Combat Zone Tax Exclusion: What Pay Is Excluded, Officer Caps, and Filing Extensions

The exclusion rules

How does the combat zone tax exclusion work?

The combat zone tax exclusion (CZTE) is authorized under 26 U.S.C. 112. It applies on a monthly basis: if you serve even one day in a designated combat zone during a calendar month, your qualifying pay for that entire month is excluded from gross income. You do not need to file any paperwork -- your military pay office automatically removes the excluded income from your W-2.

What counts as a qualifying month?

Any month in which you meet one of these conditions:

• You served in a designated combat zone (including its airspace).
• You served in a direct-support area certified by the Department of Defense in connection with a combat zone.
• You served in a qualified hazardous duty area designated by Executive Order.
• You were hospitalized as a result of wounds, disease, or injury sustained while serving in a combat zone (hospitalization time also qualifies, even if the hospital is outside the zone).

Enlisted vs. officer: who excludes what?

For 2025, the highest E-9 basic pay rate was approximately $11,167 per month (Sergeant Major of the Army/equivalent at maximum longevity), making the officer cap roughly $11,392 per month including $225 hostile fire pay. The 2026 figure adjusts based on the annual military pay raise; check the current DoD pay chart for the exact number. Any officer pay above this cap remains taxable.

Which areas are designated combat zones?

The IRS recognizes combat zones designated by Executive Order and areas certified by the DoD for direct support. As of 2026, the active zones are:

Zones can be added or ended by Executive Order at any time. The IRS maintains the official list of combat zones. Always verify before assuming a deployment qualifies.

What types of pay are excluded?

The exclusion is broad. For qualifying months in a combat zone, the following are excluded from federal income tax (up to the officer cap, if applicable):

• Basic pay
• Special and incentive pays (hostile fire/imminent danger pay, flight pay, dive pay, etc.)
• Re-enlistment bonuses earned during combat zone service
• Accrued-leave payments for leave earned in the combat zone
• Awards and bonuses (if the right to receive them is attributable to a qualifying month)

Notably, BAS (Basic Allowance for Subsistence) and BAH (Basic Allowance for Housing) are already tax-free regardless of location, so the combat zone exclusion has no additional effect on them.

How the filing deadline extension works

Combat zone service grants an automatic extension for filing your tax return, paying tax, and claiming a refund. No form is needed. The formula is:

This extension covers not just your tax return but also estimated tax payments, IRA contributions, Roth conversions, and virtually every other tax deadline. Interest and penalties are suspended during the extension period.

If you are hospitalized outside the zone for injuries sustained in the zone, the hospitalization time also counts toward the extension -- your clock does not start until you are discharged from the hospital or after five years, whichever comes first.

Combat zone TSP contributions: a powerful strategy

One of the most valuable tax planning opportunities during deployment is maximizing your Thrift Savings Plan (TSP) contributions from tax-excluded pay. Here is why:

• Roth TSP contributions from excluded pay. Because your combat zone pay is already excluded from tax, contributing it to the Roth TSP means neither the contribution nor the future earnings will ever be taxed. This is effectively triple-tax-free money: excluded now, grows tax-free, and withdrawn tax-free.
• Higher annual addition limit. In a combat zone, you may be eligible for the IRC Section 415(c) annual addition limit (which is higher than the normal elective deferral limit). For 2026, the regular elective deferral limit is $24,500, but the annual addition limit under 415(c) is significantly higher. This allows you to contribute more than the standard cap during deployment. Check with your finance office for the exact limit.

If you are not already contributing to TSP during deployment, you are leaving one of the most tax-efficient opportunities in the federal system on the table.

What CZTE does not cover

The exclusion has limits that catch some service members off guard:

1. Non-military income. Investment income, rental income, and a spouse's wages are not excluded, even if you earn them while deployed.
2. FICA taxes. Social Security and Medicare taxes still apply to combat zone pay. The exclusion is for federal income tax only.
3. State income tax. Most states follow the federal exclusion, but a few have their own rules. The Servicemembers Civil Relief Act (SCRA) generally protects you from taxation by a state other than your domicile while on active duty, regardless of combat zone status.

Steps to verify your exclusion is applied correctly

1. Review your Leave and Earnings Statement (LES) each month during deployment. The "Tax Exempt" block should show "CZTE" or a similar indicator.
2. At year-end, check your W-2. Box 1 (Wages) should not include the excluded combat zone pay. Box 12 with code Q shows the nontaxable combat pay amount.
3. If the exclusion was not applied or was applied incorrectly, contact your military finance office immediately. Corrections can be made retroactively, but it is easier to fix before the W-2 is finalized.
4. If you file after the extended deadline expires, standard penalties and interest apply. Track your qualifying dates carefully.

For more on how military pay is taxed after you retire, see our guides on military retirement pay tax and VA disability tax treatment. Active-duty service members can also use the military pay calculator to model take-home pay scenarios.