California’s PTO accrual laws rest on one principle: once an employer offers paid time off, every hour an employee earns is treated as wages that have already been earned. That classification, not any single statute about vacation, is what drives the rules on vesting, caps, carryover, and payout at termination. The Division of Labor Standards Enforcement (DLSE) enforces those rules, and the penalties for getting them wrong reach well beyond the value of the unpaid time itself.
PTO Is Wages, Not a Perk
California law treats earned vacation time as wages, and it vests as labor is performed.1Department of Industrial Relations. Vacation FAQ The California Supreme Court settled this in Suastez v. Plastic Dress-Up Co., holding that vacation pay is additional wages for services performed rather than a gratuity.2Supreme Court of California. Suastez v Plastic Dress-Up Co
That legal framing does the work of a hundred smaller rules. Because PTO is deferred compensation, the same enforcement tools that apply to unpaid wages apply to unpaid vacation: Labor Commissioner complaints, waiting time penalties, and civil suits. It also means employers cannot design a policy that lets earned time disappear, because wages that have already been earned cannot be taken back.
How PTO Accrues
Most California employers use one of two systems. Under the accrual method, employees earn PTO gradually based on time worked. A common rate is one hour of PTO per 30 hours worked, though employers can pick a different rate, such as a set number of hours per pay period or per month of service. Each hour vests the moment it is earned and belongs to the employee from that point forward.1Department of Industrial Relations. Vacation FAQ
Under the front-loading method, the employer grants the full annual PTO allotment at the start of the year or on the employee’s hire anniversary. There’s no running calculation, but the same vesting rule applies. Once the hours land in the bank, they’re the employee’s.
Whichever method an employer uses, the formula has to be written down clearly in the handbook or policy document. When the numbers are muddled and an employee disputes the balance, the Labor Commissioner resolves the ambiguity in the employee’s favor using principles of equity and fairness.3California Legislative Information. California Labor Code 227.3 Sloppy recordkeeping is where most PTO disputes start.
Caps Are Allowed, Forfeiture Is Not
A use-it-or-lose-it policy that wipes out unused PTO at year-end is illegal in California. The DLSE treats such a policy as wage theft and will not enforce it.1Department of Industrial Relations. Vacation FAQ
Caps are a different story. An employer can set a ceiling on how many PTO hours an employee is allowed to bank. When an employee hits that ceiling, accrual pauses until the balance drops back below it. Nothing already earned is lost, so this isn’t forfeiture.1Department of Industrial Relations. Vacation FAQ
The cap has to be reasonable. The DLSE warns that a cap used as a subterfuge to deny vacation won’t be enforced, but it doesn’t publish a specific number. A common industry benchmark sets the cap at roughly 1.5 to 2 times the annual accrual rate. So for an employee earning 80 hours a year, a cap between 120 and 160 hours is the range most employment attorneys consider defensible. Setting the ceiling too close to the annual rate produces the same practical result as forfeiture, because employees can quietly stop accruing without realizing it.
Caps also have to be applied consistently. A ceiling that only affects certain workers invites discrimination and selective wage-theft claims.
Waiting Periods for New Hires
A 90-day introductory period before new employees can use PTO is common and lawful. What matters legally is whether the policy says PTO accrues during that period but can’t be used, or whether nothing accrues until the period ends. Both approaches are permitted as long as the terms are clearly documented.
The difference shows up at termination. If accrual starts on day one, those hours already belong to the employee and must be paid out even if they leave during probation. If accrual doesn’t begin until day 91, nothing has vested and nothing is owed.
Paid sick leave follows its own schedule. California requires sick leave to begin accruing on the first day of employment, and employees must be allowed to use it starting on day 90. Any waiting period an employer designs for PTO has to accommodate that.
Combined PTO and Sick Leave
California requires at least 40 hours (five days) of paid sick leave per year, accruing at a rate of at least one hour for every 30 hours worked, with a permitted cap on total accrual of 80 hours.4Department of Industrial Relations. California Paid Sick Leave Frequently Asked Questions Employers can front-load the full 40 hours at the start of the year instead.
Employers who combine vacation and sick leave into a single PTO bank don’t have to provide a separate sick leave benefit, but the combined policy has to meet every sick leave minimum: the one-per-30 accrual rate, use for any reason the sick leave statute covers, and carryover of unused hours from year to year under the accrual method.4Department of Industrial Relations. California Paid Sick Leave Frequently Asked Questions
The bigger consequence is at termination. Standalone sick leave doesn’t have to be paid out when an employee leaves. But once vacation and sick leave are merged into one PTO bucket, the whole balance takes on the wage character of vacation and must be paid out at the final rate of pay. Employers who later try to split a combined bank back into separate categories can’t strip the wage character from hours already accrued.
Payout When Employment Ends
Every hour of earned, unused PTO must be paid out when employment ends, whether the departure is a firing, a layoff, or a resignation. Labor Code Section 227.3 prohibits any policy providing for forfeiture of vested vacation at termination.3California Legislative Information. California Labor Code 227.3 The payout is calculated at the employee’s final rate of pay, not the rate at which the hours were originally earned.
Final Paycheck Deadlines
California’s deadlines are tight, and the PTO payout has to be part of the final check:
- Fired or laid off: all wages, including accrued PTO, are due immediately at the time of discharge.5California Legislative Information. California Labor Code 201
- Quit with at least 72 hours’ notice: final pay is due on the last day of work.6California Legislative Information. California Labor Code 202
- Quit without 72 hours’ notice: the employer has 72 hours from the resignation to deliver final pay.6California Legislative Information. California Labor Code 202
Waiting Time Penalties
An employer who willfully misses these deadlines owes a waiting time penalty equal to the employee’s daily rate of pay for each day the wages remain unpaid, up to 30 days.7Department of Industrial Relations. Waiting Time Penalty The penalty runs on top of the underlying PTO balance owed, which is why most employers treat the final-paycheck timeline as a hard obligation.
Unlimited PTO
Unlimited PTO policies became popular partly because they seem to sidestep the termination payout. If nothing accrues, the reasoning goes, nothing is owed. A California appellate court in McPherson v. EF Intercultural Foundation accepted that a genuinely unlimited policy might avoid the Section 227.3 payout requirement, but only under specific conditions.8FindLaw. McPherson v EF Intercultural Foundation Inc
The court set out four requirements:
- The policy must be in writing and state clearly that PTO is not additional compensation for work performed but part of a flexible scheduling arrangement.
- Employee and employer rights and obligations must be defined, including what happens if the employee doesn’t schedule time off.
- Employees must have a genuine opportunity to take time off in practice, not just on paper.
- The policy must be administered fairly and cannot operate as a disguised use-it-or-lose-it scheme or create workload inequities between comparable employees.
A policy labeled “unlimited” that fails any of those tests, or a workplace culture that quietly discourages taking time off, can still produce a payout obligation at termination.
PTO and Overtime
Overtime is calculated on hours actually worked, not hours paid. Taking eight hours of PTO on Monday and working 36 hours the rest of the week does not put you over 40 for overtime purposes. PTO compensates time when no work is performed, and it doesn’t count toward the weekly threshold.9U.S. Department of Labor. Overtime Pay
The same logic applies to California’s daily overtime rules. Four hours of PTO plus six hours of work in the same day is not ten compensable hours for overtime purposes; only the six worked hours count.
Federal law also excludes vacation pay from the regular rate of pay used to calculate overtime premiums.10Office of the Law Revision Counsel. 29 USC 207 – Maximum Hours A PTO payout doesn’t inflate the overtime rate for weeks you actually worked.
FMLA, California Paid Family Leave, and ADA Accommodations
Federal Family and Medical Leave Act (FMLA) leave is unpaid by default, and federal regulations let either the employee or the employer require the substitution of accrued paid leave. The paid leave runs concurrently with FMLA, so using PTO doesn’t extend the 12-week entitlement.11eCFR. 29 CFR 825.207
California narrowed that rule for state-paid family leave. Under AB 2123, effective January 1, 2025, employers can no longer require employees to burn through up to two weeks of vacation before collecting California Paid Family Leave benefits. Employees can keep their PTO balance intact while receiving state benefits.
The Americans with Disabilities Act can also require modifying a PTO policy. The EEOC has said reasonable accommodations may include changes to policies that limit how much leave an employee can take, when an employee with a disability needs more.12U.S. Equal Employment Opportunity Commission. Employer-Provided Leave and the Americans with Disabilities Act In practice, an employee with a qualifying disability can request an exception to an accrual cap or carryover limit for medical needs, and the employer has to grant it absent undue hardship.
Tax Treatment of PTO Payouts
A PTO payout at termination is taxed as supplemental wages. Federal withholding is typically a flat 22% on supplemental payments up to $1 million in a calendar year, with 37% applying above that. Social Security (6.2%) and Medicare (1.45%) apply the same way they do to regular pay, and California state income tax withholding also applies.
The withholding often looks steep on a large payout. A 200-hour balance at $50 an hour is $10,000, and combined federal and state withholding can absorb close to a third of it. The money isn’t actually taxed at a higher rate than ordinary income; the flat supplemental rate just isn’t graduated the way regular payroll withholding is. Any over-withholding comes back at tax time, depending on total income for the year.