Pay & Entitlements
CZTE Calculator
IRS Pub 3 · 2026Combat Zone Tax Exclusion — how much of your deployment pay is federal-tax-free, and what that's worth.
Tax-free pay · 9 months in zone
$33,525
Basic pay + HFP/IDP excluded from federal gross income
Federal tax you don't pay
$4,023
at your 12% marginal rate
Monthly excluded
$3,500.00
Authority
26 U.S.C. § 112 · IRS Pub 3
Your deployment
Enlisted and warrant officers exclude ALL basic pay for qualifying months.
Find yours on the 2026 pay table.
One qualifying day excludes the entire month.
Reenlist in a combat zone and the bonus is tax-free for enlisted members.
Most states follow the federal exclusion for combat pay.
How the exclusion works
Automatic via DFAS
When your unit reports you in a designated combat zone, DFAS stops withholding federal income tax for qualifying months — no form to file. Your W-2 Box 1 wages drop; the excluded amount shows in Box 12 (code Q).
One day = whole month
Any single qualifying day in the zone (including airspace overflights on duty) excludes that entire month’s basic pay.
Officer cap
Commissioned officers exclude up to $11,391.90/month in 2026 — the highest rate of enlisted basic pay (the senior enlisted member rate, $11,166.90) plus $225 HFP/IDP. Pay above the cap remains taxable.
Social Security & Medicare still apply
CZTE excludes federal income tax only. FICA (6.2% + 1.45%) is still withheld on the full amount.
TSP supercharge
Contributions from excluded pay are "tax-exempt contributions" — in a combat zone you can contribute beyond the elective deferral limit, up to the $72,000 annual additions limit (2026). Traditional tax-exempt money comes out tax-free at the contribution level; Roth from a CZ is tax-free in AND out.
Stacking deployment money
CZTE is one layer. Add HFP/IDP, HDP, FSA, and the 10% Savings Deposit Program for the full picture — the Deployment Pay Calculator stacks all of them, and the SDP Calculator compounds the guaranteed 10%.
Field notes
The month rule, the officer cap, and the TSP move most people miss
The Combat Zone Tax Exclusion is authorized by 26 U.S.C. § 112 and administered through IRS Publication 3, the Armed Forces' Tax Guide. For enlisted members and warrant officers, the rule is absolute: every dollar of basic pay for a qualifying month is excluded from federal gross income. For commissioned officers, the exclusion is capped each month at the highest rate of enlisted basic pay — the senior enlisted member rate ($11,166.90 in 2026), not an E-9 table cell — plus the $225 hostile fire / imminent danger pay: $11,391.90 per month for 2026.
The one-day rule cuts both ways. A single qualifying day in the zone excludes the whole month — so crossing into designated airspace on the 31st buys the entire month tax-free. Watch the departure month the same way: leaving on the 1st still excludes that month.
Reenlisting in the zone is the classic move: an SRB paid while serving in a designated combat zone is excluded from income for enlisted members. On a $40,000 bonus at a 22% marginal rate, signing the paperwork in-zone instead of at home station is worth $8,800 in federal tax alone.
The TSP angle: excluded pay can still go into the TSP as tax-exempt contributions, and in a combat zone year the ceiling isn't the elective deferral limit ($24,500 for 2026) but the annual additions limit ($72,000 for 2026). Traditional contributions from excluded pay come out tax-free at the contribution level (earnings are taxed); Roth contributions from a combat zone are the rare double win: never taxed going in, never taxed coming out.
Authorities: 26 U.S.C. § 112; IRS Publication 3 (Armed Forces' Tax Guide); 37 U.S.C. § 310 (HFP/IDP); 2026 officer cap = the senior enlisted member basic pay rate from the DFAS 2026 pay table notes ($11,166.90) + $225 HFP. Estimates only — confirm your specific months with finance and your tax professional.
FAQ
CZTE — frequently asked questions
- Is all military pay tax-free in a combat zone?
- For enlisted members and warrant officers, all basic pay for any qualifying month is excluded from federal income tax under 26 U.S.C. § 112. Commissioned officers are capped at the highest rate of enlisted basic pay (the senior enlisted member rate, $11,166.90/mo in 2026) plus $225 HFP — an officer cap of $11,391.90/month. Social Security and Medicare (FICA) taxes are still withheld, and special pays like HDP remain taxable — IRS Pub 3 excludes only the enumerated items (basic pay, HFP/IDP, reenlistment bonuses, accrued-leave pay, and a few others), and HDP is not among them.
- How many days in a combat zone make the month tax-free?
- One. A single qualifying day in a designated combat zone — including official duty in designated airspace — excludes the entire month's basic pay from federal income tax.
- Do I need to file anything to get CZTE?
- No. When your service reports your combat-zone service, DFAS stops federal withholding automatically for qualifying months. Your W-2 shows reduced Box 1 wages, with the excluded amount reported in Box 12 under code Q.
- Is my reenlistment bonus tax-free if I sign in a combat zone?
- Yes — for enlisted members, an SRB paid for a reenlistment that occurs in a month you served in a designated combat zone is excluded from federal income under § 112. On a $40,000 bonus at a 22% marginal rate, that is $8,800 of federal tax avoided.
- Does CZTE change my TSP contribution limits?
- Yes. Contributions from combat-zone pay are "tax-exempt contributions," and in a CZTE year you can contribute past the elective deferral limit ($24,500 for 2026) up to the annual additions limit ($72,000 for 2026). Roth contributions made from combat-zone pay are never taxed going in or coming out.
Keep going
Deployment money, end to end
REF: IRS Pub 3, effective TY2026
26 U.S.C. § 112 + IRS Publication 3 (Armed Forces' Tax Guide)
Results are estimates. Always verify with your finance office.
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