Pension and resident tax: two deductions that change take-home pay
Employee pension, resident tax, first-year tax shock, resignation timing, pension exemptions, and furusato nozei all affect monthly cash flow.
For employees in Japan, pension and resident tax are 2 of the biggest regular deductions. Employee pension is 9.15%, and resident tax is roughly 10% of taxable income from the previous year. With health insurance and income tax, take-home pay often becomes 70-80% of gross pay.
Deduction overview
For a single employee earning ¥4,000,000 per year, monthly deductions may include about ¥14,800 for health insurance, ¥30,500 for employee pension, ¥2,000 for employment insurance, ¥6,000-8,000 for income tax, and about ¥17,000 for resident tax.
With monthly gross pay around ¥333,000, take-home pay may be about ¥263,000, or about ¥3,158,000 per year. At ¥6,000,000 annual income, total deductions can reach roughly 23-25%.
The second-year tax drop
In the first year in Japan, many newcomers pay no resident tax because there was no previous-year income in Japan. With only pension, health insurance, and income tax, take-home may feel close to 86% of gross.
From June of the second year, resident tax begins. At ¥4,000,000 income, monthly take-home may fall by about ¥17,000. Saving ¥200,000-300,000 during the first year prevents a surprise.
Resident tax when leaving a job
If you resign from June to December, the remaining resident tax often switches to ordinary collection, paid by you in 4 installments. If you resign from January to May, the remaining tax may be collected from your final paycheck.
For someone paying ¥17,000 per month, leaving in April may cause the May amount to be taken from the final salary. The last take-home pay can be much smaller than expected.
Pension exemption and tax tools
If you cannot pay National Pension, apply for full, three-quarter, half, or one-quarter exemption or payment postponement. Students may use the student payment special system, and people under 50 may use postponement.
Apply at the municipal pension counter or pension office, and expect annual renewal. Payments can be made up within 10 years to restore future pension amount. Students may use the student payment special system when personal income is around JPY 1,330,000 or less.
Resident tax can become non-taxable or reduced at low income. Annual income around JPY 1,000,000 or less is often non-taxable, and around JPY 1,000,001 to 1,030,000 may leave only the per-capita levy depending on municipality.
Furusato nozei lets you redirect part of resident tax as donations with a JPY 2,000 effective self-payment, but amounts above your limit become pure donations. A single person earning JPY 4,000,000 may have a rough annual limit around JPY 40,000 to 50,000, so use Satofull or Rakuten Furusato Nozei calculators first.
Common mistakes
The second-year resident tax shock often reduces monthly take-home by ¥10,000-30,000 from June. Resigning between January and May can also make the final paycheck unexpectedly small.
If special collection is not continued after changing jobs, resident tax bills switch to ordinary collection. Ask the new HR team to handle the special-collection switch, otherwise you manage 4 separate bills yourself.
Ignoring pension bills is risky. It can reduce future pension rights and lump-sum withdrawal amounts. If you cannot pay, apply for exemption instead of leaving it unpaid. Foreign residents leaving Japan generally must apply for lump-sum withdrawal within 2 years, with coverage calculated up to 60 months.