The Minimum Interprofessional Wage (SMI) is one of the figures that generates the most headlines every time it's updated, but its real effect on paychecks goes beyond simply setting a wage floor: it influences other aspects of your working situation that often go unnoticed.
What the SMI is
The SMI is the minimum pay a worker can receive for their working hours, regardless of their job category, contract type, or sector. It's set by the government each year through a Royal Decree, generally after a negotiation process (though not always an agreement) with social partners (unions and employer associations).
How it's expressed: monthly, daily, and annual figures
The SMI is officially set on a daily and monthly basis, but the figure most commonly cited publicly is the monthly amount spread over 14 payments. It's important not to confuse this figure with the minimum wage you'd see on a contract paid in 12 installments: if your company pays you in 12 installments, the equivalent monthly figure will be different, even though the annual total must always meet the legal minimum.
Why your collective agreement can set a wage above the SMI
The SMI is a floor, not a general reference salary. Most sector-wide or company collective agreements set base salaries above the SMI for the various job categories they cover. Just because your agreement doesn't explicitly mention the SMI doesn't mean you can be paid less: if the salary set by your agreement or contract were below the current SMI, the SMI would always prevail, since it's a mandatory minimum-standards rule.
Effects of the SMI beyond your own salary
The SMI doesn't only affect people earning that exact figure. It's also used as a reference to calculate:
- The wage garnishment threshold in case of debts (there's a minimum amount that can't be seized, tied to the SMI).
- Certain eligibility requirements for social assistance and benefits.
- Exemption or discount thresholds on some social security contributions for certain groups.
How to check whether your salary meets the legal minimum
To check whether your salary complies with the SMI, you should look at your total annual gross salary, not just a single month's payslip, especially if you're paid in 12 installments with prorated extra payments or if you receive variable pay supplements. Comparing monthly figures between different payment structures (12 vs. 14 payments) without adjusting for this can lead to wrong conclusions about whether the legal minimum is being met.
Calculate your exact take-home pay
Our net salary calculator lets you see, starting from your gross annual salary, how much you actually take home each month once Social Security contributions and income tax withholding are applied.