Invoicing before or after payment: the VAT freelancers in Spain front up

Invoice before or after payment: who fronts the VAT

A client asks for the final invoice before paying and refuses a proforma. The freelancer hesitates: issue the document and take the risk, or wait for the money to arrive. The short answer is that an invoice is not a receipt: it is issued when the service or goods are delivered, not when the money comes in. The long answer is that whoever issues it before getting paid is financing the Spanish tax agency (Hacienda) out of their own pocket.

What happens if the client doesn't pay the invoice

The problem is not issuing it. The problem is the VAT. If the client doesn't pay, the freelancer has already declared and remitted that tax. Some put it bluntly: if the client later doesn't pay you, you're fronting that VAT. The technical solution exists: issue a corrective invoice (factura rectificativa), with its own numbering, referencing the original, and include it in the corresponding quarter. When the result is negative on the Modelo 303 VAT return, the tax agency may request a copy of the invoice and proof of the credit note.

This is where the maze begins. According to the procedure used in the sector, to correct for non-payment you must first claim the invoice judicially or through a notary, then issue the corrective invoice, report it to the tax agency and record the reduction of the taxable base for the uncollectible VAT in the monthly or quarterly return. Four steps that turn a 560 euro unpaid invoice into a full-blown file.

Proforma, delivery note or invoice: what each freelancer uses

Actual practice is a patchwork. Some always work with a proforma and issue the invoice on payment. Some distinguish by how long they've known the client: proforma for new ones, invoice for trusted ones. And some ask for a purchase order when the client insists on an invoice from the start. A delivery note pending payment is another formula that comes up.

The cautious argument is simple: a proforma is not booked and creates no tax obligation. The pragmatists' argument too: if you don't issue an invoice, they can't pay you, whether immediately or when due. And the burned-out ones make the most eloquent case. One reported case: a client who had bought several times without problems, good faith, invoice issued with the goods on deferred payment. Result: 560 euros unpaid and the invoice already out there.

The corrective invoice doesn't close the hole

Issuing a corrective invoice fixes the VAT, not the debt. When you correct it, the debt formally disappears and the amount goes down as a loss. In other words, you recover the VAT you fronted but lose the full value of the transaction. And if VAT is declared monthly, a later corrective invoice means having fronted the tax for weeks or months.

Some add a preventive note on the invoice: that issuing the document does not imply its payment. Others point out that payment should be proven by bank transfer, regardless of stamps, signatures or receipts. Not worth the paper, in practice.

The regulatory change on the way

One date looms on the horizon: 1 January 2026. According to the discussion, by then the treatment of the proforma invoice will change. The details of what exactly changes haven't been spelled out, but the expectation is that the system will be tidied up. Meanwhile, the advice that keeps coming up is the same: proforma first, invoice once the money is in the account. Or take the risk and keep the correction procedure at hand.

Is it worth risking the VAT just to avoid inconveniencing a client who demands an invoice before paying?