In Japan, freelancers are taxed on profit, not revenue. Subtract expenses and the Blue Return deduction to get business income, subtract the basic deduction (¥580,000 to ¥950,000 for tax years 2025 and 2026, depending on income) to get taxable income, then apply progressive income tax plus roughly 10% resident tax. Enter your numbers below for a rough annual figure.
Enter your revenue, expenses, and Blue Return deduction to estimate your combined national income tax and resident tax as a freelancer or sole proprietor (個人事業主) in Japan.
Japan Freelancer Estimated Tax Calculator
Estimate your income and resident tax as a freelancer or sole proprietor in Japan
* This is a simplified estimate reflecting only the basic deduction. For income tax that is ¥580,000–¥950,000 for tax years 2025 and 2026 depending on income; for resident tax it is unchanged at ¥430,000, so the two taxable bases differ. It excludes social insurance premium deductions, the enterprise tax, consumption tax, and National Health Insurance premiums.
How to Use
- Enter your annual revenue and annual business expenses.
- Select your Blue Return special deduction tier (¥650,000 / ¥550,000 / ¥100,000, or ¥0 for White Return).
- Click Calculate to see business income, taxable income, and estimated income tax and resident tax.
How the calculation works
Taxable income is business income minus the basic deduction, then Japan’s progressive national income tax brackets apply. The income tax basic deduction is ¥580,000–¥950,000 for tax years 2025 and 2026 depending on income, while the resident tax basic deduction was left unchanged at ¥430,000 — so the two taxes are calculated on different bases. Resident tax is approximated at a flat 10% of its own base.
Business income = revenue − expenses − Blue Return deduction
Income tax base = business income − basic deduction (¥580,000–¥950,000)
Resident tax base = business income − basic deduction (¥430,000)
Total estimated tax = income tax + resident tax (approx. 10%)
The order of operations
- Revenue − expenses − Blue Return deduction = business income
- Business income − basic deduction (¥580,000–¥950,000 income tax / ¥430,000 resident tax) = taxable income
- Taxable income × progressive rate + ~10% resident tax = estimated total
The two levers that move this most are expenses and the Blue Return deduction. Two freelancers with identical revenue can owe very different amounts depending on how well they handled these.
The Blue Return has three tiers
| Deduction | What it requires |
|---|---|
| ¥650,000 | Double-entry bookkeeping and electronic filing via e-Tax |
| ¥550,000 | Double-entry bookkeeping, filed on paper |
| ¥100,000 | Simplified bookkeeping |
What this estimate leaves out
Do not read the result as the total you will hand over. These are excluded:
- Enterprise tax — charged separately depending on your business category and income
- Consumption tax — a separate filing obligation once you become a taxable business
- National Health Insurance and National Pension — for many freelancers these rival the tax bill
- Deductions for social insurance premiums and dependants — not modelled, so your actual tax may be lower
So the tax itself will likely come in below this figure, while your total outgoings will be above it. When budgeting, set aside health insurance separately.
On the resident tax figure
Resident tax here is an approximation at a flat 10%. The real bill also includes a small flat per-capita levy and municipality-specific adjustments that are not modelled. It also arrives on a delay — billed the year after the income was earned, which catches people out in their second year.
Primary sources
Primary sources
This article is for general information only and is not tax or legal advice. Rules and rates change, and outcomes depend on individual circumstances. Consult your local tax office or a licensed tax professional before filing.
Frequently Asked Questions
Q. Who qualifies for the ¥650,000 Blue Return deduction?
A. You need double-entry bookkeeping with financial statements attached, plus e-Tax electronic filing (or qualifying electronic bookkeeping) — filing on paper without e-Tax caps the deduction at ¥550,000.
Q. What isn't included in this estimate?
A. The enterprise tax (事業税), consumption tax, National Health Insurance premiums, and social insurance premium deductions are all excluded from this simplified estimate.
Q. Is the resident tax figure exact?
A. No, it's an approximation. Actual resident tax includes a small flat per-capita levy and municipality-specific adjustments not modeled here.
Key Takeaways
- The Blue Return special deduction has three tiers: ¥650,000 / ¥550,000 / ¥100,000.
- The income tax basic deduction is ¥580,000–¥950,000 for 2025 and 2026 depending on income, while the resident tax basic deduction stays at ¥430,000.
- Enterprise tax, consumption tax, and National Health Insurance premiums are excluded.