FIRE for Military: How Your Pension, TSP, and VA Benefits Change Your FIRE Number

Most FIRE content assumes you have a 401(k), no pension, and no employer-provided healthcare after retirement.

Military service changes all three of those assumptions.

You have access to a retirement toolkit that no private-sector employer matches:

1. A defined benefit pension — for life, starting the day you separate after 20+ years
2. The Thrift Savings Plan (TSP) — the lowest-fee 401(k) equivalent in existence, with matching under the Blended Retirement System
3. VA healthcare and disability compensation — tax-free income and healthcare coverage that directly reduces your FIRE number

Here is how each of these tools changes your FIRE math — and how to build a military FIRE strategy that works whether you serve 4 years or 24.

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The Military Pension: How It Changes Your FIRE Number

A military pension fundamentally changes FIRE math. Instead of needing 25× your annual expenses, you only need 25× the gap between your expenses and your pension income.

The formula:

Military FIRE Number = (Annual spending − Annual pension) ÷ 0.04

Pension by System and Rank After 20 Years

There are two active pension systems, depending on when you enlisted:

The "High-36" is the average of your 36 highest months of base pay — typically your last three years of service.

Pension Amounts by Rank and System

Pension income is COLA-adjusted annually and starts the day you separate — not at age 65.

The FIRE Number Reduction in Practice

An E-7 veteran at $70,000/year in spending with a $25,000 BRS pension needs $1,125,000 — $625,000 less than a civilian peer spending the same amount. The pension eliminates 36% of the required portfolio.

Use the FIRE Calculator to model your pension-adjusted FIRE number by entering your pension income in the "Other Annual Income" field.

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TSP: The Military 401(k) (With the Lowest Fees in Existence)

The Thrift Savings Plan functions like a 401(k) but with significantly lower expense ratios — TSP's core index funds charge 0.04% or less, vs. the average 401(k) fund fee of 0.48%.

2026 TSP Contribution Limits

BRS Matching: The 5% Rule

Under the Blended Retirement System, contributing at least 5% of your base pay to TSP triggers maximum DoD matching:

Never leave money on the table. Contributing less than 5% under BRS is declining free compensation. At a $60,000 base pay, the full 5% DoD match is $3,000/year — free money that compounds over your career.

TSP Withdrawal Rules for Military FIRE

TSP is a 401(k)-type account — the 10% early withdrawal penalty applies before age 59½ unless you use the Rule of 55:

Rule of 55: If you separate from military service in the calendar year you turn 55 or older, you can withdraw from TSP without the 10% penalty.

For service members separating at 20 years (typically ages 38–44), the Rule of 55 does not apply. Your FIRE bridge strategy for ages 38–55 should use:

1. Taxable brokerage account — no withdrawal restrictions
2. Roth IRA contributions (principal only) — accessible penalty-free at any age
3. Roth conversion ladder — convert traditional TSP to Roth over low-income FIRE years (note: TSP now supports Roth in-plan conversions as of 2026 — see TSP Roth In-Plan Conversion 2026 Strategy →)
4. Military pension — begins immediately at separation

This is similar to civilian FIRE early access strategies — the pension eliminates most of the urgency since it covers baseline expenses from day one.

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VA Benefits: The Hidden FIRE Accelerator

VA benefits can significantly reduce both your FIRE number and your healthcare costs in early retirement.

VA Disability Compensation (Tax-Free Income)

VA disability compensation is tax-free and paid monthly for service-connected conditions. Every dollar of VA disability income reduces your required FIRE portfolio:

A 50% VA disability rating eliminates the need for $306,000 in FIRE portfolio. At 70%, that's $510,000. These are not small adjustments — they can move a veteran's FIRE date forward by years.

VA Healthcare Coverage

VA healthcare coverage is available to eligible veterans at low or no cost for service-connected conditions. Coverage tiers depend on your service length, discharge status, and disability rating:

• Priority Group 1 (100% disabled or P&T): Full VA healthcare at no cost, including prescriptions
• Priority Groups 2–6 (service-connected, 10–90% rating): Low-to-no copays for service-connected conditions
• Priority Group 7–8 (income-based): Copays apply; income-tested enrollment

For FIRE planning purposes: VA healthcare does not fully replace ACA/Medicare coverage but substantially reduces healthcare costs for service-connected conditions. Veterans in Priority Groups 1–3 often use VA as primary care and ACA Marketplace as supplemental coverage for non-service-connected needs.

The ACA Marketplace is the primary healthcare bridge for military retirees until Medicare at age 65. At low FIRE income levels ($30,000–$50,000/year), ACA subsidies can reduce premiums significantly — though note that ACA enhanced subsidies expired in 2026, increasing premiums for many enrollees. See our FIRE healthcare guide for the full analysis.

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BAH and BAS: The FIRE Savings Supercharger During Active Duty

Military allowances are where the FIRE math becomes exceptional.

BAH (Basic Allowance for Housing) covers housing costs and is completely tax-free. Rates range from ~$1,200/month in rural areas to $4,000+/month in high-cost-of-living areas (Hawaii, San Diego, Washington D.C.). BAH is set at the with-dependents rate for military members with families.

BAS (Basic Allowance for Subsistence) covers food costs and is also tax-free:

• Officers: ~$450/month ($5,400/year)
• Enlisted: ~$400/month ($4,800/year)

The FIRE Opportunity: If BAH covers your housing and BAS covers your food, you can theoretically invest 100% of your base pay. At an E-7 base pay of ~$5,200/month:

• Max TSP contribution: $24,500/year ($2,042/month)
• Remaining base pay: ~$3,158/month available for taxable investing, Roth IRA, or additional savings
• BAH: covers housing (tax-free)
• BAS: covers food (tax-free)
• Effective savings rate: 60–80%+ of gross compensation for a disciplined military saver

This savings rate is structurally impossible for most civilian earners. It is the primary reason military service members have one of the highest rates of FIRE achievement of any profession.

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Military FIRE Roadmap: The Four-Phase Strategy

Phase 1: Active Duty Accumulation (Years 1–20)

Goal: Max TSP, build taxable brokerage, capture full BRS matching

• Contribute at least 5% of base pay to TSP (capture full DoD 5% match)
• Max TSP at $24,500/year if possible — at E-7 pay, this is ~39% of base pay
• Open and max a Roth IRA ($7,500/year in 2026) — Roth is particularly valuable for military because active-duty tax brackets are low (or zero in combat zones)
• Build taxable brokerage for the bridge period (ages 38–55)
• Combat zone exclusion: All pay earned in a designated combat zone is tax-free — max Roth contributions in combat zones (tax-free income → tax-free Roth contributions → tax-free growth forever)

Key tools: FIRE Calculator, Compound Interest Calculator, Investment Return Calculator

Phase 2: Military Retirement (Age ~38–44)

Goal: Activate pension, calculate pension-adjusted FIRE number, transition

• Pension begins immediately — not at 65
• Reassess FIRE number: (Annual spending − Annual pension) ÷ 0.04
• File for VA disability rating if you have service-connected conditions — this is your right and reduces your FIRE number
• Decide on career: full FIRE vs. second career (Barista FIRE equivalent)
• Most military retirees have significant TSP balances that continue compounding tax-deferred

Phase 3: Early Retirement Bridge (Age 38–55)

Goal: Fund living expenses with pension + portfolio withdrawals without TSP penalty

• Pension + taxable brokerage + Roth IRA contributions cover expenses
• Traditional TSP stays invested (compounding without withdrawals avoids penalty)
• Roth conversion ladder: Convert traditional TSP to Roth each year in low-income brackets
• Healthcare: ACA Marketplace (income-managed) + VA for service-connected conditions

Key tools: Withdrawal Strategy Calculator, Roth Conversion guide

Phase 4: Full Pension + TSP Access (Age 55–65+)

Goal: Rule of 55 unlocks TSP; Social Security adds supplemental income at 67

• Rule of 55 opens TSP withdrawals penalty-free (if you separated at 55+; otherwise wait until 59½)
• Social Security at 67 supplements pension + TSP income
• Medicare at 65 reduces healthcare costs; TRICARE for Life begins at 65 for military retirees (covers Medicare gaps)

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The Military FIRE Calculator

To model your exact military FIRE number:

1. Estimate your pension: 2% × years of service × estimated High-36 base pay (BRS) or 2.5% × years of service × High-36 (legacy)
2. Estimate VA disability income (if applicable): Check current VA compensation rates at va.gov/disability/compensation-rates/
3. Enter pension + VA income as "Other Annual Income" in the FIRE Calculator — this directly reduces your required portfolio
4. Adjust for healthcare: Military retirees before 65 typically budget $400–$700/month for ACA premiums (before subsidies) on top of VA coverage

Example — E-7 Military Retiree with 50% VA Rating:

• Annual spending: $70,000
• Military pension (BRS, 20 years): $24,960/year
• VA disability (50% rating): $12,240/year
• Total guaranteed income: $37,200/year
• Portfolio needed for gap: ($70,000 − $37,200) ÷ 0.04 = $820,000
• vs. civilian equivalent needing $1,750,000 — the military toolkit eliminates $930,000 in required portfolio

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What If You Separate Before 20 Years?

Not everyone serves to 20 years. Under BRS, the pension is all-or-nothing at 20 years — but your TSP is fully portable:

• Vested after 2 years: Your entire TSP account belongs to you after 2 years of service
• DoD automatic 1% continues vesting: Full vesting after 2 years
• TSP portability: Roll to a civilian 401(k) or IRA when you separate, or leave it in TSP (often the better choice given TSP's fees)
• Continuation pay: Under BRS, you receive a lump-sum continuation pay at 12 years if you re-enlist — 2.5x to 13x your monthly base pay. A typical E-6 might receive $15,000–$78,000. Invest this in your FIRE portfolio.

For service members separating before 20 years, the strategy shifts to standard civilian FIRE with the TSP as the primary vehicle, likely supplemented by a VA disability rating if applicable.

Second career as a DoD civilian (FERS): Many veterans transition into DoD civilian employment after separating from active duty. If you work as a federal civilian under FERS, you accumulate a separate FERS pension and — critically — gain access to the FERS Annuity Supplement, which bridges the gap between early retirement and age 62 by paying an approximation of your Social Security benefit. For veterans who complete 20 military years and continue into federal civilian service, the combined pension + TSP + FERS Supplement + VA disability stack can dramatically reduce the portfolio required for FIRE. See the FERS Supplement 2026: Complete Guide for Federal Employee FIRE Planning for the bridge math.

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Internal Links and Related Calculators

• FIRE Calculator: Model your pension-adjusted FIRE number
• Coast FIRE Calculator: How much have you already saved toward FIRE?
• Withdrawal Strategy Calculator: How will you draw down in retirement?
• TSP Roth In-Plan Conversion 2026: Build a Roth ladder directly inside your TSP
• Roth Conversion Ladder guide: How to access tax-deferred accounts early
• ACA Subsidy Cliff: Managing healthcare costs in early retirement
• FIRE for Teachers: Another profession-specific FIRE guide with pension math
• FERS Supplement 2026: Complete Guide for DoD civilian veterans transitioning to federal service
• 4% Rule 2026: Is the safe withdrawal rate still safe?
• Retire at 40 Guide: The full 45-year retirement math — most military members separating at 20 years are age 38–44

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The military FIRE toolkit — pension + TSP + VA benefits — creates a structurally different early retirement than civilian FIRE. The pension alone can cut your required portfolio by 30–50%. Layer in VA disability compensation, tax-free allowances during service, and TSP's ultra-low fees, and you have a path to financial independence that most civilian earners simply cannot replicate at the same income level.