Guide · Updated May 2026
Markdown exportVAT, reverse charge, and tax category problems
Each taxable amount needs the correct VAT category, and reverse charge invoices need extra VAT ID and exemption details.
What you may see
Use these points as the practical checks for this section.
- VAT category is required
- Tax category ID is missing
- Seller VAT ID is required
- Buyer VAT ID is required for reverse charge
- Reverse charge exemption reason is required
- Reverse charge tax rate must be zero
- Tax exemption reason is recommended
- VAT rate looks unusual
What this means
E-invoices need every taxable amount to be assigned to a VAT category. Reverse charge invoices need extra care because the VAT responsibility moves to the buyer.
What to check
Use these points as the practical checks for this section.
- VAT rate on every line
- VAT category or exemption reason
- Seller VAT ID
- Buyer VAT ID, especially for reverse charge
- Whether the invoice says reverse charge, tax exempt, intra-community supply, or similar