers with a mining partnership. Nevertheless, the Commissioner maintained that the notice of deficiency was valid. The Commissioner confirmed his position in a letter dated November 29, 1982, stating "the taxpayers should not be surprised by the fact that the Commissioner means to disallow the deductions claimed in 1978 for Executive Productions, Inc." because similar objections had been made to the deductions claimed for the same tax shelter on taxpayers' 1977 return. The Commissioner enclosed with this letter a revised Form 5278, which contained the appropriate shelter explanation and decreased the amount of tax due to $10,374, and notified the taxpayers that he intended to request leave from the Tax Court to amend his answer.

On December 6, 1982 the taxpayers filed a motion to dismiss for lack of jurisdiction, claiming that the June 14 notice of deficiency was invalid because the Commissioner failed to make a "determination" of additional tax owed before issuing the notice of deficiency. The Commissioner filed a response which conceded the inaccuracy of the notice of deficiency but maintained that it was sufficient to give the Tax Court jurisdiction. On March 21, 1983, the Tax Court held a hearing on the taxpayers' motion to dismiss. At the hearing, counsel for the Commissioner attempted to explain why the Form 5278 sent to the taxpayers contained a description of the wrong tax shelter. He stated that an IRS employee transposed a code number which caused the IRS to assert the deficiency on the basis of the Nevada mining project instead of the videotape tax shelter. No witness, however, testified to this fact at the hearing,3 and no explanation was ever offered for the discrepancy of over $80,000 between the deficiency notice assessment and that later conceded to be the correct amount.

Following the March 21 hearing, the taxpayers filed a motion for summary judgment based on the Commissioner's concession that they had not been involved in any mining partnerships. The Commissioner shortly thereafter filed his motion to amend his answer to correct the error made in the notice of deficiency and accompanying documents. On November 17, 1983 the Tax Court, in an opinion reviewed by the full court, ruled on these various motions. The Tax Court majority upheld the validity of the June 14 notice of deficiency, finding that it satisfied section 6212(a),4 which states the formal requirements for a deficiency notice. The Tax Court further ruled that the Commissioner could amend his answer as requested, and denied taxpayers' motion for summary judgment. The reviewed opinion contained several concurring and dissenting opinions. Five dissenting judges would have denied jurisdiction on the basis that the deficiency notice was invalid and four dissenting judges would not have permitted the Commissioner to amend his answer.

The Commissioner amended his answer and asserted in it, despite the patent incorrectness of the notice of deficiency and the acknowledgment of error by the Service, that the taxpayer had the burden of disproving the correctness of the Commissioner's revised determinations. The taxpayers renewed their motion for summary judgment. The Tax Court denied this second motion for summary judgment on the ground that triable issues of fact remained concerning whether the taxpayers' primary motivation for entering the videotape venture was the prospect of earning a profit or avoiding tax. On February 22, 1985, the Tax Court entered a decision, pursuant to a stipulation, that taxpayers owed $10,377 in additional tax.5 The stipulation afforded the taxpayers the right to file a petition for review of the Tax Court's adverse rulings.

In order to decide whether the Tax Court had jurisdiction we review de novo the Tax Court's interpretation of section 6212(a). Orvis v. Commissioner, 788 F.2d 1406, 1407 (9th Cir.1986); Ebben v. Commissioner, 783 F.2d 906, 909 (9th Cir.1986).

Section 6212(a) states in part: "If the Secretary determines that there is a deficiency in respect of any tax imposed ... he is authorized to send notice of such deficiency to the taxpayer by certified mail or registered mail." Section 6213(a) provides in part: "Within 90 days ... after the notice of deficiency authorized in section 6212 is mailed ... taxpayer may file a petition with the Tax Court for a redetermination of the deficiency." The Tax Court has jurisdiction only when the Commissioner issues a valid deficiency notice, and the taxpayer files a timely petition for redetermination. "A valid petition is the basis of the Tax Court's jurisdiction. To be valid, a petition must be filed from a valid statutory notice." Stamm International Corp. v. Commissioner, 84 T.C. 248, 252 (1985). See Midland Mortgage Co. v. Commissioner, 73 T.C. 902, 907 (1980).

The taxpayers correctly note that section 6212(a) authorizes the Commissioner to send a notice of deficiency only if he first "determines that there is a deficiency." Because the deficiency notice mailed to the taxpayers contained an explanation of a tax shelter completely unrelated to their return, contained no adjustments to tax based on their return as filed, and stated affirmatively that the taxpayers's return is "unavailable at this time," taxpayers maintain that the Commissioner could not have "determined" a deficiency with respect to them. The taxpayers assert that, in the absence of a determination, the deficiency notice was invalid and therefore the Tax Court lacked jurisdiction.

The Tax Court rejected this argument, finding that "[t]he requirements of section 6212(a) are met if the notice of deficiency sets forth the amount of the deficiency and the taxable year involved." Scar v. Commissioner, 81 T.C. 855, 860-61 (1983).

We agree with the Tax Court that no particular form is required for a valid notice of deficiency, Abrams v. Commissioner, 787 F.2d 939, 941 (4th Cir.), cert. denied, --- U.S. ----, 107 S. Ct. 271, 93 L. Ed. 2d 248 (1986); Benzvi v. Commissioner, 787 F.2d 1541, 1542 (11th Cir.), cert. denied, --- U.S. ----, 107 S. Ct. 273, 93 L. Ed. 2d 250 (1986), and the Commissioner need not explain how the deficiencies were determined. Barnes v. Commissioner, 408 F.2d 65, 68 (7th Cir.) (citing Commissioner v. Stewart, 186 F.2d 239, 242 (6th Cir.1951)), cert. denied, 396 U.S. 836, 90 S. Ct. 94, 24 L. Ed. 2d 86 (1969). The notice must, however, "meet certain substantial requirements." Abrams, 787 F.2d at 941. "The notice must at a minimum indicate that the IRS has determined the amount of the deficiency." Benzvi, 787 F.2d at 1542. The question confronting us is whether a form letter that asserts that a deficiency has been determined, which letter and its attachments make it patently obvious that no determination has in fact been made, satisfies the statutory mandate.6

In none of the cases on which the Tax Court relied was the notice challenged on the basis that there was no determination. See Abatti v. Commissioner, 644 F.2d 1385, 1389 (9th Cir.1981) (notice valid although it did not advise the taxpayer under which code section the IRS would proceed because fair warning was given before trial); Barnes, 408 F.2d at 68 (notice need not state the basis for the deficiency determination nor contain particulars of explanations concerning how alleged deficiencies were determined); Foster v. Commissioner, 80 T.C. 34, 229-30 ((1983) (notice must advise taxpayer that Commissioner has, in fact, determined a deficiency, and must specify the year and amount), aff'd in part and vacated in part, 756 F.2d 1430 (9th Cir.1985), cert. denied, --- U.S. ----, 106 S. Ct. 793, 88 L. Ed. 2d 770 (1986); Hannan v. Commissioner, 52 T.C. 787 (1969) (deficiency notice valid where record did not show that Commissioner had not assessed a deficiency even though Commissioner asserted that no deficiency existed and that the notice had been issued in error).7 The cases assume that the deficiency determination was made. With the exception of Hannan, they deal instead with the question of whether the notice imparted enough information to provide the taxpayer with fair notice.

The Tax Court asserts that it is following long-established policy not to look behind a deficiency notice to question the Commissioner's motives and procedures leading to a determination. See, e.g., Riland v. Commissioner, 79 T.C. 185, 201 (1982) (notice valid, even though IRS agents violated procedures set forth in internal manual and failed to forward relevant documents to agents handling the case); Estate of Brimm v. Commissioner, 70 T.C. 15, 23 (1978) (notice valid despite taxpayer's argument that procedures followed were not valid, the amount of time spent evaluating a case and the extent to which review functions were perfunctorily performed are irrelevant; even if Commissioner's procedures are flawed, the proper remedy would not be dismissal); Greenberg's Express, Inc. v. Commissioner, 62 T.C. 324, 327 (1974) (court will not look behind notice to examine whether Commissioner discriminatorily selected taxpayer for audit; even if his actions are discriminatory, notice not void).

We agree that courts should avoid oversight of the Commissioner's internal operations and the adequacy of procedures employed. This does not mean, however, that the courts cannot or should not decide the validity of a notice that can be determined solely by references to applicable statutes and review of the notice itself.

In this case, we need not look behind the notice sent to the taxpayers to determine its invalidity. The Commissioner acknowledges in the notice that the deficiency is not based on a determination of deficiency of tax reported on the taxpayers' return and that it refers to a tax shelter the Commissioner concedes has no connection to the taxpayers or their return.

Section 6212(a) "authorize[s]" the sending of a deficiency notice "[i]f the Secretary determines that there is a deficiency." (emphasis added). We agree with Judge Goffe's statement in this case that "[e]ven a cursory review of this provision [section 6212(a) ] discloses that Congress did not grant the Secretary unlimited and unfettered authority to issue notices of deficiency." Scar, 81 T.C. 872 (Goffe, J., dissenting). In Appeal of Terminal Wine Co., 1 B.T.A. 697, 701 (1925), the Board of Tax Appeals construed the meaning of the term "determine" as applied to deficiency determinations: "By its very definition and etymology the word 'determination' irresistibly connotes consideration, resolution, conclusion, and judgment."

The term "deficiency" is defined in section 6211(a) as the amount by which tax due exceeds "the amount shown as the tax by the taxpayer upon his return" (provided that a return showing an amount has been filed), plus previously assessed deficiencies over rebates made. A literal reading of relevant code sections, and the absence of evidence of contrary legislative intent, leads us to conclude that the Commissioner must consider information that relates to a particular taxpayer before it can be said that the Commissioner has "determined" a "deficiency" in respect to that taxpayer.8 To hold otherwise would entail ignoring or judicially rewriting the plain language of the Internal Revenue Code.9

This reading of the Code is not a new one. Almost sixty years ago, the Board of Tax Appeals, while refusing to examine the intent, motive or reasoning of the Commissioner, emphasized that

the statute clearly contemplates that before notifying a taxpayer of a deficiency and hence before the Board can be concerned, a determination must be made by the Commissioner. This must mean a thoughtful and considered determination that the United States is entitled to an amount not yet paid. If the notice of deficiency were other than the expression of a bona fide official determination, and were, say, a mere formal demand for an arbitrary amount as to which there were substantial doubt, the Board might easily become merely an expensive tribunal to determine moot questions and a burden might be imposed on taxpayers of litigating issues and disproving allegations for which there had never been any substantial foundation.

Couzens v. Commissioner, 11 B.T.A. 1040, 1159-60 (1928).

Recently, taxpayers who had invested in a "tax shelter" known as the "Liberty Financial 1983 Government Securities Trading Strategy" argued that so-called pre-filing notifications (PFNs) sent to them by the IRS were in fact deficiency notices entitling them to a Tax Court redetermination. The notices, which in most if not all cases were received after filing, informed the taxpayers that the IRS believed that deductions or credits claimed pursuant to Liberty Financial were not allowable; that the IRS would review the taxpayers' deductions and reduce returns or adjust the returns as required; that various penalties could be assessed; and that the taxpayers might wish to amend previously filed returns. Abrams v. Commissioner, 787 F.2d 939, 940-41 (4th Cir.), cert. denied, --- U.S. ----, 107 S. Ct. 271, 93 L. Ed. 2d 248 (1986). In agreeing with the IRS that the PFNs did not qualify as deficiency notices, the Fourth Circuit found the obvious lack of an actual determination of deficiency crucial:

As the letter ... made pellucidly clear, examination of the returns of each individual taxpayer had not as yet been made. The most important observation to be made about the letter is that it left no doubt that, as yet, there had been no general review of any return, no computation of any deficiency nor reduction in refunds to which the taxpayers might otherwise be entitled. It was in essence only fair warning of what the taxpayers ... might expect.

Abrams, 787 F.2d at 941. Similarly, the Eleventh Circuit found the lack of a determination dispositive: "We cannot conclude that a PFN is a notice of deficiency absent a clear indication that the IRS has reviewed the PFN recipient's return and determined that a deficiency of a stated amount exists." Benzvi v. Commissioner, 787 F.2d 1541, 1543 (11th Cir.), cert. denied, --- U.S. ----, 107 S. Ct. 273, 93 L. Ed. 2d 250 (1986).

These cases inform our judgment here. They support the view that the "determination" requirement of section 6212(a) has substantive content.10 The Commissioner's and the dissent's contention that the issuance of a formally proper notice of deficiency11 of itself establishes that the Commissioner has determined a deficiency must be rejected. To hold otherwise, would read the determination requirement out of section 6212(a).12

Finally, the Commissioner asserts that the proper remedy in this case is to eliminate the presumption of correctness that normally attaches to deficiency determinations, see, e.g., Dix v. Commissioner, 392 F.2d 313 (4th Cir.1968), not to dismiss for lack of jurisdiction. He relies, however, on cases that challenge the correctness of the determination, and not its existence. The Commissioner's belated willingness to assume the burden of proof before the Tax Court cannot cure his failure to determine a deficiency before imposing on taxpayers the obligation to defend themselves in potentially costly litigation in Tax Court. Jurisdiction is at issue here. Failure to comply with statutory requirements renders the deficiency notice null and void and leaves nothing on which Tax Court jurisdiction can rest. See Sanderling Inc. v. Commissioner, 571 F.2d 174, 176 (3d Cir.1978) ("The Tax Court has held that it has no jurisdiction where the deficiency notice does not cover a proper taxable period.") (citing Columbia River Orchards, Inc. v. Commissioner, 15 T.C. 253 (1950)); McConkey v. Commissioner, 199 F.2d 892 (4th Cir.1952), cert. denied, 345 U.S. 924, 73 S. Ct. 782, 97 L. Ed. 1355 (1953) (where taxpayer paid alleged deficiency before notice of deficiency was mailed, Tax Court lacked jurisdiction as there was no deficiency on which the court's jurisdiction could operate); United States v. Lehigh, 201 F. Supp. 224 (W.D.Ark.1961) (statement of "Income Tax Due" was invalid deficiency notice where it was not labeled as a deficiency notice, incorrectly stated the tax year involved, and was confusing in that it did not provide certain figures that the terms of the statement said were provided). Cf. Mall v. Kelly, 564 F. Supp. 371 (D.Wyo.1983) (deficiency assessments void where IRS had failed to meet requirement of reasonably and diligently determining and mailing sufficient notice to taxpayers' last known address).

Section 6212(a) of the Internal Revenue Code requires the Commissioner to determine that a deficiency exists before issuing a notice of deficiency. Because the Commissioner's purported notice of deficiency revealed on its face that no determination of tax deficiency had been made in respect to the Scars for the 1978 tax year, it did not meet the requirements of section 6212(a). Accordingly, the Tax Court should have dismissed the action for want of jurisdiction.13

Petition for review granted.

CYNTHIA HOLCOMB HALL, Circuit Judge, dissenting:

Today, the majority fortifies the impediments to tax collection on behalf of errant taxpayers seeking "no taxation without litigation." R. Jackson, Struggle for Judicial Supremacy 141 (1941). I believe the majority undermines the jurisdiction of the Tax Court by constructing a superfluous yet substantial hurdle to its jurisdiction. In reaching the conclusion that section 6212(a) of the Internal Revenue Code, 26 U.S.C. Sec. 6212(a), imposes a substantive requirement on the Commissioner of the Internal Revenue Service to prove that he has reviewed specific data before making a determination, the majority eagerly expands jurisdictional requirements while discarding the carefully-honed and expedient jurisdictional rules that exist.

* The majority first turns a blind eye to reality when it finds that the incorrect explanation for the deficiency "[makes] it patently obvious that no determination has in fact been made." See ante at 1367. The 1978 tax return of taxpayers Howard and Ethel Scar was hardly an unlikely object of the Commissioner's suspicion. In 1977 the taxpayers participated in a videotape tax shelter, investing $6,500 in cash, signing a promissory note for $93,500, and then deducting over $15,000 in depreciation and other expenses from their 1977 tax return based on their "investment." The Commissioner audited this 1977 return and determined a deficiency of $15,875, finding that the taxpayers' "purchase of the film was lacking in profit motive and economic substance other than the avoidance of tax." The Commissioner mailed a notice of deficiency to the taxpayers, who responded by filing a petition for redetermination of the deficiency with the Tax Court on June 30, 1981.

The taxpayers' 1978 return included additional deductions totaling $27,040 based upon the now suspect videotape shelter. In all likelihood, the Commissioner's decision to issue a second deficiency notice regarding this 1978 return resulted from the continuation of the audit process which began with the previous year's tax return. This second deficiency notice, however, incorrectly explained the deficiency in terms of a Nevada mining venture in which the taxpayers had never participated. At the Tax Court hearing on March 21, 1983, counsel for the Commissioner explained that this misdescription resulted from a technical error: an IRS employee had transposed a code number, resulting in the incorrect identification of the basis of the deficiency as being the Nevada mining project instead of the videotape tax shelter. The Commissioner argues that a witness able to testify to this numerical error was present at the hearing, but was not called since the taxpayers did not object to this explanation of the IRS' mistake.

The procedural history of the taxpayers' efforts to challenge the 1978 deficiency consists largely of motions attempting to exploit this apparent mishap. These motions evince the tactics of delay employed by "every litigious man or every embarrassed man, to whom delay [is] more important than the payment of costs." Tennessee v. Sneed, 96 U.S. (6 Otto) 69, 75, 24 L. Ed. 610 (1877).

The majority correctly recognizes that section 6212(a) authorizes the Commissioner to send a notice of deficiency only if he first determines that there is a deficiency. The taxpayers themselves concede that the notice of deficiency in this case satisfied section 6212(a)'s formal requirements of stating the amount of the deficiency and the taxable year involved. See Stamm International Corp. v. Commissioner, 84 T.C. 248, 253 (1985); Foster v. Commissioner, 0 T.C. 34, 229-30 (1983), aff'd in part and vacated in part, 756 F.2d 1430 (9th Cir.1985), cert. denied, --- U.S. ----, 106 S. Ct. 793, 88 L. Ed. 2d 770 (1986); Ziegler v. Commissioner, 49 T.C.M. (CCH) 182, 189 (1984); Stevenson v. Commissioner, 43 T.C.M. (CCH) 289, 290-91 (1982) (citing Commissioner v. Stewart, 186 F.2d 239, 242 (6th Cir.1951)). See also Andrews, The Use of the Injunction as a Remedy for an Invalid Federal Tax Assessment, 40 Tax L. Rev. 653, 661 n. 39 (1985).

The majority then proceeds to overload the statutory requirement of a "determination" of a deficiency with burdensome substantive content. First, the majority ignores the rule that a deficiency notice need not contain any explanation whatsoever. Abatti v. Commissioner, 644 F.2d 1385, 1389 (9th Cir.1981); Barnes v. Commissioner, 408 F.2d 65, 69 (7th Cir.), cert. denied, 396 U.S. 836, 90 S. Ct. 94, 24 L. Ed. 2d 86 (1969); Stevenson, 43 T.C.M. (CCH) at 290. See also B. Bittker, Federal Taxation of Income, Estates and Gifts p 115.2.2 at 115-14 (1981) ("Federal Taxation").

Second, the majority fails to grasp the function of the deficiency notice. It is nothing more than "a jurisdictional prerequisite to a taxpayer's suit seeking the Tax Court's redetermination of [the Commissioner's] determination of the tax liability." Stamm, 84 T.C. 252. "[T]he notice is only to advise the person who is to pay the deficiency that the Commissioner means to assess him; anything that does this unequivocally is good enough." Olsen v. Helvering, 88 F.2d 650, 651 (2nd Cir.1937).1 Nothing more is required as a predicate to Tax Court jurisdiction.2 In fact, this Circuit has recognized that " 'it is not the existence of a deficiency that provides a predicate for Tax Court jurisdiction.' " Stevens v. Commissioner, 709 F.2d 12, 13 (5th Cir.1983) (quoting Hannan v. Commissioner, 52 T.C. 787, 791 (1969) (emphasis in original)). The Stevens court lucidly commented:

That seems obvious: the very purpose of the Tax Court is to adjudicate contests to deficiency notices. If the existence of an error in the determination giving rise to the notice deprived the Court of jurisdiction, the Court would lack power to perform its function.

709 F.2d at 13.

Therefore, the deficiency notice is effectively the taxpayer's "ticket" to the Tax Court. This "ticket" gives the taxpayer access to the only forum where he can litigate the relevant tax issue without first paying the tax assessed. If a properly-addressed deficiency notice states the amount of the deficiency, the taxable year involved, and notifies the taxpayer that he has 90 days from the date of mailing in which to file a petition for redetermination, then the notice is valid. The merits of the Commissioner's deficiency should not be litigated in the form of a motion to dismiss for lack of jurisdiction; once jurisdiction has been established, both sides will have the opportunity to press their views before the Tax Court.

The majority escapes from under the undesirable weight of authority requiring that the validity of a deficiency notice be determined primarily by its form by distinguishing these cases as not addressing the challenge that no determination was made by the Commissioner. In light of the emphasis of this authority on the form of the deficiency notice, I cannot agree with such a strained interpretation of these cases. See B. Bittker, Federal Taxation p 115.2.2 at 115-12 ("[t]he requirement of an IRS determination coalesces with the requirement of a notice of deficiency, since the usual evidence that a deficiency has been 'determined' is the notice") (emphasis in original).

For example, in Hannan v. Commissioner, 52 T.C. 787 (1969), the Tax Court concluded that there was a valid notice of deficiency, despite the Commissioner's contentions that he neither determined a deficiency nor sought to collect one.3 The Tax Court rejected the Commissioner's position and found it had jurisdiction:

Here petitioners were sent a letter which admittedly meets all the formal requirements of a statutory notice of deficiency, notifying them that "We [respondent] have determined the income tax deficiencies shown above" and listing tax deficiencies and additions to tax under section 6651(a). This was a determination of a deficiency in tax, even though, as respondent argues, on trial it may develop that there is in fact no deficiency.

Id. at 791 (footnotes omitted).

The majority misreads Hannan in denying that Hannan stands for the proposition that deficiency notices are to be judged on their face, rather than on the substance of the Commissioner's determination. See ante at 1367 n. 7. It is true that the Tax Court partly explained its decision by stating that there was no proof that the Commissioner was not in fact asserting a deficiency and that the taxpayers could only protect their interests by filing a petition. Although one might read this statement as implying that the Tax Court based its decision on more than a facial examination of the deficiency notice, I understand the Tax Court to mean that because the notice was ambiguous, the taxpayers had no alternative but to file a petition. This concern does not detract from the court's emphasis on the form of the deficiency notice.

Judging the deficiency notice in this case by the standards discussed above, I believe that the notice warned the taxpayers that the Commissioner had, rightly or wrongly, determined a deficiency and that the notice complied with the formal requirements of section 6212(a). The Commissioner clearly determined that the taxpayers had invested in a tax shelter without economic substance in order to avoid taxes. The inclusion of an erroneous explanation of the basis of the deficiency should not in itself deprive the Tax Court of jurisdiction to decide the question of whether the Commissioner can sustain the asserted deficiency.

The majority contends that here, it "need not look beyond the notice sent to the taxpayers to determine its invalidity." See ante at 1368. This, however, is exactly what the majority requires when it concludes that the "determination" requirement is only satisfied where the Commissioner shows he has determined a deficiency with respect to a particular taxpayer beyond the notice itself.4

As a matter of tax policy, the rule against looking behind the deficiency notice appears to be well-grounded in the administrative necessities of the Commissioner's job. The Commissioner must administer tens of thousands of deficiency notices per year. A requirement that he prove the basis of his determination before the Tax Court can assert jurisdiction would unduly burden both the Commissioner and the Tax Court.

In addition, the majority's ruling that the inclusion of an erroneous explanation invalidates a deficiency notice creates an incentive for the Commissioner not to disclose his theory for asserting a deficiency when he sends the deficiency notice. If the Commissioner discloses his theory at this stage, the majority's rule invites every taxpayer to litigate whether the Commissioner has made a determination before litigating the merits.5 Because it is to the taxpayer's advantage that the Commissioner disclose his theory when the notice is sent, I believe it is undesirable to establish a rule which would discourage him from doing so. See Stewart v. Commissioner, 714 F.2d 977, 986 (9th Cir.1983).

I view this case as presenting two related policy goals. One goal is to ensure that early in the assessment procedure each individual taxpayer receives fair notice as to the theory on which the Commissioner based his deficiency. The other goal is to encourage the Commissioner to disclose the theory on which he intends to rely in the deficiency notice whenever possible. However, because the Commissioner is not required to disclose his theory in the notice, the majority's rule that invalidates a deficiency notice accompanied with an erroneous description encourages the Commissioner to issue deficiency notices without any explanation. Such a rule detracts from the goal of early notice and taxpayers, on the whole, will suffer because the Commissioner is likely to use the deficiency notice solely for jurisdictional purposes and only thereafter reveal his reasons for issuing the notice. I believe that preserving the Tax Court tradition of not looking behind the deficiency notice promotes the goal of ensuring early notice to the taxpayer.

Finally, alternative remedies exist to protect the taxpayer's interests besides dismissal of the case for lack of jurisdiction. If the taxpayers are confused by the Commissioner's theory or explanation supporting the deficiency, they may seek clarification prior to trial. The Tax Court Rules "contemplate that after the case is at issue the parties will informally confer in order to exchange necessary facts, documents, and other data with a view towards defining and narrowing the areas of dispute. Rules 38, 70(a)(1), 91(a)."6 Foster, 80 T.C. 230. See also Stevenson, 43 T.C.M. (CCH) at 291. Here, the informal contacts between the parties resulted in the Commissioner's disclosure of his mistake within two months of when the taxpayers filed their petition for redetermination in the Tax Court.

Furthermore, the presumed correctness of the Commissioner's deficiency notice disappears if the deficiency is arbitrary or capricious, since the burden of proof then shifts to the Commissioner. Helvering v. Taylor, 293 U.S. 507, 513-16, 55 S. Ct. 287, 290-91, 79 L. Ed. 623 (1935); Weimerskirch v. Commissioner, 596 F.2d 358, 362 & n. 8 (9th Cir.1979); Jackson v. Commissioner, 73 T.C. 394, 401 (1979). See also Rule 142(a).

These measures are more than adequate to prevent the Commissioner from littering the country with baseless deficiency notices. Scar, 81 T.C. 869 (Sterratt, J., dissenting). The precedent holding that the validity of the deficiency notice is to be determined on its face was effective in furthering policy goals which benefit the taxpayer and the public. The majority's opinion sabotages the machinery of tax collection, thereby portending injury to the taxpayer and to the public. I therefore dissent.