FERS Supplement Earnings Test: The Trap Nobody Plans For

A federal employee retiring under FERS with 30 years of service at their Minimum Retirement Age plans on three pieces of retirement income: the FERS basic annuity, the Thrift Savings Plan, and the FERS Supplement, also called the Special Retirement Supplement or SRS. The basic annuity and the TSP are straightforward. The Supplement is not. It is the most misunderstood piece of the FERS retirement package, and a federal retiree who takes a second-career job or consulting work can find themselves losing most or all of it to an earnings test that nobody explained clearly at retirement.

This piece walks through the SRS mechanics, the earnings test formula, the year-of-retirement rule that many federal retirees miss, and planning alternatives that do not trigger the reduction.

What the FERS Supplement actually is

The Supplement is paid by the Office of Personnel Management to eligible FERS retirees who separate before age 62. It is designed to replace the Social Security benefit the retiree would have received if they could have started Social Security at their Minimum Retirement Age. Because Social Security cannot be claimed before 62, OPM bridges the gap internally.

The Supplement is available to FERS retirees who separate with:

• Immediate retirement at MRA with 30 or more years of service (MRA+30)
• Immediate retirement at age 60 with 20 or more years of service
• Discretionary early retirement under VERA (age 50 with 20 years, or any age with 25 years)
• Discretionary early retirement under law enforcement, firefighter, air traffic controller, or other special-category rules (which can start the Supplement earlier than MRA)

The Supplement is not paid to retirees who defer their FERS annuity. It is not paid to CSRS-only retirees. It is not paid under postponed retirement unless the retiree had immediate eligibility. These eligibility rules are important and often missed. OPM’s CSRS/FERS Handbook Chapter 51 is the primary source.

The SRS calculation

The Supplement amount is calculated roughly as:

SRS monthly amount = (Social Security age-62 estimated PIA) × (years of civilian FERS service / 40)

So a retiree with 30 years of FERS service whose projected Social Security age-62 benefit would be $2,000 per month would receive a Supplement of:

$2,000 × (30 / 40) = $1,500 per month = $18,000 per year

This is the Supplement before the earnings test. It is paid monthly along with the FERS basic annuity. It is subject to federal income tax. It is not subject to FICA tax because it is a pension, not wages. It is not adjusted for inflation (the basic annuity gets a COLA after age 62; the Supplement does not).

The Supplement ends permanently at age 62. Whether or not the retiree files for Social Security at 62 is irrelevant. The Supplement stops regardless.

The earnings test

Here is the part that catches retirees by surprise. The SRS is subject to an earnings test that mirrors the Social Security earnings test. If the retiree earns wages or self-employment income above the annual exempt amount, the Supplement is reduced by $1 for every $2 earned above the limit.

The Social Security earnings test exempt amount is set annually by SSA and adjusted for wage growth. For 2026, the pre-FRA exempt amount is approximately $23,400 (readers should verify the current year’s figure on the SSA planner page). OPM applies the same limit to the SRS.

The mechanics of the reduction are based on the prior year’s earnings. A retiree who earns $60,000 in W-2 consulting income in 2026 would complete OPM Form RI 92-22 (Annuity Supplement Earnings Report) in early 2027, and the Supplement reduction would begin in mid-2027 based on the 2026 earnings. The reduction formula for the example:

Excess earnings = $60,000 − $23,400 = $36,600 Annual reduction = $36,600 × (1/2) = $18,300

If the unreduced Supplement was $18,000 per year, the reduction wipes it out entirely. In the following year the retiree would continue to receive zero Supplement as long as earnings stay elevated, until age 62 ends the Supplement regardless.

The first-year rule

The earnings-test rule has a wrinkle that many retirees miss. In the year the retiree separates from federal service, OPM applies a monthly rule rather than an annual one. Earnings received before the separation date do not count against the test. Earnings after the separation date are evaluated on a monthly basis.

Concretely, a retiree who separates from federal service on August 31 and earns $80,000 of pre-separation salary plus $20,000 of post-separation consulting income would have only the $20,000 counted against the test. And for the four remaining months of the year (September through December), the monthly exempt amount (approximately one-twelfth of the annual limit, roughly $1,950 for 2026) applies to each month separately.

If the retiree earns $5,000 per month in consulting income in each of the four post-separation months, the monthly test compares each month’s $5,000 against the $1,950 monthly limit. Each month’s Supplement would be reduced by half of the excess ($3,050 × 0.50 = $1,525 reduction per month).

Starting January 1 of the following year, the annual rule applies and the pre-retirement salary no longer counts. Many retirees plan second-career earnings assuming the annual rule applies from day one. The monthly rule in the first year can be favorable or unfavorable depending on the earnings timing.

A worked example

Consider a fictional GS-14 at NASA Langley, Step 10, retiring at age 58 with 32 years of FERS service on August 31, 2026. Base salary with locality is approximately $152,000. The retiree has a consulting opportunity that will pay $60,000 per year in W-2 wages starting September 1, 2026.

Supplement calculation: Social Security age-62 PIA estimate = $2,100/month Supplement = $2,100 × (32/40) = $1,680/month = $20,160/year before test

2026 (first year, monthly rule): Pre-separation earnings ($152,000 × 8/12 = $101,333) do not count against the test. Post-separation W-2 from September through December = $20,000 ($5,000/month × 4 months).

Each month’s test: Excess = $5,000 − $1,950 = $3,050 Monthly reduction = $3,050 / 2 = $1,525

The Supplement for September through December would be reduced by $1,525 per month, leaving approximately $155 per month of Supplement during the earnings period.

2027 (second year, annual rule): Full-year W-2 = $60,000 Excess = $60,000 − $23,400 (using 2026 figure; SSA will adjust) = $36,600 Annual reduction = $36,600 × 0.50 = $18,300

Reduction of $18,300 against an unreduced Supplement of $20,160 leaves approximately $1,860 per year of residual Supplement, or about $155 per month.

2028-2029: If the retiree maintains the $60,000 job, the Supplement continues to run at approximately $155 per month. The Supplement ends at age 62, which would arrive during 2030 for this retiree.

The unreduced Supplement would have paid roughly $80,640 over four years. The actual after-test receipt, assuming the consulting job continues, would be closer to $7,500. The retiree is losing roughly $73,000 of Supplement across four years, in exchange for $240,000 of W-2 income. This is still a rational trade in cash-flow terms, but the retiree needs to go in with eyes open.

SS earnings test vs SRS earnings test: a quick comparison

The two tests share the exempt amount and the $1-for-$2 reduction formula, but differ on several points:

Feature	SS Earnings Test	SRS Earnings Test
Administrator	Social Security Administration	Office of Personnel Management
Exempt amount (2026)	~$23,400	~$23,400 (same figure)
Reduction	$1 per $2 over	$1 per $2 over
What counts	W-2 and self-employment	W-2 and self-employment
What does not count	Pensions, TSP withdrawals, Roth conversions, rental income, investment income	Same exclusions apply
First-year monthly rule	Applies	Applies
Full Retirement Age elimination	Test ends at FRA	Supplement ends at 62 regardless
Deferred retirement	Not applicable	Supplement not paid at all

The critical distinction: the SS earnings test ends when the retiree reaches their Full Retirement Age (67 for most current retirees). The SRS does not wait that long. It ends at age 62. So the test is a four to six year issue, not a multi-decade one.

Income that does not trigger the test

Several categories of income are not subject to the earnings test because they are not wages or self-employment income:

• TSP withdrawals. Roth or traditional TSP distributions are pension distributions, not wages.
• IRA distributions. Same logic.
• Roth conversions. Moving money from a traditional IRA or TSP to a Roth is a taxable event but it is not wages.
• Rental income. Passive real-estate income does not count, provided the retiree is not operating as a real-estate professional with material participation.
• Investment income. Dividends, interest, and capital gains are not earned income.
• FERS basic annuity. This is a pension, not wages.
• Social Security benefits. These are also pensions under the earnings-test rules, though of course SS itself does not start until at least 62.

A retiree who wants to supplement cash flow during the 56-to-62 window without losing the Supplement has several options. Roth conversions during this period are particularly attractive for federal retirees because the typical FERS retiree is in a relatively low tax bracket in the first few years of retirement, before Social Security and Required Minimum Distributions push marginal rates up. The conversions use taxable room without triggering the earnings test.

Coordinating with TSP, FEHB, and Social Security at 62

The 56-to-62 window is a short planning window with several moving parts.

TSP. Age 55 plus separation from service means the retiree can take TSP withdrawals without the 10% early-withdrawal penalty. This is the TSP version of the rule of 55. TSP withdrawals during this window can provide income without touching the earnings test.

FEHB. Federal Employees Health Benefits coverage continues into retirement if the retiree was enrolled for the five years immediately prior to retirement. OPM’s FEHB retirement page covers the eligibility rules. FEHB premiums continue at the full share in retirement (the agency subsidy continues for eligible retirees).

Social Security at 62. At age 62, the SRS ends. The retiree can file for Social Security, which then becomes subject to the SSA earnings test until FRA. For most retirees, delaying Social Security past 62 increases the eventual benefit by roughly 7-8% per year of delay, so the decision of when to file is not automatic.

A typical coordinated plan for MRA+30 retirees with post-retirement earnings would be: draw the FERS basic annuity and a partial SRS (if earnings-test math leaves any), supplement cash flow with TSP withdrawals that don’t count against the test, use Roth conversions to fill low-tax-bracket room, and wait on Social Security until 67 or 70 to lock in the higher benefit.

When SRS is not a factor

The Supplement does not apply to every federal retirement. Two cases where it is irrelevant:

Deferred retirement. A federal employee who separates before MRA but does not take an immediate annuity (typically because they don’t have enough service for immediate retirement) can leave their contributions in and draw a deferred annuity later. Deferred retirees receive no Supplement, ever.

Postponed retirement without immediate eligibility. MRA+10 retirees who postpone to avoid the age reduction can receive a Supplement only if they would have been eligible for an immediate, unreduced annuity, which most MRA+10 retirees are not.

What we observe

We observe that the earnings test catches federal retirees by surprise more often than it should. The Supplement looks like a guaranteed bridge payment in the benefits literature but in practice it is a conditional benefit that a second-career W-2 job can nearly eliminate. We believe federal retirees considering post-retirement work should model the Supplement reduction alongside the gross W-2 offer, not after the fact.

For federal retirees thinking about the larger retirement picture, we also recommend reviewing the FERS Supplement overview, our TSP G Fund vs C Fund note, and the military buyback for federal employees piece for retirees who had prior military service.

Credential boundary and required disclosures

Ferrante Capital LLC is a Registered Investment Adviser and is not affiliated with, endorsed by, or sponsored by the U.S. Government, the Office of Personnel Management, the Social Security Administration, the Thrift Savings Plan, NASA, the Department of the Navy, NAVSEA, NAVFAC, the Department of Veterans Affairs, or any federal agency. Ferrante Capital LLC is not an OPM-accredited federal benefits counselor. We do not file federal retirement paperwork or advise on federal benefits matters in a fiduciary capacity. Federal employees should consult their agency’s benefits office and review official OPM publications for questions about eligibility, calculations, and filing.

Federal employees remain subject to 5 CFR 2635 and agency-specific ethics rules regarding gifts and outside business relationships. This article is educational content available to the public and does not constitute a prohibited gift.

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