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Petty Cash, Tills, and Workshop Expenses: Internal Controls for UAE Garages

15 min read

Large fraud makes headlines; small drift kills workshops quietly. A few hundred dirhams a week in unlogged expenses, rounded invoices, or “just this once” cash purchases adds up to tens of thousands a year—often without anyone feeling dishonest. In the UAE VAT environment, sloppy expense documentation also creates filing friction and missed input claims.

This article outlines a sensible control stack for independent workshops: light enough that a twenty-bay operation can comply, strong enough that an owner sleeping poorly at 2 a.m. can trust the numbers.

Separate roles: who can spend, who can approve

One person should not both hold petty cash and approve their own vouchers. If you are small, rotate responsibility weekly so habits stay visible. Define thresholds: below X AED, a shift supervisor signs; above that, owner or accountant. Post the rules on the wall—confusion breeds exceptions.

Digital-first petty cash logs

Paper slips blow away in workshop fans. A phone photo of a receipt plus a one-line note in your workshop system beats a perfect paper system nobody uses. The goal is contemporaneous capture, not museum-grade filing.

GRX includes petty cash and expense flows alongside jobs and purchase—so a courier fee can be tied to a job number when relevant, and month-end review does not mean reconstructing April from a shoebox.

Till variances and card terminals

Reconcile card batches daily where volume warrants it. Investigate patterns: repeated small refunds, manual discounts, or voids after closing. Many variances are training issues, not theft—but you only learn that if you measure.

VAT treatment on mixed expenses

Not every supplier invoice is clean TRN-wise. Train staff to flag exempt or out-of-scope lines instead of forcing them into generic buckets. Your accountant will thank you, and your VAT return will reconcile faster.

For workshops considering an integrated stack, 250 AED/month + VAT (3,000 AED/year + VAT, yearly billing) until May 2026, then 600 AED/month + VAT (7,200 AED/year + VAT, yearly billing) on GRX covers sales, purchase, inventory, HR, and reporting in one subscription—so expense discipline becomes part of daily workflow instead of a monthly panic.