Japan’s ¥200,000 side-income rule
When side income makes a salaried employee file — and why it is income after expenses, not revenue.
A salaried employee with one withholding-covered job generally must file a national return when income other than employment and retirement exceeds ¥200,000 — measured after related expenses, not as gross revenue, and even below it a resident-tax declaration may still be required.
Effective: 2026-01-01 to 2026-12-31
Professional review pending — treat as draft and confirm with the authorities.
Key points
- The test is income after related expenses, not gross revenue.
- It applies to an employee whose salary is fully covered by one employer’s withholding.
- Exactly ¥200,000 does not trigger it — the rule is “exceeds” ¥200,000.
- The ¥200,000 income-tax relief does NOT remove the resident-tax reporting obligation.
Income, not revenue
The rule looks at income after allowable related expenses. If you earn ¥300,000 of affiliate revenue and incur ¥80,000 of directly related platform and advertising costs, your income is ¥220,000 — over the threshold, so a return is due. Cut expenses so income is exactly ¥200,000 and that particular salary-side-income trigger is not exceeded, but you must still check other filing triggers and your municipality’s resident-tax rules.
The resident-tax catch
The ¥200,000 rule is a national income-tax convenience, not a tax exemption. Municipalities generally still expect you to declare that side income for resident-tax purposes even when no national return is required. Skipping it is a common and avoidable mistake — file the resident-tax declaration with your city if you are under the national threshold.
Who this is for
- Employees with a side gig, affiliate, or freelance income
- Creators and platform sellers
What this is not
- Full-time freelancers (different rules)
- Two-employer situations (separate test)
- Income left in a platform wallet is still earned; the threshold is about income earned, not money withdrawn to your bank.
Frequently asked questions
Do I need to file a tax return in Japan?
Many employees do not, because tax is settled by year-end adjustment (年末調整). You generally must file (確定申告) if you have side income over ¥200,000, two or more employers, self-employment income, sizeable investment or crypto gains, or you want to claim deductions like large medical costs or a first-year mortgage credit. Filing season is Feb 16 – Mar 15 via e-Tax. When unsure, check the NTA guidance or ask a 税理士.