Fluctuating Workweek Overtime Calculator
Calculate salaried non-exempt overtime pay under the FLSA Fluctuating Workweek (FWW) method (0.5x half-time rate). Compare FWW vs traditional 1.5x pay.
Salaried Non-Exempt Inputs
- Fixed Base Salary (Covers all 50.00 hrs) $900.00
- Overtime Hours Worked (>40h) 10.00 hrs
- FWW Half-Time Premium (10.00h @ $9.00) +$90.00
- Traditional 1.5× Comparison $1,237.50 (Diff: -$247.50)
- ✓ Minimum Wage Compliant Above $7.25/hr
- Total Weekly Gross Pay $990.00
Important note on the fluctuating workweek overtime calculator: The calculator on this page is provided through Codexa Tools and is designed to provide general guidance and estimates based on official 2026 IRS Publication 15-T and state revenue withholding guidelines. It should not be relied upon to calculate exact taxes, payroll, or legal financial obligations. These calculators are not intended to provide tax, legal, or accounting advice and do not represent a substitute for certified payroll processing. You should refer to a professional advisor, CPA, or licensed accountant regarding any specific requirements, local tax ordinances, or financial concerns.
FWW Overtime Scaling Table ($900 Salary)
Notice how your effective regular rate adjusts as weekly hours fluctuate, and how half-time premium is applied:
| Total Hours | Overtime Hours | Regular Rate | 0.5× Premium Rate | Overtime Pay | Total Weekly Compensation |
|---|---|---|---|---|---|
| 40 hrs | +0 hrs | $22.50/hr | $11.25/hr | +$0.00 | $900.00 |
| 45 hrs | +5 hrs | $20.00/hr | $10.00/hr | +$50.00 | $950.00 |
| 50 hrs | +10 hrs | $18.00/hr | $9.00/hr | +$90.00 | $990.00 |
| 55 hrs | +15 hrs | $16.36/hr | $8.18/hr | +$122.70 | $1,022.70 |
| 60 hrs | +20 hrs | $15.00/hr | $7.50/hr | +$150.00 | $1,050.00 |
Understanding the Fluctuating Workweek ("Chinese Overtime")
The Fluctuating Workweek (FWW) method is an alternative overtime calculation permitted under federal FLSA regulations (29 C.F.R. § 778.114) for non-exempt salaried employees.
1. The 0.5× Premium Logic
Under FWW, the fixed weekly salary pays straight-time for all hours worked (even 50 or 60 hours). Since 1.0× straight-time is already paid, the employer only owes an extra 0.5× (half-time) for hours beyond 40.
2. Legal Requirements
- The employee's hours must truly fluctuate week to week.
- There must be a clear mutual understanding.
- Salary must be guaranteed regardless of short weeks.
- Effective hourly rate must stay above minimum wage.
3. State Restrictions
FWW is illegal or prohibited in states with stricter overtime laws, including California, Pennsylvania, and Alaska, where traditional 1.5× must be paid regardless of salary.
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Frequently Asked Questions
The Fluctuating Workweek (FWW) method, governed by 29 C.F.R. § 778.114, applies to salaried non-exempt workers whose hours vary week to week. Because the fixed salary already covers straight-time pay for all hours worked, overtime hours (over 40) are paid at an additional 0.5× (half-time) premium rate instead of 1.5×.
In American workplace slang, "Chinese Overtime" is a colloquial term for the Fluctuating Workweek method. As an employee works more overtime hours, their effective hourly rate decreases because the fixed salary is divided across a larger number of total hours.
No. While permitted under federal FLSA regulations, certain states with stricter overtime protections (including California, Pennsylvania, and Alaska) prohibit or heavily restrict the fluctuating workweek method for non-exempt employees.
No. Under federal regulations, an employee’s effective regular rate (Weekly Salary ÷ Total Hours Worked) can never fall below the applicable federal, state, or local minimum wage in any workweek.