The combat zone tax exclusion and the 2026 officer cap

Which months qualify

A combat zone is an area the President designates by executive order; Congress can also designate qualified hazardous duty areas that are treated the same way (26 U.S.C. 112(c)(2); FMR 7A, ch. 44, 2.3.1). The FMR prints the lists as of its October 2024 date and points to online tables for the current combat zones, qualified hazardous duty areas and direct support areas.

The key rule is about time. IRS Publication 3 puts it plainly: if you serve in a combat zone “for any part of 1 or more days during a particular month,” you get the exclusion for that entire month. So a single qualifying day in March makes all of March’s military pay eligible.

Publication 3 and the FMR list the ways a month qualifies:

1. Service in the zone. You’re assigned on official temporary duty to a combat zone, or you qualify for hostile fire or imminent danger pay while you’re in one. Time away from duty for sickness, wounds or leave still counts.
2. Direct support. You serve outside the zone, DoD has designated the service as direct support of operations in the zone, and you qualify for hostile fire or imminent danger pay because of it.
3. Airspace. You’re assigned to perform duty in the zone’s airspace, or you qualify for hostile fire pay (HFP) or imminent danger pay (IDP) from the flight. Simply flying over on a trip between two points outside the zone doesn’t count (FMR 2.3.2.4 has three examples).
4. Hospitalization. You’re hospitalized for wounds, disease or injury incurred while serving in the zone, for months that begin no more than two years after combat activities there end.

Retirement pay and pensions never qualify (26 U.S.C. 112(c)(4)).

Enlisted members and warrant officers: all military pay

For an enlisted member, the statute excludes compensation for active service for any month during any part of which you served in a combat zone (112(a)). Warrant officers get the same treatment: the FMR’s rule covers all compensation of enlisted members and warrant officers for a qualifying month (ch. 44, 2.2.1.1), and the tax code’s definition of a commissioned officer leaves out commissioned warrant officers (112(c)(1)). Publication 3 says the same: none of their combat zone pay is included in income.

What counts as pay for a qualifying month goes beyond basic pay. Publication 3 lists, among others, hostile fire or imminent danger pay and other special pays, a reenlistment bonus if you reenlist or extend in a month you served in a combat zone, and pay for accrued leave earned in such a month. Allowances such as the Basic Allowance for Housing (BAH), the Basic Allowance for Subsistence (BAS) and the family separation allowance are excluded from gross income anyway, combat zone or not (Publication 3, Table 2; FMR Table 44-4, rule 15).

Commissioned officers: the monthly cap

For commissioned officers, the exclusion stops at the “maximum enlisted amount” for the month (112(b)). The statute defines it as the sum of two things (112(c)(5)):

• the highest rate of basic pay payable that month to any enlisted member at the top enlisted grade, and
• the hostile fire or imminent danger pay payable to that officer for the month.

DoD reads it the same way. The FMR sets the maximum at the basic pay of the senior enlisted member plus the HFP or IDP actually payable to the officer (ch. 44, 2.2.1.2), and the 2026 officer pay table of the Defense Finance and Accounting Service (DFAS) repeats the rule in its note 2 with the $225 figure that applied until September 30, 2026.

The senior enlisted members — the Senior Enlisted Advisor to the Chairman and the top enlisted leaders of each service — draw $11,166.90 a month in 2026 regardless of years of service, according to DFAS’s enlisted table. Hostile fire pay rose from $225 to $450 a month, and imminent danger pay from $225 to $275 ($9.16 a day), on October 1, 2026 (memo of the Office of the Assistant Secretary of War, signed July 14, 2026). Adding a full month of HFP gives the cap from October 2026:

$11,166.90 + $450.00 = $11,616.90 a month.

With a full month of IDP instead, it is $11,166.90 + $275.00 = $11,441.90. From January through September 2026, with $225 of HFP or IDP, it was $11,391.90. DoD and the IRS don’t print a 2026 total; these sums are our arithmetic on their figures. Publication 3 shows the same method for 2025 in whole dollars: $10,758 + $225 = $10,983 a month.

Because the HFP or IDP part is what the officer actually receives, the cap moves with it. An officer with one day of IDP in a qualifying October 2026 month ($9.16) has a cap of $11,176.06; an officer with no HFP or IDP that month has a cap of $11,166.90.

Worked examples for October 2026

All five members below had a qualifying month with HFP or a full month of IDP. Basic pay is from the 2026 tables; the excluded and taxable amounts come from the deployment pay calculator on this site.

The O-3 is under the cap, so the whole month is excluded exactly as for the enlisted member. The O-5 and O-6 hit it: the part above $11,616.90 stays taxable wages. (The amount not excluded is the same as before October: the HFP increase raised their pay and the cap by the same $225.) Any other military pay an officer receives for the month counts toward the same cap.

What we don’t compute: the tax you save

The excluded amount isn’t the same as tax saved. The saving depends on your filing status, your other income, your deductions and credits, and your state — so neither our calculator nor this guide puts a dollar figure on it. Two practical points from Publication 3: excluded pay shouldn’t appear in box 1 of your Form W-2 (if it does, ask your finance office for a corrected W-2), and you may choose to count nontaxable combat pay as earned income for the earned income credit. Whether that choice helps you is a question for a tax professional or the free MilTax service through Military OneSource.

The TSP in a combat zone month

Tax-exempt combat zone pay can go into the Thrift Savings Plan, with three rules worth knowing for 2026:

• The $24,500 elective deferral limit doesn’t apply to traditional contributions from combat zone pay, according to tsp.gov. Those contributions count instead toward the annual additions limit, which IRS Notice 2025-67 sets at $72,000 for 2026, together with your own contributions and the service’s automatic and matching contributions (catch-up contributions don’t count toward it).
• Catch-up contributions made from tax-exempt combat zone pay must be Roth, whatever your income (tsp.gov).
• When traditional money that came from tax-exempt pay is withdrawn later, that part isn’t taxed but its earnings are (Publication 3).

The full TSP picture, including catch-ups and the Blended Retirement System (BRS) match, is in TSP 2026 for service members.

Next step

Tick “combat zone” in the deployment pay calculator to see your month’s excluded amount and, for officers, the part above the cap. For what a deployment adds to your pay in the first place, read deployment pay in 2026.

This is general information, not tax or legal advice. Your finance office applies the exclusion to your pay; a tax professional or MilTax can help with your return.