For federal employees who retire before age 62, the FERS Special Retirement Supplement can provide meaningful monthly income while you wait for Social Security to kick in. But there is a rule attached to the FERS Supplement that catches many retirees off guard, and if you plan to work after leaving federal service, it could significantly change your retirement income math.
How the FERS Supplement Earnings Test Works
The FERS Supplement is subject to the same earnings test applied to Social Security recipients who collect benefits before their Full Retirement Age. For 2026, the exempt amount is $24,480. If your wages or self-employment income exceed that threshold, your supplement is reduced by $1 for every $2 you earn above the limit.
The keyword is earned. TSP withdrawals, investment income, rental income, and your FERS pension do not count toward the earnings test. Only wages from a job or net self-employment income are included.
The reduction does not happen immediately. If you exceed the earnings limit in 2026, the reduction takes effect in July 2027 after OPM reviews your earnings from the prior year. But the reduction can be substantial. A retiree earning $44,480 in a given year is $20,000 over the limit and would see their supplement reduced by $10,000 for the following year. Earn enough, and the supplement disappears entirely.
The Same Rule Applies to Social Security
What many federal employees do not realize is that if they claim Social Security before their Full Retirement Age, the same type of earnings test applies there as well. Earned income above the annual threshold reduces your Social Security benefit by $1 for every $2 over the limit, just like the supplement.
This means the earnings test is not just a supplement problem; it follows you. Once the supplement ends at 62 and you begin drawing Social Security before your Full Retirement Age, the same earnings test applies to those benefits as well. A retiree who plans to keep working through their early 60s needs to account for that in both phases of their retirement income plan.
The Strategic Decision
This creates a genuine planning question for early retirees who want to keep working. Is it better to take the supplement and risk having it reduced, or structure your work income carefully to stay below the threshold? And on the Social Security side, is it better to delay claiming past Full Retirement Age to avoid the earnings test entirely and lock in a permanently higher monthly benefit?
The answers depend on how long you plan to work, how much you expect to earn, and how your overall retirement income picture is structured. Delaying Social Security increases your monthly benefit by approximately 8% for each year you wait past Full Retirement Age. Whether that trade-off is worth it compared to claiming early and managing around the earnings test is a calculation worth running before you retire.
A Federal Retirement Consultant (FRC®) can help you think through the timing of your supplement and Social Security claiming strategy as part of your overall retirement income plan. Schedule your complimentary benefits review today.
