High-3 Average Calculator: Your Pension Base and Survivor Benefit
Example: Highest-paid year — annual basic pay: 80000 $ · Second year — annual basic pay: 76000 $ · Third year — annual basic pay: 72000 $ · Years of qualifying service: 20 yrs
| Projected monthly pension | $3,167 |
| Projected annual pension | $38,000 |
| High-3 average annual pay | $76,000 |
| SBP survivor monthly benefit (55% of pension) | $1,742 |
Worked example
With your three highest years at $80,000, $76,000, and $72,000, the High-3 average is $76,000. At 20 years of service under Legacy: pension = 2.5% × 20 × $76,000 = $38,000/year ($3,167/month). At 22 years: $41,800/year. Under the Survivor Benefit Plan (SBP), your surviving spouse would receive 55% of $3,167 = $1,742/month — but that costs 6.5% of the covered base ($3,167), or about $206/month from your pension while you are alive. Model both with and without SBP before retiring.
Frequently asked questions
What is the difference between High-3 and Final Pay?
Legacy High-3 (for members who entered service between September 8, 1980 and July 31, 1986) bases the pension on the average of the highest 36 months of basic pay. Final Pay (for members who entered before September 8, 1980) bases it on the last month's basic pay — often higher. Members under BRS also use the High-36 (High-3) average.
Do allowances (BAH, BAS) count toward the High-3?
No. Only basic pay counts toward the High-3 average. Allowances (BAH, BAS, special pays) are not included in the retirement pension calculation, which is one reason military compensation is more valuable than a direct pay comparison to civilian salaries suggests.
Is 20 years the minimum for a Legacy pension?
Yes. Under Legacy High-3 and BRS, 20 years of qualifying active service is the minimum for any pension. Separation before 20 years, even at 19 years and 364 days, forfeits the pension entirely — unless you qualify for TERA (Temporary Early Retirement Authority) during authorized drawdown periods.
How does the Survivor Benefit Plan work?
SBP is an annuity that continues up to 55% of your retirement pay to your surviving spouse (or other eligible beneficiary) after your death, for the spouse's lifetime. The premium is 6.5% of your elected base amount per month. SBP adjusts with COLA so the benefit keeps pace with inflation. You must elect SBP at retirement; declining it requires your spouse's notarized concurrence.