OPM Updates Civil Service Retirement Math Factors
Published Date: 6/23/2026
Notice
Summary
The Office of Personnel Management is updating the math used to figure certain Civil Service Retirement benefits starting October 1, 2026. This affects retirees who choose survivor benefits after marriage, owe redeposits, or fix retirement coverage errors. These changes make sure benefits stay fair and match new economic and life expectancy info.
Analyzed Economic Effects
6 provisions identified: 0 benefits, 0 costs, 6 mixed.
New Present Value Tables Published
OPM published updated present value factor tables that will be used when converting lump sums into lifetime annuity reductions. The new tables (for example: age 40 = 388.8; age 65 = 214.7; age 100 = 26.2; ages 17–39 are listed separately) take effect for annuities or computations on or after October 1, 2026.
Alternative Form of Annuity Recalculations
If you are a CSRS retiree who elects an alternative form of annuity under 5 U.S.C. 8343a, OPM will use the revised present value factors to compute the actuarial reduction for annuities that commence on or after October 1, 2026. The revised computation method is required by 5 CFR 831.2205(a).
Redeposit Calculations for Pre-1991 Service
If you owe a redeposit for refunded service that ended before March 1, 1991 under 5 U.S.C. 8334(d)(2), OPM will use the revised present value factors to compute the reduction to complete payment for annuities that commence on or after October 1, 2026. This follows 5 CFR 831.303(c).
Post-Retirement Marriage Survivor Reductions
If you are a CSRS retiree who elects to provide a survivor annuity based on a post-retirement marriage under 5 U.S.C. 8339(j) or (k), OPM will apply the revised present value factors to establish the permanent actuarial reduction starting for survivor reductions that commence on or after October 1, 2026. The change implements the method described in 5 CFR 831.663.
Nonappropriated Fund Service Credit Costs
If you elect to credit service with nonappropriated fund instrumentalities under 5 U.S.C. 8347(q) to qualify for immediate CSRS retirement, OPM will use the revised present value factors to compute the deficiency you must pay when the date of computation under 5 CFR 847.603 or 847.809 is on or after October 1, 2026.
FERCCA Coverage-Error Reductions Updated
For retirees and survivors affected by erroneous retirement coverage corrections under FERCCA, OPM will use the revised present value factors to compute actuarial reductions for unpaid service credit deposits, Government Thrift Savings Plan contributions, or prior payment of the FERS Basic Employee Death Benefit. The new factors apply to annuities commencing on or after October 1, 2026, and to deaths occurring on or after October 1, 2026 for prior payment of the Basic Employee Death Benefit.
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