Company employees usually don't file themselves — payroll withholding + year-end adjustment cover it. Filing is mainly for side income, medical deductions, home purchase, or freelance work.
- Income tax: withheld monthly by employer, reconciled at year-end
- Resident tax: based on prior-year income, deducted monthly from salary starting June
- Final filing: Feb 16 – Mar 15, can use e-Tax online
- Medical deduction: annual medical costs over ¥100k can be deducted (keep receipts)
- Furusato Nozei: donate to municipalities for tax credit + local specialty gifts