確かく定てい申しん告こく

noun

final tax return; tax filing

Refers specifically to the annual income tax return filed by individuals in Japan, typically in February–March. The broader glosses 'final declaration' or 'final report' are less common outside tax contexts.

• 今年ことしの確かく定てい申しん告こくはもう済すませましたか。

  Have you already filed your tax return for this year?

• 確かく定てい申しん告こくの期き限げんは3月がつ15日にちです。

  The deadline for filing a tax return is March 15th.