Military compensation has a massive built-in tax advantage that most service members don't fully appreciate until they leave and see their first civilian paycheck. Between tax-free allowances, combat zone exclusions, and state tax benefits, the average service member's effective tax rate is 5-15% lower than a civilian earning the same total compensation.
BAH and BAS Are Completely Tax-Free
This is the big one. Your Basic Allowance for Housing and Basic Allowance for Subsistence are not reported as income on your W-2. For an E-6 with dependents at a moderate-cost base, that's roughly $2,300/month in BAH plus $477/month in BAS — $33,324/year in income that the IRS never sees. A civilian would need to earn approximately $42,700 in gross salary to net that same $33,324 after taxes.
This means your taxable income (base pay + special pays) is much lower than your total compensation, putting you in a lower federal tax bracket than your actual spending power would suggest.
Combat Zone Tax Exclusion
If you deploy to a designated combat zone, your entire military income becomes tax-free for enlisted members — base pay, special pays, everything. For officers, base pay is exempt up to the senior enlisted maximum. A 6-month deployment can save $5,000-$15,000 in federal taxes alone. This is on top of Hostile Fire Pay ($225/month) and any other deployment-related pays.
State Tax Strategies
Under the Servicemembers Civil Relief Act (SCRA), you pay state income tax based on your state of legal residence, not where you're stationed. If your home of record is a no-income-tax state (Texas, Florida, Nevada, Washington, Tennessee, Wyoming, South Dakota, Alaska, New Hampshire), you pay zero state income tax regardless of where the military sends you. If it's not, consider changing your state of legal residence during a PCS to one of these states.
The savings are significant: an E-7 in California's 9.3% bracket loses roughly $5,600/year in state taxes. The same E-7 with Texas residency pays $0. Over a 20-year career, that's $112,000 in savings.
TSP: The Best Retirement Account in America
The Thrift Savings Plan has the lowest expense ratios of any retirement plan in the country — 0.04% versus 0.5-1.0% for typical civilian 401(k) funds. Over 20 years, that fee difference alone can mean $50,000-$100,000 more in your account. If you're in BRS, the government matches up to 5% of your base pay. If you're not contributing at least 5%, you're literally declining free money.
For a full picture of how these tax advantages affect your total compensation value, run your scenario in the Mil-Multiplier Compensation Calculator.
Roth TSP During Deployment
This is the ultimate tax hack. During a combat zone deployment, contribute to Roth TSP. Your contributions go in tax-free (because combat zone income isn't taxed) and come out tax-free in retirement (because Roth). You'll never pay taxes on that money — not going in, not growing, not coming out. No civilian has access to this combination.
Ready to run your numbers?
Open the Compensation Calculator →