Social Security Quota Calculator
Calculate your monthly and annual Social Security contributions as an Autonomo in Spain (2025)
Range: €1.00 - €999,999
Your Bracket
New Autonomo Flat Rate (Tarifa Plana)
If you're registering as Autonomo for the first time, you may be eligible for a flat rate of €86 per month during your first 12 months. This applies regardless of your chosen base amount. After 12 months, you'll pay the regular bracket-based contributions.
* Eligibility conditions apply. Consult with a tax advisor to confirm if you qualify.
How it works
Base de Cotización
As an Autonomo in Spain, you choose your base amount between the minimum (€944.40) and maximum (€4,495.50) limits. This base determines your contributions and future retirement benefits. You can change it once per year.
New Autonomo Benefit: First-time Autonomos may qualify for a flat rate of €86 per month during the first 12 months, regardless of base amount.
Contribution Brackets
Contributions are based on fixed monthly amounts determined by your income bracket, not a percentage. Each bracket has a specific contribution amount.
Example Calculation
For a base amount of €2,000 per month (2025/2026 rates):
Note: Calculator uses 2025 rates (2026 uses the same rates).
Frequently Asked Questions
Can I change my base amount?
Yes, you can change your base de cotización once per year, typically during a specific period announced by Social Security. Higher bases mean higher contributions but also higher future retirement benefits.
What happens if I choose a lower base amount?
Choosing a lower base amount places you in a lower contribution bracket, meaning lower monthly payments but also lower retirement benefits in the future. For example, a base of €670/month results in €230/month in contributions for both 2024 and 2025.
Do I need to pay Social Security if I'm registered as Autonomo?
Yes, all Autonomos must pay Social Security contributions monthly, regardless of income. The minimum payment is based on the minimum base amount.
Are there any reductions for new Autonomos?
Yes! New Autonomos may qualify for a flat rate of €86 per month during their first 12 months, regardless of their chosen base amount. This is known as "tarifa plana" (flat rate). After 12 months, you'll pay the regular bracket-based contributions. Eligibility conditions apply - consult with a tax advisor to see if you qualify.