Resident Tax for First-Year Residents in Japan: The Bill Nobody Warns You About

Last reviewed: September 2026

If you move to Japan and start working, your first full year usually feels fine — your paycheck reflects income tax and social insurance deductions, and that's it. Then, sometime in your second year, a resident tax bill shows up (or a new payroll deduction line appears) that's larger than people expect. This isn't a mistake or a scam. It's how the system is designed, and it catches almost every new arrival off guard at least once.

The core rule: resident tax is billed a year late

Japan's resident tax (住民税, juuminzei) is calculated on your income from the previous calendar year (January–December), and the liability is fixed based on where you were registered as a resident on January 1. The bill for that liability doesn't arrive until the following fiscal year, starting around June.

Concretely, for a typical new arrival:

Year 1 (e.g. you arrive and start work in April 2026): You earn income all year. No resident tax is deducted from your paycheck yet, because you had no prior-year Japan income to be taxed on.
Year 2 (from June 2027): Resident tax based on your 2026 income kicks in — either as a lump-sum bill (if you're not on employer payroll withholding for it) or as a new deduction line on your payslip starting around June, continuing through the following May.

The result: your take-home pay in year 2 drops compared to year 1, for income you already earned and already budgeted around. This is the single most common source of "why is my paycheck suddenly smaller" confusion among first-year residents.

How much are we talking about

Resident tax is a flat 10% of your taxable income (roughly 6% municipal + 4% prefectural, varies slightly by municipality), plus a small flat per-capita levy of about ¥5,000/year. It uses its own deduction structure — notably a basic deduction of ¥430,000, which is different from the basic deduction used for national income tax. For a rough sense of scale: someone with taxable income (after deductions) of ¥3,000,000 is looking at roughly ¥300,000–¥305,000 in annual resident tax, i.e. around ¥25,000/month once it starts being withheld.

Two ways it gets collected

If you're a company employee, your employer will typically switch you onto special collection (特別徴収) — resident tax is withheld directly from your paycheck in 12 installments from June to May. Most companies are required to do this for their employees.

If you're not on employer withholding (e.g. you were on a different arrangement, changed jobs, or are self-employed), you'll instead get a bill directly from your municipality for ordinary collection (普通徴収), usually split into four installments (June, August, October, January). These notices arrive by mail to your registered address — easy to miss if you've moved, or genuinely alarming if you didn't know it was coming.

The trap when you leave Japan

Because the tax is assessed based on the prior year's income, leaving Japan does not cancel a resident tax liability that's already been assessed. If you depart partway through the collection period, you're still on the hook for the remaining installments. Common outcomes:

Your employer may deduct the remaining year's resident tax from your final paychecks in a lump sum before you leave (this is common practice and legal).
If that doesn't fully cover it, or you've already left your job, you may need to appoint a tax representative (納税管理人) in Japan before departure, or arrange payment from abroad — unpaid resident tax doesn't just disappear, and it can complicate future visa applications if you ever return.

If you know your departure date in advance, it's worth confirming directly with your municipal tax office (市役所 / 区役所, tax section) how your specific remaining liability will be settled.

How to plan around it

Don't spend your full year-1 take-home pay as if it's your steady-state income. Mentally set aside roughly 10% of your gross for the resident tax bill that's coming in year 2.
Check your payslip from June of year 2 onward for a new 住民税 line — if it's not there and you haven't received a mailed bill either, follow up with your employer or municipal office rather than assuming you're exempt.
If you're planning to leave Japan, ask your municipal tax office about outstanding resident tax before you go, not after.