How to Verify Your FERS Annuity Estimate Before You Retire (And Why You Should)

Last Updated: May 20, 2026

NARFE confirmed on May 19, 2026 that the OPM retirement backlog dropped below 50,000 cases for the first time since November 2025. OPM processed 17,175 claims in April while receiving only 11,940 new ones, a net surplus of 5,235. That is genuinely good news for processing speed.

It does not fix a wrong number.

A faster queue means OPM finalizes your annuity sooner. If your High-3 window is wrong, or your military deposit did not make it into your retirement record, or OPM applies a 1.0% multiplier when you qualify for 1.1%, you will receive that lower payment faster. The Reddit post that got this on the map, "Do NOT trust OPM to calculate your retirement annuity," collected 648 upvotes on r/fednews. The thread was not about delays. It was about wrong numbers that retirees caught only after the fact.

Your defense is a documented calculation you build before OPM touches your file.

This post covers the verification methodology. If you want to understand what each error type costs in dollars, that is in our companion guide: OPM Got My Annuity Wrong: Spot FERS Errors Worth $100,000+.

Key Takeaways

• OPM works from records your agency submits. Errors in those records become errors in your check.
• Your true High-3 is the highest consecutive 36 months anywhere in your career, not necessarily your last three years
• Paying the military deposit does not guarantee military service was posted to your retirement record. Get written confirmation.
• The 1.1% multiplier requires both age 62+ AND 20+ creditable years. Missing one condition permanently costs 10% of your annuity.
• Digital OPM applications (via retire.opm.gov) average 34 days; paper averages 95 days. Submit digitally, and have your baseline documented before you do.

Step 1: Pull Your Complete Employment Record (12 Months Out)

Your retirement calculation depends on records that live in your Electronic Official Personnel Folder. OPM does not recalculate from scratch. It works from what your agency submits. Your job is to verify those records are accurate before your agency packages them.

Go to eopf.opm.gov. This typically requires your agency network or a government-issued computer. If remote access is not available, call your HR office and ask for a printed copy of your complete OPF.

Download every SF-50 (Notification of Personnel Action) for your entire federal career. You should have one for every promotion, step increase, lateral transfer, locality change, and retirement coverage change going back to day one.

On each SF-50, check three blocks:

• Block 30: Retirement coverage code. Should show "K" for FERS, "1" for CSRS, or a CSRS Offset code. Any mid-career coverage changes affect how your annuity is computed.
• Block 31: Service Computation Date. This is the date OPM uses to calculate your leave accrual rate, but it also appears in your record alongside your separate Retirement SCD.
• Block 33: Work schedule (part-time or full-time). Extended part-time service reduces your creditable years.

The SCD that matters for your annuity is your Retirement SCD, which is maintained separately in your personnel records. Ask HR in writing what Retirement SCD they have on file and what they will submit to OPM. Differences between your Leave SCD and your Retirement SCD are normal, but it is the Retirement SCD that goes into the annuity formula.

If your Retirement SCD looks wrong, flag it to HR now. SCD corrections require documentation from prior agencies and can take months.

Step 2: Find Your True High-3 (12 Months Out)

Most employees assume their High-3 is their salary for the last three years. It does not have to be.

Your High-3 average salary is the highest average basic pay you earned during any consecutive 36-month window across your entire career. OPM defaults to your most recent 36 months because, for most people, pay trends upward. But if you took a locality pay cut when transferring agencies, or your highest grade was three assignments ago, your true High-3 may predate your final years.

Basic pay includes base pay, locality pay, and step increases that raised your rate. It does not include bonuses, overtime, or awards. LEAP and AUO count for covered law enforcement positions.

To find your true High-3: list your annual basic pay (base plus locality) for each 12-month period using your SF-50 history, then find the rolling 36-month window with the highest average. That number is your High-3.

The locality transfer trap is worth spelling out. An employee who spent years in San Jose (46.34% locality) and transferred to Rest of US (16.82%) in their final years will likely find their San Jose years produce a higher High-3 than their final three years. OPM's system defaults to recency. If your pay history does not trend upward, the default is wrong for you.

Use the High-3 Calculator to run the numbers. Record the exact dollar figures and the start and end dates of the 36-month window. That documented figure is what you compare against OPM's determination letter later.

Step 3: Calculate Your Creditable Service Years (12 Months Out)

The second input in the FERS formula is your total creditable service. This sounds simple. It rarely is.

Start by listing every federal service period: civilian service in a FERS-covered position with retirement deductions withheld, prior civilian service under CSRS or CSRS Offset, military service with deposit paid, and any breaks in service.

Military service needs extra attention. Paying the deposit (SF-3108) does not automatically put military years into your retirement record. The deposit has to be received by your payroll provider, posted to your Individual Retirement Record, and then reflected in the retirement package your agency sends OPM. Those are three separate handoffs, and any one of them can fail silently.

Get written confirmation from HR or your payroll office that your DD-214 and deposit receipt are both in your retirement package. Payment and posting are not the same thing.

Sick leave adds to your creditable service at a fixed rate: 174 hours equals one month of credit, and 2,087 hours equals one year. Ask your timekeeper for your projected sick leave balance at the 12-month mark and run the conversion. Add those months to your total service years. Re-run the math 30 days before retirement with your final projected balance.

Two more traps to check. Extended leave without pay (more than six months in a calendar year) can reduce your creditable service. Review your SF-50 history for any long LWOP periods and ask HR how they were applied to your Retirement SCD. And if any of your civilian service predates 1989, check whether a redeposit was required under FERS rules. Employees converted from CSRS to FERS often assumed pre-1989 non-deduction service was automatically credited. It was not.

Step 4: Run the Formula and Document Your Baseline (12 Months Out, Then Again 30 Days Before Retirement)

Once you have your High-3 and your creditable service years, the calculation is:

Annual Annuity = High-3 Average Salary × Creditable Service Years × Multiplier

The multiplier is 1.0% for most retirees. It is 1.1% only if you retire at age 62 or older AND have at least 20 years of creditable service. Both conditions must be true. Employees often focus on the age requirement and miss the 20-year floor. If you retire at 63 with 19.5 years of creditable service, you get 1.0%, not 1.1%. That is a 10% annuity reduction for life.

Run your numbers with the FERS Retirement Calculator. Enter your documented High-3, your creditable service years including the sick leave conversion, and confirm which multiplier you qualify for.

Then write it down somewhere you will find again:

• Your High-3 figure and the exact 36-month window (start date, end date)
• Your creditable service in years and months
• Which multiplier you used and why you qualify
• Your calculated annual annuity
• The date you ran the calculation

This is your personal baseline. Run it again 30 days before retirement with your updated sick leave balance. If the two figures differ by more than a few hundred dollars a year, find out why before you separate.

Step 5: Request the Official Estimate from Agency HR (6 Months Out)

Most agencies will provide a written retirement estimate if you ask. Request one in writing at least six months before your retirement date.

Ask them to include: the High-3 salary they have on file and the 36-month window they used; the Retirement SCD they will submit to OPM; whether your military deposit is in the record; the sick leave balance they will report at separation; and the computed annual annuity.

Compare that estimate against your Step 4 baseline, line by line.

Discrepancies found here are fixable. If HR used a different High-3 period, ask which SF-50 years they pulled. If your military deposit is not in the record despite payment, submit the documentation now. Getting a correction made while you are still an active employee takes a phone call and a few forms. Getting the same correction after OPM finalizes your annuity requires a formal reconsideration request, a 30-day deadline, and no guarantee the outcome goes your way.

If HR corrects something material, ask for a second written estimate closer to your retirement date to confirm the fix made it into your file.

Step 6: Verify Your Survivor Benefit Election (30 Days Before Retirement)

Before submitting your retirement application, confirm the survivor benefit election you intend to make. There are three options under FERS:

• Full survivor benefit: Your spouse receives 50% of your unreduced annuity after you die. Your annuity is permanently reduced by 10%.
• Partial survivor benefit: Your spouse receives 25% of your unreduced annuity. Your annuity is permanently reduced by 5%.
• No survivor benefit: Requires your spouse's notarized written consent on SF 3107-2.

The election is recorded on Form SF 3107 for FERS employees.

The mismatch to watch for: what you elected and what OPM recorded are not always the same. A partial election processed as full costs you an extra 5% of your annuity every month for the rest of your life. A lost consent form means a "no survivor" election may not hold.

Review the election on your retirement application before submitting. After OPM finalizes your annuity, changing the survivor election requires a specific qualifying event (divorce, death of spouse) or a court order. Preferences are not enough.

Step 7: Compare OPM's Initial Determination Letter Line by Line (Upon Receipt)

When OPM issues your initial annuity determination letter, it will include your CSA number and a computation breakdown. Compare every figure against your documented baseline.

Line Item	What OPM Should Show	Where Your Number Came From	Flag If Different By
High-3 average salary	Your documented High-3 figure	SF-50 history and your Step 2 calculation	More than $50
High-3 period dates	Your documented 36-month window	Your Step 2 documentation	Any date discrepancy
Creditable service years	Your total, including military and sick leave	Your Step 3 calculation	More than 1 month
Military service years	Deposit-paid years you identified	HR written confirmation	Any omission
Sick leave credit	Converted months from your final balance	Your Step 3 sick leave conversion	More than 0.5 months
Multiplier	1.0% or 1.1% per your eligibility	Your Step 4 determination	Any difference
Survivor benefit election	The option you elected	Your Step 6 election form	Any difference
Annual annuity	Should match your computed baseline	Your Step 4 calculation	More than $100/year

If any figure differs from your baseline, act immediately. You have 30 calendar days from the date of OPM's initial decision to file a reconsideration request using Form RI 38-47. The reconsideration process, including how to escalate to the Merit Systems Protection Board if needed, is in the companion post: OPM Got My Annuity Wrong: Spot FERS Errors Worth $100,000+.

Verification Timeline: Complete Summary

When	Action	What You Are Confirming
12 months out	Pull every SF-50 from eOPF	Complete service history, retirement coverage codes, SCD
12 months out	Identify your true High-3 (highest rolling 36 months)	Correct salary window, locality pay included
12 months out	Calculate creditable service, including sick leave conversion	Military deposit posted, LWOP periods accounted for
12 months out	Run the formula; document your baseline	Your independent annuity figure with multiplier confirmed
6 months out	Request written HR estimate	HR's High-3, SCD, and annuity align with your baseline
6 months out	Confirm military deposit in your official record	Written confirmation from HR/payroll
30 days out	Re-run formula with final sick leave balance	Updated baseline before separation
At retirement paperwork	Verify survivor benefit election on SF 3107	Election recorded matches your intent
Upon OPM letter	Compare line by line against your documented baseline	Every figure matches within rounding
Within 30 days of OPM letter	File RI 38-47 if any figure is wrong	Reconsideration rights preserved

Calculate Your FERS Annuity Now

Build your baseline before OPM does.

The FERS Retirement Calculator takes your High-3, creditable service years, and retirement age to compute your expected annuity, and shows which multiplier you qualify for. Run it at 12 months out, then again 30 days before retirement. That number is what you hold OPM's letter up against.

For identifying your true High-3 across a multi-assignment career, use the High-3 Calculator separately.

Frequently Asked Questions

How do I get a copy of all my SF-50s to verify my retirement record?

Access your eOPF at eopf.opm.gov. This usually requires your agency network or a government computer. If remote access is not available, contact your HR office and request a printed copy of your complete personnel file. You should have one SF-50 for every personnel action (promotions, step increases, lateral moves, retirement coverage changes) going back to your first day of federal service.

What is the difference between Leave SCD and Retirement SCD on my SF-50?

Your Leave SCD appears in Block 31 of your SF-50 and determines your annual leave accrual rate. Your Retirement SCD, maintained separately in your personnel record, is what OPM uses to compute creditable service for the annuity formula. They often differ because the Retirement SCD accounts for military deposits, civilian service gaps, and non-deduction service differently. Ask your HR office to confirm which date OPM will use.

When should I request an official retirement estimate from my agency?

At least six months before your planned retirement date. Most agencies will provide a written computation showing their High-3 figure and the window used, your Retirement SCD, and your expected annuity. Twelve months out is better, because any record errors take time to correct before they reach OPM.

What if my agency's HR estimate and my own calculation do not match?

Ask HR to show you which SF-50s they used to determine your High-3 and what Retirement SCD appears in your official record. The most common causes: HR defaulted to your last 36 months instead of your true highest window; your military deposit is in payroll but not in your personnel file; a LWOP period reduced your creditable service. Get any discrepancy corrected in writing before you separate. Fixing it after OPM finalizes requires a reconsideration request within 30 days.

How do I know if OPM applied the correct multiplier (1.0% vs 1.1%)?

The 1.1% multiplier requires both: age 62 or older at retirement AND at least 20 years of creditable service. If you retire at 62 with 19 years and 9 months of civilian service, you get 1.0%, not 1.1%. OPM's determination letter states the multiplier. Check it against your retirement date and total creditable service. A 1.0% where 1.1% applies is a 10% permanent annuity reduction, and it requires immediate reconsideration.

Related Resources

• FERS Retirement Calculator: Build your independent annuity baseline before OPM finalizes theirs
• High-3 Calculator: Identify your true highest consecutive 36-month salary window
• OPM Got My Annuity Wrong: Spot FERS Errors Worth $100,000+: What each error type costs and how the reconsideration process works
• Military Buyback Guide 2026: Confirm your deposit is fully documented before it reaches OPM
• First Year Federal Retirement Guide 2026: Month-by-month walkthrough of what happens after you separate
• OPM Retirement Processing Times 2026: How long processing takes and what happens during interim pay

Sources:

• OPM Backlog Drops Below 50,000 (NARFE, May 19, 2026)
• OPM Retirement Backlog Drops Below 50,000 For First Time Since November (FedSmith, May 8, 2026)
• OPM FERS Computation Rules
• OPM Creditable Service Rules
• OPM Retirement Processing Times
• How federal employees can check if their retirement estimate is accurate (GovExec, Jul 2025)
• RI 38-47: Information and Instructions on Your Reconsideration Rights (OPM)

This guide is informational and not legal or financial advice. Individual situations vary. If your annuity calculation is in dispute, consult a federal employment attorney or NARFE service officer.