Estimator · Income and resident tax

Estimate your tax refund

Income tax and resident tax come out of every payslip in Japan. If you sent money home to family who live outside Japan, you can claim them as dependents and get part or all of that tax back.

Copy these three numbers off your Gensen slip *Not sure where these numbers are? Scroll down to the sample Gensen slip below and match the red numbers.
1 · Total income (給与収入) ¥ Box marked 支払金額. Your gross pay for the year.
2 · Social insurance (社会保険料控除) ¥ Box marked 社会保険料等の金額, bottom left of the slip.
3 · Income tax paid (所得税) ¥ Box marked 源泉徴収税額. This is the money that can come back to you.
Then tell us about your family
4 · Dependents living outside Japan you sent money to people Relatives within six degrees of kinship: parents, grandparents, brothers, sisters, children, in-laws. You need remittance records for each of them.
Your estimation
Income tax
Before · paid on your Gensen
→
After · what you really owe
Refunded to you
Resident tax
Before · no dependents declared
→
After · dependents claimed
Taken off your bill
Our fee for the tax claim
Total refund and estimation amount:
*Please note that this is an estimate only. For an exact calculation, please provide your withholding tax slip (Gensen-Choshu-Hyo).
Send my Gensen slip
Where to find the numbers

Read your Gensen slip

Your employer gives you the 源泉徴収票 at the end of the year or when you leave. The three numbers the calculator needs are printed in the top two rows and the bottom left box.

Sample Gensen Choshu Hyo with the input boxes numbered
  • 1 · 支払金額 is your total income for the year.
  • 4 · 源泉徴収税額 is the income tax you already paid. This is the amount that can be refunded.
  • 5 · 社会保険料等の金額 is your social insurance for the year.

Boxes 2 and 3 are worked out for you, so you do not need to type them in.

Why sending money home cuts your tax

Japan lets you deduct ¥380,000 of income tax base and ¥330,000 of resident tax base for every relative you support, even when that relative lives in another country. Most payroll offices never apply it, because you have to declare the family and prove the money left your account.

What counts as proof

  • Remittance receipts for the year, from a bank or a transfer service, in your name.
  • Birth certificates, marriage papers or a family book showing the relationship, translated into Japanese.
  • A passport copy for each dependent.

We can file back five years. If you never claimed your family while you worked here, those years are still open.

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