Demand for payment of invoices between businesses by burofax (Spain)
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For a self-employed person or business whose invoices another business in Spain will not pay: a Spanish demand for the principal, the late-payment interest and the 40 euros per invoice of Spain's Law 3/2004, with the invitation to negotiate within thirty days that Organic Law 1/2025 requires before a court claim, including the payment-order procedure (monitorio). Sent by burofax with certified content and acknowledgement of receipt, proving what was sent and when. In Spanish.
- Made for use in Spain
- Last updated October 20, 2026
Published byDocMuse
When to use this document
- A client of your business in Spain has not paid your invoices for months.
- You have already sent reminders by e-mail and the client still does not pay.
- You want to recover unpaid invoices and get ready for a court claim if needed.
- You need a burofax to a debtor company inviting it to negotiate before going to court.
What you fill in
The details the document asks for.
- Creditor
- Creditor's NIF (Spanish tax number)
- Creditor's address
- Contact phone or e-mail
- Debtor
- Debtor's postal address (street and number, postcode and town)
- City
- Date
- List of invoices
- Unpaid principal (euros)
- Recovery costs (40 euros per invoice, or the actual costs)
- IBAN
Common questions
- Why does this demand for payment include an invitation to negotiate?
- Because since 3 April 2025 a civil or commercial claim is not admitted in Spain unless a suitable dispute-resolution step was tried first (Organic Law 1/2025). The letter identifies the debt precisely, invites negotiation and gives thirty calendar days: with no written answer by then, the attempt counts as made. It is sent by burofax with certified content, proving the text and the date of receipt; keep the receipt for the court.
- What can I do if the debtor company neither pays nor answers within thirty days?
- You can claim the debt through Spain's payment-order procedure, the monitorio (arts. 812 ff. of the Civil Procedure Act). The initial application is made on the free form published by the General Council of the Judiciary (CGPJ), without a lawyer or court representative whatever the amount, enclosing the invoices and the proof of this burofax. If the debtor objects and the debt exceeds 2,000 euros, the trial that follows needs a lawyer and a court representative. DocMuse does not draft the application.
- How much late-payment interest can I claim from another business in Spain?
- The rate set by Spain's Law 3/2004: the European Central Bank rate plus eight points, published each half-year in the BOE; for 1 July to 31 December 2026 it is 10.40 %. It runs without notice from each invoice's due date. You may also claim 40 euros per invoice for recovery costs and, if the costs you can prove are higher, the difference (art. 8).
How you can sign this document
- Print it and sign by hand. The signature lines in the document are left blank on purpose — sign on them in ink.
- Sign it yourself with a qualified electronic signature. If you already hold a QES — Evrotrust, B-Trust, StampIT, ZealiD or any qualified provider on the EU Trusted List, on a card, a USB token, in a mobile app or in the cloud — our signing guide explains step by step how to sign this exact file without invalidating it. Step-by-step help, and a way to check it worked
DocMuse sells documents, not legal advice. Acceptance always depends on the recipient's rules and your local law.
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