PTO accrual calculator: the formula, state accrual floors, and payout rules

§1Two ways employers actually calculate accrual

Choose a policy formula and the hours that are eligible under it. For an illustrative 120-hour annual allowance divided by 2,080 scheduled hours, the rate is 0.057692 hours per eligible hour, about 2.31 per 40-hour week. Overtime does not automatically count toward PTO: follow the lawful policy and any mandated sick-leave accrual rule. The hourly payroll tax calculator separately explains gross-pay inputs and withholding; it does not calculate PTO entitlement.

The per-pay-period method instead divides annual PTO hours by the number of pay periods and grants a fixed amount on each payroll run, no matter how many hours the employee actually worked that period. The same 120-hour grant becomes 120 divided by 26 biweekly periods, or 4.615 hours per period, whether the employee worked 80 hours or took three days off. This is the standard approach for salaried exempt staff, who typically are not clocking hours, and it is simpler to administer, but it will not automatically adjust for a mid-period hire or a leave of absence the way the hours-worked method does.

Front-loading makes the designated balance available at the start of a period instead of earning it by increments. Define lawful eligibility, vesting and any proration terms before use; do not assume unused time can be erased or an advance recovered from the final paycheck. California specifically forbids an employer’s self-help deduction for advanced vacation from final wages. Other jurisdictions and leave types require their own check.

§2A worked example: proration at hire

Take a non-exempt employee hired on March 16 into a role with 120 hours (15 days) of annual PTO, paid biweekly, using the hours-worked formula (the same clock-time discipline our time card calculator applies to hourly pay). From the March 16 start through year end, the employee has roughly 41 weeks of scheduled work remaining, or about 1,640 scheduled hours at 40 hours a week. At an accrual rate of 0.0577 hours per hour worked, that employee earns approximately 94.6 hours of PTO in the partial first year, not the full 120. That is the correct outcome: PTO is earned as hours are worked, it is not owed in advance for a year not yet worked. Getting this wrong in either direction creates a real liability. Over-accruing inflates the employer's PTO payout obligation at termination in states that treat accrued leave as wages (see below); under-accruing shortchanges the employee and, in those same states, can become a wage claim.

§3Caps and forfeiture require separate state checks

A cap limits how much PTO an employee can hold at once: once the balance hits the ceiling, no further hours accrue until the employee uses some down. A use-it-or-lose-it policy instead deletes unused hours outright, typically at year end. The distinction matters because several states treat these two mechanisms very differently under wage law.

California's Department of Industrial Relations puts it directly in its own wage FAQ: "vacation pay is another form of wages which vests as it is earned," so "a policy that provides for the forfeiture of vacation pay that is not used by a specified date ('use it or lose it') is an illegal policy under California law and will not be recognized by the Labor Commissioner." The same guidance explicitly carves out caps as acceptable: "a vacation policy that places a 'cap' or 'ceiling' on vacation pay accruals is permissible," because a cap merely pauses future accrual, it does not delete hours already earned [California Department of Industrial Relations, DLSE FAQ, accessed 2026-08-31]. Check Colorado, Montana and Nebraska under their own earned-vacation rules before adopting a forfeiture or cap provision. Do not extend California's vacation-pay treatment to every combined PTO or statutory sick-leave balance.

This is not a settled national picture. A Pennsylvania state legislator introduced a bill in 2026 aimed at limiting use-it-or-lose-it policies in that state, modeled explicitly on the California, Colorado, Montana, and Nebraska approach, though it had not passed as of late August 2026 and remained a proposal, not law [Pennsylvania House Democratic Caucus press coverage, 2026]. A calculator or policy built on the assumption that forfeiture is safe everywhere, or that it is banned everywhere, will be wrong for a meaningful share of a multi-state workforce.

§4Where a state paid-sick-leave floor hides inside a general PTO bank

The FLSA does not generally require paid vacation or paid sick leave. That is narrower than saying no federal rule requires paid leave: Executive Order 13706 requires accrual for covered federal-contract work, generally one hour per 30 covered hours, with its own limits and alternatives. Check contract coverage and any other applicable federal, state or local requirement before applying a company formula. DOL fact sheet.

The April 28, 2026 CRS report counted 18 jurisdictions including the District of Columbia with paid-sick-leave mandates, plus Illinois, Maine and Nevada with earned leave usable for any purpose. This is its March 2026 snapshot; coverage varies. Review the exempt vs. non-exempt guide for overtime classification, then independently check the leave statute’s worker coverage. California’s general 1:30 accrual method permits a total bank cap of 80 hours or ten days, whichever is more, and a separate annual use limit of 40 hours or five days, whichever is more; lawful alternative and front-loaded methods exist. Colorado’s annual figure is 48 hours. DC rates are 1:87, 1:43 and 1:37 for its three employer-size bands, with three, five and seven-day amounts. CRS report, California DIR.

The practical implication for a general PTO bank: if a company folds sick leave into one combined PTO policy without tracking a separate sick bank, the combined accrual rate and any cap must still satisfy the state's sick-leave-specific floor, even though the PTO label makes the two look interchangeable. A generous-looking 10-day PTO policy can still fall short of a state's sick leave accrual rate if the accrual schedule front-loads leave unevenly across the year, leaving an employee short of the required minimum during early months.

§5What a typical PTO policy actually looks like nationally

The March 2021 National Compensation Survey benefits snapshot from the Bureau of Labor Statistics, covering paid vacation specifically, not combined PTO, found that after one year of service 34% of private industry workers received 10 to 14 days of paid vacation, 18% received 15 to 19 days, and 8% received fewer than 5 days. After five years of service, the distribution shifts meaningfully toward the middle: 32% received 15 to 19 days and 30% received 10 to 14 days [U.S. Bureau of Labor Statistics, National Compensation Survey, March 2021; historical figures, not a current benefits benchmark]. Access itself varies enormously by industry: 95% of manufacturing and financial-activities workers had access to paid vacation leave at all, compared with 43% of leisure and hospitality workers [BLS, National Compensation Survey, March 2021].

These are vacation-only figures, they predate several of the state paid-sick-leave expansions detailed above, so a small business benchmarking its own policy against them should treat the numbers as a floor for competitiveness, not a ceiling, and should check the newer state sick-leave minimums on their own terms; a generous vacation allotment does not automatically cover them.

§6Frequently asked questions

How much vacation do I accrue per week? For an evenly distributed annual allowance, divide the annual hours by 52. An 80-hour allowance would average about 1.54 hours a week. Your policy may instead base accrual on hours worked, and the jurisdiction’s required minimum must be verified. Source.

How much PTO do I accrue per pay period? Use the accrual rate in your employer's policy and the actual pay frequency. A policy granting 80 hours evenly across 26 periods would add about 3.08 hours each period. Waiting periods, hours-based rules, and caps can change the amount. Source.

How long does it take to accrue 40 hours of PTO? Divide 40 by the policy's accrual amount per period. At two hours earned each week, reaching 40 takes 20 weeks, assuming no leave is used and no waiting period or cap changes the calculation. These figures are an example, not a statutory entitlement. Source.

Is PTO accrual required by federal law? Check which law applies. Ordinary FLSA rules do not force a paid vacation benefit, but workers on certain government contracts may have a federal sick-time right. State and local coverage can add separate duties; a company policy cannot override them.

Can an employer cap how much PTO I can bank? In most states, yes. A ceiling that simply pauses further accrual once a balance is full is treated very differently from erasing time an employee has already banked. California's own wage regulator draws exactly that line in its official vacation-pay FAQ, permitting the former while calling the latter illegal.

Is unused PTO the same thing as unused vacation for payout purposes? Inspect how the balance can be used and the applicable wage law. Renaming or splitting the balance will not by itself remove a payment duty: California treats an unrestricted combined PTO plan like vacation. Document the actual state-specific rules in the handbook; the multi-state handbook builder guide discusses master policies and location addenda, not a universal way to forfeit sick hours.

Does the common 1-hour-per-30-hours accrual rate apply to salaried exempt employees too? It depends on the state. Several states carve certain white-collar salaried roles out of their own mandate for that kind of leave entirely, so a combined-PTO rate for exempt staff should be checked against that particular carve-out list, not assumed to match the hourly-employee rate. The CRS report on this topic (R48921) is a useful starting point for the state-by-state details.