Essential Documents for Tenants in Portugal

Rent & updates (index/coefficient, caps) 3 min read · published September 11, 2025

As a tenant in Portugal, knowing which documents to keep and what evidence to present can make a difference in situations such as rent updates, requesting the energy certificate, or defending against evictions. This guide explains, in simple terms, which proof of income and identification are frequently required, how to obtain the property's energy certificate, and which legal limits and coefficients affect rent increases. It also describes how to organize receipts, written communications and photographs, and when to turn to the Tenant and Landlord Desk or the courts. Use the instructions to prepare requests, meet deadlines and protect your rights even without legal experience.

Essential documents for tenants

Before any administrative request or court defense, gather the basic documents below. Having everything organized makes it easier to prove payments, income and communications between the parties.

  • Signed lease agreement and any addenda.
  • Rent receipts or payment proofs (transfers, manual or electronic receipts).
  • Proofs of household income (pay slips, IRS return, declaration of employment status).
  • Property energy certificate or forms related to the certificate request.
  • Identification (Citizen Card or ID) and tenant's NIF.
  • Written communications with the landlord (emails, registered letters) and contact records.
  • Photographs or videos showing the property's condition, damp, leaks or faults.
Keep all rent receipts organized and stored safely.

What to check about rent, coefficients and limits

Rent adjustments may depend on coefficients and limits provided by applicable legislation, so it is useful to confirm the legal reference before accepting any change.[1] Also check your contract clauses on updates, notice periods and applicable indices.

Respond to formal notices within the indicated deadlines to avoid losing rights.

How to obtain the energy certificate

For energy certificate requests, contact a qualified expert and insist on a written report. Keep copies of the report and the proof of payment for the service.

Deadlines and evidence in disputes

In disputes about payments or evictions, presenting organized evidence (receipts, proof of sending letters, dated photos) facilitates procedures at the Tenant and Landlord Desk or in court. If you need support to start a special procedure or an injunction action, consult the official forms and the competent Desk.[2]

Organized documentation increases the effectiveness of formal complaints.

Frequently Asked Questions

Which documents are required when asked for proof of income?
Usually pay slips, IRS declaration or wage receipts; in some cases proof of social support or an employer statement is acceptable.
Can the landlord request the energy certificate from the tenant?
The energy certificate is the owner's obligation, but the tenant should request a copy of the document for record-keeping.
Where do I turn if there is a dispute over a rent increase?
You can go to the Tenant and Landlord Desk and, if necessary, file a judicial process following legal deadlines.

How-To

  1. Gather the lease, rent receipts and payment proofs into a single file organized by date.
  2. Separate up-to-date proof of income and keep secure digital copies.
  3. Request the energy certificate from the owner and ask for a written copy.
  4. Document habitability issues with dated photos and communicate them in writing to the landlord.
  5. If there is no agreement, collect all documentation and submit it to the Tenant and Landlord Desk or proceed legally.
In many cases, a written communication and proof of payment resolve conflicts without court action.

Key Takeaways

  • Gather lease, receipts and income proofs to simplify any claim.
  • Request and keep the energy certificate as proof of the property's condition.
  • Record all communications in writing and keep photographic evidence.

Help and Support / Resources


  1. [1] DRE - NRAU and applicable legislation
  2. [2] Citius - forms and Tenant Desk
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights Portugal

Bob writes and reviews tenant law content for various regions. They’re passionate about housing justice and simplifying legal protections for tenants everywhere.