Taxable income

Japan
Domestic
Taxable income of a domestic corporation is equal to all gross income less applicable deductions.
Foreign
The scope of taxable income for a foreign corporation depends on the existence of its permanent establishment in Japan. If a foreign corporation does not have a permanent establishment in Japan, the tax liability of the foreign corporation is usually settled solely through a withholding tax. Under Japanese tax laws, if a foreign corporation has a permanent establishment in Japan, corporate tax is imposed on its income derived from sources in Japan, such as the taxable income of a domestic corporation. However, tax treaties may exempt a foreign corporation from taxation on industrial or commercial profits earned in Japan to the extent that the income is not attributable to its permanent establishment in Japan.