A calm month-end starts before the month ends. The goal is simple: by the time you close, every transaction has a document and every payout has an explanation.
Start with your bank statement. Download it as soon as the month closes and check that the opening balance matches last month's closing balance.
Then collect your payment and sales reports. Salla, Zid, Tabby, and Tamara each report payouts differently, so keep each report next to the matching bank deposit.
Finally, list what is still missing — supplier invoices, receipts, unexplained transfers — and chase them once, in one message, rather than one by one.