Where to file your Japan tax refund claim

You file a Japan tax refund through the National Tax Agency (NTA), which runs the country's income tax system. For most foreign visitors claiming VAT refunds on purchases, the process happens at the point of sale — not online — but if you're a resident or business owner with income tax overpayment, you'll use the NTA's online system called e-Tax.

The distinction matters: VAT refunds at shops use a separate merchant system and happen before you leave Japan. Income tax refunds use e-Tax and happen after the tax year ends. This guide covers the e-Tax route for income tax refunds, which is what most people mean when they search for "tax refund online" in Japan.

e-Tax is the only official online filing system run by the NTA. You cannot file income tax refunds through a private website or third-party service — the NTA system is the source.

Key Takeaways

  • Income tax refunds in Japan are filed through e-Tax, the National Tax Agency's online system, between early February and mid-March each year.
  • You need a personal identification number (My Number), a registered seal, and either a digital certificate or a My Number card with an IC chip reader to log in.
  • The filing process takes 20 to 40 minutes once you have your documents and login credentials ready.
  • Refunds typically arrive in your bank account within two to three weeks after the NTA processes your return, though timing varies by bank.
  • If you cannot use e-Tax, you can file a paper return at your local tax office, though this takes longer to process.

What you need before you start

Gather these documents before opening e-Tax: your My Number (the 12-digit personal identification number issued to all residents), your registered seal (inkan), proof of income for the year (pay stubs, 1099-equivalent forms, or business records), and records of any deductions you're claiming (medical expenses, donations, mortgage interest, etc.).

You also need one of two ways to log in. The first is a digital certificate, which you can obtain from a certification authority like Japan Post or a bank — this costs roughly ¥3,000 to ¥4,000 and takes a few days to issue. The second is a My Number card with an IC chip and a card reader device, which you can buy for ¥2,000 to ¥5,000 or borrow from some libraries and municipal offices.

If you don't have either, you can still file by paper at your local tax office, but the process is slower and you'll wait longer for your refund.

Step-by-step: Filing through e-Tax

Go to the NTA's e-Tax website (etax.nta.go.jp) and select "e-Tax software" or use the web version if you prefer not to download. Log in using your digital certificate or My Number card and reader. The system will ask you to enter your My Number and confirm your identity.

Once logged in, select "Create a new return" and choose the tax year you're filing for — this is usually the previous calendar year. The system will walk you through income entry: enter all sources of income (employment, self-employment, rental, interest, etc.) in the sections that apply to you.

Next, enter any deductions: medical expenses over ¥100,000, charitable donations, mortgage interest if you're a homeowner, or business expenses if you're self-employed. The system calculates your tax liability as you go. If the result shows you overpaid, that's your refund amount.

Review the summary, then submit. The system will generate a confirmation number. Write this down — you'll need it if you have questions later. The NTA will send you a processing notice by mail within two to three weeks.

Timeline from filing to receiving your money

The filing window opens in early February and closes in mid-March each year. If you file in early February, the NTA typically processes your return within two to three weeks. If you file closer to mid-March, processing may take longer because the office is busier.

Once the NTA approves your return, they send a notice by mail to your registered address. The refund itself is transferred to the bank account you listed on your return — this usually happens within one to two weeks after approval, though some banks take longer to post the deposit.

In total, expect four to six weeks from the date you file to the date the money appears in your account. Filing early in February gives you the fastest timeline.

If you don't have a digital certificate or My Number card

You can file a paper return instead. Go to your local tax office (tax office locations are listed on the NTA website by prefecture) and ask for the income tax return form. Fill it out by hand or print it from the NTA website, then bring it to the office along with your documents.

A staff member can help you fill it out if you're unsure, though they cannot advise you on tax strategy — only on how to complete the form correctly. Paper returns are processed in the order received, so if you file late in the season, you'll wait longer.

Paper refunds are mailed to you rather than deposited electronically, which adds another one to two weeks to the timeline.

What to do if your refund doesn't arrive

First, check your confirmation number and the processing notice the NTA sent you. It will show the refund amount and the expected deposit date. If that date has passed and the money hasn't arrived, contact your bank to confirm they received the transfer — sometimes a deposit is delayed on the bank's end, not the NTA's.

If your bank has no record of the transfer, contact the NTA using the phone number on your processing notice. Have your confirmation number, My Number, and the refund amount ready. The NTA can check the status of your return and tell you whether the transfer was sent and when.

If there's an error in your return — you listed the wrong income amount or missed a deduction — you can file an amended return (called a "correction return" or shusei shinokoku) through e-Tax using the same process. The NTA will recalculate your refund and send you the difference if you're owed more.

Special cases: Non-residents and foreign workers

If you worked in Japan but left the country, you can still file a refund return. You'll need to file by mail or through a representative in Japan — you cannot use e-Tax from outside the country. Contact the NTA or a tax accountant (zeirishi) to arrange this.

Foreign workers on work visas who paid income tax can file refunds the same way as residents. You need a My Number to use e-Tax; if you don't have one, ask your employer or local municipal office to help you register.

If you're a temporary resident (on a tourist or short-term visa), you generally cannot file an income tax refund because you're not considered a tax resident. However, you may be able to claim a VAT refund on purchases at the point of sale — that's a separate process handled by shops, not the NTA.

Frequently Asked Questions

Can I file my Japan tax refund from outside the country?

No, e-Tax requires you to be in Japan and to log in with a digital certificate or My Number card and reader. If you've left Japan, you can file by mail or hire a tax accountant (zeirishi) to file on your behalf. Some accountants offer this service for a fee of ¥5,000 to ¥20,000 depending on complexity.

How long does it take to get a digital certificate?

A digital certificate typically takes three to five business days to issue after you apply. Japan Post and major banks both offer them. You'll need to visit in person with your My Number and registered seal. Plan ahead if you want to file early in the season.

What if I made a mistake on my return after I filed?

You can file a correction return (shusei shinokoku) through e-Tax anytime after you file the original. The NTA will recalculate your tax and send you an adjusted refund if you're owed more, or a bill if you owe more. There's no penalty for correcting a mistake as long as you file before the NTA contacts you.

Do I have to file online, or can I always use paper?

Paper filing is always an option. You can bring your return to your local tax office or mail it. Paper returns take longer to process — usually four to eight weeks instead of two to three — but the result is the same. Choose based on your timeline and comfort with technology.

Will my refund be deposited to a Japanese bank account only?

Yes, the NTA deposits refunds only to a Japanese bank account in your name. If you're leaving Japan, arrange the deposit before you go, or file a paper return and have it mailed to an address in Japan where someone can collect it for you.