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OPM.gov / Policy / Pay & Leave / Pay Administration
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How to Compute Rates of Pay

Fact Sheet: How to Compute Rates of Pay

Background

Hourly and biweekly rates for General Schedule employees are computed under 5 U.S.C. 5504. Premium pay is computed under 5 U.S.C. chapter 55, subchapter V, and 5 CFR part 550, subpart A. The rates are computed based on an employee’s annual rate of basic pay, including any applicable special rate supplement or locality payment. (Note: Overtime pay for nonexempt employees is computed under the Fair Labor Standards Act, subject to some special rules for Federal employees. See 5 CFR part 551. In addition, firefighters covered by 5 U.S.C. 5545b are subject to special rules for computing hourly rates and overtime pay. See 5 CFR part 550, subpart M.)

Rules for Rounding

Rates must be rounded to the nearest cent, counting one-half cent and over as the next higher cent (e.g., round $18.845 to $18.85).

Procedure

Follow the rules below to compute rates of pay. (Note: The examples below are based on annual rates that have been increased by a locality pay percentage of 33.94%. See Salary Table 2025-DCB.)

  1. Hourly Rate.

    Divide annual rate of basic pay by 2,087 hours.
    GS-9, step 1 = $68,405.
    $69,923 / 2,087 hours = $33.50.

  2. Biweekly Rate.

    Multiply hourly rate of basic pay by 80 hours.
    $33.50 x 80 hours = $2,680.

  3. Title 5 Overtime Hourly Rate
    1. if employee's rate of basic pay is less than rate of basic pay for GS-10, step 1

      Multiply hourly rate of basic pay by 1.5.
      $33.50 x 1.5 = $50.25.

    2. if employee's rate of basic pay is more than rate of basic pay for GS-10, step 1

      Use the greater of (1) the GS-10, step 1, hourly rate of basic pay multiplied by 1.5 or (2) the employee’s hourly rate of basic pay.  (5 CFR 550.113)

      GS-10, step 1 = $77,001.
      $77,001 / 2,087 hours = $36.90.
      $36.90 x 1.5 = $55.35.

      GS-14, step 1 = $142,488.
      $142,488 / 2,087 hours = $68.27.

      In this example, the employee’s hourly rate of basic pay ($68.27) is greater than the GS-10, step 1, hourly rate of basic pay multiplied by 1.5 ($55.35). Therefore, the employee’s title 5 overtime hourly rate is equal to their hourly rate of basic pay.

  4. Night Pay.

    Multiply hourly rate of basic pay by 10%. (5 CFR 550.121)

    GS-9, step 1 = $69,923.
    $69,923 / 2,087 hours = $33.50.
    $33.50 x 0.10 = $3.35.
  5. Sunday Premium Pay.

    Multiply hourly rate of basic pay by 25%. (5 CFR 550.171)

    $33.50 x 0.25 = $8.38.

  6. Holiday Premium Pay.

    Multiply hourly rate of basic pay by number of non-overtime hours worked on holiday (not to exceed 8 hours or the number of non-overtime hours of a compressed work schedule). (5 CFR 550.131 and 5 CFR 610.407)

    $33.50 x 8 hours = $268.

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