How is my FERS annuity calculated?

Your FERS annuity is calculated using the formula: years of creditable service × high-3 average salary × multiplier. The standard multiplier is 1% for most employees. If you retire at age 62 or older with at least 20 years of service, the multiplier increases to 1.1%. Special category employees (law enforcement, firefighters, air traffic controllers) receive 1.7% for the first 20 years and 1% thereafter. Your high-3 is your highest average basic pay during any 3 consecutive years of service.

What is the FERS supplement?

The FERS supplement is a special benefit that approximates the Social Security benefit you earned while employed under FERS. It's designed to bridge the income gap from retirement until you're eligible for Social Security at age 62. You only receive the supplement if you retire at your Minimum Retirement Age (MRA) with 30 years of service, or at age 60 with 20 years. The supplement ends when you turn 62, regardless of when you claim Social Security.

When can I retire under FERS?

FERS offers several retirement options depending on your age and service. Immediate retirement is available at age 62 with 5 years of service, age 60 with 20 years, or at your MRA with 30 years. You can also retire at your MRA with 10-29 years, but you'll face a 5% per year reduction for each year under age 62. Your MRA depends on your birth year — it's age 56 for those born 1953-1964, and gradually increases to age 57 for those born 1970 or later.

Should I buy back my military time?

Buying back military service credit can increase your FERS annuity by adding years to your creditable service calculation. The cost is typically 3% of your military base pay, plus interest if you make the deposit after your first three years of federal civilian service. Whether it makes financial sense depends on your specific situation — how much service time you'd add, how close you are to retirement, and your life expectancy. We can calculate the exact payback period and lifetime value for your situation.

What happens to my pension if I leave early?

If you leave federal service before meeting immediate retirement eligibility, you have options depending on your years of service. With at least 5 years of FERS coverage, you can leave your contributions in the system and receive a deferred retirement benefit starting at age 62. With 10 or more years, you can begin receiving benefits at your MRA, though with a reduction if you're under 62. Alternatively, you can request a refund of your FERS contributions, but this means forfeiting your future annuity and the government's contributions.

FERS Retirement

Maximize Your Federal

Pension.

Your FERS pension forms the foundation of your federal retirement. Understanding your annuity calculation, retirement timing, and benefit coordination requires specialized expertise to maximize lifetime value. Start with our free FERS calculator to see where you stand.

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"Your FERS pension could be worth nearly $1 million over your retirement."

Mike Stevens

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FERS Formula

Service × High-3 × Multiplier

Standard Multiplier

1.0% (1.1% enhanced)

MRA + 30 Years

Full pension + supplement

COLA Protection

Full inflation adjustment

Military Buyback

3% of base pay + interest

FERS Foundation Components

Your Federal Employees Retirement System includes multiple benefits that must work together for optimal retirement income coordination.

Annuity Calculation

Master the formula: years of service × high-3 salary × multiplier. Understand when you qualify for the enhanced 1.1% multiplier and how special category employees get 1.7%.

Retirement Eligibility

Multiple pathways to retirement with different requirements and benefits. Know your MRA, understand immediate versus deferred retirement, and optimize your timing.

FERS Supplement

Bridge benefit from retirement until Social Security eligibility at 62. Understand who qualifies, earnings test limits, and coordination strategies.

Survivor Benefits

Critical irrevocable decision on spouse protection. Compare full survivor benefit, partial benefits, and no election to optimize lifetime income.

The Foundation

Your FERS Investment.

Pension Value

Lifetime Benefits

Average FERS Annuity $1,834/mo

30-Year Career Value $650Klifetime

Employee Contribution 0.8%of salary

Your FERS pension represents enormous value — often worth more than your TSP balance. Small optimizations in timing and coordination can add tens of thousands in lifetime benefits.

Optimization Areas

Maximize Your Benefits

Strategic FERS planning coordinates multiple moving pieces to optimize your lifetime benefits through careful timing and election decisions.

High-3 salary timing
Retirement date optimization
Military service buyback analysis
Sick leave credit maximization
Survivor benefit evaluation
FERS supplement coordination
Social Security timing
Tax minimization strategies

Federal government building representing FERS system

Strategic Planning

Beyond the
Basic Formula

While the FERS annuity formula appears simple, optimizing your benefits requires understanding eligibility nuances, timing strategies, and coordination with other federal benefits and outside assets.

Military Service Credit

Buying back military time can add years to your service calculation. We analyze the cost versus lifetime benefit to determine if the 3% deposit makes financial sense for your situation.

Sick Leave Conversion

Unused sick leave converts to additional service credit at retirement. Strategic leave management in your final years can boost your annuity calculation and lifetime benefits.

Reference

Sick Leave Conversion Chart

See how your unused sick leave hours convert to additional months and days of creditable service under FERS. Find your sick leave balance in the left column, then read across to find the added service credit.

Hours	0 Days	1 Day	2 Days	3 Days	4 Days	5 Days	6 Days	7 Days	8 Days	9 Days	10 Days	11 Days	12 Days	13 Days	14 Days	15 Days	16 Days	17 Days	18 Days	19 Days	20 Days	21 Days	22 Days	23 Days	24 Days	25 Days	26 Days	27 Days	28 Days	29 Days
0 Mo	0	6	12	17	23	29	35	41	46	52	58	64	70	75	81	87	93	99	104	110	116	122	128	133	139	145	151	157	162	168
1 Mo	174	180	186	191	197	203	209	215	220	226	232	238	244	249	255	261	267	273	278	284	290	296	302	307	313	319	325	331	336	342
2 Mo	348	354	360	365	371	377	383	389	394	400	406	412	418	423	429	435	441	447	452	458	464	470	476	481	487	493	499	505	510	516
3 Mo	522	528	534	539	545	551	557	563	568	574	580	586	592	597	603	609	615	621	626	632	638	644	650	655	661	667	673	679	684	690
4 Mo	696	702	708	713	719	725	731	737	742	748	754	760	766	771	777	783	789	795	800	806	812	818	824	829	835	841	847	853	858	864
5 Mo	870	876	882	887	893	899	905	911	916	922	928	934	940	945	951	957	963	969	974	980	986	992	998	1003	1009	1015	1021	1027	1032	1038
6 Mo	1044	1050	1056	1061	1067	1073	1079	1085	1090	1096	1102	1108	1114	1119	1125	1131	1137	1143	1148	1154	1160	1166	1172	1177	1183	1189	1195	1201	1206	1212
7 Mo	1218	1224	1230	1235	1241	1247	1253	1259	1264	1270	1276	1282	1288	1293	1299	1305	1311	1317	1322	1328	1334	1340	1346	1351	1357	1363	1369	1375	1380	1386
8 Mo	1392	1398	1404	1409	1415	1421	1427	1433	1438	1444	1450	1456	1462	1467	1473	1479	1485	1491	1496	1502	1508	1514	1520	1525	1531	1537	1543	1549	1554	1560
9 Mo	1566	1572	1578	1583	1589	1595	1601	1607	1612	1618	1624	1630	1636	1641	1647	1653	1659	1665	1670	1676	1682	1688	1694	1699	1705	1711	1717	1723	1728	1734
10 Mo	1740	1746	1752	1757	1763	1769	1775	1781	1786	1792	1798	1804	1810	1815	1821	1827	1833	1839	1844	1850	1856	1862	1868	1873	1879	1885	1891	1897	1902	1908
11 Mo	1914	1920	1926	1931	1937	1943	1949	1955	1960	1966	1972	1978	1984	1989	1995	2001	2007	2013	2018	2024	2030	2036	2042	2047	2053	2059	2065	2071	2076	2082

Based on a 2,087-hour work year. 1 month = 174 hours, 1 day ≈ 5.797 hours. Source: OPM FERS guidelines.

How to Read This Chart

Find the row matching your full months of credit, then read across to the column for remaining days. The number in the cell is the total sick leave hours needed. For example, to earn 3 months and 10 days of additional service credit, you need 580 hours of unused sick leave.

Why Sick Leave Matters

Under FERS, unused sick leave at retirement is converted to creditable service for annuity computation. This can meaningfully boost your pension. If you have 1,044 hours (6 months) of sick leave, that adds half a year of service to your annuity calculation.

Need Help Calculating?

Your sick leave balance, combined with your years of service and high-3 salary, determines your total pension. Schedule a consultation for a personalized FERS benefit analysis.

Common Questions

FERS Planning FAQ

Essential information about maximizing your Federal Employees Retirement System benefits and optimizing your federal pension.

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Your federal pension represents hundreds of thousands in lifetime value. Use our FERS retirement calculator for a quick estimate, then schedule a comprehensive review to ensure you're maximizing every dollar.

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Federal Employee Specialists

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