noun
accounting period; settlement period
Refers to the fiscal period for which a company closes its books and reports financial results. Commonly used in business and tax contexts.
当社の決算期は3月です。
Our company's accounting period ends in March.
決算期が近づくと経理部は忙しくなる。
The accounting department gets busy as the settlement period approaches.
会計年度 is the fiscal year, a broader concept; 決算期 is the specific closing period within that year.
Compound of 決算 (settlement of accounts) + 期 (period, time).