Increase in premiums for partners of companies and cooperating family members by 42%
This year, the minimum social security contribution base for self-employed partners of companies (autónomos societarios) and cooperating family members (familiares colaboradores) in Spain increased by more than 42%. The following article examines these changes and their direct financial impact in detail.
Important Tax Reminder: In the context of financial matters, we would like to remind you that exactly today (April 8) the Spanish Tax Authority (Agencia Tributaria) opens the window for filing annual tax returns (Declaración de la Renta). The deadline for submitting documents electronically is June 30.
Main assumptions and changes in rates
The new minimum contribution base has reached €1,424.40 per month this year, compared to the €1,000 in effect in 2025. This will lead to a noticeable increase in the burden on the Spanish Social Security (Seguridad Social). This situation contrasts sharply with the position of the other self-employed, for whom contributions have been frozen this year.
Alignment mechanism (Regularización)
Under the provisional arrangement, injured entrepreneurs and their family members can continue to contribute on a minimum base of €1,000 per month this year. However, it is important to be aware of upcoming obligations:
- Date of compensation: The regularization process for 2026 is scheduled for the end of 2027 or beginning of 2028.
- Surcharge Obligation: Entrepreneurs will be required to pay the difference between the premium paid on a base of EUR 1,000 and the rate actually due, calculated on the amount of EUR 1,424.40 (unless they voluntarily adjust their base to the new value beforehand).
Direct costs for entrepreneurs
The difference between the old and new minimum contribution base has a measurable financial impact in the form of higher monthly deductions. The table below illustrates the estimated cost of equalization depending on the currently declared base:
| Declared base (EUR) | New mandatory base (EUR) | Estimated monthly surcharge (EUR) | Estimated annual surcharge (EUR) |
|---|---|---|---|
| 1 000,00 | 1 424,40 | ~ 135,00 | ~ 1 620,00 |
| 1 212,00 | 1 424,40 | ~ 70,00 | ~ 840,00 |
Systemic context and argumentation of institutions
The new base applies to a group with a total of more than one million people. It corresponds to the rate provided for Group 7 in the General Social Security System, as formalized in a regulation published in the State Official Gazette (BOE).
Social Security officials point out that the change is based on several key fundamentals:
- Legal continuity: The modifications are a direct result of the provisions of the 2022 reform, which introduced a system of premiums based on actual income.
- Minimum thresholds: The law stipulates that the contribution base for the groups in question from 2026 could not be lower than the minimum base in the general system.
- Security for the future: Institutions argue that paying higher premiums will ultimately translate into higher and more secure social and pension benefits for payers in the future.
Dissatisfaction of business organizations
The changes made and the failure to freeze rates for this particular group have drawn criticism from the main associations representing the self-employed in Spain:
- UPTA (Unión de Profesionales y Trabajadores Autónomos): Representatives of the association point out that there is a simple path to solving this problem. They call for the implementation of a decree-law that would extend the existing base for this group of contributors, thus correcting the current inequality.
- ATA (Federación Nacional de Asociaciones de Trabajadores Autónomos): The association's authorities point out that the drastic base increase of more than 40 percent is due to the technical absence of updated State Budgets for the year. The organization has announced urgent talks with parliamentary groups to eliminate the disparity even before the process of mandatory equalization of contributions.
