Stamp Duty on Rental Agreements: How Much and When to Pay

Stamp duty applies to rental agreements and is paid when registering with the Tax Authority (AT). Knowing the rate and the deadline avoids surprises and fines.

The problem

Stamp duty is often forgotten or confused with other obligations. Failing to pay it at the right time risks fines and delays in registration.

The essentials

• Tax basis — applied to the rent amount, under the terms of the Stamp Duty Code.
• When — settled when registering the contract with the Tax Authority (AT).
• Who pays — typically the landlord, unless agreed otherwise.
• How — via the Finance Portal (Portal das Finanças), during the same registration process.

Small and predictable — if paid on time

It is a modest cost as long as it is paid on time. Forgetting it turns a small amount into an avoidable fine.

Frequently asked questions

What is the stamp duty rate on a rental agreement?

The rate is applied to the rent amount under current legal terms; verify the current value with the official source before paying.