SMIC 39H: how to calculate gross and net ?
05 October 2026 · 3 min reading time
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For a 39-hour-per-week contract paid at the French minimum wage (SMIC), the salary is higher than the monthly SMIC calculated on a 35-hour basis. The 4 hours worked beyond the statutory working time are treated as overtime when they are paid as such. With the current SMIC, an employee working 39 hours therefore earns around €2,133.74 gross per month with a 25% overtime premium.
| 39-hour SMIC in 2026 | Amount |
|---|---|
| Gross hourly SMIC | €12.31 |
| Monthly working time for 39h | 169 h |
| Base salary for 35h | €1,867.02 gross |
| Monthly overtime hours | 17.33 h |
| Hourly rate with 25% overtime premium | €15.39 gross |
| Overtime pay | around €266.72 gross |
| 39-hour SMIC gross salary | around €2,133.74 per month |
| Estimated 39-hour SMIC net salary | around €1,720 per month |
The net amount is only an estimate. It depends in particular on the employee contributions that apply and does not include income tax withholding.
What is the SMIC salary for 39 hours in 2026?
An employee working 39 hours per week at the SMIC earns around €2,133.74 gross per month when the 4 hours worked beyond 35 hours are paid with a 25% overtime premium.
A 39-hour contract represents an average of 169 working hours per month:
- 151.67 hours corresponding to the statutory 35-hour working week;
- around 17.33 overtime hours per month.
The salary therefore cannot simply be calculated as 169 × €12.31. Hours worked beyond 35 hours must be taken into account with the applicable overtime premium when they qualify as overtime.
How is the SMIC calculated for 39 hours?
The calculation of a 39-hour SMIC salary starts with the monthly salary corresponding to 35 hours, to which the pay for the 4 overtime hours worked each week is added.
Calculating the base salary for 35 hours
Since 1 June 2026, the gross monthly SMIC has been set at:
€1,867.02 gross for 151.67 hours per month.
Calculating overtime
Four overtime hours per week represent an average of:
4 × 52 ÷ 12 = 17.33 overtime hours per month.
With a 25% overtime premium, the applicable hourly rate is around:
€12.31 × 1.25 = €15.39 gross.
The overtime pay therefore amounts to:
17.33 × €15.39 = around €266.72 gross per month.
Calculating the gross salary for 39 hours
The base salary and overtime pay are then added together:
€1,867.02 + €266.72 = around €2,133.74 gross per month.
An employee paid at the SMIC and working 39 hours per week therefore earns around €2,134 gross per month in this situation.
What is the net SMIC salary for 39 hours in 2026?
The net SMIC salary for 39 hours is around €1,720 per month before income tax withholding when the 4 overtime hours are paid with a 25% premium.
However, the same gross-to-net ratio used for a standard salary should not simply be applied to the gross salary of €2,133.74.
Overtime benefits from a reduction in certain employee social security contributions, which slightly increases the net amount received.
The actual salary paid may therefore vary depending on the employee's situation, the company, the applicable collective agreement and the contributions shown on the payslip.
What is the salary difference between 35 and 39 hours at the SMIC?
Moving from 35 to 39 hours represents 4 additional hours per week, or around 17.33 overtime hours each month.
| Working time | Gross monthly salary |
|---|---|
| 35 hours | €1,867.02 |
| 39 hours with overtime paid at +25% | around €2,133.74 |
| Difference | around €266.72 gross |
The difference is not only due to the four additional hours worked. The overtime premium also increases the corresponding pay.
Are the hours between 35h and 39h always paid with a 25% premium?
The statutory working time in France is 35 hours per week. Under a standard working arrangement, the hours worked between the 36th and the 39th hour are therefore overtime.
Unless different provisions are set by a collective agreement, the first 8 overtime hours worked during the week are paid with a 25% premium.
However, a collective agreement may provide for a different overtime premium, which cannot be lower than 10%.
The amount of €2,133.74 gross per month presented in this article therefore corresponds to an employee paid at the SMIC whose four weekly overtime hours are paid with a 25% premium.
How many monthly hours does a 39-hour week represent?
A 39-hour working week represents an average of 169 hours per month.
The calculation is:
39 × 52 ÷ 12 = 169 hours per month.
By comparison, a 35-hour contract represents around 151.67 hours per month.
The difference between the two working arrangements is therefore around 17.33 hours per month.
Can you work 39 hours without being paid 4 overtime hours every week?
A 39-hour working arrangement does not necessarily mean that four overtime hours are paid every week.
Some companies have working-time arrangements allowing employees to work more hours during certain weeks in return for rest days or RTT days.
It is therefore important to distinguish between:
- a contract in which the hours worked between 35h and 39h are paid as overtime;
- a 39-hour arrangement that is partly compensated by rest days.
The employment contract, company agreement and applicable collective agreement determine which arrangement applies.
How can you check a 39-hour SMIC salary on a payslip?
On the payslip of an employee working 39 hours with paid overtime, the salary is generally split between the base salary and overtime pay.
You may typically find:
- a base of 151.67 hours corresponding to the 35-hour working week;
- around 17.33 overtime hours;
- the applicable hourly rate;
- the overtime premium rate;
- the corresponding gross amount.
With a gross hourly SMIC of €12.31 and a 25% overtime premium, the hourly overtime rate is around €15.39 gross.
This breakdown makes it easier to check that the hours worked beyond 35 hours have been correctly included in the salary.
Does the 39-hour SMIC increase when the SMIC is raised?
An increase in the SMIC also leads to an increase in the minimum salary corresponding to a 39-hour working week.
The base salary increases, as does the value of overtime, since overtime pay is calculated using the current hourly SMIC.
The 39-hour SMIC amount must therefore be recalculated each time the SMIC is increased.
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