Filing Japanese Taxes in English

Filing in a Language You Didn't Grow Up With

Japan's 確定申告 (kakutei shinkoku, final income tax return) season runs mostly in Japanese, which is intimidating the first time you go through it as a foreign resident. The good news: the National Tax Agency (NTA) publishes real English-language material to help. The catch: "English support" mostly means English guides that walk you through a Japanese-language system, not a fully English filing experience. Knowing that distinction up front saves a lot of frustration. If you haven't confirmed you're even required to file, start with our guide on whether you need to file taxes in Japan.

What the NTA Actually Publishes in English

The NTA maintains a small but genuinely useful set of English resources, refreshed each filing season:

• An annual English-language income tax guide (published under titles like the "Income Tax and Special Income Tax for Reconstruction Guide" for the relevant tax year), which explains the return process, income categories, and common deductions in plain English.
• English "Tax Answer" reference pages covering specific situations, including No.12004 on the tax procedures involved when leaving Japan, and No.12006 on residency status and how non-residents are taxed.
• A multilingual step-by-step input manual — available in English as well as Chinese, Vietnamese, Portuguese, and Nepali — that walks you through the online 確定申告書等作成コーナー (Final Return Preparation Corner) screen by screen.

You can find the current versions through NTA's English-language portal and its English Tax Answer index.

The Honest Reality of e-Tax in English

Here's the part worth being direct about: the 確定申告書等作成コーナー and the broader e-Tax system are Japanese-language tools. The English input manual is a companion document — you keep it open in one window and work through the actual Japanese-language form in another, matching field labels and menu options as you go. There is no toggle that renders the live filing interface in English. Treat the written English guides as the real "English support," not the software itself.

Two Ways to Access e-Tax

If you're filing online rather than on paper, you'll need one of the following to authenticate:

• My Number Card (マイナンバーカード) read via NFC on a compatible smartphone, or with a USB IC card reader, plus your card's PIN.
• An ID and Password issued in person at a 税務署 (tax office), which serves as an alternative for people who don't want to set up card-based authentication.

Either route gets you into the same Japanese-language preparation corner described above.

Getting Help in Person

Your local 税務署 staffs help desks during filing season and can walk you through forms in person, though English ability varies office to office and wait times can be long in peak weeks. A few regional bureaus — the Nagoya bureau is a commonly cited example — maintain their own English-facing pages with local guidance. If your situation is straightforward, a visit to your local office paired with the English input manual is often enough.

A First-Time Filer's Checklist

Before you sit down to file, whether on paper or through e-Tax, gather the following:

• Your 源泉徴収票 (gensen chōshūhyō, withholding statement) from each employer that paid you during the tax year.
• Receipts or records supporting any deductions you plan to claim (medical expenses, insurance premiums, furusato nōzei donations, etc.).
• Your My Number (マイナンバー) for the return itself, and your My Number Card or tax-office-issued ID/password if filing via e-Tax.
• Bank account details in your own name, in case you're due a refund.
• A decision on paper filing versus e-Tax — paper is simpler conceptually but slower to process; e-Tax is faster once you're set up.
• The current English input manual open alongside the Japanese preparation corner, so you can match each screen as you go.

If you're newly self-employed or freelancing, our first-year freelancer tax guide covers the additional records you'll want on hand.

When a Checklist Stops Being Enough

English guides and input manuals are built for common, single-country situations. A handful of scenarios go beyond what any checklist can safely answer, and that's the point to involve a licensed 税理士 (zeirishi, tax accountant) or bring detailed questions directly to your 税務署:

• Claiming benefits under a tax treaty, including limitation-on-benefits (特典条項) provisions.
• Splitting income as a non-resident (非居住者) between Japan-source and foreign-source amounts.
• Questions about remittances as a non-permanent resident (非永住者), where what counts as taxable can hinge on timing and source.
• Foreign-asset reporting obligations (国外財産調書), which apply once qualifying overseas assets exceed roughly ¥50 million.
• The exit tax (国外転出時課税) that can apply to certain asset holders when leaving Japan — see our guide to taxes when leaving Japan for the basics.
• Any return where the numbers are large, the facts are ambiguous, or a mistake would be costly to unwind.

None of these are "fill in the boxes" situations, and getting them wrong can be expensive to fix later. A zeirishi who works with foreign clients can usually resolve in one conversation what would otherwise take weeks of cross-referencing English guides against a Japanese-language form.