Pay Period: What It Means for Employers

What it means in practice

Every payroll runs on a pay period. The federal employment tax regulations define the payroll period as "the period of service for which a payment of wages is ordinarily made to an employee by his employer," and add that it is immaterial that the wages are not always paid at regular intervals (26 CFR 31.3401(b)-1(a)). The regulation gives two illustrations: an employee normally paid each calendar week who gets part of a week's pay early still has a weekly payroll period, and an employee who returns from a 3-week trip and receives one payment for all three weeks is treated as receiving three separate weekly payments.

Pay period, payday and workweek are different things. The pay period is the stretch of work a paycheck covers. The payday is the date the money is paid. The workweek is a fixed and regularly recurring period of 168 hours, seven consecutive 24-hour periods, that need not match the calendar week and may begin on any day and at any hour (29 CFR 778.105). A biweekly pay period therefore contains two workweeks, while a semimonthly or monthly pay period usually contains parts of workweeks at its edges. Federal records rules reflect all three: employers record the day and time the workweek begins, total wages paid each pay period, and the date of payment and pay period covered (29 CFR 516.2(a)(5), (11) and (12)).

The common pay frequencies. Publication 15-T (2026), Table 3, lists the number of pay periods per year the IRS worksheets use: weekly 52, biweekly 26, semimonthly 24, monthly 12, quarterly 4, semiannually 2 and daily 260. Biweekly means every two weeks; semimonthly means twice a month, so the two are not interchangeable. The regulations call any payroll period other than daily, weekly, biweekly, semimonthly, monthly, quarterly, semiannual or annual a "miscellaneous payroll period" (26 CFR 31.3401(b)-1(d)).

What the FLSA says about timing. The overtime regulations say "There is no requirement in the Act that overtime compensation be paid weekly" (29 CFR 778.106). The Department of Labor's Handy Reference Guide says wages required by the FLSA "are due on the regular payday for the pay period covered," and the Wage and Hour Division's Field Operations Handbook says minimum wage and overtime must ordinarily be paid on the regular payday for the workweek or, when the pay period covers more than a single week, on the regular payday for the period in which that workweek ends (FOH 30b04). If overtime hours in the last week of a period cannot be known before payroll is prepared, the overtime may follow as soon as practicable, but never later than the next payday after it can be computed (29 CFR 778.106). See overtime and the Fair Labor Standards Act.

The pay period does not change the overtime math. The FLSA takes a single workweek as its standard and does not permit averaging hours over 2 or more weeks, regardless of whether the employee is paid on a daily, weekly, biweekly, monthly or other basis (29 CFR 778.104). For minimum wage, the Field Operations Handbook likewise tests total earnings for the workweek divided by compensable hours (FOH 30b02). The start of the workweek may be changed only if the change is intended to be permanent and is not designed to evade overtime (29 CFR 778.105).

Converting salaries between periods. When a salary covers a period longer than a workweek, it must be reduced to its workweek equivalent to find the regular rate. A monthly salary is multiplied by 12 and divided by 52, and a semimonthly salary is multiplied by 24 and divided by 52; the regulation's example is a monthly salary of $1,560, or a semimonthly salary of $780, for 40 hours a week, which works out to $9 an hour (29 CFR 778.113(b)). The Field Operations Handbook adds that where a monthly or semimonthly salary covers alternating long and short fixed workweeks, there is minimum wage compliance if the salary covers the minimum wage for all hours in the pay period and the parties agree to allocate more of it to the longer weeks, with records reflecting the allocation on a workweek basis (FOH 30b01(b)).

Withholding is figured by pay period. Publication 15-T's Worksheet 1A starts with "the employee's total taxable wages this payroll period," multiplies that amount by the number of pay periods per year, applies the annual percentage method tables and then divides back by the number of pay periods. The annual amount from Step 3 of Form W-4 is likewise divided by pay periods, while Step 4(c) is an extra amount withheld per pay period. Publication 15 says that with a regular payroll period you withhold for that period "even if your employee doesn't work the full period," and the regulations say the wage bracket table for the established payroll period applies without reference to the time the employee actually worked (26 CFR 31.3402(c)-1(b)). Publication 15-T notes that its wage bracket tables generally cover annual wages under $100,000 (2026). Withholding is one of the steps between gross income and net pay.

No regular payroll period. When you do not have a regular payroll period, Publication 15 says to withhold as if wages were paid for a daily or miscellaneous payroll period, counting the days (including Sundays and holidays) in the period the payment covers. For pay unrelated to a length of time, such as commissions paid when a sale is completed, you count back to the latest of the last wage payment in the same calendar year, the date employment began if in that year, or January 1. An employee paid for less than one week who signs a statement under penalties of perjury that they are not working for another employer that week may be withheld on a weekly payroll period, and must notify you within 10 days if that changes.

Bonuses do not create a second pay period. If an employee is paid a regular wage for a weekly payroll period and also receives a bonus determined with respect to a different period, the payroll period is still weekly, and the tax on the bonus is computed under the separate rules for supplemental wages (26 CFR 31.3401(b)-1(b)).

Deposits follow paydays, not pay periods. Publication 15 (2026) states "Your deposit schedule isn't determined by how often you pay your employees or make deposits." It rests on the taxes reported in a 4-quarter lookback period: a Form 941 filer that reported $50,000 or less is a monthly schedule depositor, and deposits for payments made during a month are due by the 15th of the following month. Semiweekly depositors deposit by the following Wednesday for Wednesday, Thursday or Friday paydays and by the following Friday for Saturday through Tuesday paydays, and $100,000 or more accumulated on any day must be deposited by the next business day. The rules are based on the dates wages are paid, so a period that ends in one quarter but is paid in the next is reported by its payday.

Where states differ. Pay frequency and payday deadlines are mainly set by states. The DOL's table of state payday requirements, last revised January 1, 2023, shows which of weekly, biweekly, semimonthly and monthly each state allows. Its footnotes say, for example, that in Texas employees exempt from FLSA overtime must be paid at least once a month and others at least twice a month, and that Alabama and Florida have "No regulations or not specified." The page tells readers to consult the relevant state labor office for official information.

California, as an example. The California Department of Industrial Relations says wages, with some exceptions, must be paid at least twice during each calendar month on regular paydays designated in advance, and the employer must post a notice showing the day, time and location of payment (Labor Code 207). Wages earned from the 1st to the 15th must be paid by the 26th of that month and wages earned from the 16th to the last day by the 10th of the next month; weekly, biweekly or other semimonthly periods must be paid within seven calendar days of the end of the payroll period (Labor Code 204). Overtime must be paid no later than the payday for the next regular payroll period (Labor Code 204(b)(2)).

New York, as an example. The New York State Department of Labor says state law requires manual workers to be paid weekly and clerical and other workers at least twice per month, and that employers meeting certain criteria may apply for permission to pay manual workers less frequently. Its frequency-of-pay FAQ says manual workers' wages must be paid not later than seven calendar days after the end of the week in which they are earned.

Recordkeeping. For each covered employee, FLSA records include total additions to or deductions from wages each pay period, total wages paid each pay period, and the date of payment and pay period covered (29 CFR 516.2(a)(10)-(12)). Payroll records are kept at least 3 years, and time cards and wage rate tables at least 2 years (29 CFR 516.5 and 516.6).

Questions employers ask. Can the pay period differ from the workweek? Yes. The workweek is a fixed 168-hour period for computing FLSA pay (29 CFR 778.105), while the pay period is whatever span you ordinarily pay for. Does federal law pick our pay frequency? The FLSA rules above tie payment to your regular payday rather than to a set frequency; check your state's rules. An employee started mid-period. Do we prorate the withholding table? No; use the table for your regular payroll period (Publication 15, section 8). Can we switch from weekly to biweekly? Federal rules let you keep or move the workweek only if the move is permanent and not meant to evade overtime (29 CFR 778.105); state rules on frequency still apply. Confirm specifics with your state labor department or a qualified professional.

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