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If the customer doesn't ask for anything, a receipt is enough

You'll know when a receipt is enough for an individual customer, up to what amount it works on its own, and why giving one isn't optional even if nobody asks for it.

By Yodai · Published September 6, 2026 · Updated October 12, 2026

A client pays twenty dollars at your hair salon, grabs her bag, and leaves. She hasn't asked you for anything: no name, no tax ID, no invoice with your letterhead. Do you have to chase her down for her information, or can you just let her walk out with the receipt you already handed her at the register?

Who's buying from you decides what paperwork you owe them. If a company or a self-employed professional buys for their business, the Invoicing Regulation requires you to issue an invoice no matter what, and they'll want it for their own bookkeeping anyway. An individual customer, on the other hand, can pay and walk out without asking for anything. And that's exactly where the mistake lies: thinking that if nobody asks for anything, you don't have to hand over anything.

What you've already handed over has a name

When an individual customer pays and doesn't ask for an invoice, you don't owe them a full invoice with their name and tax ID number (NIF). A receipt is enough. It's not just a worthless scrap of paper: it has its own official name, simplified invoice, and as a general rule it has to exist whether anyone asks for it or not. The obligation to invoice covers everything you sell in the course of your business, with no exceptions beyond the ones set by law, and the Tax Agency lists them: certain VAT-exempt transactions and certain businesses under special regimes, like the equivalence surcharge or the simplified VAT regime (known as módulos).

The difference from a full invoice isn't that the receipt is less official. It's that it doesn't include the buyer's information. According to Article 7 of the Regulation, it has to show a number, the date, your full name (or your company's legal name) and your NIF, what you sold or what service you provided, the VAT rate applied, and the total. In the hair salon from our example, that rate is the standard 21% set by the VAT Law. That's what a consumer needs to have proof of their purchase, and you have to keep your own copy, as required by Article 19 of the Regulation, to back up that income the day the tax authorities come asking.

The limit: $400, with exceptions that go up to $3,000

A receipt works for a sale to an individual customer that doesn't go over $400 with VAT included: that's the general limit set by Article 4 of the Regulation, the same one that applies, for example, to a physical therapy session at your own clinic. Below that amount, it doesn't matter if the customer stays quiet: the receipt doesn't include their information, so you don't need their name to account for the sale.

There's a list of transactions where that limit rises to $3,000, according to the Tax Agency: among them, hair salons and beauty salons, retail sales to end consumers, sales or services delivered to the customer's home, parking lots, and dry cleaners. The customer in our example, with her $20, is well under either limit; the difference only shows up the day that same salon charges $800 for a treatment and still doesn't need anyone's name.

Once you're past whichever limit applies to you, even if the customer doesn't ask for anything, you're required to issue a full invoice. That's when you do need their information: Article 6 of the Regulation requires their full name, their NIF, and their address. If they don't give it to you, you can't issue it properly. But that's a topic for another lesson.