FERS Survivor Annuity Calculator: How Much Does It Cost and What Does Your Spouse Get?

The FERS survivor annuity election costs you either 10% or 5% of your basic annuity every month for the rest of your life. Most federal employees know those percentages exist but have no idea what they translate to in actual dollars — or what their spouse would actually receive after they die. Running the numbers before you file SF 3107 Section D is the only way to make this decision with clear eyes.

How the FERS Survivor Annuity Reduction Works

FERS gives you three survivor annuity options at retirement. The reduction comes off your unreduced basic annuity — not your gross pay, not your take-home, and not your High-3 salary. OPM calculates your unreduced basic annuity first, then applies the survivor reduction before any other deductions (FEHB premiums, tax withholding, FEGLI).

Here's the math for each option:

• Maximum survivor annuity: 10% reduction to your monthly check. Your spouse receives 50% of your unreduced basic annuity after your death.
• Partial survivor annuity: 5% reduction. Your spouse receives 25% of your unreduced basic annuity.
• No survivor annuity: 0% reduction. Your spouse receives nothing from FERS — and permanently loses eligibility for FEHB or PSHB health coverage.

The reduction is permanent. It stays in place for the rest of your life (or until your spouse dies or you divorce, at which point OPM removes it — unless a court order awards a survivor annuity to a former spouse).

Sample Calculations at Common High-3 Salary Levels

The FERS basic annuity formula for most employees is 1% of your High-3 average salary multiplied by years of creditable service (1.1% if you retire at age 62 or later with at least 20 years). These examples use the 1% multiplier.

30 years of service, $95,000 High-3:

• Unreduced annuity: $95,000 × 1% × 30 = $28,500/year ($2,375/month)
• Maximum survivor: You receive $2,137.50/month (after 10% cut). Spouse gets $1,187.50/month after your death.
• Partial survivor: You receive $2,256.25/month (after 5% cut). Spouse gets $593.75/month.

25 years, $110,000 High-3:

• Unreduced annuity: $27,500/year ($2,291.67/month)
• Maximum survivor: You receive $2,062.50/month. Spouse gets $1,145.83/month.
• Partial survivor: You receive $2,177.08/month. Spouse gets $572.92/month.

32 years, $130,000 High-3:

• Unreduced annuity: $41,600/year ($3,466.67/month)
• Maximum survivor: You receive $3,120/month. Spouse gets $1,733.33/month.
• Partial survivor: You receive $3,293.33/month. Spouse gets $866.67/month.

The difference between the maximum and partial election — that extra 5% — buys your spouse an additional 25 percentage points of coverage. For someone with a $28,500 unreduced annuity, that 5% costs $118.75/month but provides an extra $593.75/month to your surviving spouse.

COLAs Grow Both Sides of the Equation

FERS survivor annuities receive annual cost-of-living adjustments. For 2026, the FERS COLA is 2.0%. COLAs for FERS are capped: if the CPI increase is 2% or less, the COLA matches the CPI. If the CPI increase is between 2% and 3%, the COLA is capped at 2%. If it exceeds 3%, the COLA equals the CPI minus 1 percentage point.

This means your spouse's survivor annuity grows over time — it is not a fixed amount locked to the year you retired. Over a 20-year survivorship, even modest COLAs compound meaningfully. A $1,187 monthly survivor annuity growing at an average 2% annual COLA becomes roughly $1,764 per month after 20 years.

This inflation adjustment is one of the key advantages the FERS survivor annuity has over fixed-sum alternatives like life insurance payouts, which lose purchasing power every year.

The 10% Reduction Is Not 10% of Your Paycheck

A common misconception: the 10% survivor reduction sounds expensive because people hear "10%" and think of their total income. The reduction only applies to the FERS basic annuity — it does not touch your Social Security, TSP withdrawals, or any other retirement income source.

For a household where the retiree collects $2,375/month in FERS annuity plus $2,200/month in Social Security plus $1,500/month from TSP, the maximum survivor election costs $237.50/month out of a total retirement income of $6,075. That is 3.9% of total household retirement income — considerably less alarming than 10%.

When the Partial Election Makes Sense

The partial survivor annuity exists for a specific reason: it is the minimum election that preserves your spouse's lifetime FEHB or PSHB health insurance eligibility. The amount of the survivor annuity does not matter for healthcare continuation — your spouse qualifies for lifetime coverage whether they receive 50% or 25%, as long as they receive something.

If your household can cover the income gap through TSP savings, Social Security survivor benefits, or other assets, and your primary concern is protecting health coverage, the partial election costs half as much while still keeping the healthcare door open.

What the Survivor Annuity Does Not Cover

The FERS survivor annuity is just one piece of the puzzle. It does not replace or control:

• TSP death benefits: governed by Form TSP-3, distributed separately
• FEGLI life insurance proceeds: governed by SF 2823, paid independently
• Social Security survivor benefits: a separate SSA claim (and with the 2025 WEP/GPO repeal, previously-offset benefits are now paid in full)
• Unpaid FERS contributions: governed by SF 3102

Each of these has its own beneficiary designation. Your will does not override any of them. If you want your spouse protected across all four, you need to update all four forms — not just the survivor election on SF 3107.

Running Your Own Numbers

OPM does not publish an interactive survivor annuity calculator, but the math is straightforward: take your estimated unreduced basic annuity, multiply by 10% (maximum) or 5% (partial) for your monthly cost, and multiply the unreduced annuity by 50% or 25% for your spouse's monthly benefit. Your agency HR office can provide an official annuity estimate that gives you the unreduced figure to work from.

For a structured walkthrough that helps you and your spouse model the full household impact — including the interaction with Social Security, TSP, and FEHB continuation — the FERS Survivor Benefit Election Guide walks through each scenario with comparison worksheets designed for family discussion.

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