US Tax Guide for Military & Contractors Living in Japan

Japan hosts a large number of American military personnel and defense contractors, particularly in Okinawa and the Tokyo area. Military members and contractors face unique US tax situations. FileAbroad helps Americans in Japan navigate FEIE, FBAR, and the cross-border questions that complicate filing.

Key Tax Issues for Military & Contractors in Japan

• Combat zone exclusion: If you serve in a designated combat zone, your military pay may be excluded from US income. Deployments from Japan to combat zones may qualify.
• FEIE for contractors: Defense contractors can claim FEIE on foreign earned income if they have a foreign tax home and meet the physical presence or bona fide residence test.
• State tax: Many military members maintain state residency in no-tax states (Texas, Florida). State tax rules for military are complex.
• Totalization agreement: US-Japan totalization agreement prevents double social security taxation for contractors.
• Japanese tax: If you are a Japanese tax resident, Japan taxes your worldwide income. FTC may be available.

FEIE vs FTC for Military & Contractors in Japan

FEIE is generally better for contractors with income below the FEIE limit. FTC is generally better for those with income above the limit or in high-tax situations (Japan's rates reach up to 45% plus 10% inhabitant tax).

FBAR & Reporting for Military & Contractors in Japan

Japanese bank accounts (MUFG, SMBC, Mizuho, Japan Post Bank) are reportable on FBAR. Military members and contractors often hold accounts in both the US and Japan.

Common Mistakes Military & Contractors Make in Japan

1. Not claiming combat zone exclusion — If you deployed to a combat zone, your pay may be excluded.
2. Not claiming FEIE — Contractors can claim FEIE on foreign earned income.
3. Not reporting Japanese bank accounts on FBAR — All foreign accounts are reportable.
4. Not understanding state tax rules — Military state residency rules are complex.

When to Get Professional Help

You should consider professional help if you have foreign accounts exceeding $10,000, combat zone questions, self-employment income, or complex income situations.

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FileAbroad explains U.S. federal tax and U.S. international information-reporting consequences of documented foreign facts. It does not provide foreign-country legal or tax representation, valuation opinions, banking or remittance advice, or advice on what a foreign authority will accept.

Scope statement reviewed 2026-08-30 · FileAbroad product/content owner