The process of closing a company's accounts for a period, determining financial results, and reporting them (e.g., preparing financial statements).
会社は年度末に決算を行い、決算書を作成する。
The company closes its accounts at the end of the fiscal year and prepares the financial statements.
四半期決算の結果、今年は赤字が出たと発表された。
They announced that the quarterly financial results showed a deficit this year.
決算報告を監査してもらい、税務申告を準備した。
We had the financial statements audited and prepared the tax filing.