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Closing the month, minus the sampling — the documents, the tolerance, and the matcher behind them.

the-close// August 15, 2026

Sampling is the control you think you have

Checking a portion of the bills and extrapolating is a reasonable answer to a time problem. It is not a control, and the difference shows up in exactly the cases it was meant to catch.

tolerance// August 15, 2026

What a variance tolerance should actually be

A percentage alone clears $1,800 on a large bill. A cash ceiling alone clears an 83% error on a small one. Both bands have to hold, and the tighter one binds.

rails// August 15, 2026

Why you cannot run a three-way match in QuickBooks Online

A three-way match needs three documents. QuickBooks Online has two of them, Xero has two of them, and the one both are missing is the same one.