FERS Retirement Calculator
Calculate Your FERS Retirement Benefits
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Your Estimated Retirement Income
Based on your inputs, here's your projected retirement benefits
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| Scenario | Age | Monthly Annuity | Annual Annuity | SRS (Monthly) | Total Monthly |
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How the FERS Calculator Works
The FERS Retirement Formula
The FERS basic annuity is calculated using a simple formula:
High-3 Average Salary × Years of Service × Coefficient (1% or 1.1%)
The coefficient depends on your age and years of service:
- 1% coefficient: Standard calculation for most retirees
- 1.1% coefficient: If you retire at age 62 or older with at least 20 years of service
- 1.7% coefficient: For law enforcement officers, firefighters, and air traffic controllers (first 20 years)
Example Calculation
Scenario: John retires at age 62 with 30 years of service and a High-3 salary of $80,000.
Calculation: $80,000 × 30 years × 1.1% = $26,400 per year
Monthly Benefit: $26,400 ÷ 12 = $2,200 per month
Additional Benefits
In addition to your basic annuity, FERS retirement may include:
- Special Retirement Supplement (SRS): A bridge payment until you're eligible for Social Security at age 62
- Thrift Savings Plan (TSP): Your defined contribution account with agency matching
- Social Security: Available at full retirement age (62-67 depending on birth year)
Frequently Asked Questions
FERS (Federal Employees Retirement System) is the retirement system for most federal employees hired after 1983. It provides three sources of retirement income:
- Basic Benefit Plan: A defined benefit pension based on your salary and years of service
- Social Security: Standard Social Security benefits
- Thrift Savings Plan (TSP): A defined contribution plan similar to a 401(k) with agency matching
The FERS basic annuity formula is: High-3 Average Salary × Years of Creditable Service × Coefficient
The coefficient is typically 1% for most retirees, or 1.1% if you retire at age 62 or older with at least 20 years of service.
For example, with a $80,000 high-3 and 30 years of service retiring at age 62: $80,000 × 30 × 1.1% = $26,400 per year or $2,200 per month.
Your High-3 average salary is the highest average basic pay you earned during any 3 consecutive years of federal service (or 36 consecutive months). It includes:
- Base salary
- Locality pay
It excludes bonuses, overtime, allowances, and other special payments. Most employees' High-3 occurs during their final 3 years before retirement when their salary is highest.
FERS retirement eligibility depends on your age and years of service. The most common combinations are:
- Age 62 with at least 5 years of service
- Age 60 with at least 20 years of service
- Minimum Retirement Age (MRA) with at least 30 years of service
- MRA with at least 10 years of service (benefit reduced by 5% per year under age 62)
Your MRA ranges from 55 to 57 depending on your birth year.
Unused sick leave is converted to additional service credit when you retire. This increases your total years of service, which directly increases your annuity.
The conversion rate is approximately 174 hours = 1 month of service credit. For example, 2,088 hours of unused sick leave would add about 1 year to your service record.
This can result in hundreds or even thousands of dollars in additional annual pension benefits.
Buying back military service time can significantly increase your FERS pension. The cost is typically 3% of your military basic pay plus interest.
The benefit is that each year of military service adds to your total federal service years, increasing your annuity. For most employees, the break-even point is 3-5 years after retirement.
If you have military service, we recommend using our Military Buyback Calculator for a detailed analysis.
Additional FERS Resources
FERS Pension Calculator
Our specialized pension calculator focuses on basic annuity calculations with detailed breakdowns.
Try Pension Calculator →High-3 Salary Guide
Learn how to calculate and maximize your High-3 average salary for a larger pension.
Read Guide →Sick Leave Conversion
Calculate how much your unused sick leave adds to your retirement benefits.
Use Calculator →Military Buyback
Determine if buying back your military service time is worth the investment.
Calculate ROI →FERS Formula Explained
Comprehensive guide to understanding how FERS retirement benefits are calculated.
Learn More →Real Calculation Examples
See actual FERS retirement calculations for different scenarios and career paths.
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