Who knew al Qaeda had to file expenses?

More than 100 receipts and ­invoices discovered in a building occupied by al Qaeda’s North African branch in Timbuktu, Mali, show that it documented even the most minor expenses — apparently to satisfy terrorist accountants.

The paperwork includes receipts for the equivalent of 40 cents worth of tomatoes and a 60 cents for light bulb to $52 worth of sugar and $48 to repair a car.

The documents show that al Qaeda fighters made frequent trips to hardware stores to buy ­everything from bags of cement to parts for a new shower and tubes of superglue.

One receipt, titled “Repairs to Cheikh Abou Youssouf’s House,” listed $58.40 in expenses.

The terror group carefully ­recorded how much it spent on advances to its fighters.

Others on the payroll include “someone who works in the tent” and was paid $40, and two lowly security guards who got advances of just $1 and $2.40 apiece.