6(c) Retirees: The FERS Supplement Earnings Test Exemption

Last Updated: July 12, 2026 Reading Time: 8 min

A federal law enforcement officer who retires at 49 and takes a $60,000 second career keeps every dollar of the FERS supplement. A regular FERS retiree with the same job loses all of it. The difference is one line in the regulations: the 6(c) FERS supplement earnings test exemption.

If you retired under the special provisions for law enforcement officers, firefighters, air traffic controllers, or CBP Officers, the earnings test does not touch you until you reach your minimum retirement age. That gap, often 7 or 8 years, is worth six figures. Here's how it works, what it's worth, and the three dates that end it.

How the FERS Supplement Earnings Test Normally Works

The FERS Special Retirement Supplement bridges the gap between retirement and age 62, when Social Security eligibility begins. OPM pays it from federal appropriations, and the formula is simple: your years of FERS service divided by 40, multiplied by your estimated Social Security benefit at 62.

For most retirees, the supplement comes with a catch borrowed from Social Security: the earnings test under 5 U.S.C. 8421a. In 2026, wages or self-employment income above $24,480 reduce next year's supplement by $1 for every $2 over the limit.

The math gets ugly fast. A retiree earning $50,000 in a post-retirement job is $25,520 over the limit. That's a $12,760 annual reduction, enough to erase most supplements entirely.

OPM enforces this through the annual RI 92-22 earnings survey, mailed each spring to more than 77,000 supplement recipients. We covered the survey deadline and the July 1 reduction cycle in our FERS supplement earnings limit guide.

The 6(c) Exemption: No Earnings Test Until Your MRA

Here's the sentence that changes retirement planning for every federal cop, firefighter, and controller. Under 5 CFR 842.505, the earnings test does not apply to employees who retired under the special provisions until they reach their minimum retirement age.

Your MRA depends on your birth year:

Birth Year MRA
Before 1948 55
1953 to 1964 56
1970 or later 57

A special agent who retires at 49 with 25 years of covered service collects the full supplement for 8 years while earning any amount at all. Corporate security director at $150,000? Full supplement. Consulting practice? Full supplement. The test simply doesn't exist for you yet.

This isn't a loophole. Congress built it in because 6(c) positions carry mandatory retirement at 57. The government forces you out early, so it lets you rebuild a career without penalty.

Who Counts as 6(c)

The exemption follows your retirement category, not your job title. It covers employees who retired under the special provisions at 5 U.S.C. 8412(d):

  • Law enforcement officers (criminal investigators, special agents, correctional officers in primary or properly transferred secondary positions)
  • Firefighters in covered federal positions
  • Air traffic controllers
  • CBP Officers hired into or covered by the separate CBPO track created in 2007

Eligibility to retire under these provisions is age 50 with 20 years of covered service, or any age with 25 years. The pension formula is richer too: 1.7% of high-3 for the first 20 years instead of 1.0%. Our LEO Special Retirement Calculator runs the full 6(c) math, including the supplement estimate.

One warning: your SF-50, Block 30, has to show the right retirement code. Agencies decide coverage, OPM rarely overrides them, and appeals go to the MSPB with a clock that starts at the coverage decision, not at retirement. If you believe you're covered and your paperwork says otherwise, fix it while you're still employed.

The Money Math: An 8-Year Window Worth Six Figures

Take a border patrol agent, born in 1977, who retires at 49 with 25 years of covered service. Her Social Security estimate at 62 is $2,000 a month. Her supplement:

25 ÷ 40 × $2,000 = $1,250 a month, or $15,000 a year

She takes a $60,000 security consulting job the week after retirement. Here's what happens to her supplement at each stage:

Age Earnings Test Applies? Supplement Paid
49 to 56 $60,000/yr No, exempt until MRA $15,000/yr, in full
57 to 61 $60,000/yr Yes $0
62 Any Supplement ends $0

From 49 through 56, the exemption protects $120,000 in supplement payments she'd otherwise lose.

At 57, the picture flips. Her excess earnings are $60,000 minus $24,480, or $35,520. The reduction is half of that: $17,760, more than her entire $15,000 supplement. It goes to zero.

The lesson isn't that the exemption is a trick. It's that the exemption is a window. Plan your highest-earning second-career years to land inside it.

What Changes at Your MRA, and Again at 62

Three dates control the entire timeline:

Your MRA (55 to 57). The earnings test switches on. From here, the standard rules apply: OPM's annual survey, the $24,480 limit, the $1-for-$2 reduction, and the statutory lag that makes reductions effective the July after the excess-earnings year. In the year you reach MRA, only earnings after that date count toward the test.

Age 62. The supplement ends automatically the month you turn 62. This has nothing to do with whether you claim Social Security. Many 6(c) retirees hit a real income cliff here, which we break down in the supplement-to-Social-Security timing guide.

Your Social Security claiming date. Here's the good news your second career bought you: the earnings test never touches your actual Social Security benefit. Those $60,000 years get added to your earnings record and can raise your eventual check. And under the 2025 Social Security Fairness Act, WEP and GPO are repealed, so mixed-service retirees no longer face those offsets either.

Three Traps That Catch 6(c) Retirees

Trap 1: Assuming the exemption is permanent. It ends at MRA. A retiree who builds a lifestyle around pension plus supplement plus salary sees the supplement vanish at 57 if the salary continues. Budget for the step-down.

Trap 2: Ignoring the RI 92-22 survey after MRA. Once the test applies, OPM's earnings survey applies too. Skipping it can suspend your entire supplement and trigger debt collection. The form typically arrives in April or May with an early-June deadline.

Trap 3: The wrong retirement code. Secondary-position transfers are the classic failure: move from a covered primary position to an administrative one with a break of more than 3 days, and coverage for that period is permanently lost. Verify Block 30 on every SF-50 you receive.

Calculate Your 6(c) Retirement Income

The supplement is only one layer of a special-provisions retirement. Use our free LEO Special Retirement Calculator to run the 1.7% enhanced pension, your eligibility dates, and the supplement estimate in one pass. Then stress-test the full income picture with the FERS Retirement Calculator.

Frequently Asked Questions

Does the FERS supplement earnings test apply to a LEO who retires at 50?

Not right away. Under 5 CFR 842.505(b), law enforcement officers, firefighters, air traffic controllers, and CBP Officers who retire under the special provisions are exempt from the earnings test until they reach their minimum retirement age, typically 57. Until then, they can earn any amount without losing a dollar of the supplement.

When does the earnings test start for a special-provisions retiree?

The month you reach your MRA (55 to 57 depending on birth year, 57 for anyone born in 1970 or later). From that point until the supplement ends at 62, earnings above the annual limit ($24,480 in 2026) reduce the supplement by $1 for every $2 over.

Does a second career reduce my actual Social Security benefit later?

No. The FERS supplement earnings test has zero effect on your Social Security calculation. Your AIME and PIA are computed from your earnings record when you claim, and extra earnings can only raise them, never lower them.

Is the FERS supplement still safe for 6(c) retirees after the 2025 budget law?

Yes, as of mid-2026. The One Big Beautiful Bill Act preserved the supplement for employees subject to mandatory retirement, which covers LEO, firefighter, and ATC retirees. Proposals to eliminate the supplement for other new retirees have not become law.

What happens to the supplement at age 62?

It ends automatically the month you turn 62, whether or not you claim Social Security then. That is also when your real claiming decision starts: take Social Security at 62 at a reduced rate, or bridge the gap with TSP and salary and claim later.

Sources: 5 U.S.C. 8421a, 5 CFR 842.505, 5 U.S.C. 8412(d), OPM CSRS/FERS Handbook Chapter 51, SSA Social Security Fairness Act, CRS Report IF12996 (2025).