Quick Facts: CSRS

Eligibility | Covered Service | Transfer Requirement | Claims | Basic Annuity Computations | Basic Annuity Reductions | Basic Annuity Cost of Living Increases

How do I compute the CSRS basic annuity?

2.5% x high-3 average salary, multiplied by 20 years; plus 

2% x high-3 average salary, multiplied by any additional year of creditable service exceeding 20 years 

CSRS - BASIC ANNUITY COMPUTATION FORMULA

Sample Annuity Computation for Civil Service Retirement System (CSRS) 

Employee A 

  • Full-time Schedule 
  • Age 51

Work History:

  • 20 years, 6 months covered firefighter service 
  • 4 years military service (deposit paid) 
  • 2 years non-fire service 

Total service for annuity = 26 years, 6 months 

High-3 salary =

2.5% x $28,000 =

2% x 28,000 =

TOTAL =

 $ 28,000
  
$700 x 20 years = $14,000

560 x 6.5 years = 3,640 

$17,640


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Revised 05/03/2002

 

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