Guides · 2026-08-28 · 8 min
A Stripe invoice or receipt records the charge, but it does not automatically replace a Portuguese fiscal invoice. The transaction must be documented through a method accepted in Portugal, with sequential numbering, mandatory invoice details and, where applicable, an ATCUD, QR code and communication to the Tax Authority.
Read guide: stripe, invoices, portugal, atcud, saf-t.
Guides · 2026-08-28 · 9 min
In 2026, Portugal's invoice-reporting, periodic VAT return, payment and IES deadlines vary by month and filing regime. This calendar compiles the dates published by the Tax Authority, distinguishes invoice reporting from accounting SAF-T, and identifies the administrative extensions already included in the official schedule.
Read guide: saf-t, deadlines, invoices, vat, 2026.
Guides · 2026-08-28 · 8 min
An invoice can be issued without a NIF when the consumer does not request it. Learn the rules, simplified invoice limits, and Stripe Checkout setup.
Read guide: invoices, nif, stripe, checkout, e-fatura.
Guides · 2026-08-28 · 8 min
The ATCUD identifies the fiscal document series and number, while the QR code contains data defined by the Portuguese Tax Authority. Learn how they are created, when they became mandatory, and why a Stripe receipt does not include them.
Read guide: atcud, qr code, invoices, portugal, stripe.
Guides · 2026-08-28 · 9 min
Portugal e-invoicing rules in 2026: B2G deadlines, CIUS-PT, PDF treatment through 2026, accounting SAF-T from 2027, and the current B2B position.
Read guide: e-invoicing, B2G, CIUS-PT, SAF-T, Portugal.
Guides · 2026-08-28 · 9 min
How to handle VAT on digital services sold through Stripe to Portuguese customers, EU businesses and consumers, and non-EU customers, including reverse charge, VIES, the EUR 10,000 threshold, and OSS.
Read guide: vat, digital services, reverse charge, VIES, OSS.
Guides · 2026-08-28 · 8 min
How self-billing works with online payments: written agreement, supplier acceptance, invoice wording, and reporting to the Portuguese Tax Authority.
Read guide: self-billing, vat, online payments, marketplaces, invoices.
Guides · 2026-08-28 · 9 min
Portugal SAF-T requirements: billing and accounting files, structure 1.04_01, 2026 deadlines, validation, and missed Stripe invoices.
Read guide: SAF-T, invoicing, accounting, deadlines, Portugal.
Guides · 2026-08-28 · 8 min
A Portuguese invoice needs mandatory tax fields, sequential numbering and, where applicable, ATCUD, a QR code and certified software. Use this checklist.
Read guide: invoices, NIF, ATCUD, QR code, certified software.
Guides · 2026-08-28 · 8 min
Claude can query TOConline documents, customers, account status, and PDF links through MCP with read-only, revocable OAuth access.
Read guide: Claude, accounting, TOConline, MCP, invoices.
Tutorials · 2026-02-20 · 8 min
Step-by-step guide to connecting Stripe to TOConline or InvoiceXpress and issuing Portuguese invoices without copying payments by hand.
Read guide: stripe, invoicing, automation, portugal, toconline.
Comparisons · 2026-02-18 · 8 min
A comparison of 2026 published prices, APIs, FT and FR drafts, SAF-T, accountant access, and multi-company management in TOConline and InvoiceXpress.
Read guide: toconline, invoicexpress, stripe, pricing, api.
Tutorials · 2026-02-10 · 9 min
Stripe is available to businesses in Portugal, accepts cards, MB WAY and Multibanco, and can collect business tax identifiers in Checkout. Before enabling each method, compare its cost, confirmation time and limitations, then prepare the Portuguese fiscal invoice that must follow the payment.
Read guide: stripe, portugal, payments, setup.
Guides · 2026-02-08 · 7 min
What SAF-T (PT) contains, how billing and accounting files differ, and how to validate and reconcile an export.
Read guide: saf-t, tax-authority, taxation, export, accounting.
Tutorials · 2026-02-05 · 8 min
How to reconcile Stripe refunds with Portuguese credit notes, including partial refunds, disputes, and the link to the original invoice.
Read guide: credit notes, refunds, stripe, invoicing, compliance.
Technical · 2026-01-30 · 8 min
How to process Stripe webhooks for Portuguese invoicing without duplicate documents: signatures, idempotency, event ordering, and Stripe Connect.
Read guide: webhooks, stripe, api, automation, integration.