I lost the receipt. Is the guarantee still valid?
Checked on 28/09/2026
Yes. The legal guarantee does not disappear with the paper, if you can show who you bought from, when, and what. The law accepts a receipt, an invoice, or another document proving payment.
What you attach to a claim
Article 43(4) of the sale-of-goods act says you attach the documents the claim is based on: a cash receipt, an invoice, or a document proving payment. A card statement or a bank transfer to the shop, with a date and an amount, is such a document. An email about an online order, and the order number, also help show which goods.
When the shop wants only the paper
Some shops still refuse a claim without the original receipt. Ask them to enter it in the register: they owe you a document with the date, the number, the kind of goods, and the signature of the person who accepted it (Article 47(2)). A seller must accept a timely claim (Article 46).
If they refuse while you have proof of payment, describe that in a complaint to the Commission for Consumer Protection.
What to gather now
The date, the shop, the amount, the name of the goods, and the serial number if you have it. A photo of the box, the warranty card, and the bank statement. The closer the document is to the lost receipt, the less there is to argue about.
Sources
This is general information as of the review date, not legal advice. If a seller refuses a claim, you can complain to the Commission for Consumer Protection.