Note: This guide walks you through activating the new Portuguese invoicing system when your hotel migrates to it, from your migration date onwards. The change is being rolled out in phases — if you don't see the new invoicing in your account yet, it will be enabled soon.
Overview
On your migration date, Amenitiz moves your account to the new Portuguese invoicing system for you. To start issuing invoices, you then complete a one-time activation: register your hotel company with Invopop (our certified invoicing partner), connect your AT credentials, and confirm your company details in Amenitiz.
Before you start
Your hotel company needs its own unique email address — it's used to log in to the Invopop Supplier Portal, and the same email can't be linked to more than one hotel company.
You'll need your AT credentials from the Portal das Finanças (with the
WSEpermission andWFA, as your invoices are reported to the AT in real time). Most hoteliers already have these.Amenitiz moves your account to the new invoicing behind the scenes — there's nothing you need to do for that part.
Step by step
Register on the Invopop portal. Go to at-pt.invopop.com/portal/login, enter your hotel company's email address, and authenticate with the code sent to that address.
Connect your AT credentials. Enter and save the credentials from your Portal das Finanças. Most customers already have these — if you need to create them, follow Creating your AT credentials below.
Register a base name for each document series (see the base name rules below):
Fatura and Fatura-Recibo — use the same base name for both.
Recibo — must be unique.
Nota de Crédito — must be unique.
Simplified Invoice — must be unique.
Confirm your company details in Amenitiz. Go to
Invoices → Settings, fill in every field, then adjust your series:Número de registo da empresa — can be your VAT number without letters.
Conservatória do Registo Comercial — for example, "Conservatória do Registo Comercial de Lisboa"; if it doesn't apply, write "Não aplicável".
Capital Social — must be a number; if it doesn't apply, enter 0.
Make sure the series in Amenitiz match the ones in Invopop exactly.
Allow up to 24 hours. Base-name changes take effect at midnight local time. After that, your Portuguese invoicing is ready to use.
📌 Base name rules
Don't include the document prefix (FT, FR, etc.) — it's added automatically.
Letters, numbers and most special characters are allowed, but no spaces, forward slashes (/) or carets (^).
Don't create series for document types Amenitiz doesn't use (e.g. consignment, return, delivery note, waybill, debit note).
You can't choose the sequence numbers — in Portugal they're assigned automatically when each document is recorded.
Creating your AT credentials
If you don't already have AT credentials with the right permissions, create them in the Portal das Finanças:
Go to the AT Portal das Finanças.
Click Iniciar Sessão.
Authenticate using one of the available methods.
Go to Todos os Serviços → Autenticação de Contribuintes → Gestão de Utilizadores.
Click Criar Novo Utilizador.
Fill in the form.
Choose the required permissions:
WSE(allows series registration) andWFA(submits your invoices to the AT in real time).Click Submeter.
Store the username and password securely.
FAQs
Why does each hotel company need a unique email address?
Why does each hotel company need a unique email address?
The email address is used to log in to the Invopop Supplier Portal, and the same email can't be linked to more than one hotel company. If two of your properties share an email, contact us and we'll help you sort it out before you activate.
What are the WSE and WFA permissions?
What are the WSE and WFA permissions?
WSE lets your invoice series be registered with the AT. WFA is required because your invoices are reported to the AT in real time. You set both when creating your AT credentials in the Portal das Finanças.
How long until my invoicing is active?
How long until my invoicing is active?
Base-name changes take effect at midnight local time, so allow up to 24 hours after you register your series.
What if my series in Amenitiz don't match Invopop?
What if my series in Amenitiz don't match Invopop?
Your invoices may fail to issue. Check that each series base name in Amenitiz matches the one registered in Invopop exactly — same characters, no extra prefixes or spaces.