How to Register a Rental Contract with Finanças

Every landlord in Portugal is legally required to register their rental contract with the Autoridade Tributária (AT) — the Portuguese Tax Authority — through the Portal das Finanças. It's one of those obligations that catches many first-time landlords off guard, especially expats who may not be familiar with Portuguese tax procedures.

The good news is the process itself is straightforward. The bad news is that missing the deadline can result in fines and tax headaches. Here's exactly how to do it, step by step.

Why Registration is Mandatory#

Communicating lease data to the AT through Modelo 2 is a separate tax-law duty under Article 60 of the Stamp Duty Code (CIS). It is not the same legal act as signing the lease under the urban-tenancy rules. The communication serves several purposes:

• Tax compliance: The AT uses it to track rental income for IRS (income tax) purposes
• Receipt workflow: The registered contract supports the ordinary Portal das Finanças receipt workflow
• Tax records: The AT record and applicable payment evidence support later tax filings
• Tax record: Communication creates the official AT record for the separate tax workflow

The Registration Deadline#

For an initial lease, the landlord must communicate the contract by the end of the month following the lease start. The deadline follows the start date, so make sure your contract records that date correctly.

Article 60(2) applies the same end-of-the-following-month formula to reportable alterations and cessation. A renewal or tax-benefit workflow may raise a different question, so identify the event and confirm the current Portal das Finanças route rather than treating every later change alike.

What You Need Before You Start#

Gather these documents and details before logging into the portal:

Required Information#

Item	Details
Landlord NIF	Your Portuguese tax number
Tenant NIF	The tenant's Portuguese tax number
Property details	Matrix article number, parish, municipality
Contract details	Start date, duration, monthly rent amount
Property type	Habitation, commercial, mixed use
Stamp duty	Calculated automatically by the portal

Access Requirements#

• Portal das Finanças login credentials (NIF + password)
• Or a digital certificate / Chave Móvel Digital

Step-by-Step Registration Process#

Step 1: Log In to Portal das Finanças#

Go to Portal das Finanças(opens in new tab) and log in with your NIF and password.

Step 2: Navigate to the Rental Section#

Once logged in, go to: Serviços → Arrendamento → Comunicar Início de Contrato

Step 3: Enter Property Details#

Fill in the property identification:

• Select the district (distrito), municipality (concelho), and parish (freguesia)
• Enter the matrix article number (artigo matricial)
• Confirm the property address

Step 4: Enter Contract Details#

Provide the contract specifics:

• Contract type: Fixed-term (prazo certo) or open-ended (duração indeterminada)
• Start date: Must match the date on your signed contract
• Duration: For fixed-term contracts, enter the initial period
• Monthly rent: The gross monthly rent in euros
• Purpose: Habitation, commercial, etc.

Step 5: Enter Tenant Information#

Add all tenants listed on the contract:

• Full name
• NIF
• Percentage of the lease they hold (100% for a single tenant)

Step 6: Stamp Duty (Imposto de Selo)#

The portal automatically calculates the stamp duty (Imposto de Selo) owed on the lease:

Stamp Duty Rate	Applies To
10% of one month's rent	Leases and subleases generally; confirm the special basis for any non-renewable term shorter than one month

The Portal das Finanças issues the applicable stamp-duty payment details during the registration process. Pay by the deadline shown in the official workflow; this guide does not state a separate payment deadline that has not been independently verified.

Step 7: Submit and Confirm#

Review all details carefully, then submit. You'll receive a confirmation reference number. Save this — you'll need it for tax returns and receipt issuance.

Issuing Electronic Rent Receipts#

For most individual landlords, the ordinary route is to issue electronic rent receipts through the Portal das Finanças when rent is received:

Serviços → Arrendamento → Emitir Recibo de Renda

What Happens If You Don't Register?#

Failing to register your rental contract can result in:

Consequence	Impact
Administrative fines	€75 to €3,750 depending on the applicable offence and facts
Receipt/tax workflow disruption	Confirm the applicable receipt route and tenant evidence separately
Tax audit risk	Unreported rental income may trigger an audit
Missing AT record	The separate tax duty remains outstanding until regularised

Contract Amendments and Termination#

You must also communicate the following to Finanças:

• Contract renewal: If terms change (e.g., rent increase beyond the INE coefficient)
• Contract termination: Report the end date and reason under the applicable Portal das Finanças process and deadline
• Tenant change: If a tenant is added or removed (e.g., spouse, roommate)

For how annual rent updates work, see our guide on the INE coefficient.

Frequently Asked Questions#

Get Your Contract Ready for Registration#

Prepare the property's identification, the parties' NIFs, the contract dates and terms, and the rent amount before opening the Portal das Finanças registration flow.

Check the property's separate energy-certificate requirements before the lease begins; Modelo 2 communication does not replace that check. For a complete breakdown of ongoing receipt obligations — including who may be exempt and what information belongs on each receipt — see the rent receipt obligations guide. For deeper coverage of stamp duty, expense deductions, and annual IRS reporting, see our landlord tax obligations guide.

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