Lei 93/2017 — Lei 93/2017RGPD (Reg. UE 2016/679), Art. 5 — RGPDArt. 1041º CC — Código Civil

Tenant Screening in Portugal: What Landlords Can Legally Check (2026)

Tenant screening (verificação de inquilinos) is the cheapest protection a Portuguese landlord has against rent arrears. Learn what you may lawfully request under Lei 93/2017 and the RGPD, which documents to check, and how the 3x income rule works in practice.

Legal Guide

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5 min read

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4 sections

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4 FAQs

1What Is Tenant Screening — and Why It Matters in Portugal

Tenant screening — verificação de inquilinos in Portuguese — means checking a candidate's identity, income and rental history before you sign. In Portugal it carries unusual weight: terminating a lease for non-payment generally requires arrears of at least three months (Art. 1083º CC), the tenant can stop the process by paying what is owed (Art. 1084º CC), and a contested eviction routinely takes many months from the first missed payment to recovered keys.

The law does compensate you for late rent — Art. 1041º CC allows a 20% indemnity on the overdue amount once an 8-day grace period has passed — but an indemnity is only worth something if the tenant can pay it. Screening works earlier, before the contract exists, when you can still simply say no. It is the cheapest protection a Portuguese landlord has.

2The Legal Rules: What You May Ask — and What Is Off-Limits

Portuguese law draws the line in two places: anti-discrimination rules and data protection.

You may lawfully ask for what a solvency decision genuinely requires:

•Proof of income and employment — recent recibos de vencimento (payslips), the declaração de IRS (annual income-tax return), or a contrato de trabalho (employment contract).

•References from a previous landlord.

•Identification — Citizen Card or passport plus NIF (tax number), needed to draft the contract itself.

What is off-limits is just as clear:

•Discriminatory questions. Lei 93/2017 prohibits discrimination in access to housing, including on grounds of nationality or ethnic origin. Questions about religion or sexual orientation concern special-category data under the RGPD (the EU General Data Protection Regulation, GDPR) and have no place in tenant selection.

•Health data and criminal records. Health information is special-category data under the RGPD, and a landlord has no legal basis to demand a criminal-record certificate for a residential tenancy.

•Disproportionate collection. The RGPD requires data minimisation, purpose limitation, and storage limitation: collect only what the decision needs, use it only for that purpose, set a justified retention period, and securely delete or anonymise the documents when they are no longer necessary.

•Covert profiling. Scraping a candidate's social-media accounts into a screening file is not a lawful processing method.

3Practical Details: The Document Checklist and the 3x Rule

A solid screening for a Portuguese tenancy covers four checks:

•Income: the last three months of recibos de vencimento plus, ideally, the most recent declaração de IRS. Self-employed candidates can show invoices and the IRS return instead.

•Stability: the contrato de trabalho shows whether the role is permanent (sem termo) or fixed-term, and since when.

•References: a short call to the previous landlord — did the rent arrive on time, and how was the property returned?

•Identity: confirm the documents match the person who will actually sign.

The standard affordability benchmark is the 3x rule: net household income of at least three times the rent. If the rent is €900, look for combined net income of roughly €2,700 per month. Treat it as market practice, not law — nothing in the NRAU or the Civil Code imposes an income ratio. A candidate at €2,400 with a permanent contract and a strong fiador (guarantor) can be a better risk than one at €2,700 in a precarious job.

Where income alone is not convincing, the lawful reinforcements are a guarantor or the security deposit — capped at two months' rent (Art. 1076º CC).

4Common Mistakes to Avoid

For landlords:

•Asking for unlawful data — health details, criminal records, or questions touching nationality, ethnicity, religion or sexual orientation (Lei 93/2017 and the RGPD).

•Keeping rejected applicants' documents "for next time" without a documented lawful purpose and retention period — securely delete or anonymise them when they are no longer necessary.

•Skipping the reference call — payslips prove income; only a previous landlord can speak to behaviour.

For tenants:

•Paying a "reservation fee" before any contract exists — legitimate landlords take money against a signed lease and a receipt, not before.

•Sending document scans to landlords you have not verified — confirm the person and the property are real before sharing personal data.

Legal References

Lei 93/2017 — Lei 93/2017

Anti-discrimination framework; prohibits discrimination in housing based on nationality or ethnicity. Tenant-selection criteria must stay within it.

RGPD (Reg. UE 2016/679), Art. 5 — RGPD

EU data-protection rules govern how landlords collect, use, and store applicants' personal data during screening, including data minimisation, purpose limitation, and storage limitation. Documents must not be kept longer than necessary for the stated purpose or another documented lawful basis.

Art. 1041º CC — Código Civil

If rent is late, the landlord may demand 20% of the overdue amount as indemnity after an 8-day grace period (amended by Lei 13/2019). A remedy after the fact — screening reduces the chance you ever need it.

This guide is for informational purposes. For specific legal advice, consult a Portuguese lawyer.

Frequently Asked Questions

What documents can a landlord ask a prospective tenant for in Portugal?

Documents that support a solvency and identity decision: recibos de vencimento (payslips), the declaração de IRS (annual income-tax return), a contrato de trabalho (employment contract), previous-landlord references, and identification with NIF for drafting the lease. The RGPD requires the request to stay proportionate to that decision.

Can a landlord in Portugal require a criminal record or health information?

No. Health data is special-category data under the RGPD, and there is no legal basis to demand a criminal-record certificate for a residential tenancy. Selection criteria must also respect Lei 93/2017, which prohibits discrimination in access to housing.

Is the 3x income rule a legal requirement in Portugal?

No — it is market practice. Portuguese law does not set a minimum income ratio for tenants. Most landlords look for net income of about three times the rent (around €2,700 per month for a €900 rent), but stable employment or a guarantor can reasonably offset a lower ratio.

How much can a landlord charge when rent is paid late?

Art. 1041º CC entitles the landlord to an indemnity of 20% of the overdue amount once the tenant's 8-day grace period has passed. It compensates delay after the fact — screening exists precisely so you rarely have to invoke it.

Portuguese Landlord Rights & Obligations: Complete NRAU Guide (2026)Renting in Portugal as a Foreigner: Step-by-Step Guide (2026)