HADLOCK, J.

Plaintiff appeals a judgment dismissing her claim for 30 days of statutory penalty wages against defendant, her former employer. The trial court dismissed the complaint on the ground that plaintiff had not filed it within the applicable statutory limitation period. On appeal, plaintiff argues that the trial court erred when it ruled that the three-year limitation period started running on the first day that plaintiff could have sued for penalty wages, i.e., the day immediately following the one on which her earned wages were due and defendant did not pay them. According to plaintiff, her claim for 30 days of statutory penalty wages did not accrue until the day on which all of those penalty wages became due, i.e., the thirtieth day after defendant allegedly should have paid plaintiff her earned wages. We agree with plaintiff and, accordingly, reverse and remand.

In this appeal from the dismissal of plaintiff's complaint, we review for legal error, "viewing the allegations, as well as all reasonable inferences, in the light most favorable to plaintiff, the nonmoving party." Mason v. Mt. St. Joseph, Inc., 226 Or.App. 392, 394, 203 P.3d 329, rev. dismissed, 347 Or. 349, 222 P.3d 30 (2009). Plaintiff alleged that she gave defendant at least 48 hours' notice of her intention to quit her employment, and she claimed that defendant was, therefore, required to pay her all of her earned wages on the last day she worked: August 31, 2001.1 Plaintiff also alleged that defendant did not pay her earned wages until December 11, 2001. Consequently, plaintiff claimed, she was entitled to $4,152 in statutory penalty wages, representing 30 days of full-time employment at her pay rate of $17.30 per hour. Plaintiff claimed those penalty wages under ORS 652.150, which provides, in part:

(Emphasis added.)

The parties agree that the three-year limitation period specified in ORS 12.100(2) applies to claims for penalty wages.2 They also agree that, not counting time during which the limitation period was tolled, plaintiff filed her complaint three years and eight days after September 1, 2001, the day following her last day of work.3 Whether plaintiff's complaint was timely therefore depends on when the three-year limitation period began to run: (1) on September 1, 2001 (the first day following the date on which defendant should have paid plaintiff her earned wages), as defendant argues and the trial court held; (2) on September 30, 2001 (after all 30 days of penalty wages became due), as plaintiff contends;4 or (3) on a day or days between those two extremes.

The answer to that question depends on when an employee's cause of action for penalty wages accrues. See ORS 12.010 (limitation periods described in ORS chapter 12 begin to run "after the cause of action shall have accrued"). In that regard, the key point is that the employee's cause of action under ORS 652.150(1) is for the penalty wages themselves, not for the earned wages that the employer should have paid the employee on his or her last day of work. That point is stark in this case, as defendant had paid plaintiff her earned wages long before she filed suit to recover penalty wages.

Moreover, penalty wages are not compensatory "damages" for harm caused by the employer's failure to timely pay earned wages, as defendant suggests. Rather, penalty wages are just that-a penalty. See North Marion Sch. Dist. # 15 v. Acstar Ins. Co., 343 Or. 305, 316, 169 P.3d 1224 (2007) (penalty wages "are punitive, not compensatory, in nature"). Consequently, the cause of action for penalty wages does not accrue, and the statute of limitation cannot begin to run, until that penalty is owed. Put another way, it is not the employer's initial wrongful act of failing to pay earned wages that triggers the statute of limitation for a claim for penalty wages. Rather, the limitation period can begin to run only when the employer commits the additional wrongful act of willfully failing to pay the earned wages on a day following the date on which those wages were originally due, as only that later act makes the employer liable for a penalty. See North Marion Sch. Dist. # 15 v. Acstar Ins. Co., 205 Or.App. 484, 492, 136 P.3d 42 (2006), aff'd, 343 Or. 305, 169 P.3d 1224 (2007) ("by definition, [penalty wages] accrue after the worker's employment `ceases' simply as a penalty against the employer" (emphasis in original)).

The next question is whether an employee who sues for penalty wages under ORS 652.150 has a single claim for the total amount of penalty wages the employer allegedly owes, or instead has up to 30 separate claims—each for one day of penalty wages— corresponding to each of the days on which the employer continued not to pay the employee's earned wages.5 If the employee has a single penalty-wage claim, then the three-year limitation period began to run when that single claim accrued. On the other hand, if the employee has a series of up to 30 distinct penalty-wage claims, then a separate three-year limitation period began to run on each of the days on which those claims accrued.6 In choosing between those alternative models, we look first to the statute's text and context, keeping in mind that "[p]rior construction of a statute by this court is always relevant to our analysis of the statute's text." State v. Bryan, 221 Or.App. 455, 459, 190 P.3d 470 (2008), rev. den., 347 Or. 290, 219 P.3d 592 (2009).

Although the text of ORS 652.150 does not make the point explicitly, we believe that the statute's wording reflects a legislative intent to create a single, unitary claim for penalty wages. The statute provides that, as "a penalty" for the nonpayment of earned wages, the employee's wages "shall continue" for up to 30 days. ORS 652.150(1) (emphasis added). The legislature's use of the article "a" followed by the singular noun "penalty" suggests that it intended one penalty to flow from an employer's continuing failure to pay earned wages, not multiple penalties corresponding to the multiple days that may pass before payment is made. The repeated use of the singular noun "penalty" in several subsections of ORS 652.150 reinforces our conclusion that the legislature contemplated that an employer who does not timely pay an employee's earned wages becomes liable for only a single penalty, even though the magnitude of that penalty depends on the duration of the employer's failure to pay.7

That construction of ORS 652.150 is consistent with our decision in Wilson v. Smurfit Newsprint Corp., 197 Or.App. 648, 107 P.3d 61, rev. dismissed, 339 Or. 407, 122 P.3d 65 (2005), in which we addressed whether the plaintiffs were entitled to prejudgment interest on an award of penalty wages under ORS 652.150. We first explained that penalty wages accrue over time:

Id. at 673-74, 107 P.3d 61 (citation omitted). Then-and most significant for this case-we held that interest on the penalty wages "begins to run at [the] point" when the penalty has "fully accrued." Id. at 674, 107 P.3d 61. Thus, interest on all 30 days of penalty wages "began 30 days" following the employer's initial nonpayment. Id.

Wilson necessarily is premised on the idea that an employee has but a single claim for penalty wages, the magnitude of which depends on the duration of the employer's continued failure to pay earned wages. That understanding of ORS 652.150 explains our pronouncement that a penalty of a certain magnitude exists soon after the employer's initial failure to pay (e.g., on the second business day after earned wages were due, the employer owes a penalty "in the amount of one day's wages") and a different penalty, of a greater magnitude, comes into existence later (e.g., on the third business day after earned wages were due, the employer owes a penalty "in the amount of two days' wages"). Thus, a new and larger penalty accrues with each day that passes, essentially superseding the smaller penalty that existed the previous day. That is why prejudgment interest is calculated based on the entire amount of penalty wages, starting to run only on the last day on which any penalty wages accrued. If an employee had a distinct claim for each day of penalty wages, prejudgment interest would be calculated separately on each of those claims, starting on the day that each claim accrued. Wilson precludes that result. Similarly, Wilson defeats any argument that the statute of limitation for part of an employee's penalty-wage claim may start to run before the final day on which the employer incurs liability to that employee for penalty wages. The employee's claim for the entire amount of penalty wages does not accrue until that final day, triggering the three-year limitation period on the employee's unitary claim for all of the penalty wages owed.

Here, plaintiff's claim for 30 days' penalty wages did not accrue until the thirtieth day following the day on which plaintiff's earned wages allegedly were due and unpaid. Not counting the tolling period, plaintiff filed her complaint within three years of that date. Accordingly, the trial court erred when it dismissed plaintiff's claim as time barred.

Reversed and remanded.