How to Calculate Overtime for Biweekly Payroll (2026 Step-by-Step Guide)

How to Calculate Overtime for Biweekly Payroll in 2026

If you run a biweekly payroll (every 14 days, 26 paychecks a year), the single most common mistake is treating the 80-hour pay period as the overtime threshold. Under the Fair Labor Standards Act (FLSA), overtime is never calculated on the biweekly total. It is calculated on each fixed 7-day workweek inside that biweekly period — separately — under 29 CFR §778.105.

This 2026 guide walks payroll administrators, small-business owners, and hourly employees through the exact 6-step process to calculate overtime correctly on a biweekly paycheck, with worked examples, the FLSA formulas, and state-specific rules for California, Nevada, Colorado, and Alaska.

> Quick answer: Split the 14-day pay period into two 7-day workweeks. Total hours in each week independently. Pay 1.5× the regular rate for every hour over 40 in each workweek. Add the two weeks together for the biweekly gross. Never average.

Need to skip the math? Use our free overtime pay calculator — it applies FLSA and state rules automatically.

The Core FLSA Rule for Biweekly Payroll

Under 29 USC §207(a)(1), every non-exempt employee must receive overtime "for a workweek longer than forty hours… at a rate not less than one and one-half times the regular rate." The Department of Labor defines a workweek in 29 CFR §778.105 as a fixed and regularly recurring period of 168 hours — seven consecutive 24-hour periods. It need not coincide with the calendar week but may begin on any day and at any hour of the day.

Three rules flow from this definition that every biweekly payroll must follow:

• . The workweek is fixed in advance. Once your employer picks (for example) "Sunday 12:00 AM through Saturday 11:59 PM," it cannot be changed week-to-week to dodge overtime.
• . The pay period does not control overtime. Biweekly, semimonthly, and monthly pay schedules are payroll conveniences. Overtime is owed on the workweek the hours were earned.
• . Workweeks cannot be averaged. A 50-hour week + a 30-hour week = 10 hours of overtime owed, not zero. (See DOL Fact Sheet #23.)

The 6-Step Process to Calculate Biweekly Overtime

Use this exact sequence every pay period. It works for hourly, salaried non-exempt, and tipped employees.

Step 1 — Identify the Employer's Posted Workweek Start

Find the official 7-day workweek your employer has established and posted (usually in the employee handbook or on the timeclock). Common examples: Sunday 12:00 AM → Saturday 11:59 PM, Monday 12:00 AM → Sunday 11:59 PM, or Thursday 6:00 AM → Wednesday 5:59 AM for manufacturing shifts. This start day is the only thing that matters for splitting hours — not when the biweekly check is issued.

Step 2 — Split the 14-Day Pay Period Into Two Workweeks

A biweekly pay period always contains exactly two complete workweeks. Draw a line down the middle on the time card. Hours worked on the boundary day belong to the workweek that day falls in, based on the shift start time.

Step 3 — Total Hours in Each Workweek Separately

Add all compensable hours in Week 1. Add all compensable hours in Week 2. Do not add them together. Compensable hours include hours physically worked, paid travel time during the workday, short rest breaks under 20 minutes, and on-call time the employee cannot use freely. Excluded: vacation, sick, holiday, PTO, and unpaid meal breaks of 30+ minutes — these do not count toward the 40-hour overtime threshold under 29 CFR §778.218.

Step 4 — Calculate the Regular Rate of Pay

For a straight hourly worker, the regular rate is simply the hourly rate. But if the employee received nondiscretionary bonuses (production, attendance, safety), shift differentials, commissions, piece-rate earnings, or the cash value of non-cash compensation, you must include them in the regular rate before multiplying by 1.5.

Regular rate formula: Regular Rate = (Total straight-time earnings + nondiscretionary bonuses) ÷ Total hours worked in the workweek.

See our full weighted average overtime calculation guide for multi-rate examples.

Step 5 — Apply the 1.5× Overtime Formula to Each Week

For each workweek where hours exceeded 40: Overtime Pay (Week) = (Hours over 40) × Regular Rate × 1.5. Straight-Time Pay (Week) = Hours up to 40 × Regular Rate.

Step 6 — Add the Two Weeks Together for the Biweekly Gross

Biweekly Gross = (Week 1 Straight + Week 1 OT) + (Week 2 Straight + Week 2 OT). That number is what goes on the paycheck before taxes.

Worked Example: Biweekly Paycheck With Overtime

Setup: Sarah is a non-exempt warehouse worker in Texas. Her regular hourly rate is $22.00. Her employer's workweek runs Sunday–Saturday. She is paid biweekly on Fridays.

Time card for pay period May 24 – June 6, 2026: Week 1 (Sun May 24 – Sat May 30) = 46 hours. Week 2 (Sun May 31 – Sat Jun 6) = 38 hours. Biweekly total = 84 hours.

Week 1 calculation (46 hours)

• Straight time: 40 × $22.00 = $880.00
• Overtime: 6 × $22.00 × 1.5 = $198.00
• Week 1 gross: $1,078.00

Week 2 calculation (38 hours — under 40, no OT)

• Straight time: 38 × $22.00 = $836.00
• Overtime: $0.00
• Week 2 gross: $836.00

Biweekly paycheck

$1,078.00 + $836.00 = $1,914.00 gross.

What an illegal "average" would have looked like

Some employers wrongly average 84 hours ÷ 2 = 42 hours/week, then pay only 2 hours OT × $22 × 1.5 = $66. That underpays Sarah by $132 per pay period and violates FLSA. The DOL routinely recovers these back wages plus liquidated damages.

Biweekly Overtime Formula Cheat Sheet

For each workweek (do not combine): if hours_worked ≤ 40, week_pay = hours_worked × regular_rate. Otherwise: straight_pay = 40 × regular_rate, overtime_pay = (hours_worked − 40) × regular_rate × 1.5, and week_pay = straight_pay + overtime_pay. Finally, biweekly_gross = week_1_pay + week_2_pay.

State-Specific Rules That Override the Federal Default

Four states require daily overtime in addition to the weekly 40-hour rule. On a biweekly payroll you must apply the higher of federal or state OT in each workweek:

• California — 1.5× after 8 hrs/day, 2× after 12 hrs/day, 2× after 8 hrs on the 7th consecutive day. CA calculator
• Alaska — 1.5× after 8 hrs/day OR 40 hrs/week. AK calculator
• Nevada — 1.5× after 8 hrs/day if earning less than 1.5× state min wage. NV calculator
• Colorado — 1.5× after 12 hrs/day OR 40 hrs/week OR 12 consecutive hours. CO calculator

States without daily OT but with strict weekly enforcement: Texas, Florida, New York, Illinois.

For California, the daily threshold means a 4-day × 12-hour week (48 hrs) generates 16 hours of OT even though the weekly total is only 48 — federal would only owe 8.

Special Biweekly Payroll Scenarios

Scenario 1 — Holiday in the Middle of a Workweek

Paid holiday hours do not count toward the 40-hour OT threshold. If an employee works 40 hours Mon–Fri and takes 8 paid holiday hours on Monday, they have 40 worked hours + 8 holiday hours = 48 paid hours but $0 overtime.

Scenario 2 — Salaried Non-Exempt on Biweekly

For a salaried non-exempt employee paid $1,200/biweekly for an expected 80 hours: Regular Rate = $1,200 ÷ 80 = $15.00/hour. If they work 45 hours in Week 1 and 35 in Week 2, the salary covers the first 40 in Week 1, and the OT premium is 5 × $15.00 × 0.5 = $37.50 additional. Week 2 (35 hrs) gets no additional pay. Total biweekly: $1,200 + $37.50 = $1,237.50. See overtime for salaried employees.

Scenario 3 — Nondiscretionary Bonus Paid Biweekly

A $200 production bonus earned across the 2-week period must be allocated to each workweek proportionally. If Week 1 = 46 hrs and Week 2 = 40 hrs (total 86), allocate Week 1 bonus share = $200 × (46/86) = $107.00 and Week 2 bonus share = $200 × (40/86) = $93.00. Then recompute the regular rate for Week 1 ($22 hourly + $107 ÷ 46 hrs = $24.33), and pay an additional 0.5 × $24.33 × 6 OT hrs = $72.99 in extra OT premium. Full math in our bonus overtime guide.

Scenario 4 — The "8 and 80" Exception (Hospitals Only)

Hospitals and residential care facilities can elect a 14-day "8 and 80" period under 29 USC §207(j). With a signed written agreement before the work, they pay OT for hours over 8 in a day or over 80 in the 14-day period. This is the only legal way to use a 14-day overtime threshold.

Scenario 5 — Public Sector Comp Time

Public-sector employers (city, county, state, federal) can offer compensatory time off at 1.5× instead of cash overtime under 29 USC §207(o). Private employers cannot. See comp time vs overtime.

2026 Tax Treatment of Biweekly Overtime

Starting in tax year 2026, qualifying overtime premium pay (the 0.5× extra above the regular rate, not the full 1.5×) is deductible up to $12,500 (single) or $25,000 (married filing jointly) under the No Tax on Overtime provision of the One Big Beautiful Bill Act (Pub. L. 119-21).

Payroll systems should report qualifying OT premium on Form W-2 Box 14, code OTP, per IRS Notice 2025-69. The deduction phases out above $150K/$300K MAGI. State tax treatment varies — see our how overtime is taxed guide.

Common Biweekly Payroll Mistakes (and DOL Penalties)

• Averaging 80 hrs across 2 weeks — Violates 29 CFR §778.105. Penalty: 2 years back wages + liquidated damages = 2× back pay.
• Changing the workweek to avoid OT — Violates 29 CFR §778.105. Penalty: back wages + civil money penalty up to $2,515/violation.
• Excluding nondiscretionary bonuses from regular rate — Violates 29 CFR §778.208. Penalty: back wages on recomputed regular rate.
• Paying straight time for OT hours — Violates 29 USC §207(a). Penalty: 1.5× back wages + liquidated damages.
• Misclassifying a salaried non-exempt as exempt — Violates 29 CFR §541. Penalty: all back OT + damages + IRS payroll-tax penalties.

The DOL Wage and Hour Division recovered $273 million in back wages from FLSA violations in FY2024 — most from biweekly miscalculations.

Frequently Asked Questions

Can I calculate overtime on the biweekly total instead of each workweek?

No. The FLSA explicitly requires overtime on each fixed 7-day workweek under 29 CFR §778.105. Calculating on the biweekly total (80 hours) is a violation, even if both employer and employee agree.

My pay period starts on Wednesday — is that my workweek?

Not necessarily. The pay period is when paychecks are issued. The workweek is the separate 7-day OT period your employer has posted. They can be different days.

What if my biweekly pay period contains parts of three workweeks?

That happens when the workweek and pay period start on different days. Allocate hours from each workweek to the pay period they fall in, calculate OT per workweek, then pay the OT in the paycheck covering the workweek the hours were earned.

Is overtime due on the next biweekly check if it was earned mid-period?

Yes. Under 29 CFR §778.106, overtime must be paid on the regular payday for the pay period in which the workweek ends. You can't delay it to a later check.

Do paid holidays count toward the 40-hour OT threshold in a biweekly period?

No. Only hours actually worked count toward the 40-hour weekly threshold under 29 CFR §778.218. Holiday, vacation, sick, and PTO are excluded.

How do I calculate biweekly overtime for an employee with two pay rates?

Use the weighted average method: total earnings ÷ total hours = blended regular rate, then pay 0.5× that rate for each OT hour. See our weighted average overtime guide.

Can my employer make me take comp time instead of biweekly OT pay?

Only if you are a public-sector employee under 29 USC §207(o) with a written agreement. Private-sector employers must pay cash overtime on the regular biweekly payday.

Is overtime calculated before or after taxes on a biweekly check?

Before. OT is calculated on gross earnings. Taxes are withheld after the gross is computed. The 2026 No Tax on Overtime deduction is claimed on the employee's federal Form 1040, not at withholding.

What's the simplest way to verify my biweekly OT is correct?

Use our overtime pay calculator — enter each workweek's hours separately. It applies FLSA and state daily-OT rules automatically and shows the breakdown.

Related Guides

• Is overtime calculated weekly or biweekly?
• Biweekly overtime pay calculation 2026
• Time and a half pay calculator guide 2026
• Weighted average overtime calculation 2026
• Salary to hourly overtime conversion 2026
• How overtime is taxed in 2026

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*Sources: 29 USC §207, 29 CFR §§778.105, 778.106, 778.208, 778.218, DOL Fact Sheet #23, DOL Fact Sheet #54 (8 and 80), IRS Notice 2025-69, Public Law 119-21 (One Big Beautiful Bill Act). Last reviewed June 8, 2026.*