All individuals living and working in Japan are obligated to pay income tax (所得税: し ょ と く ぜ い). The amount of tax payable will depend on the annual income.
Income less than 130,000 yen / year will not be charged income tax.
Students, trainees and employees at a contracting company will have the tax deducted directly from their salaries. If you work for a company without a contract, you will have to self-declare tax and must file it by March 15 of the following fiscal year. If you pay taxes by bank transfer, the deadline is April.
Residence tax is the amount of money that people living in the city must pay to the local tax office to contribute to the maintenance of the local social-welfare services. Residence tax is a tax that every individual with income in a year over the limit (103,000 yen / year) must pay, regardless of whether you are a student, international students, or foreigners.
Residence tax is calculated based on the income of the previous year. Therefore, your first year in Japan you don’t have to pay for this tax. However, the following year, Tax authorities will rely on your income in the previous year to calculate the amount of tax you have to pay.