Federal Retirement Timeline: Social Security Milestones from MRA to Age 70

Federal retirement isn't a single event — it's a sequence of age-based triggers spread across 15+ years, each one unlocking or terminating a different income stream. Miss a milestone and you could leave money unclaimed, trigger a penalty, or lose health coverage. The problem is that no single government agency gives you the full picture: OPM handles your pension, the SSA handles Social Security, CMS handles Medicare, and the TSP handles your savings. Each runs on its own calendar.

Here's the chronological map of what happens when, and what each milestone requires you to do.

MRA (Age 55–57): FERS Pension Access

Your Minimum Retirement Age depends on your birth year — 55 for those born before 1948, scaling up to 57 for anyone born in 1970 or later. Most federal employees planning retirement now have an MRA of 56 or 57.

At MRA with 30 years of creditable service, you qualify for an immediate, unreduced FERS annuity. You also qualify for the FERS Special Retirement Supplement, which bridges the gap between your pension start and Social Security eligibility at 62.

At MRA with only 10 years of service, you can take a reduced annuity under the MRA+10 provision, but you'll face a 5% per year reduction for every year under age 62, and you won't receive the FERS supplement.

Action required: Submit your retirement application through your agency's HR office or OPM's Online Retirement Application (ORA) at least 90 days before your planned separation date. Verify your service computation date, high-3 salary average, and earnings record before filing.

Age 59½: TSP Penalty-Free Withdrawals (If Still Working)

If you're still a federal employee at 59½, you can take age-based in-service withdrawals from your TSP without the 10% early withdrawal penalty. This is separate from the age-55 separation rule (below) — the 59½ threshold applies while you're still employed.

Age 55: TSP Separation Rule

If you separate from federal service in the calendar year you turn 55 or later, you can withdraw from your TSP without the 10% early withdrawal penalty. For law enforcement officers, firefighters, and air traffic controllers, this drops to age 50.

This rule is specific to employer plans like the TSP — it doesn't apply to IRAs, which use the 59½ threshold. If you roll your TSP into an IRA before age 59½, you lose the age-55 exception.

Age 60: Unreduced Pension With 20 Years

At 60 with 20 years of service, you qualify for an immediate, unreduced FERS annuity — no MRA requirement, no age reduction. You also get the FERS supplement if you're retiring on an immediate, unreduced annuity. This is the second voluntary retirement eligibility point after MRA+30.

Age 62: The Critical Decision Node

More things happen at 62 than at any other age in the federal retirement sequence:

Social Security becomes available. You can file for early retirement benefits, but with a full retirement age of 67, claiming at 62 means a permanent 30% reduction in your monthly benefit. A PIA of $2,400 drops to $1,680 for life.

The FERS supplement ends. OPM stops the supplement payment at the end of the month before you turn 62, regardless of whether you claim Social Security. The bridge disappears whether you're ready or not.

The FERS 1.1% multiplier kicks in. If you retire at 62 or later with at least 20 years of service, your annuity is calculated at 1.1% × high-3 × years of service instead of the standard 1% multiplier. For someone with 30 years and a $95,000 high-3, the difference between 1.0% and 1.1% is $2,850/year for life.

Pension eligibility with just 5 years. At 62, you can retire with as few as five years of creditable service and receive an immediate annuity.

Action required: Decide whether to claim Social Security now or delay. If you retired earlier and were receiving the FERS supplement, plan for the income drop. Review your claiming age options with actual numbers.

Age 63: Super Catch-Up Window Opens

Under SECURE 2.0, employees ages 60–63 can contribute up to $11,250 in catch-up contributions to the TSP in 2026, compared to $8,000 for ages 50–59 and 64+. If your prior-year FICA wages exceeded $150,000, these catch-up contributions must go into the Roth TSP.

This window is narrow — it closes at 64. If you're still working in federal service at 60–63, this is the highest annual TSP contribution opportunity available.

Age 65: Medicare Enrollment

At 65, you become eligible for Medicare. For standard FERS/CSRS retirees who kept FEHB coverage, Medicare Part B enrollment is technically optional — FEHB continues as primary coverage. But most federal retirees enroll in Part B because it coordinates with FEHB to cover what one plan doesn't, reducing out-of-pocket costs.

For postal retirees under PSHB: Medicare Part B enrollment is mandatory to maintain PSHB health coverage, unless you qualify for one of the four statutory exemptions (retired before January 1, 2025; active employee age 64+ as of January 1, 2025; permanent overseas residence; VA/IHS eligibility). Failure to enroll means permanent loss of PSHB coverage.

The 2026 Medicare Part B premium is $202.90/month, deducted from your Social Security benefit. If you haven't claimed Social Security yet, you'll pay the premium directly to CMS.

Action required: Enroll during your Initial Enrollment Period (7 months around your 65th birthday). Missing the window triggers a 10% per year late enrollment penalty that lasts for life.

Age 67: Full Retirement Age

At 67, three things change:

You receive 100% of your PIA. If you've been delaying Social Security, this is the age where your benefit equals your full Primary Insurance Amount — no reduction, no delayed credits yet.

The earnings test ends. Before FRA, earning more than $24,480 in 2026 reduces your Social Security benefit by $1 for every $2 over the limit. At 67, you can earn any amount without reduction.

FERS COLAs apply regardless. FERS retirees under 62 generally don't receive COLAs on their annuity (with exceptions for disability and special provisions). By 67, you've been receiving pension COLAs for at least five years, and Social Security COLAs compound on top.

Age 70: Maximum Social Security

Delayed retirement credits stop accruing at 70. With an FRA of 67, waiting until 70 adds a permanent 24% boost to your PIA. There's no benefit to delaying past 70 — the credits simply stop.

At 70, your Social Security benefit is at its lifetime maximum. For a PIA of $2,400, that's $2,976/month before COLAs.

Action required: If you've been delaying, file for Social Security no later than 70. You can file up to four months before your 70th birthday to ensure payments start on time.

Age 73–75: TSP Required Minimum Distributions

Under SECURE 2.0, you must begin taking required minimum distributions from your traditional (pre-tax) TSP balance:

• Born 1951–1959: RMDs begin at 73
• Born 1960 or later: RMDs begin at 75

Roth TSP balances are exempt from RMDs starting in 2024 — no lifetime distributions required. This is a significant planning advantage over traditional TSP, particularly for retirees who don't need the income but want to avoid forced taxable distributions.

Missing an RMD triggers a 25% penalty on the amount you should have withdrawn (reduced from 50% under SECURE 2.0).

Putting the Timeline Together

The federal retirement milestone map runs from MRA to 75+, with the heaviest concentration of decisions between 55 and 67. The Social Security for Federal Employees guide organizes every milestone into a single verification checklist — pension, Social Security, TSP, Medicare, and PSHB — so nothing falls through the cracks between agencies.

See more United States guides →