SCD Retirement: Eligibility, Annuity, and Buyback Service

Your retirement service computation date is the single date the federal government uses to count how many years of creditable service you have toward a federal pension. Under FERS, that count decides two things at once: whether you can retire, and how large your monthly annuity will be. A date that’s off by a few months can delay your retirement or shrink your check for life, so it’s worth understanding what goes into it and how to check yours.

Retirement SCD vs. Leave SCD

The federal government tracks several service computation dates, and they don’t all mean the same thing. The Leave SCD sets how quickly you earn annual leave: 4 hours per pay period under 3 years, 6 hours from 3 to 15 years, and 8 hours at 15 years and above.1U.S. Office of Personnel Management. Annual Leave A separate RIF SCD governs your standing in a reduction in force. The Retirement SCD counts only the service that qualifies under FERS (or the older CSRS) for pension eligibility and computation.

These dates diverge because they credit different kinds of service. A stretch of temporary employment might count toward leave accrual but not toward your pension unless you pay a deposit. Military time may appear on your Leave SCD automatically while staying off your Retirement SCD until you buy it back. One practical consequence: Block 31 on your SF-50 usually shows the Leave SCD, not the Retirement SCD.2U.S. Government Publishing Office. Guide to Understanding Your Notification of Personnel Action Form, SF-50 Confirm the retirement figure through your agency’s HR office or a formal retirement estimate rather than reading it off a personnel action.

What Your Retirement SCD Decides About When You Can Retire

Your Retirement SCD, paired with your age, determines which FERS retirement pathway you qualify for. There are four main routes to an immediate, unreduced annuity:3U.S. Office of Personnel Management. FERS Information – Eligibility

  • Age 62 with at least 5 years of civilian service.
  • Age 60 with 20 years of service.
  • Minimum Retirement Age (MRA) with 30 years of service.
  • MRA with 10 years of service, with a permanent 5% reduction for each year you’re under 62.

Your MRA depends on when you were born. For anyone born before 1948 it’s 55. For births in 1948 through 1952 it rises in two-month steps from 55 and 2 months to 55 and 10 months. For births from 1953 through 1964 the MRA is 56, then climbs again in two-month increments for births in 1965 through 1969. Anyone born in 1970 or later has an MRA of 57.3U.S. Office of Personnel Management. FERS Information – Eligibility

The MRA+10 route deserves attention because the penalty is easy to underestimate. If you retire at MRA with at least 10 but fewer than 30 years, your annuity is cut by 5% for every year you’re under 62, and the reduction is permanent.4U.S. Office of Personnel Management. What Is a Minimum Retirement Age (MRA) Plus 10 Annuity Under the Federal Employees Retirement System (FERS)? A worker retiring at 57 under MRA+10 takes a 25% haircut for life. You can postpone the annuity to shrink or erase the reduction, but that means no pension income in the meantime.

If your Retirement SCD is wrong by enough to push you across a threshold — dropping you from 30 years to 29 years and 10 months, for example — you may miss an unreduced retirement entirely and land in MRA+10 territory instead.

What Your Retirement SCD Decides About Your Annuity Amount

The dollar impact comes from the FERS annuity formula. For most retirees, the basic annuity equals 1% of your “high-3” average salary times your total years and months of creditable service. Retire at 62 or later with at least 20 years, and that multiplier rises to 1.1%.5Office of the Law Revision Counsel. 5 USC 8415 – Computation of Basic Annuity

Your high-3 is the average of your highest-paid 36 consecutive months of basic pay, which for most employees means the last three years on the job. The service side of the formula comes straight from your Retirement SCD. Miss a year of credit and you lose 1% of your high-3 every year for the rest of your life. On a $90,000 high-3, that’s $900 annually, or roughly $22,500 across a 25-year retirement.6U.S. Office of Personnel Management. FERS Information – Computation

What Service Counts Toward Your Retirement SCD

Creditable service includes most permanent civilian federal employment where FERS or CSRS deductions were withheld from your pay. If the deduction appeared on your pay stubs, that time counts automatically.7Office of the Law Revision Counsel. 5 USC 8411 – Creditable Service Part-time service counts at full calendar length for eligibility but is prorated in the annuity formula.

Beyond regular civilian work, several other categories can be added:

  • Active-duty military service, creditable with a deposit. Military service before 1957 is credited without a deposit.
  • Civilian service without retirement deductions, such as temporary appointments, if you pay a deposit — but only for service performed before 1989.
  • Non-Appropriated Fund employment at Department of Defense or Coast Guard instrumentalities, if you elect to have it counted.7Office of the Law Revision Counsel. 5 USC 8411 – Creditable Service
  • Peace Corps and VISTA volunteer service, creditable with a deposit.8Peace Corps. Federal Retirement Credit for Returned Volunteers

Leave without pay is where an SCD often slips quietly. Up to six months of LWOP or other nonpay status in a calendar year is creditable. Anything beyond six months in a single calendar year is not, and your Retirement SCD moves forward by the excess.9U.S. Office of Personnel Management. Effect of Extended Leave Without Pay (LWOP) (or Other Nonpay Status) on Federal Benefits and Programs Nine months of LWOP in 2023 pushes your SCD out by three months. LWOP taken to perform military service or to receive workers’ compensation is fully creditable regardless of length.10Office of the Law Revision Counsel. 5 USC 8332 – Creditable Service

Buying Back Prior Service

Military service and pre-1989 non-deduction civilian service don’t move your Retirement SCD by themselves. You have to make a deposit into the retirement fund, and the amounts differ by type:

FERS employees can pay the military deposit interest-free if they finish within two years of their first federal civilian appointment. After that, interest accrues and compounds each year.13Office of the Law Revision Counsel. 5 USC 8422 – Deductions From Pay; Contributions for Military Service OPM sets the rate each year; for 2026 it’s 4.25%. A veteran who waits a decade to buy back military time can easily see the balance double or triple, so starting the paperwork early is one of the highest-return moves available.

Civilian deposits for pre-1989 non-deduction service work the same way: 1.3% base amount, plus interest compounding from the midpoint of the service period.14U.S. Office of Personnel Management. FERS Information – Service Credit If you took a refund of retirement contributions during a break in service, buying that time back is called a redeposit and is calculated from the original deduction amount rather than the lower deposit rate.

What Else a Wrong SCD Can Cost You

The Retirement SCD reaches beyond your pension check. Continuing Federal Employees Health Benefits (FEHB) coverage in retirement requires that you retire on an immediate annuity and have been continuously enrolled in FEHB for the five years immediately before your annuity starts, or since your first opportunity if your career was shorter.15U.S. Office of Personnel Management. Annuitants – FEHB Reference Federal Employees’ Group Life Insurance (FEGLI) has a parallel rule: immediate annuity, five years of coverage (or the full period of eligibility if shorter), and no conversion to an individual policy.16U.S. Office of Personnel Management. What Is the Five-Year/All Opportunity Rule for Continuing Life Insurance Into Retirement? If a flawed SCD keeps you from qualifying for an immediate annuity, both benefits can vanish along with the pension.

Special provision employees — federal law enforcement officers, firefighters, nuclear materials couriers, customs and border protection officers, and air traffic controllers — face additional exposure. They can retire unreduced at age 50 with 20 years of covered service or at any age with 25 years of covered service, and only time in the covered position counts toward those minimums.17Office of the Law Revision Counsel. 5 USC 8412 – Immediate Retirement These positions also carry mandatory separation ages: 56 for air traffic controllers (with limited exemptions to 61), and 57 for the others, extendable to 60 by the agency head when the public interest requires it.18Office of the Law Revision Counsel. 5 USC 8425 – Mandatory Separation An SCD error in one of these jobs can push mandatory separation ahead of the special annuity threshold, which is far harder to fix on the way out than in advance.

An SCD error can also matter during a reduction in force. Early optional retirement authority opens at age 50 with 20 years, or any age with 25 years, at least 5 of them civilian, but only when OPM has authorized the offer.19U.S. Office of Personnel Management. FERS Information – Types of Retirement Being credited with a few months less than your true service can be the difference between an immediate annuity and an involuntary separation with no pension until age 62.

How to Verify and Correct Your Retirement SCD

Every correction starts with paper. Your SF-50 Notification of Personnel Action forms are the backbone of your service history, one for every hire, promotion, reassignment, pay change, and separation. Most SF-50s live in your electronic Official Personnel Folder (eOPF). Pull every one you can, especially from the early part of your career, because missing SF-50s for short-term or temporary appointments are the single most common source of gaps.

If you have prior military service, you’ll also need your DD-214 showing your active-duty dates and the character of your discharge. Any records of deposits or redeposits you’ve already paid should be in the file as well. If they aren’t, follow up right away.

When you find an error, submit a correction request to your agency’s Human Resources office with the supporting documents. HR runs an administrative audit comparing your evidence to the electronic record. Depending on the complexity and age of the records, the process usually takes 30 to 90 days. If the audit confirms the mistake, the agency issues a corrected SF-50 with the new Retirement SCD, and the corrected information is documented on your Certified Summary of Federal Service (SF-3107-1 for FERS, SF-2801-1 for CSRS). That summary is the verified record OPM uses to process your retirement application.

Don’t wait until you file retirement paperwork to start. Agencies work through corrections much faster when they aren’t simultaneously finalizing a separation, and old records only get harder to track down the longer you wait.