Late Payment Interest Calculator
Calculate the interest accrued on unpaid invoices in Spain using legal or commercial rates.
Enter amount and days overdue to see interest calculation
Disclaimer: This calculator is provided for informational purposes only. Holded is not responsible for any inaccuracies, errors, or outdated data in the calculations. Results should not be considered financial or tax advice. Always consult a qualified professional for decisions based on these calculations.
Frequently asked questions
The legal interest rate (interés legal del dinero) is set annually by the Spanish government in the General State Budget. For 2025, it is 3.25%.
For B2B transactions, Spanish law (Ley 3/2004) sets the late payment interest at the legal rate plus 8 percentage points. For 2025, this is 3.25% + 8% = 11.25%.
Interest accrues from the day after the payment due date. If no due date was agreed, interest starts 30 calendar days after the invoice date or receipt of goods/services.
