noun
consolidated monthly invoice; itemized invoice; statement of accounts
A business document that lists multiple transactions over a period, often used for monthly billing or account settlement.
月末に取引先から仕切書が届いた。
At the end of the month, we received a consolidated invoice from the supplier.
経理部は仕切書を確認して支払い処理を行います。
The accounting department checks the statement of accounts and processes the payment.
請求書 is a general invoice or bill requesting payment, while 仕切書 specifically refers to a consolidated or itemized statement summarizing multiple transactions.
明細書 is a detailed statement or specification sheet, often used for breakdowns of charges or technical specs, whereas 仕切書 is a billing document.
Compound of 仕切り (shikiri, 'partition, settlement') + 書 (sho, 'document'). The exact historical derivation is uncertain, but it is a conventional business term.