How to Calculate Overtime Pay: Step-by-Step with Examples

Overtime pay is one of the most significant line items on a paycheck — and one of the most frequently miscalculated. Whether you're an employee verifying your pay stub or an employer ensuring compliance, understanding exactly how overtime pay is calculated protects your wallet and keeps you on the right side of federal and state labor law. This guide walks through every step with real numbers, covering the FLSA framework, the time-and-a-half formula, double time rules, state-specific daily overtime, and common scenarios that trip people up.

Written by Sarah Mitchell, CPA

The FLSA Foundation: Who Gets Overtime

The Fair Labor Standards Act (FLSA) is the federal law that governs overtime. Its core rule is simple: non-exempt employees must receive overtime pay at a rate of at least 1.5 times their regular rate of pay for all hours worked over 40 in a workweek.

Three key terms to understand:

• Non-exempt: Eligible for overtime. Most hourly workers and salaried workers who don't meet exemption criteria are non-exempt.
• Workweek: Any fixed, recurring 168-hour period (7 consecutive 24-hour periods). Your employer defines when it starts — it doesn't have to be Monday through Sunday.
• Regular rate of pay: This is not always the same as your base hourly wage. It includes shift differentials, non-discretionary bonuses, and certain commissions. It excludes discretionary bonuses, expense reimbursements, and gifts.

For a detailed breakdown of exempt vs. non-exempt classifications, see our overtime laws guide.

Step 1: Determine Your Regular Rate of Pay

For a straightforward hourly employee with no bonuses or differentials, the regular rate equals the hourly wage. But when additional compensation is involved, the calculation changes.

Hourly Workers: Simple Case

If you earn $24/hour with no additional pay, your regular rate is $24/hour. Your overtime rate is $24 × 1.5 = $36/hour.

Hourly Workers with Non-Discretionary Bonus

If you earn $24/hour and receive a $200 weekly production bonus, the bonus must be factored into your regular rate:

1. Total straight-time earnings: (45 hours × $24) + $200 bonus = $1,280
2. Regular rate: $1,280 ÷ 45 hours = $28.44/hour
3. Overtime premium: $28.44 × 0.5 = $14.22 per overtime hour
4. Total pay: $1,280 + (5 overtime hours × $14.22) = $1,351.10

Note: the overtime premium is only the additional 0.5x, because the straight-time portion of those overtime hours was already included in step 1.

Salaried Non-Exempt Workers

If you're salaried but non-exempt, your regular rate is calculated by dividing your weekly salary by the number of hours the salary is intended to cover (typically 40):

• Weekly salary: $900
• Regular rate: $900 ÷ 40 = $22.50/hour
• Overtime rate: $22.50 × 1.5 = $33.75/hour

Use our salary to hourly converter to quickly find your equivalent hourly rate.

Step 2: Count Your Hours Worked

Add up all hours worked during the workweek. Remember that "hours worked" under the FLSA includes all time you're required to be on premises, on duty, or at a prescribed work location. It also includes short breaks (under 20 minutes), mandatory training, and on-call time when your freedom is significantly restricted.

A realistic weekly timesheet might look like this:

This employee worked 49.5 hours. The first 40 are paid at the regular rate, and the remaining 9.5 hours are overtime. Use our time card calculator to compute weekly totals from your actual clock times.

Step 3: Calculate Overtime Pay (Time-and-a-Half)

The federal overtime formula is:

Overtime Pay = Overtime Hours × (Regular Rate × 1.5)

Using the example above with a $24/hour regular rate and 49.5 hours worked:

• Regular pay: 40 hours × $24 = $960.00
• Overtime hours: 49.5 − 40 = 9.5 hours
• Overtime rate: $24 × 1.5 = $36.00
• Overtime pay: 9.5 × $36 = $342.00
• Total gross pay: $960 + $342 = $1,302.00

Without overtime, this worker would earn 49.5 × $24 = $1,188. The overtime premium adds $114 — a 9.6% pay increase for working 23.75% more hours. That's the whole point of overtime law: to compensate workers fairly and discourage employers from overworking staff.

Double Time: When and Where It Applies

Federal law does not require double time pay. However, several states and some union contracts do. Double time means paying 2 times the regular rate for qualifying hours.

California Double Time Rules

California has the most extensive double time requirements in the nation:

• 2x pay for all hours worked beyond 12 in a single workday
• 2x pay for all hours worked beyond 8 on the 7th consecutive day of work in a workweek
• 1.5x pay for hours 8–12 on a regular workday (daily overtime)
• 1.5x pay for the first 8 hours on the 7th consecutive day

Double Time Example

A California worker earning $20/hour works a 14-hour shift:

• First 8 hours: 8 × $20 = $160 (regular rate)
• Hours 9–12: 4 × $30 = $120 (1.5x overtime)
• Hours 13–14: 2 × $40 = $80 (2x double time)
• Total: $360 for the day

Compare that to the same hours in a federal-only state (no daily overtime): 14 hours × $20 = $280. The California worker earns $80 more for the same shift.

State Daily Overtime Rules

Most states follow the federal standard: overtime only after 40 hours in a workweek, with no daily threshold. However, these states impose daily overtime:

In daily overtime states, overtime is calculated on both a daily and weekly basis, and the employee receives whichever produces the higher pay. Hours that qualify as daily overtime are not double-counted for weekly overtime purposes.

Worked Examples: Putting It All Together

Example 1: Standard Weekly Overtime

Maria earns $18/hour in Texas (federal rules only). She works 44 hours this week.

• Regular: 40 × $18 = $720
• Overtime: 4 × $27 = $108
• Total: $828

Example 2: California Daily + Weekly Overtime

James earns $22/hour in California. His week: Mon 10 hrs, Tue 10 hrs, Wed 10 hrs, Thu 10 hrs, Fri 6 hrs = 46 total hours.

Daily calculation first (overtime after 8 hrs/day):

• Mon–Thu: 4 days × 2 overtime hours = 8 daily OT hours
• Friday: 6 hours, no daily OT

Weekly: 46 total hours, but 8 are already counted as daily OT. The remaining 38 regular hours don't exceed 40, so no additional weekly OT applies.

• Regular: 38 × $22 = $836
• Daily overtime: 8 × $33 = $264
• Total: $1,100

In a federal-only state, James would earn: 40 × $22 + 6 × $33 = $880 + $198 = $1,078. California's daily overtime gives James an extra $22.

Example 3: Overtime with Non-Discretionary Bonus

Lisa earns $20/hour and receives a $150 weekly attendance bonus (non-discretionary). She works 48 hours.

1. Straight-time: 48 × $20 = $960
2. Total compensation: $960 + $150 = $1,110
3. Regular rate: $1,110 ÷ 48 = $23.125/hour
4. OT premium: $23.125 × 0.5 = $11.5625 per OT hour
5. Total OT premium: 8 × $11.5625 = $92.50
6. Total pay: $1,110 + $92.50 = $1,202.50

A common employer error is calculating overtime at $20 × 1.5 = $30/hour, ignoring the bonus. That would yield $960 + $150 + (8 × $10) = $1,190 — underpaying Lisa by $12.50. Over a year, these small errors compound into significant wage theft.

Exempt Categories: Who Doesn't Get Overtime

Not everyone qualifies for overtime. The FLSA defines several exemption categories. To be exempt, an employee must meet both a salary test and a duties test:

Job title alone does not determine exemption. An "Assistant Manager" who spends 90% of their time doing the same work as non-exempt employees is likely non-exempt, regardless of title. Learn more about these classifications in our salary vs hourly pay guide.

Verifying Your Overtime Pay

Every pay period, take five minutes to verify your overtime calculation:

1. Add your total hours for the week using our work hours calculator.
2. Subtract 40 to find your overtime hours (or check daily hours if you're in a daily OT state).
3. Multiply overtime hours by 1.5× your regular rate.
4. Compare the result to what your paycheck stub shows.
5. If there's a discrepancy, raise it with payroll immediately.

Our overtime calculator automates this entire process — enter your rate and hours, and it computes regular pay, overtime pay, and total gross earnings instantly.