EU VAT Invoice Checker – Validate VAT Invoices Online

Portugal VAT Invoice Requirements

When issuing or receiving invoices in Portugal, it's essential to ensure all required fields are present and properly formatted. Our Check Portuguese VAT invoice online tool validates the following key invoice fields:

✓ Invoice Number: Unique identifier for each invoice
✓ Invoice Date: Date of invoice issuance in YYYY-MM-DD format
✓ Seller VAT ID: PT format VAT identification number (e.g., PT123456789)
✓ Buyer VAT ID: Customer's VAT identification number
✓ Description: Details of goods or services provided
✓ Net, VAT, and Total Amounts: Financial breakdown of the transaction

Use the validator below to check your Portugal VAT invoice for missing or invalid fields. All validation is performed client-side in your browser for maximum privacy and security.

Paste invoice text (optional)

Auto-detect fills the form below

Country

All 27 EU member states supported.

Invoice number *

Any unique identifier used on the invoice (e.g., INV-2025-001).

Date *

Use YYYY-MM-DD (e.g., 2025-12-15).

Seller VAT ID *

VAT ID for the seller. Usually includes country prefix (e.g., DE123456789). Example for PT: PT123456789.

Buyer VAT ID *

VAT ID for the buyer. Usually includes country prefix (e.g., DE987654321). Example for PT: PT123456789.

Description *

Short description of goods/services (what was sold).

Net amount *

Number (e.g., 1000 or 1000.00).

VAT amount *

Number (e.g., 190 or 190.00).

Total amount *

Number (should equal Net + VAT).

Frequently Asked Questions

What fields are required on a Portugal VAT invoice?

A valid Portugal VAT invoice must include: invoice number, invoice date, seller VAT ID, buyer VAT ID, description of goods/services, net amount, VAT amount, and total amount. The seller VAT ID must be in the correct PT format (e.g., PT123456789).

How do I validate a Portugal VAT number format?

Portugal VAT numbers follow the PT format. Our validator checks that your VAT ID matches the official pattern for Portugal. For example, a valid format would be: PT123456789. Simply enter your VAT number in the form above to verify it meets the requirements.

Is this VAT invoice checker free to use?

Yes, our Portugal VAT invoice checker is completely free to use. All validation is performed in your browser for maximum privacy and security. No registration or payment is required.

Does the validator send my invoice data to a server?

No. All validation is performed entirely in your web browser using JavaScript. Your invoice data never leaves your device, ensuring complete privacy and data security for your Portugal business transactions.