Lunch Break Deduction Calculator and Auto-Deduct Rules

A meal break can be unpaid under federal law only if the employee is completely relieved of duty for at least 30 minutes. Everything else about lunch deductions follows from that sentence. An automatic 30-minute deduction is lawful on the days the employee actually took 30 uninterrupted minutes and unlawful on the days they did not, and the employer, not the employee, carries the burden of knowing which days were which. Rest breaks of 5 to 20 minutes are different: they are paid time and cannot be deducted at all.

The calculator below works out paid hours for a shift from the punches and the break actually taken, shows the underpayment when an automatic deduction exceeds the real break, and adds the state meal-period premium owed in California, Washington and Oregon when a required break was missed or short. Below it: the federal rules in detail, how each state's premium works, the litigation record on auto-deductions, the four conditions under which an automatic deduction survives an audit, and the timesheet design that keeps the record honest. For which states require a meal break in the first place, see meal and rest break laws by state.

Lunch deduction calculator

The federal rule: completely relieved, 30 minutes

The Fair Labor Standards Act does not require any break. What it regulates is which breaks must be paid. The Department of Labor's interpretive rules at 29 CFR 785.18 and 785.19 draw the line:

• Rest periods of about 5 to 20 minutes are "common in industry," "promote the efficiency of the employee," and must be counted as hours worked. An employer cannot deduct them, and cannot deduct a 15-minute coffee break by calling it a short lunch.
• Bona fide meal periods, "ordinarily 30 minutes or more," are not work time, but only if "the employee is completely relieved from duty for the purposes of eating regular meals." The regulation gives its own example of what fails the test: "an office employee who is required to eat at his desk or a factory worker who is required to be at his machine is working while eating." A shorter period "may be long enough under special conditions," but the Department has been reluctant to find them, and a few courts have accepted 20 minutes where the employee was genuinely free.
• Completely relieved is read strictly in most circuits. Answering a phone, watching a counter, monitoring a radio, or being told to eat quickly because the floor is short-staffed turns the meal into work. The Eleventh and Sixth Circuits apply a softer "predominant benefit" test that asks whether the time mostly benefits the employer or the employee, which allows some minor interruptions; the Fourth, Seventh and Ninth generally hold closer to the text. The practical difference is small: a break that is routinely interrupted fails every test.

Two consequences follow. First, a meal the employee was required to take but did not get is hours worked, and if those hours push the week over 40 they are overtime at one and a half times the regular rate, see our overtime calculator. Second, under 29 CFR 516.2 the employer must keep a record of hours worked each day, and the Supreme Court's rule in Anderson v. Mt. Clemens Pottery (1946) shifts the burden to the employer when its records are inadequate: the employee need only show the amount and extent of unpaid work "as a matter of just and reasonable inference." An automatic deduction with no record of whether the break occurred is, by definition, an inadequate record on the days it is wrong.

When an automatic deduction is lawful

Auto-deduction itself is not illegal. The Department of Labor said so in Fact Sheet 53 for the health care industry, and courts have repeatedly refused to certify class actions where the only allegation was that a deduction was automatic. What makes the practice unlawful is applying it on a day the break was missed, and what makes it dangerous is the absence of a working way to catch those days. From the case law, an automatic deduction survives when all four of these are true:

1. Employees know how to cancel it, and the method is used. A "no lunch" button on the clock, a code in the timekeeping app, or a line on the timesheet. The number of cancellations is itself evidence: an auto-deduct that is overridden a few times a week per department looks real; one that has never been overridden in a hospital unit where nurses skip lunch daily looks like a policy of not paying.
2. Supervisors do not discourage cancellations. Cases turn on testimony that a manager told staff to "just take the deduction" or that overrides required justification. A written policy that the override is always honored, enforced against supervisors who say otherwise, is the single most protective fact.
3. The employee confirms each shift. A clock-out attestation ("I took an uninterrupted 30-minute meal today: Yes / No") converts an assumption into a record. Several courts have decertified collective actions where attestations existed and the plaintiffs had answered Yes.
4. Someone reviews missed-break reports before payroll runs. Interrupted breaks that were canceled late, shifts where the employee forgot to attest, and departments with high override rates are reviewed and paid before the period closes rather than discovered in litigation.

An automatic deduction applied to a shift shorter than six hours, or to a shift with no scheduled meal, fails for a different reason: there was no break to deduct. And a deduction longer than the break actually scheduled, such as 60 minutes deducted for a 30-minute lunch, is simply a theft of 30 minutes a day. Under the national wage theft figures meal-break violations are one of the four largest categories of recovered back wages.

State premiums for missed or short breaks

About 20 states require a meal break for adults. Most enforce the requirement through their labor department with modest fines; three add money the employee can claim directly, and that changes the arithmetic of an auto-deduct that goes wrong.

The California premium is where auto-deduct policies become expensive. A nurse at $55 an hour who works through a 30-minute lunch three times a week is underpaid 1.5 hours ($82.50) in time and owed three premiums ($165) on top, every week, for every nurse on the unit, for up to four years under the state's unfair competition statute of limitations. A hospital with 400 nurses on that pattern accrues over $5 million a year in exposure before penalties and fees.

What auto-deduct cases have cost

Hospitals dominate the case law because the combination of auto-deduct, short staffing and continuous patient care produces missed meals on a schedule. Settlements and judgments from the public record:

• $3.5 million for about 1,400 nurses at SSM Health Care of Wisconsin (2013), where the deduction was applied regardless of whether nurses were called back to the floor.
• Up to $4.25 million at University Medical Center of Southern Nevada (2019) for auto-deducted meals and off-the-clock work.
• Collective actions certified against hospital systems in Ohio, Alabama and Pennsylvania between 2017 and 2023 on evidence that overrides were rare and discouraged, and decertified against others where attestations and override logs showed the break was usually taken.
• Outside health care, warehouse and call-center employers have settled auto-deduct claims where a 30-minute deduction was taken on shifts that ended early or where employees were required to remain at their stations; a 2024 settlement by a national logistics employer resolved claims for about 10,000 hourly workers (amount confidential in the public docket).

The pattern in the decisions is consistent. Employers win when they can produce an override mechanism, training records showing supervisors were told to honor it, and attestation data. Employers lose when the only evidence of the break is the deduction itself. The Department of Labor's own enforcement data lists health care among the top industries for back wages every year, and meal-period violations are a large part of that.

Rounding and the meal break

Federal law permits rounding punches to the nearest 5, 6 or 15 minutes as long as the practice is neutral and does not, over time, fail to pay for all hours worked (29 CFR 785.48). Applied to meal punches, rounding is dangerous in a way it is not for shift starts, because a 25-minute break rounded to 30 looks compliant on paper and is a paid break under federal law and a premium under California law. California has banned rounding of meal punches outright since the state Supreme Court's Donohue decision in 2021, and held that time records showing a noncompliant meal are presumed to show a violation. Even where rounding remains legal, the safer design records the meal to the minute and rounds only the shift. Our guide to time clock rounding covers the current law.

A timesheet design that holds up

1. Punch the meal, do not assume it. Four punches a day (in, out to lunch, in from lunch, out) remove the whole auto-deduct problem. Where punching is impractical, use the attestation in step 3.
2. If you auto-deduct, deduct only the scheduled meal and only on shifts long enough to include one. Never deduct 60 for a 30-minute break, and never on a shift under six hours.
3. Ask at clock-out. "Did you take an uninterrupted meal of at least 30 minutes today?" with a No that triggers pay and, in California, the premium. Store the answer with the punch.
4. Make the override one tap and record its use. A monthly override-rate report by department is the evidence you want to have, and a department with a zero rate is the one to investigate.
5. Pay the premium automatically. In California, configure payroll to add one hour at the regular rate whenever the record shows a missed, short or late meal, rather than waiting for a claim. The regular rate for the premium includes nondiscretionary bonuses and differentials (Ferra v. Loews Hollywood Hotel, 2021).
6. Train supervisors in writing that every override is honored and that telling staff to "just take the deduction" is a terminable offense. Keep the training record.
7. Keep the data. Time records for at least three years federally, four in California, six in New York; our record retention guide has the full list. Our time tracking discrepancy template handles the corrections.

If you are the employee

If 30 minutes is deducted every day and you work through lunch, you are owed that time at your regular rate, or at time and a half if the week goes over 40 hours, for the last two years (three if the violation was willful) under federal law, and longer in several states. Write down each day you miss or cut short a break, with the reason, for a few weeks; a contemporaneous note is strong evidence when the employer's record is only an assumption. Use the cancellation method if one exists and keep a copy of what you submitted. Raise it with payroll in writing first, since many auto-deduct errors are fixed on request, and if they are not, file a wage claim with your state labor department or the federal Wage and Hour Division; both are free and retaliation for filing is illegal. In California, add one hour of premium pay per day to the claim.

Key takeaways

• Under 29 CFR 785.19 a meal may be unpaid only if it lasts at least 30 minutes and the employee is completely relieved of duty. Breaks of 5 to 20 minutes are paid time and cannot be deducted.
• Automatic deductions are legal on the days the break was taken and unlawful on the days it was not; the employer must be able to tell the difference from its records.
• An auto-deduct survives an audit with four things: a cancellation method that is actually used, supervisors who never discourage it, a clock-out attestation, and a missed-break review before payroll closes.
• California adds one hour of pay per day for a missed, short, late or interrupted meal (Labor Code 226.7) and bans rounding of meal punches; Washington and Oregon pay the time and add damages or agency penalties.
• Hospital auto-deduct cases have settled for $3.5 million and $4.25 million; employers win when override logs and attestations exist and lose when the deduction is the only record.
• Never deduct more than the scheduled meal, never deduct on shifts too short to include one, and record the meal to the minute even if the shift is rounded.
• Employees owed for deducted meals can recover two to three years of back pay federally, plus liquidated damages, and the California premium on top.