Everyday shopping in Portugal is dominated by a handful of large supermarket chains — Continente, Pingo Doce, Lidl, Auchan, Mercadona, and Intermarché — alongside a growing online delivery market. Consumer protection is anchored in EU-derived Portuguese law: a legal warranty of 3 years on movable goods (5 years for immovable property), and a 14-day right of withdrawal on most online/distance and door-to-door purchases. Complaints can be filed via the mandatory Livro de Reclamações (complaints book), physical or electronic, which every business must provide.
Newcomers need to know where to shop for groceries and household goods, roughly what to budget, and — critically — what legal protections apply when a purchase goes wrong (faulty goods, online orders, or unwanted door-to-door contracts). Understanding the Livro de Reclamações and the legal warranty regime helps avoid being talked out of legitimate rights by a retailer.
Key Facts
Legal warranty (garantia legal) on movable goods bought in Portugal: 3 years from delivery; on immovable property (real estate): 5 years (gov.pt). Used movable goods may carry a reduced 1-year warranty if buyer and seller agree to this at sale.
Remedies for a non-conforming/defective product, in order of consumer choice where applicable: repair, replacement, price reduction, or contract termination (gov.pt), based on Decree-Law No. 84/2021 transposing EU Directive 2019/771.
Consumers must report a defect within 2 months of discovering it (movable goods) or within 1 year (immovable goods) to preserve their claim under the legal warranty (gov.pt).
Right of withdrawal ("direito de livre resolução") on distance purchases (online, phone) and off-premises/door-to-door sales: 14 calendar days to cancel without justification and receive a full refund including standard delivery costs (gov.pt); door-to-door contracts specifically carry a 30-day withdrawal right under separate ANACOM/consumer guidance for certain sectors (e.g., telecoms).
Every business open to the public must provide a Livro de Reclamações (complaints book), in physical and/or electronic form (via livroreclamacoes.pt), for customers to formally register complaints; this is a legal requirement enforced by ASAE (Autoridade de Segurança Alimentar e Económica), under Decree-Law No. 156/2005 as amended.
Major supermarket chains operating nationally include Continente (Sonae), Pingo Doce (Jerónimo Martins), Lidl, Auchan, Mercadona, and Intermarché; according to 2026 market-research reporting, Continente and Pingo Doce are the two largest by market share, with Lidl third (this ranking comes from retail/market-research media coverage, not an official government statistic, and should be treated as indicative rather than authoritative).
General consumer price inflation (IPC), a proxy for how grocery/living costs are trending, was running at a year-on-year rate of 3.3% as of May 2026 per Instituto Nacional de Estatística (INE), Portugal's national statistics office.
Steps
Returning or complaining about a faulty or unwanted purchase — 1. For a faulty/non-conforming product bought in-store or online, contact the seller (not the manufacturer) first — sellers must offer repair, replacement, price reduction, or contract termination as a remedy, within the 3-year legal warranty period.
2. For online/distance or door-to-door purchases you simply want to return without a defect, exercise your 14-day right of withdrawal by notifying the seller in writing (often via a cancellation form the seller must provide) and returning the goods; refunds, including standard delivery cost, are due once the seller receives the return notice/goods.
3. If a retailer refuses a legitimate complaint, ask for the Livro de Reclamações (physical book, or a link to submit via livroreclamacoes.pt) — businesses are legally required to provide this on request.
4. Escalate unresolved consumer disputes to a local consumer arbitration centre (Centro de Arbitragem de Conflitos de Consumo) or the Direção-Geral do Consumidor for further guidance.
Costs
General inflation context: Consumer Price Index (IPC) year-on-year change of 3.3% as of May 2026 (INE); core inflation (excluding unprocessed food and energy) was 2.2% in the same month.
Required Documents
Proof of purchase (receipt or invoice) is generally required to exercise legal warranty or withdrawal rights.
Common Mistakes
Assuming the 3-year legal warranty only applies to "big" purchases — it applies to most movable consumer goods bought from a business, not just electronics or appliances.
Missing the 2-month window to notify a seller after discovering a defect in a movable good, which can weaken a warranty claim.
Not realizing door-to-door/at-home sales contracts (e.g., some energy, telecom, or subscription pitches) carry consumer withdrawal rights just like online purchases.
Confusing the seller's legal warranty obligations (which run to the seller, not the manufacturer) with a separate commercial/manufacturer guarantee, which may have different terms.
Leaving a shop without insisting on the Livro de Reclamações when a legitimate complaint is refused — it is a legal right, not a favour from the retailer.