Military Deposit Paid in Full Letter: How to Get It and Why It Matters

What the Paid-in-Full Letter Is

When your military service deposit balance reaches zero — whether through a lump sum on Pay.gov, the final payroll deduction, or the last installment check — your civilian payroll office issues a formal "Paid in Full" confirmation letter. This document is your legal proof that the deposit is complete and that OPM should credit your military years in the final annuity calculation.

The letter typically comes from whichever entity processes your agency's payroll: DFAS Civilian Pay, the National Finance Center (NFC), or the Interior Business Center (IBC). It states the total amount paid, the date the balance was satisfied, and the service periods covered.

The Gap Between Payment and Proof

The most dangerous assumption in the buyback process is that making the final payment automatically triggers everything downstream. It does not.

Payroll offices generate the paid-in-full letter on their own processing timeline — which can be 30 to 60 days after the last payment posts. During that window, your payment has cleared but no official confirmation exists. If you separate from federal service during this gap, OPM may not have the documentation to credit your military years.

Pay.gov transactions can take up to four business days to settle in the payroll system. Biweekly deductions don't post until the pay period closes and the payroll cycle runs. The paid-in-full letter won't generate until the system shows a zero balance.

Why You Must Hand-Deliver It to HR

Here is the trap most people fall into: the civilian payroll office that issues the paid-in-full letter does not automatically send a copy to your agency's HR benefits specialist. The two offices operate independently, often in different cities or under different organizational structures.

If your HR specialist never receives proof that the deposit is complete, they will package your retirement application without certifying the military service credit. OPM then processes the application based on civilian service only — your pension comes out lower, and correcting the record requires months of back-and-forth correspondence while you're already on interim pay.

After you receive the paid-in-full letter:

1. Make digital scans and physical copies
2. Deliver a copy directly to your HR benefits specialist — email and hand-deliver if possible
3. Ask HR to confirm in writing that your Service Computation Date for Retirement (SCD-Retirement) has been updated
4. Verify that the certified SF 3108 or SF 2803, along with the paid-in-full letter, has been uploaded to your eOPF

Checking Block 20 of Your LES

Your Leave and Earnings Statement (LES) includes a Block 20 field that shows retirement deduction status, including any active service deposit balances. After your final payment posts, Block 20 should reflect a zero balance for the military deposit.

Check your LES in the pay period following your last payment. If the balance still shows as outstanding, contact your payroll office immediately — a posting error at this stage can delay the paid-in-full letter and everything that depends on it.

The eOPF Verification

OPM's transition to the Online Retirement Application and the Electronic Individual Retirement Record system means your retirement package is assembled digitally. When your agency HR submits your package to OPM, the eIRR pulls records from your electronic Official Personnel Folder (eOPF).

If the paid-in-full confirmation and the certified deposit form aren't uploaded to the eOPF, they won't be in the digital package OPM receives. Log into your eOPF portal and verify both documents appear before you submit your retirement application through ORA.

What to Do If the Letter Never Arrives

If 60 days have passed since your final payment and you haven't received the paid-in-full letter, contact your payroll provider directly:

• NFC Help Desk: 1-855-632-4468
• DFAS Civilian Pay: 1-800-729-3277
• IBC: Contact through your agency's shared services portal

Have your employee ID and the date of your final payment ready. Ask specifically for the paid-in-full confirmation letter for your military service deposit — not a general account statement.

The Military Buyback Guide includes a payment verification tracker with the exact checkpoints, contact numbers, and escalation steps for each payroll provider, so you can confirm every piece of documentation is in place before your retirement date.

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