Basic Annuity Formula:
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The FERS (Federal Employees Retirement System) Basic Annuity is a pension benefit calculated based on your high-3 average salary, years of creditable service, and a percentage multiplier. It forms one part of the three-component FERS retirement system.
The calculator uses the basic FERS annuity formula:
Where:
Note: For employees retiring at age 62 or later with 20+ years of service, the multiplier increases to 1.1%.
Details: Understanding your potential basic annuity helps in retirement planning and determining when you can afford to retire. It represents the foundation of your FERS retirement benefits.
Tips: Enter your high-3 average salary in USD/year and your total years of creditable service. Both values must be positive numbers.
Q1: What is included in the high-3 salary?
A: The high-3 average is based on your highest 3 consecutive years of basic pay, which includes locality pay but not bonuses or overtime.
Q2: How is part-time service calculated?
A: Part-time service is counted as full-time for eligibility but prorated for computation (e.g., 20 years half-time = 10 years credit).
Q3: Are there different multipliers for different situations?
A: Yes, law enforcement and other special categories use 1.7% for first 20 years and 1% thereafter. Age 62+ with 20+ years uses 1.1%.
Q4: How does unused sick leave affect the calculation?
A: Unused sick leave is converted into additional service time (1,744 hours = 1 year) but can't be used to meet minimum retirement requirements.
Q5: Is there a maximum annuity amount?
A: The maximum annuity is generally 80% of your high-3 average salary, though this is rare under FERS.