Overview

Portuguese invoicing runs through Invopop, our certified invoicing partner. To start issuing invoices, you complete a one-time activation: register your hotel company with Invopop, connect your AT credentials, and confirm your company details in Amenitiz.

Prefer to watch? This short video walks through the activation. It’s narrated in Portuguese.

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 WSE permission and WFA, as your invoices are reported to the AT in real time). Most hoteliers already have these.
Activation doesn't start on its own — you start it in step 1 below.

Step by step

Go to Invoices → Settings, make sure each hotel company has a unique email address, then click Migrate to direct invoicing.
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.
- VAT regime must be selected to indicate if the company pays VAT when a sale is made or when cash is collected.
- Make sure the series in Amenitiz match the ones in Invopop exactly.

A série in Invopop has two parts: the document prefix (FT, FR, RG, NC, FS) and, after it, the base name. Amenitiz asks for the base name on its own — the prefix is added for you.

The base names below are examples only — yours will be different. Use the ones you registered in Invopop.

If in Invopop you registered	The field in Amenitiz	Type only
FT FRRFC	Invoice numbering sequence	FRRFC
FR FRRFC	Invoice numbering sequence — the same one	FRRFC
RG RFCR	Receipt numbering sequence	RFCR
NC RFCNC	Credit note numbering sequence	RFCNC
FS FRRC	Simplified invoice numbering sequence	FRRC

⚠️ Warning

Copy the base name only. If what you have typed contains a space or a forward slash, or ends in a document number, you have copied too much. A series registered in Invopop cannot be deleted, so check each field before you save.

📌 Base name rules

Don't include the document prefix (FT, FR, etc.) — it's added automatically.
A base name must start and end with a letter or number. Between them you can use a single full stop, hyphen, colon, slash, comma, underscore or space — nothing else, and never two in a row. FRRFC and FRR-FC are both fine; FRRFC- is not.
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 login page: acesso.gov.pt.
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) and WFA (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?

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?

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.

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.

I registered the wrong series in Invopop. Can I delete it?

No. A series registered in Invopop can't be deleted.

Register a new series for the same document type with the correct base name, then set that series in Amenitiz under Invoices → Settings. Series changes are processed at midnight local time, so the new one can take up to 24 hours to take effect.

How do I issue a Fatura-Recibo (FR)?

You don't choose the document type. Amenitiz issues a Fatura-Recibo whenever the amount you are invoicing has already been paid. Where you start depends on the payment:

Deposit or partial payment — go to Bills, open the bill and click Fiscalize payments. Amenitiz issues an FR for the amount already paid.
Bill already paid in full — open the bill and click Create invoice. Amenitiz issues an FR covering the whole bill.

For the full guide to issuing and correcting documents, see using fiscal invoicing in Portugal.

Can I issue a simplified invoice (FS) for more than €1,000?

No. Under Artigo 40.º do CIVA, a simplified invoice can only cover €1,000 or less. Above that amount Amenitiz issues a full invoice, which needs the guest's tax details.

If you don't have those details, Portuguese practice allows Consumidor final as the client name and 999999990 as the tax number. For amounts above €1,000 the law expects the customer's name and address on the document, so ask the guest for them whenever you can.

Why does my invoice PDF show "Duplicado"?

That is expected. Amenitiz issues the duplicate copy of the document, which is why the PDF is marked Duplicado.

You can retrieve the original from the Portal das Finanças.

What happens to my InvoiceXpress account?

Nothing changes for your InvoiceXpress account. Access is not removed — it stays available for the legally required retention period, so the documents issued there remain reachable.

How to activate Portuguese invoicing