Fiscalidad
Self-employed Social Security quota in Spain 2026: brackets, payments and examples
A practical guide to Spain's self-employed Social Security quota in 2026: net-income brackets, contribution bases, examples and common mistakes.
Self-employed Social Security quota in Spain 2026: brackets, payments and examples
The self-employed Social Security quota in Spain in 2026 depends on expected monthly net income. Since the RETA reform, self-employed workers no longer choose a contribution base completely disconnected from their earnings. They must place themselves in a net-income bracket and choose a base within the allowed range for that bracket.
This means there is no single answer to "how much does an autonomo pay?" There is a reduced table for lower net income, a general table for higher income and a final adjustment process once real income is known.
This guide explains the structure and links it to wider tax topics: the taxes pillar, taxation in Spain, Spanish income tax concepts, and Bizum and tax return rules for business payments.
How the 2026 quota works
The system starts with an estimate of your net income. In practical terms, this means the economic result of your activity after deductible expenses and the legal adjustment that applies. Based on that estimate, you select a bracket and a contribution base within the allowed range.
The monthly quota is calculated by applying the relevant contribution rates to the base chosen. Two self-employed workers with similar income may therefore pay different quotas if one chooses the minimum base and another chooses a higher base to improve future benefits.
Spain's Social Security publishes the bases and rates, and Importass provides a public simulator. The simulator is useful because it lets you select an estimated net-income range and see the associated quota range.
Reduced table and general table
For 2026, the net-income table distinguishes lower-income reduced brackets and the general table. The general table starts at monthly net income of EUR 1,166.70 or more.
Some official reference brackets are:
| Monthly net income | Minimum base | Maximum base |
|---|---|---|
| Up to EUR 670 | EUR 653.59 | EUR 718.94 |
| More than EUR 670 and up to EUR 900 | EUR 718.95 | EUR 900.00 |
| More than EUR 900 and below EUR 1,166.70 | EUR 849.67 | EUR 1,166.70 |
| EUR 1,166.70 to EUR 1,300 | EUR 950.98 | EUR 1,300.00 |
| More than EUR 1,300 and up to EUR 1,500 | EUR 960.78 | EUR 1,500.00 |
| More than EUR 1,500 and up to EUR 1,700 | EUR 960.78 | EUR 1,700.00 |
| More than EUR 1,850 and up to EUR 2,030 | EUR 1,209.15 | EUR 2,030.00 |
| More than EUR 2,330 and up to EUR 2,760 | EUR 1,356.21 | EUR 2,760.00 |
The full table includes additional brackets for higher income. The practical point is that each bracket has a minimum and maximum base. If your expected income changes during the year, you can adjust the base to better match reality.
Approximate quota examples
The exact quota depends on the contribution rates and the base chosen. As an orientation, if you contribute on the minimum base for your bracket, the quota is roughly that base multiplied by the total applicable rate.
Example 1: EUR 800 monthly net income. You would be in the reduced bracket above EUR 670 and up to EUR 900. The published minimum base is EUR 718.95. The minimum monthly quota is roughly EUR 226.
Example 2: EUR 1,400 monthly net income. You would be in the general bracket above EUR 1,300 and up to EUR 1,500. The minimum base is EUR 960.78. The minimum monthly quota is roughly EUR 303.
Example 3: EUR 2,000 monthly net income. The bracket above EUR 1,850 and up to EUR 2,030 has a minimum base of EUR 1,209.15. The minimum monthly quota is roughly EUR 381.
These figures are useful for orientation, but you should use the official simulator before deciding. If your income is irregular, underestimating it may create a later adjustment.
What net income means
The tricky part is estimating net income correctly. Many self-employed workers look only at invoicing and get the wrong idea. You do not contribute based on everything you invoice. You contribute based on an approximation of what you actually earn after deductible expenses and adjustments.
For example, a professional who invoices EUR 2,500 per month but has EUR 600 of deductible expenses is not in the same situation as someone who invoices EUR 2,500 with almost no expenses. The quota should be linked to real profit, not only sales.
Also separate Social Security from taxes. The self-employed quota is a social contribution. IRPF and VAT are different obligations. For that part, see Spanish income tax concepts and the broader Spanish tax return guide.
Later adjustment
The real-income system means your contributions are later compared with definitive income data. If you contributed below the level corresponding to your actual income, you may need to pay the difference. If you contributed above it, a refund or adjustment may apply under the relevant procedure.
That is why the initial estimate should not be set and forgotten. If your income rises or falls during the year, review the bracket. The rules allow several base changes during the year so that the contribution can follow your real activity more closely.
This is especially important for seasonal businesses, freelancers with irregular projects, new businesses and professionals who depend on a small number of clients.
Common mistakes
The first mistake is always choosing the minimum base without thinking. It reduces the current monthly payment, but it also affects future benefits such as temporary incapacity, cessation of activity and retirement.
The second is confusing the self-employed quota with taxes. Paying Social Security does not replace quarterly income tax payments, withholdings, VAT or other tax obligations.
The third is not setting aside money for adjustments. If your real income is higher than estimated, the difference may arrive when the cash has already been spent.
The fourth is not updating the bracket when the business changes. If you sign a major contract or lose a key client, review your base instead of waiting until year-end.
FAQ
What is the minimum self-employed quota in Spain in 2026
It depends on the net-income bracket. In the lowest brackets, the published minimum base starts at EUR 653.59. The resulting quota depends on the contribution rates applied to that base.
Can I choose a base above the minimum
Yes, within the range for your bracket. A higher base increases the monthly quota but may improve certain future benefits.
What happens if I earn more than expected
Social Security may adjust your contributions once definitive income data is available. If you contributed too little, you may have to pay the difference.
How do I calculate net income
Start from business income, subtract deductible expenses and apply the relevant legal adjustment. If unsure, use the official simulator and speak with an adviser.
Conclusión
The self-employed Social Security quota in Spain in 2026 is not just a monthly number. The key is estimating net income well, choosing a coherent contribution base and reviewing that choice when income changes.
The minimum quota can protect cash flow, but it is not always the best long-term decision. A self-employed worker should combine three habits: use the official simulator, reserve money for taxes and adjustments, and update the base when the business changes. That discipline reduces both overpayment and unpleasant surprises.
Sobre el contenido de esta guía
Este artículo ha sido escrito por Cristian Moreno para Finanzas Fáciles. Analizamos datos de organismos oficiales como el Banco de España y el INE.
Las guías se revisan periódicamente para reflejar cambios económicos y financieros en España. Este contenido es informativo y educativo. No constituye asesoramiento financiero, fiscal ni legal personalizado.