SMI 2026: How much does the Minimum Interprofessional Wage rise and who benefits?

What is the SMI and why the 2026 update matters

The Salario Mínimo Interprofesional (SMI) is Spain's statutory minimum wage. It sets the legal floor for gross pay and is used as a reference for many labour regulations (overtime, part-time proportionality, minimum contributions in some cases, eligibility thresholds for certain benefits). For the tax year 2026 the SMI has been updated by Royal Decree published in the Boletín Oficial del Estado (BOE).

This article summarises the official 2026 figures, explains who benefits most from the rise, and gives practical guidance for employees and payroll managers in Spain. All figures and legal reference point to Spain's official publication (BOE).

Official SMI figures for 2026

• Gross SMI for 2026: 1,221 EUR per month in 14 payments.
• Annual gross SMI for 2026: 17,094 EUR per year.

These figures are the legally binding minimums declared for the tax year 2026 and should be applied when a collective agreement or an employment contract refers to the SMI as the minimum remuneration.

Source: BOE (official publication of the Royal Decree setting SMI for 2026). See the Official sources section below for the BOE link.

Who benefits from the 2026 SMI increase?

1. Workers on or near the minimum wage

The most direct beneficiaries are salaried employees whose contracted gross pay matched or fell below the previous SMI level. For those workers, the employer must raise gross remuneration at least to the new SMI level unless a collective agreement or contract already sets a higher minimum.

1. Part-time and temporary workers

The SMI applies pro rata to part-time contracts: when a contract is measured by hours, the minimum hourly or proportional pay must reflect the new SMI. Temporary workers with pay set at or below the previous minimum also benefit.

1. Households with SMI incomes

A higher SMI increases gross household income for those affected. That can change eligibility for certain means-tested benefits, social tariffs and other supports that consider gross or net income thresholds, although the net impact depends on taxation and contribution changes.

1. Sectors with many low-paid workers

Sectors such as hospitality, retail and some personal services traditionally have a larger share of workers near the SMI. Employers in these sectors will see the direct effect on payroll costs when the SMI changes.

Who may not gain much and why

• Workers already earning above the SMI are unaffected directly by the statutory increase unless their wages are indexed to the SMI by collective agreement.
• Some self-employed workers (autónomos) do not benefit directly because the SMI sets employment floors, not recommended minimums for professional fee setting.

Effects on payroll costs and employer obligations (practical notes)

• Employer gross cost: raising wages to meet the SMI increases employers' gross salary outlay. The exact increase in employer social security cost depends on the employer-side contribution rates applicable to each contract and to the worker's contribution base; those rates are not altered by the SMI itself and vary by situation.

• Social Security contribution base: social security contributions are calculated on contribution bases tied to gross salary. For high earners, the maximum contribution base for common contingencies in 2026 is 5,101.20 EUR per month. The SMI is far below that cap, so for minimum wage workers the maximum base does not apply, but the SMI rise increases the contribution base proportionally.

• Withholdings (IRPF): the personal income tax (IRPF) withholding depends on the worker's circumstances (marital status, dependents, other income). For many low-income workers, IRPF withholdings are low or zero, but the exact withholding must be calculated per worker.

• Minimum contractual clauses and collective agreements: some collective bargaining agreements link allowances or increments to the SMI. When the SMI rises, those clauses may trigger automatic increases in other salary concepts.

Because the details of employer social charges and IRPF depend on rates and personal situations that are not uniform across all employees, payroll departments should recompute contributions and withholdings for each worker when applying the new SMI.

Practical example and limitations (why you should run a precise simulation)

A worker whose gross annual salary equals the 2026 SMI (17,094 EUR/year) will see higher gross pay if they were previously paid below that level. However, net take-home pay depends on the deductions that apply: employee social security contributions, applicable withholdings for IRPF and possible other deductions (union fees, advances). Because official withholding percentages and individual circumstances differ, a precise net estimate requires a tailored payroll simulation.

Use our SMI 2026 calculator for an informative simulation of gross-to-net in Spain. Remember: Informative simulation; official withholding must be compared with AEAT.

Impact on hiring, subcontracting and small businesses

• Small and micro businesses face a direct increase in payroll if they employ workers paid at or below the previous SMI. This can affect margins and hiring decisions if wage floors rise faster than productivity or price adjustments.

• Some employers may renegotiate working hours, schedules, or contract types for cost management, but any change must comply with labour law and avoid unlawful devaluations of worker rights.

• Public procurement and minimum service contracts that reference the SMI will see budgetary implications where service prices were originally calculated using the previous minimum wage.

Questions employers and workers should check now

• Is any worker paid below the new SMI? Adjust contracts and payroll to comply.
• Are part-time salaries proportional to the SMI? Recalculate hourly rates to ensure compliance.
• Do collective agreements in your sector contain clauses that react to SMI changes? Apply corresponding increases.
• Recompute social security bases and withholdings in each payroll run to reflect the new gross pay.

Calculator call to action

If you want a quick, personalised estimate of net pay under the 2026 SMI, use our SMI 2026 calculator. It provides an informative simulation based on the official SMI and standard contribution bases. Informative simulation; official withholding must be compared with AEAT.

Official sources

See the Royal Decree published in the Boletín Oficial del Estado for the legal text establishing the SMI for 2026.

• BOE: Royal Decree setting the SMI 2026 — https://www.boe.es/buscar/act.php?id=BOE-A-2026-3815

Quick reference (selected official figures for 2026)

• SMI 2026: 1,221 EUR/month in 14 payments; 17,094 EUR/year.
• Social Security maximum contribution base (common contingencies): 5,101.20 EUR/month.
• Employee MEI (reference figure included for payroll calculations): 0.15%.

Note: These figures are taken from official sources or provided parameters for payroll simulations. Social security contribution rates on the employer and employee sides and specific IRPF withholdings depend on legal rates and individual circumstances and are not invented here.

Spain-focused disclaimer

This article is focused on Spain and cites official Spanish sources (BOE). It is informational and not legal advice. For binding tax withholdings and contributions consult the Agencia Tributaria (AEAT), Seguridad Social guidance or a qualified payroll specialist.