A PTO (Paid Time Off) policy is a written document that defines how your US team earns, requests, and uses paid time away from work. Unlike the UK, where annual leave and sick leave are legally separate, the US has no federal mandate for paid vacation or sick leave — PTO policies are almost entirely at the employer’s discretion. This freedom means you can design a policy that fits your culture, but it also means you must be deliberate about what you offer, how it accrues, and what happens to unused time.

This guide walks you through setting up a PTO policy from scratch, including accrual methods, state-specific rules, and common policy structures.

Key Takeaways

  • There is no federal US requirement for paid vacation or sick leave — PTO policies are employer-defined.
  • Accrual-based policies (employees earn PTO over time) are more common than lump-sum allocations.
  • Unlimited PTO is growing in popularity but requires careful implementation to avoid liability.
  • State laws may require paid sick leave, paid family leave, or payout of unused PTO on termination.
  • The policy must state accrual rate, carry-over rules, usage procedures, and payout on termination.

Step 1: Decide on a PTO structure

Choose one of three common structures:

Banked PTO (combined leave)

All paid time off — vacation, sick, personal days — comes from a single PTO bank. Employees decide how to use it.

  • Pros: Simple to administer, flexible for employees
  • Cons: Employees may come to work sick to save PTO for vacation

Separate vacation and sick leave

Vacation and sick leave are tracked separately, each with its own accrual rate and rules.

  • Pros: Encourages sick employees to stay home, clear use for each type
  • Cons: More complex to administer, more leave types to track

Unlimited PTO

No fixed accrual — employees take time off as needed, subject to manager approval.

  • Pros: High flexibility, attracts talent, no payout liability
  • Cons: Employees may take less leave, requires trust-based culture, legal grey areas

Step 2: Set the accrual rate

For accrual-based policies, define how much PTO employees earn:

Annual lump sum

Employees receive their full PTO allocation at the start of each year.

Example: 15 days of PTO per year, available from 1 January.

Per pay period accrual

Employees earn PTO with each paycheque.

Formula:

PTO per pay period = Annual PTO days ÷ Number of pay periods

For 15 days annually with biweekly pay (26 periods):

  • 15 ÷ 26 = 0.577 days per pay period

Hourly accrual

Employees earn PTO based on hours worked.

Formula:

PTO per hour worked = Annual PTO hours ÷ Total annual working hours

For 15 days (120 hours) annually with 2,000 working hours:

  • 120 ÷ 2,000 = 0.06 hours of PTO per hour worked

Per pay period with hourly conversion

For part-time or variable-hours employees, accrue at a percentage of hours worked. A common approach is to accrue at 4% of hours worked (representing 2 weeks per year).

Step 3: Set carry-over rules

Decide what happens to unused PTO at the end of the year:

Use-it-or-lose-it

Unused PTO expires at the end of the year or a grace period (e.g., 31 March of the following year).

Warning: Some states (California, Montana) do not allow use-it-or-lose-it policies. Check state law.

Carry-over with cap

Employees carry over unused PTO up to a maximum (e.g., 5 days). Anything above the cap expires.

Unlimited carry-over

All unused PTO carries over indefinitely. This is uncommon and creates a growing liability.

Payout

Unused PTO is paid out at the end of the year. This is required in some states (California, Illinois, Colorado).

Step 4: Address state-specific requirements

US PTO law is state-specific. Key variations:

States requiring paid sick leave

California, New York, Massachusetts, Washington, Oregon, Colorado, Connecticut, Maryland, New Jersey, and others have paid sick leave laws. Your PTO policy must provide at least the state minimum.

Payout on termination

  • California — all accrued, unused vacation must be paid out on termination.
  • Illinois — vacation time must be paid out.
  • Colorado — accrued PTO must be paid out.
  • Montana — no use-it-or-lose-it; PTO vests immediately.

Accrual caps

Some states cap how much PTO can accrue. California caps at 1.5 times the annual accrual rate.

Front-loading vs accrual

Some states allow front-loading (giving the full allocation at the start of the year) as an alternative to accrual, which avoids tracking per-pay-period earnings.

Step 5: Define the usage policy

Set clear rules for how PTO is used:

Notice requirements

  • Planned PTO — minimum notice (e.g., 2 weeks for 1–5 days, 4 weeks for 5+ days).
  • Unplanned PTO (sick leave) — notify the manager by the start of the working day.

Approval process

  • Manager approves based on team capacity and business needs.
  • Define blackout periods (e.g., product launches, year-end close).
  • Set minimum staffing requirements.

Maximum consecutive days

Some policies cap the number of consecutive PTO days without senior approval (e.g., more than 10 consecutive days requires HR approval).

Step 6: Handle special scenarios

PTO during notice period

If an employee resigns and has accrued but unused PTO, the policy should state whether they can use it during the notice period or whether it is paid out.

PTO and FMLA

The Family and Medical Leave Act (FMLA) provides unpaid leave. Some employers allow employees to use accrued PTO during FMLA leave — this converts unpaid leave to paid leave but depletes the PTO bank.

PTO and disability

If an employee is on short-term or long-term disability, PTO may or may not accrue during the absence. State law may dictate this.

Common PTO policy mistakes

1. Not checking state laws

A PTO policy that complies with no federal law may still violate state law. California, New York, and Colorado have specific requirements that override employer policies.

2. Vague carry-over rules

If the policy does not state what happens to unused PTO, disputes arise on termination. Define it explicitly.

3. No payout policy

In states that require payout, the policy must reflect this. In states that do not, the policy should still state the position clearly.

4. Implementing unlimited PTO without structure

Unlimited PTO without usage targets, manager training, and tracking leads to employees taking less leave — and potential constructive dismissal claims.

5. Not tracking PTO properly

Even with unlimited PTO, you need to track usage for FMLA, state leave law compliance, and workforce planning.

Putting it into practice

Five checks cover most PTO policy setup efforts:

  1. Choose a structure (banked, separate, or unlimited) that fits your culture and legal obligations.
  2. Set accrual rates and carry-over rules that comply with the states where your employees work.
  3. Define the request and approval process with clear notice periods and blackout periods.
  4. Check state-specific requirements for paid sick leave, PTO payout on termination, and accrual caps.
  5. Communicate the policy clearly to all employees and update it annually.
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A leave management system that handles PTO accrual, carry-over, state-specific rules, and payout calculations automatically keeps your PTO policy compliant and your employees informed.

Frequently Asked Questions

Is PTO required by law in the US?

No. There is no federal requirement for paid vacation or personal time off. However, many states require paid sick leave. Your PTO policy must comply with the most generous applicable law.

What is the difference between PTO and vacation?

PTO is a broader term that typically includes vacation, sick leave, and personal days in a single bank. Vacation refers specifically to time off for rest and recreation.

How much PTO do US employees typically get?

The average is approximately 10–15 days per year for employees with 1–5 years of service, increasing with tenure. Many companies offer 15–20 days.

What happens to unused PTO?

It depends on the policy and state law. Some states require payout on termination. Others allow use-it-or-lose-it. The policy must state the rule clearly.

Can I offer unlimited PTO?

Yes, but implement it carefully. Set usage expectations, train managers, track usage, and check state law — some states have specific requirements for unlimited PTO policies.

This article is general information, not legal advice.

Last updated: 26 July 2026.