SMIC 39H: how to calculate gross and net ?
24 April 2026 · 3 min reading time
Join Staffmatch
See job offersThe 39-hour SMIC is used to estimate the minimum wage of an employee working 39 hours per week. Since the legal working time remains set at 35 hours, any hours worked beyond that must be paid as overtime, with a premium provided by law or by the applicable collective agreement.
In 2026, the amount of the gross 39-hour SMIC therefore depends on the hourly SMIC, the number of monthly overtime hours and the applicable overtime premium. Here is how to calculate the gross and net salary for a 39-hour week, understand the possible exemptions and check the relevant lines on the payslip.
Key takeaways
- For a full-time employee on the 39-hour SMIC in 2026, the monthly salary reaches around €2,083.46 gross, as it combines the 35-hour SMIC with 17.33 overtime hours increased by 25%.
- The monthly net SMIC for 39 hours is around €1,629, although this amount may vary depending on the employee’s profile and the relief applicable to overtime.
- On the payslip, the base salary, 151.67 hours, and overtime hours usually appear on two separate lines.
What is the 39-hour SMIC?
The 39-hour SMIC is not an official amount set separately by law. It refers to the minimum wage applicable to an employee paid at SMIC level who works 39 hours per week.
The legal working time remains set at 35 hours. Hours worked beyond that are therefore considered overtime and must be paid with a premium, unless a specific provision is set by an agreement or collective bargaining agreement.
The 39-hour SMIC therefore corresponds to the monthly 35-hour SMIC, plus the remuneration for the overtime hours worked each month.
Calculation of the gross 39-hour SMIC in 2026
To calculate the gross 39-hour SMIC, you need to start from the legal minimum wage for 35 hours, then add the remuneration for the 4 overtime hours worked each week. These overtime hours must include the legal 25% premium, unless a more favorable provision is set by the company’s applicable collective agreement.
Step 1: the basic 35-hour SMIC
In 2026, the gross hourly SMIC is set at €12.02.
Step 2: monthly overtime hours
An employee working 39 hours per week works:
- 4 hours × 52 weeks ÷ 12 months = 17.33 overtime hours per month.
Step 3: applying the premium
Each overtime hour is paid with a 25% premium:
- Normal hourly rate: €12.02
- Increased hourly rate: €12.02 × 1.25 = €15.02
- Amount of overtime: 17.33 × €15.02 = €260.30 gross
Final result
By adding the base salary and overtime:
- Gross 35-hour salary: €1,823.03
- Overtime: €260.30
- Gross 39-hour SMIC = €2,083.33 per month, or almost €25,000 gross per year.
This calculation shows that an employee on the 39-hour SMIC earns more than €260 gross extra each month compared with an employee working 35 hours.
Calculation of the net 39-hour SMIC in 2025
While the gross salary helps understand the calculation basis shown on the payslip, what employees are usually most interested in is the net salary, meaning the amount actually paid into their bank account after social security contributions have been deducted.
In France, for a private-sector employee, around 22% of the gross salary is generally deducted for contributions, including pension, health insurance, unemployment insurance and CSG-CRDS. This percentage may vary slightly depending on the situation, such as executive or non-executive status, possible exemptions, company health insurance, and so on.
Step 1: start from the gross salary
The gross 39-hour SMIC in 2026 is €2,083.33 per month.
Step 2: apply social security contributions
€2,083.33 × 0.79 ≈ €1,645.83 net per month
Step 3: compare with the 35-hour SMIC
In 2026, the net 35-hour SMIC is around €1,443.11.
An employee working 39 hours therefore earns nearly €203 net extra each month, or more than €2,432 net over the year.
This difference shows the concrete impact of overtime on purchasing power: without changing qualification level, an employee can receive a significantly higher remuneration by moving from 35 to 39 hours per week.
39-hour SMIC and exemptions
For several years, overtime has benefited from an advantageous tax and social security regime. The aim is to encourage the use of overtime without increasing the tax burden on employees. For those working 39 hours per week at SMIC level, this represents a significant gain in net salary.
Exemption from social security contributions
Overtime hours are largely exempt from certain employee social security contributions. In practice, this means that the net amount received is closer to the gross amount shown.
For example, part of the €260.30 gross overtime calculated for the 39-hour SMIC may be received almost entirely by the employee.
Income tax exemption
In addition to the social security exemption, overtime may be exempt from income tax, up to an annual limit of €7,500. This means that for an employee on the 39-hour SMIC, almost all overtime will not be taxed, which further improves the actual net salary received.
A concrete advantage for the 39-hour SMIC
In practice, thanks to these exemptions, the net 39-hour SMIC may be slightly higher than theoretical estimates, around €1,629 net per month. The gain depends on each employee’s tax situation, but it is a real boost for purchasing power.
In other words, working 39 hours at SMIC level does not only result in a higher gross salary: it also means a more optimized net salary, because overtime is favored from both a tax and social security perspective.
39-hour SMIC and collective agreements: in which jobs?
Working 39 hours is not specific to a single sector. It is most often found where activity varies depending on the season, traffic peaks or extended opening hours. Here are a few common examples, to be checked company by company:
- Hotels and restaurants: wide working hours, split shifts, weekends. Depending on the applicable agreement, the 4 hours beyond 35 hours are increased, often by 25%, or compensated with rest.
- Retail and supermarkets: late openings, Sundays, inventories. Some agreements provide for regulated overtime and sometimes schedule-related bonuses.
- Private security / guarding: shift work, nights and weekends; collective agreements organize premiums and compensatory rest.
- Cleaning / multiservices: early-morning or late-evening worksites; 39-hour arrangements may be used with rest or paid overtime.
- Construction / maintenance: worksites with deadlines and travel constraints; hours beyond 35 are often increased and may come with compensatory rest.
- Transport / logistics: planning and delivery constraints; agreements set specific rules, including ceilings, rest and premiums.
- Tourism / events: strong seasonality; use of overtime or RTT days depending on the agreement.
What changes depending on your collective agreement, IDCC?
Each collective agreement, identified by its IDCC, can adjust the rules. Check your payslip or ask HR about:
- Overtime premium rates, with the legal minimum of +25%, then +50%, and sometimes more favorable rates.
- Compensatory rest, which may replace payment in full or in part.
- Limits, such as the annual overtime quota and maximum working hours.
- Working time organization, such as paid 39 hours, 39 hours with RTT days, modulation or annualization.
- Schedule-related bonuses, such as night work, Sundays, public holidays, meal or transport allowances.
- Night work: if you combine 39 hours with night work, check the specific premiums.
Tip: Find the IDCC on your payslip, read the company agreement if there is one, and compare the premium rate, compensatory rest and RTT rules. Two companies in the same sector may apply different rules.
💡 Special cases:
Similar articles
Latest News
SMIC hôtelier 2025: hourly rate, gross and net amounts
31 March 2025 · 4 min reading time
SMIC hôtelier 2025: What changes after November 2024? Discover hourly rates, calculations for 39-hour workweeks, and tips for applying the HCR convention. Includes tiered salary grids.
Labor Law
SMIC 2026 : Net, Gross, Monthly and Annual Amounts
07 May 2026 · 7 min reading time
SMIC 2025: hourly, monthly and annual amounts, gross and net … here’s everything you need to know about the minimum wage!
Labor Law
Minimum Wage and Part-Time Work: What You Need to Know in 2025
02 March 2026 · 4 min reading time
Part-Time Work and Minimum Wage: Know Your Rights, How Hourly Pay Is Calculated in 2026, Common Pitfalls to Avoid, and Available Income Support Options.
Become a temp worker with Staffmatch!
OUR MOBILE APPS
Download the temp worker app
Download the business appDownload our temp worker appDownload our business app
Download the temp worker appDownload the business appDownload our temp worker appDownload our business app