The Combat Zone Tax Exclusion (CZTE), codified at 26 U.S.C. § 112, is the single largest tax break in the military pay system. It lets a service member exclude military pay earned while serving in a designated combat zone (or qualified hazardous duty area) from federal gross income — for enlisted members, in full; for officers, up to a monthly cap tied to the highest enlisted pay grade plus imminent-danger pay.
CZTE also unlocks two adjacent benefits: a filing-deadline extension equal to time in the combat zone plus 180 days, and — for the well-informed — a legal way to contribute up to the 415(c) TSP limit (~$70,000 in 2026) of tax-free income to a Roth TSP, creating a mega-Roth that no civilian retirement plan can match.
What CZTE excludes
For any month in which a service member serves at least one day in a designated combat zone:
- Base pay for that month.
- Reenlistment bonuses if the reenlistment agreement is signed in the combat zone.
- Imminent-danger / hostile-fire pay.
- Awards/decorations bonuses received while in-zone.
- Selective retention bonuses attributable to periods in-zone.
The exclusion covers the entire month, even if the service member spent only one day in the zone.
Qualifying combat zones
The current list, per IRS Publication 3 ("Armed Forces' Tax Guide"), includes:
- Arabian Peninsula area — Iraq, Saudi Arabia, Kuwait, Bahrain, Qatar, UAE, Oman, plus the Persian Gulf, Gulf of Aden, Gulf of Oman, and the Red Sea. (Executive Order 12744.)
- Afghanistan and its airspace (Executive Order 13239).
- Kosovo area — Kosovo, Albania, the Adriatic Sea, and the Ionian Sea north of the 39th parallel (Executive Order 13119).
- Various Qualified Hazardous Duty Areas (QHDAs) designated by Congress that receive combat-zone treatment for tax purposes.
Zones can be added or removed by Executive Order or Act of Congress — check the current IRS Pub 3 for the authoritative list for your tax year.
The officer cap
Enlisted members and warrant officers exclude 100% of qualifying military pay. Commissioned officers exclude up to the highest rate of enlisted base pay (E-9 with over 40 years of service) plus $225 imminent-danger pay per month. Pay above that cap is taxable.
For 2026, this cap is roughly $10,800/month (the E-9 over-40 base rate plus $225). If an officer's monthly combat-zone pay exceeds that number, the excess is included in gross income.
TSP + CZTE — the mega-Roth
Two interacting rules make combat-zone TSP contributions extraordinarily valuable:
- CZTE income is federally tax-free. Contributing it to Roth TSP means those dollars go in tax-free AND come out tax-free at retirement — an outcome civilian Roth accounts cannot replicate (civilian Roth requires already-taxed dollars).
- The normal 402(g) elective deferral limit does NOT apply to CZTE contributions. Instead, the higher 415(c) annual additions limit (~$70,000 in 2026 including matching) applies. Service members can contribute far above the standard $23,500 limit while deployed.
Practical execution: start your combat-zone TSP contribution election through myPay before deployment, and set the percentage to whatever will hit the 415(c) limit given deployment duration. A single 9-month deployment can shelter 30-40k of tax-free income into a Roth vehicle.
Filing deadline extension (§ 7508)
Under 26 U.S.C. § 7508, service members serving in a combat zone automatically get an extension of time to file federal returns, pay taxes, or file claims for refund equal to time in the combat zone + 180 days + the number of days left in the filing period when they entered the zone. The IRS also suspends collection actions and audits during this window.
To claim the extension, write "COMBAT ZONE" in red across the top of your return and include the entry (and exit) dates.
How CZTE shows up on your LES and W-2
- LES: Combat zone months show CZTE-eligible pay as "COMBAT ZONE TAX EXCL" in the earnings block.
- W-2 Box 1 (federal wages) excludes combat-zone pay — that's the exclusion, applied.
- W-2 Box 12, Code Q reports the amount of combat-zone pay excluded — informational only.
- W-2 Boxes 3 and 5 (Social Security and Medicare wages) include combat-zone pay — CZTE is an income-tax exclusion, not a payroll-tax exclusion.
Pitfalls
- State tax: Most states honor CZTE. A few (Pennsylvania has been the traditional outlier) may include some combat-zone pay for state purposes.
- EIC: CZTE pay does NOT count as earned income for the Earned Income Credit — unless you elect to include it. This election is often the right move for low-to-mid-income enlisted families, because including CZTE unlocks a much larger EIC. See IRS Pub 3.
- Officer cap check: Officers who exceed the enlisted cap must include the excess as taxable income — myPay does this correctly, but always verify against Pub 3.
FAQs
Do I still pay Social Security and Medicare on combat-zone pay?
Yes. CZTE is a federal income tax exclusion only. Payroll taxes still apply.
What if I'm in Kuwait but never enter a combat zone?
Kuwait is on the Arabian Peninsula list — any portion of the month spent in-country qualifies.
Do drill sergeants at CONUS installations get CZTE?
No. CZTE requires physical presence in a designated combat zone or QHDA.
Related
See the Military Taxes hub, our Is BAH taxable? page, and Military Pay Calculator.