Furusato Nozei Calculator (US Persons)

Estimate how much you can donate to furusato nozei while still getting the full Japanese tax credit — then see what it actually means for a US person, including the Foreign Tax Credit catch that the Japanese calculators don't cover.

1 · Estimate your donation limit

Annual salary income (給与収入), in yen Gross pay before deductions (総支給額 for the year). Household Dependents you claim (age 16+) Children under 16 don't count; college-age (19–22) give a bigger break, so your real limit may be a little higher.

Estimated donation limit ¥0

Enter your income to estimate the ceiling where everything above ¥2,000 is still credited.

2 · What it means for you

Donation amount, in yen Defaults to your estimated limit; change it to model a different amount. Do you have Japanese tax to spare for the US Foreign Tax Credit?

Weighing the US side? Taigan Bridge can help

Whether furusato nozei is worth it for you hinges on your FEIE-vs-Foreign-Tax-Credit position. Taigan Bridge's Tax Coordinator helps you work through that decision, tracks the furusato nozei deadline alongside your other US and Japanese filing dates, and keeps the whole cross-border picture in one place — with your own Claude API key, entirely on your device.

Open Taigan Bridge →

🔒 Everything runs in your browser — there's no network request at all. Nothing you enter is saved or sent anywhere; refreshing the page clears it.

How to read this

The limit is an estimate using the official method (it assumes social-insurance premiums of about 15% of income). Your real ceiling shifts with your actual deductions — donate a little under the estimate, and confirm with an official simulator like ふるさとチョイス or さとふる before you give.
It only helps if you actually pay Japanese resident and income tax. SOFA-exempt or near-zero-tax filers get no benefit.
It is not a US charitable deduction — a donation to a Japanese municipality isn't deductible on your US return.
The gift is capped by rule at about 30% of the donation.