Methodology & assumptions
- Projection horizon: from your retirement age through age 100.
- FERS pension formula: high-3 salary × years of service × 1.0% (or 1.1% if you retire at 62+ with 20+ years). Unused sick leave is converted to extra service time at 2,087 hours = 1 year (it boosts the pension but not eligibility).
- Survivor benefit: electing a 50% survivor annuity reduces your own pension by 10%; a 25% election reduces it by 5%; "None" applies no reduction.
- Special Retirement Supplement (SRS): a flat (no-COLA) FERS benefit paid from retirement until age 62, included as taxable income. Only applies if you retire before 62.
- Pension COLA: 2% per year, beginning at age 62 (the FERS rule). Pension stays level between retirement and age 62 if you retire earlier.
- Social Security COLA: 2.5% per year, applied from the year benefits begin. No benefit is paid before your chosen start age (minimum 62).
- Savings growth: a blended return is computed from your safe/growth split and applied to the combined balance each year. Withdrawals (your % of balance) are taken first, then the remainder grows.
- Withdrawal sourcing: each year's withdrawal is drawn proportionally from your Traditional, Roth, and non-IRA balances.
- Federal tax: progressive 2025 brackets for your selected filing status with the standard deduction (plus the age-65+ additional deduction). Taxable income includes the pension, Traditional IRA/TSP withdrawals (fully taxed), the interest/earnings on the non-IRA account (principal withdrawals are not taxed), and 85% of Social Security. Roth withdrawals are tax-free.
- State tax: the rate you enter, applied to pension + Traditional withdrawals + non-IRA interest/earnings (Social Security and Roth excluded — most states do not tax Social Security).
- Health insurance is treated as a fixed annual out-of-pocket cost and held level.
- This is an estimate for planning only — not tax, legal, or investment advice.
Section 1 · Gross & Net Retirement Income
Gross income = pension + Social Security + savings withdrawals. Net = gross − federal tax − state tax − health insurance.
Section 2 · Retirement Savings Over Time
Combined balance of Traditional, Roth, and non-IRA accounts after each year's withdrawal and growth.
Year-by-Year Detail
Highlighted rows mark milestone ages (62 pension COLA, Social Security start, 90).