ATCUD / QR

Portugal's certified-software regime for invoice sequencing and reporting. Invopop issues compliant invoices through its certified partner InvoiceXpress (certification 192/AT), embeds the ATCUD and QR code, and produces the monthly SAF-T (PT) file.

Implementation docs

ATCUD and QR

The certified ATCUD code and QR appear on every invoice, payment, and delivery note, also available via API.

Certified partner

Invoices are issued through InvoiceXpress, Invopop's local partner holding Portuguese certification 192/AT.

SAF-T (PT)

Invopop automatically creates the monthly SAF-T file and can submit it to the AT on your behalf.

Real-time or monthly

Choose per supplier between web service submission and monthly portal upload.

Chained storage

Invoice records are linked together using a hash to meet legal sequencing requirements.

PDF

The universal visual invoice that works for any recipient. Invopop renders a branded, multilingual PDF from the same GOBL source, with every field the destination country requires, locale-correct formatting, and built-in email or webhook delivery.

Implementation docs

Every field, every format

PDFs include every field the destination country requires, automatically.

Localized in 10+ languages

Issue invoices in English, Spanish, German, Italian, Portuguese, Arabic, Greek, Polish, and more, with locale-correct date and number formatting.

Built-in email delivery

Invoices are emailed directly to clients from Invopop's domain or your own.

Invoices, credit notes and more

Produce standard invoices, proforma invoices, credit notes, corrective documents, and receipts.

Customisable templates

Templates support logo configuration, standard page layouts, and per-locale formatting.

Built on GOBL

Rendered from GOBL, the open-source invoicing standard, for full transparency and no vendor lock-in.