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The 7-Minute Rule: Payroll Time Rounding Explained
Many employers round clock punches to the nearest quarter-hour. The "7-minute rule" is the shorthand for how that rounding decides which way to go. Here is exactly how it works, with a full example table and the rules on when it is allowed.
What time rounding is
Rounding replaces the exact punch time with the nearest mark on a fixed grid — every 15 minutes, for example. It dates back to mechanical punch clocks and stuck around because it keeps payroll tidy: shifts land on clean quarter-hours instead of odd minute counts. Rounding can apply to the clock-in, the clock-out, or both, and it happens before the day's hours are totaled.
The 7-minute rule in one sentence
With 15-minute rounding, a punch that falls in the first 7 minutes after a quarter-hour rounds down to that quarter-hour, and a punch in the last 7 minutes (minutes 8 through 14) rounds up to the next one. The boundary sits at 7 minutes 30 seconds, so 7 goes back and 8 goes forward.
A full quarter-hour example
Here is every minute in one 15-minute block and where it lands under the 7-minute rule.
| Actual punch | Rounds to | Direction |
|---|---|---|
| 9:00 – 9:07 | 9:00 | Down |
| 9:08 – 9:14 | 9:15 | Up |
| 9:15 – 9:22 | 9:15 | Down |
| 9:23 – 9:29 | 9:30 | Up |
| 9:30 – 9:37 | 9:30 | Down |
| 9:38 – 9:44 | 9:45 | Up |
| 9:45 – 9:52 | 9:45 | Down |
| 9:53 – 9:59 | 10:00 | Up |
5-minute and 6-minute rounding
Fifteen minutes is the most common grid, but not the only one. Six-minute rounding lines up with tenths of an hour (0.1 hour = 6 minutes), which payroll systems like because the rounded time is already an easy decimal. Five-minute rounding is a finer grid used where employers want less drift from the true time. All three follow the same nearest-mark logic; only the size of the grid and the tipping point change. For 6-minute rounding the tipping point is 3 minutes, and for 5-minute it is 2.5.
Is time rounding legal?
Under U.S. federal law, rounding has long been accepted as a practical bookkeeping convenience, but with an important condition: it must be neutral over time. A policy cannot always round in the employer's favor. If a system rounds down far more often than up — for example by always truncating minutes — it systematically underpays and is not compliant. The 7-minute rule is popular precisely because rounding both directions at the same 7/8 split tends to even out.
State law can be stricter. Some states and recent court decisions push employers toward paying actual worked time, especially when exact timestamps are already captured electronically. If you are an employer, treat rounding as optional and make sure your policy is even-handed. If you are a worker, you are entitled to be paid for all time actually worked over the long run.
Worked example: does rounding help or hurt?
Rounding shifts a paycheck by only a few cents at a time, but it compounds over a week. Picture a worker who clocks in at 8:56 and out at 5:03 PM (17:03) with a 30-minute unpaid lunch. Their actual paid time is 8:56 to 17:03, which is 8 hours 7 minutes, minus 30 minutes, for 7 hours 37 minutes (7.62 decimal hours).
Now apply the 7-minute rule. The clock-in at 8:56 sits in the last seven minutes before 9:00, so it rounds up to 9:00. The clock-out at 17:03 is in the first seven minutes after 17:00, so it rounds down to 17:00. The rounded shift is 9:00 to 17:00, or 8 hours, minus 30 minutes, for 7 hours 30 minutes (7.5 decimal). Here rounding cost the worker about 0.12 hours that day — roughly $2.40 at $20 an hour.
The next day the punches might land the other way: an 8:52 clock-in rounds down to 8:45, adding time. That back-and-forth is the whole point of the neutral 7/8 split. If, over a full pay period, your rounded hours are consistently lower than your actual punches, the policy is not evening out and is worth raising. Enter both the exact and rounded versions in the calculator and compare the decimal totals to see the gap for yourself.
Try it in the calculator
The weekly time card calculator has a rounding selector with No rounding, 5, 6, and 15 minutes. Choose 15 minutes to apply the 7-minute rule to every punch, then watch the daily totals shift. Rounding is applied to the in and out punches before breaks are subtracted, which mirrors how most payroll software behaves. To see the effect on a paycheck, add an hourly rate and compare the rounded total with the unrounded one.
This guide is general information, not legal or payroll advice. Rounding laws vary by country and state and change over time. Employers should confirm their policy with qualified counsel; workers should raise concerns through the appropriate channel.