1. National Income Tax vs. Local Resident Tax
Income tax (所得税) is a national tax calculated on current-year income, whereas Resident tax (住民税) is a local municipal/prefectural tax calculated based on your prior calendar year income.
2. Salary Withholding and Year-End Adjustment (Nenmatsu Chousei)
For salaried employees, income tax is withheld monthly by the employer and settled through the Year-End Adjustment. However, individuals with high income, multiple income sources, or specific overseas remittances may need to file a Final Tax Return (確定申告).
3. Resident Tax Timing and the January 1 Address Rule
Resident tax for a given year is billed starting in June, based on the previous year's income. Your tax obligation is administered by the municipality where your address was legally registered on January 1 of that year.
4. Changing Jobs and Resident Tax Collection Methods
When leaving an employer, remaining resident tax installments may be collected in a lump sum from your final paycheck or switched to direct payment slips (ordinary collection) mailed to your address until your next employer resumes payroll deduction.
5. Tax Procedures Upon Leaving Japan and Tax Agent (Nofunin)
If departing Japan permanently mid-year or before resident tax billing cycles complete, you must settle remaining tax liabilities or officially designate a Tax Agent (納税管理人) with the relevant tax office and municipal tax desk.
6. Essential Tax Record Keeping for Foreign Residents
Retain all annual Withholding Tax Statements (源泉徴収票), municipal Resident Tax Decision Notices, tax payment receipts, and employer documents for your records and future administrative filings.
EDITORIAL NOTE & DRAFT STATUS
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