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Income tax (Tables)
12 Months Ended
Dec. 31, 2024
Income tax  
Schedule of income tax expense

​

​

​

​

​

​

​

​

​

​

    

Year ended December 31,

​

(in thousands of euros)

​

2022

​

2023

​

2024

​

Loss before tax

 

(54,294)

 

(109,819)

 

(183,899)

​

Theoretical tax rate

 

25.0

%

25.0

%

25.00

%

Tax benefit at theoretical rate

 

13,574

 

27,455

 

45,975

​

Tax credits

 

1,432

 

1,794

 

1,584

​

Permanent differences

 

(305)

 

478

 

(16,275)

​

Other permanent differences

​

(428)

​

(975)

​

(860)

​

Temporary differences

 

—

 

(30)

 

(34)

​

Tax rate differences

 

55

 

83

 

100

​

Non recognition of deferred tax assets related to tax losses and temporary differences

 

(14,309)

 

(28,930)

 

(30,569)

​

Impairment loss of deferred tax asset

 

—

 

(481)

 

(234)

​

Actual income tax benefit

 

20

 

(607)

 

(313)

​

of which

 

  

 

  

 

​

​

Current taxes

 

(34)

 

(62)

 

(305)

​

Deferred taxes

 

54

 

(545)

 

(8)

​

Effective tax rate

 

0.06

%

0.06

%

0.17

%