Japan · 2025 (Reiwa 7)
Japan Income tax calculator
Estimate the tax taken from a salary in Japan for the 2025 tax year (Reiwa 7): national income tax plus the resident tax billed by your municipality. Enter an annual gross salary and the calculator builds both tax bases the way the National Tax Agency does, applying the employment income deduction, the deduction for social insurance premiums and the basic deduction before any rate touches your pay. Figures reflect an employee in Tokyo, under 40 and single, whose only income is salary. The premiums themselves are not charged here; for take-home pay including them, use the salary calculator.
| Employment incomesalary after the statutory employment income deduction | ￥3,560,000 |
| Deductible social insurance premiumsreduce both tax bases; not charged by this calculator | ￥732,750 |
| National income taxbrackets from 5% to 45% plus the 2.1% reconstruction surtax | 119600% |
| Resident tax10% levy less the adjustment credit, plus 5,000 yen per head | 242200% |
| Income after income tax | ￥4,638,200 |
How it works
- Salary is first converted into employment income by the statutory deduction (kyuyo shotoku kojo). At least 650,000 yen comes off, more as pay rises, until the deduction caps at 1,950,000 yen for salaries above 8.5 million yen.
- Deductible social insurance premiums are then estimated at Tokyo rates: 4.955% health, 9.15% pension and 0.55% employment insurance, with health premiums capped at 16.68 million yen of pay and pension premiums at 7.8 million yen. These reduce both tax bases but are not part of the tax shown.
- The national base subtracts the premiums and a basic deduction of 950,000 yen down to 580,000 yen depending on income (the 2025 amounts), then rounds down to the nearest 1,000 yen. Brackets from 5% to 45% apply via the quick-deduction table, and the 2.1% reconstruction surtax goes on before the result rounds down to the nearest 100 yen.
- The resident base uses its own 430,000 yen basic deduction and the same premium deduction. A flat 10% applies, the 2,500 yen adjustment credit comes off, and the 5,000 yen per-capita charge (1,000 yen of it the forest environment tax) goes on. Nothing is due while net income stays at or under 450,000 yen.
- The headline figure is the two taxes added together; the breakdown shows each on its own, so you can see how much goes to the state and how much to your city and prefecture.
income tax = national tax + resident tax, each charged on salary less the employment income deduction, deductible premiums and a basic deduction
Both taxes start from the same employment income figure. The national side removes deductible premiums and a basic deduction of up to 950,000 yen, taxes the remainder in seven brackets from 5% to 45% using the quick-deduction table, then multiplies by 1.021 for the reconstruction surtax. The resident side removes the premiums and 430,000 yen, charges a flat 10%, takes off the 2,500 yen adjustment credit and adds the 5,000 yen per-capita charge. Taxable bases round down to the nearest 1,000 yen and the national tax to the nearest 100 yen.
- 650,000 to 1,950,000
- employment income deduction taken off salary first, 2025 table
- 950,000 to 0
- national basic deduction, falling as income rises (580,000 for most full-time earners)
- 5% to 45%
- seven national brackets on taxable income, NTA quick-deduction table
- 1.021
- reconstruction surtax multiplier on national tax, in force to 2037
- 10% + 5,000
- resident tax levy and per-capita charge, less the 2,500 adjustment credit
When Japanese income tax starts to bite
| National tax first due | ≈ ¥1,600,000 salary | below this the deductions absorb everything |
| NTA average salary, 2024 | ¥4,780,000 | private-sector survey figure |
| 20% bracket begins | ¥3,300,000 taxable | about ¥6.7 million of gross salary on this profile |
| Top 45% bracket | ¥40,000,000 taxable | an effective 45.945% with the surtax |
Worked example
A ¥5,000,000 gross salary in Tokyo, 2025 carries ¥361,800 of tax in total: ¥119,600 national income tax and ¥242,200 resident tax. The ¥1,440,000 employment income deduction and ¥732,750 of deductible premiums hold the national taxable base down to ¥2,147,000, which lands in the 10% bracket.
Key facts
- Resident tax reaches far more people than national tax: it starts once net income passes 450,000 yen, against roughly 1.6 million yen of salary for the national side.
- Moving into a higher bracket taxes only the slice above the threshold; the quick-deduction table is a shortcut for the slice-by-slice sum, never a cliff.
- Both taxable bases round down to the nearest 1,000 yen and the national tax to the nearest 100 yen, so the statutory rounding always works in your favour.
- A mid-career Tokyo earner typically faces 20.42% national (20% with surtax) plus 10% resident, so about 30 yen of each extra 100 goes in income tax.
- Social insurance premiums are fully deductible, which means every extra yen of premium trims the tax bill at your marginal rate.
Tips
- A kakutei shinkoku (tax return) recovers tax that withholding misses: medical costs above 100,000 yen, the first year of a housing loan credit and casualty losses all need one.
- Furusato nozei redirects a slice of next year’s resident tax to a region of your choice for a flat 2,000 yen of your own money, within an income-based ceiling.
- Every yen paid into iDeCo lowers both tax bases, so the saving arrives at your combined marginal rate of roughly 15% to 56%.
- Hand in the autumn deduction declaration forms before the year-end adjustment; it is the easiest way to claim insurance and dependant reliefs without filing a return.
Frequently asked questions
Why are national income tax and resident tax shown together?+
Because both fall on the same salary. National tax is withheld through the year, while resident tax is assessed by your municipality on the previous year and collected from June. Adding them gives the full income tax cost of a steady salary, and the breakdown still lists each one separately.
Why enter gross salary rather than taxable income?+
Few people in Japan know their taxable income off-hand, because three deductions sit between it and the payslip figure: the employment income deduction, social insurance premiums and the basic deduction. The calculator derives all three from the gross amount using the 2025 tables.
What is the 2.1% reconstruction surtax?+
A supplement on national income tax introduced to fund rebuilding after the 2011 Tohoku earthquake. It has applied since 2013 and is scheduled to run until 2037, so 2.1% is added to the bracket result before the final rounding.
Will this match the tax on my payslip?+
Not month by month. Withholding follows monthly tables and is settled in the December year-end adjustment, so individual payslips drift around the true figure. The number here is the settled annual amount. Resident tax also lags by a year: what your employer deducts from June relates to the previous calendar year.
Does it matter where in Japan I live?+
A little. The 10% plus 5,000 yen resident tax structure is the standard that nearly every municipality applies, though a few prefectures add small supplements. Health insurance rates also vary by prefecture, which nudges the deductible premiums and with them the tax. This calculation uses Tokyo figures throughout.
Which reliefs are left out?+
Spouse and dependant deductions, life and earthquake insurance deductions, iDeCo contributions, the medical expenses deduction and housing loan credits. Each would lower the bill, so read the result as the figure for a single employee claiming only the basics.
Things to watch
- This is a planning estimate, not tax advice. Where a decision rests on the exact figure, confirm it with the National Tax Agency, your municipal tax office or a licensed tax accountant (zeirishi).
- The 880,000, 680,000 and 630,000 yen basic deduction tiers are temporary; from 2027, incomes between 1.32 million and 23.5 million yen revert to a 580,000 yen deduction.
- Premiums follow Kyokai Kenpo Tokyo rates for an employee under 40. A different prefecture, a kenpo union scheme or the care premium paid from age 40 to 64 changes the deductible amount and shifts both taxes a little.
- Salary is assumed to be the only income. Substantial side income, separately taxed investment gains or overseas income all change the outcome.
Sources
- No.2260 Income tax rates · National Tax Agency
- No.1410 Employment income deduction · National Tax Agency
- Revision of the basic deduction under the 2025 tax reform · National Tax Agency
- No.2507 Withholding of the reconstruction special income tax · National Tax Agency
- Personal inhabitant tax · Tokyo Bureau of Taxation
- Health insurance rates by prefecture, FY2025 · Kyokai Kenpo
- Employees’ pension insurance premiums · Japan Pension Service
- Employment insurance premium rates, FY2025 · Ministry of Health, Labour and Welfare
Last updated: 2025-04-01 · Applies to 2025 (Reiwa 7)
This is an estimate for general guidance, not financial, tax, legal or medical advice. Figures can change and individual circumstances vary. Always confirm with the official sources listed before making decisions.
- Computed on a Tokyo basis for an employee under 40, single, no dependants, with salary as the only income.
- Deductible premiums are estimated at 14.655% of pay with the statutory caps. Real payslips use standard-remuneration grades, so the bases can drift slightly either way.
- The 950,000 down to 580,000 yen basic deduction amounts follow the 2025 reform; the middle tiers of 880,000, 680,000 and 630,000 yen apply to 2025 and 2026 only.
- Income tax only. Social insurance premiums appear here purely as a deduction inside the tax bases; the salary calculator charges them and shows take-home pay.
Reviewed by Vikas Dulgunde.