Month-end VAT: pay or credit balance?
If you issue and receive VAT invoices, a simple monthly close is:
- Output VAT (débito): VAT on taxable sales
- Input VAT (crédito): VAT on taxable purchases
- Amount to pay or credit balance = the difference
Model formula
Debit = taxable sales × 12% Credit = taxable purchases × 12% If debit is greater than credit, you pay the difference. If credit is greater, credit balance (simplified model).
What this version does NOT model
- Exemptions and partial exemptions
- Exports and special regimes
- VAT withholdings at source
- Complex credit proration
Those need an accountant or your full sales/purchase books.
Example
Taxable sales Q100,000 → debit Q12,000
Taxable purchases Q40,000 → credit Q4,800
Amount to pay ≈ Q7,200 at 12% in the model.
Related calculators
YMYL notice
Educational estimate (VAT law / 12% model). Not accounting advice or an official filing. July 2026.
FAQ
If the UI allows it, yes; the model default is the general 12%.
Do not assume that. SAT rules and procedures apply; this tool only shows the month's arithmetic difference.