ZATCA VAT Monthly Return — Calculator

Upload Sales, Purchases, Notes_CDN, Adjustment, Prepayment. Compute Boxes 1–16 and export.

From company policy. Default 100%.

Enter prior-period input credit (if any).

Sales_Input
Upload .xlsx/.xls/.csv (first worksheet is read)
Purchase_Input
Upload .xlsx/.xls/.csv (first worksheet is read)
Notes_CDN (optional)
Credit/Debit notes — sales & purchases
Adjustment (optional)
Manual adjustments by box
Prepayment (optional)
Affects boxes only if Tax Point? = Yes
Drag & drop your CSV/XLSX files here (or use the buttons above)
Security hardening: CSP, no inline scripts/styles, no eval, third-party restricted to SheetJS. Open DevTools → Console for detailed file-parse errors if any.