Minimum Wage in Spain (SMI): What It Is and Who It Applies To

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The Salario Mínimo Interprofesional (SMI) (Minimum Interprofessional Wage) is one of the fundamental pillars of the labor market in Spain, acting as a safety net that guarantees decent pay for any worker. In recent years, this indicator has experienced historic growth, generating constant doubts for both employees—especially vulnerable groups or foreign residents—and employers. Understanding what the SMI is, how it is calculated, who it protects, and how it is applied in real life is essential to ensure legal compliance and prevent labor abuse.

What is the Salario Mínimo Interprofesional (SMI)?

The Salario Mínimo Interprofesional is the minimum wage amount that a worker must receive for their legal working day, without distinction of sex, age, or type of contract (whether permanent, temporary, full-time, or part-time). This is an mandatory limit: no convenio colectivo (collective bargaining agreement), individual contract, or company agreement can establish remuneration lower than this threshold for a full-time working day.

Setting the SMI is the exclusive responsibility of the Government of Spain. According to the legal framework, the Executive must consult beforehand with the most representative trade unions and business associations to determine its annual amount. To set it, key macroeconomic factors are taken into account, such as the Índice de Precios de Consumo (IPC) (Consumer Price Index), the national average productivity achieved, the increase in labor's share of national income, and the general economic situation.

Legal Framework: Where is the SMI Regulated?

The right to receive a minimum wage is not an arbitrary concession, but a constitutional and legislative mandate firmly regulated in the Spanish legal system:

• The Spanish Constitution (CE): Article 35.2 of the Magna Carta enshrines the right of all Spaniards to a remuneration sufficient to satisfy their needs and those of their family, without any discrimination based on sex.
• *The Estatuto de los Trabajadores (Workers' Statute - Royal Legislative Decree 2/2015, of October 23): This is the key regulation. Its Article 27 specifically regulates the Salario Mínimo Interprofesional*, determining how it is set, its non-seizable nature, and its annual review. Likewise, Article 26 establishes the structure of the salary and the possibility of compensation and absorption.
• Royal Decree on the SMI: Every year, the Council of Ministers approves a specific Real Decreto (Royal Decree) that sets the concrete amounts of the SMI for the current financial year (for example, for the year 2024, Real Decreto 145/2024, de 13 de febrero).
• *The Ley General de la Seguridad Social (LGSS) (General Social Security Law):* The SMI is the reference indicator used to determine the minimum contribution bases for Social Security (Article 19 of the LGSS), which directly impacts workers' future pensions and benefits.

Key SMI Figures and Amounts in 2024

The amounts in force for the year 2024 (with retroactive effect from January 1, 2024) are as follows:

• Monthly SMI (in 14 payments): 1,134.00 euros gross per month.
• Monthly SMI (with prorated extra payments - 12 payments): 1,323.00 euros gross per month.
• Annual SMI: 15,876.00 euros gross per year.
• Daily SMI: 37.80 euros gross per day.
• SMI for casual and seasonal workers: 53.71 euros gross per working day (this amount includes the proportional part of Sundays, public holidays, and the two extraordinary bonuses to which every worker is entitled).
• SMI for domestic workers: 8.87 euros gross per hour actually worked (includes all remuneration concepts, holidays, and extraordinary payments).

It is essential to remember that these amounts are always gross. The corresponding IRPF (personal income tax) withholdings (if applicable) and Social Security contributions payable by the worker must be applied to these figures.

Who Does the SMI Apply To?

The SMI is intended to be universal, but in practice, its application is directed at specific sectors of the labor market:

1. *Workers not covered by a Convenio Colectivo:* Those sectors or companies that do not have their own or an applicable sectoral collective bargaining agreement are directly governed by the SMI as the mandatory minimum remuneration.
2. Workers with base salaries lower than the SMI: If a collective bargaining agreement establishes outdated salary tables that fall below the current SMI, the company is obliged by law to match its workers' salaries to reach, at least, the annual SMI.
3. Part-time workers: It is applied in strict proportion to the hours worked. If a person works part-time (20 hours per week), they will be entitled to receive, at least, 50% of the SMI (567.00 euros gross in 14 payments).
4. Domestic workers: Regulated by the special employment relationship of domestic service (servicio del hogar familiar), they are guaranteed the SMI per hour or per month, depending on the type of contract.
5. Foreign workers: Any foreign citizen working legally in Spain (as an employee) has exactly the same labor rights as a Spanish citizen, being fully protected by the SMI.

Practical Examples of SMI Calculation

To understand how the SMI works in daily reality, we will analyze two very common practical scenarios.

Example 1: Base Salary and Supplements (The Rule of Compensation and Absorption)

María works as an administrative assistant in a small moving company. Her collective bargaining agreement has not been updated for years. On her monthly payslip of 14 payments, María has the following concepts:

• Base salary: 950.00 euros.
• Plus de transporte (transport allowance - non-salary allowance): 80.00 euros.
• Plus de antigüedad (seniority bonus - salary supplement): 100.00 euros.

Is María earning the 2024 SMI? To calculate this, we must bear in mind that the SMI is compared against the sum of salary concepts (base salary + salary supplements). Non-salary concepts (such as the transport allowance, which compensates for travel expenses) do not count towards the SMI.

• Sum of María's salary concepts: 950.00 € (base salary) + 100.00 € (seniority) = 1,050.00 euros gross per month.
• Comparison: The monthly SMI for 2024 is 1,134.00 euros gross.
• Result: María's company is breaching the law. It must pay María an "adjustment to SMI" supplement of 84.00 euros per month to reach the mandatory 1,134.00 euros, regardless of the fact that she continues to receive her 80.00 euros transport allowance separately.

Example 2: Hourly Domestic Worker

Jean, a foreign resident with a work permit in Spain, is hired to perform cleaning and cooking duties in a private home for 12 hours a week.

• Minimum price per hour in 2024: 8.87 euros gross (which already includes holidays and extra payments).
• Approximate monthly calculation (the weekly working hours are multiplied by 4.33 weeks, which is the monthly average):
• 12 hours/week x 4.33 = 51.96 hours per month.
• 51.96 hours x 8.87 €/hour = 460.89 euros gross per month.
• Result: Jean's employer must pay him at least 460.89 euros gross per month for his 12-hour weekly schedule.

Practical Steps: What to Do If You Are Not Paid the SMI (Step-by-Step)

If you detect that your payslip is below the annual Salario Mínimo Interprofesional, you must act to claim your rights safely and legally. Follow these steps:

1. Review and gather evidence: Gather your employment contract, payslips for the last 12 months, and your bank statements showing the actual payments received from the company.
2. Calculate salary differences: Subtract what you have received from what you should have received according to the current SMI tables. Remember that the deadline to claim unpaid wages expires 12 months (one year) from the day they should have been received.
3. *Filing the Papeleta de Conciliación (Conciliation Petition): This is a mandatory step before going to court (in accordance with the Ley Reguladora de la Jurisdicción Social). You must present a conciliation petition before the mediation, arbitration, and conciliation service of your Comunidad Autónoma (Autonomous Community) (for example, the SMAC in Madrid or the CEMAC* in other regions). This action suspends the one-year expiration period.
4. The Conciliation Hearing: You will meet with the company representative in front of a public mediator. If the company admits the mistake and agrees to pay, an agreement (acta con avenencia) is signed, which has executive force.
5. *Lawsuit before the Juzgado de lo Social (Labor Court): If the company does not appear or no agreement is reached (acta sin avenencia*), you will have the remaining time of the expiration period to file a formal lawsuit before the Labor Courts.
6. *Complaint to the Inspección de Trabajo (Labor Inspectorate):* In parallel, you can file an anonymous or formal complaint with the Labor and Social Security Inspectorate so that an inspector can visit the company and verify compliance with salary and contribution obligations.

Mistakes You Should Avoid

• Confusing net salary with gross salary: The SMI is always set in gross amounts. It is a common mistake to demand that the net money arriving in your bank account be 1,134.00 euros, as legally established tax and Social Security withholdings must be deducted from that amount.
• Thinking that extra payments are an addition to the 12-payment SMI: If your contract establishes that your extraordinary payments are prorated, your monthly payslip must be 1,323.00 euros gross. You cannot demand 1,323.00 euros per month and, in addition, two extra payments of 1,134.00 euros.
• Accepting that payment in kind reduces the cash SMI: The law strictly prohibits payments in kind (such as accommodation, food, or a company car) from reducing the amount of the minimum wage in cash. You must always receive, at minimum, the full SMI in cash or bank transfer.
• Letting the claim deadlines pass: The right to claim unpaid wages expires after one year. If your company has been paying you below the SMI for two years, legally you can only retroactively claim the differences for the last 12 months.

Frequently Asked Questions (FAQ)

Is the SMI the same for all sectors of activity in Spain?

Yes, the SMI is "interprofessional," which means it applies uniformly to all sectors of the economy (agriculture, industry, services, and construction). However, if your sector has a convenio colectivo, this usually sets sector-specific minimum wages that are higher than the SMI, which are mandatory for the company.

Can the Salario Mínimo Interprofesional be seized?

As a general rule, no. According to Article 607 of the Ley de Enjuiciamiento Civil (Civil Procedure Law), the minimum interprofessional wage cannot be seized. Only the part of the salary that exceeds this amount can be seized, applying a scale of percentages. The only exception to this rule is the payment of child support or spousal maintenance decreed by a judge in divorce or separation proceedings.

If I work part-time, am I entitled to the full SMI?

No. The SMI is calculated for a full-time working week (usually 40 hours per week). If your working hours are lower, your minimum wage will be reduced in strict proportion to the hours you work. For example, if you work 30 hours per week, your reference SMI will be 75% of the full SMI.

What happens if my convenio colectivo sets a salary lower than the SMI?

The state regulation of the SMI acts as a mandatory minimum standard. This means that any provision in a collective bargaining agreement or employment contract that sets a salary lower than the SMI is automatically invalidated and replaced by law with the current SMI amount.

Does the SMI affect unemployment benefits or subsidies?

Yes, indirectly. Many state aids and subsidies (such as the unemployment subsidy for people over 52) require as an eligibility condition that the beneficiary's income does not exceed 75% of the SMI, excluding extraordinary payments. Therefore, when the SMI rises, the income limit allowed to access these aids also rises.

In Summary

• The SMI in 2024 is set at 1,134.00 euros gross per month in 14 payments (15,876.00 euros annually).
• It applies to all employees, including domestic workers, seasonal workers, and foreign workers with a contract.
• Non-salary concepts (such as transport allowances or per diems) do not count towards reaching the minimum SMI.
• The deadline to legally claim any salary difference or non-payment regarding the SMI is 12 months.
• The cash SMI cannot be reduced under any circumstances by payments in kind (such as accommodation or board).

General legal information, not personalised legal advice. For your specific situation, ask your question for free at AbogadoAI — answers grounded in Spanish law (BOE), in English.

This is general information, not legal advice. Verify on the BOE or consult a lawyer for your specific case.