The 2026 declaration campaign begins on April 9. For millions of households, exercise is often a source of anxiety. However, when properly understood, this annual step makes it possible to activate significant optimization levers. Here’s what you need to remember for your declaration of income received in 2025.
Calendar and procedures: points to watch out for
1. What are the deadlines for validating my declaration in 2026?
The schedule depends on your department of residence for online declarations:
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May 21, 2026 : départements 01 à 19 et non-résidents.
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May 28, 2026 : départements 20 à 54.
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June 4, 2026: départements 55 à 976.
The paper version must be submitted no later than May 14, 2026.
2. Am I affected by automatic declaration?
If your tax situation has not changed and the tax authorities have all your data, you have no action to take. However, vigilance is required: check that your deductible expenses (donations, alimony) are present, because they are never pre-filled.
3. Le barème de l’impôt at-il été revalorisé?
Yes, but in moderation. To take into account the evolution of prices in 2025, the sections of the progressive scale are indexed up to 0,9 %. The first tax bracket (11%) is now only triggered beyond 11 600 € of income per share.
Income and deductions: optimize your tax net
4. Is overtime always exempt?
The system remains a pillar of purchasing power. Your overtime hours worked in 2025 are exempt from income tax within the limit of 7 500 € net annual. Only the possible surplus must be added to your taxable income.
5. How do I declare my teleworking expenses?
If your employer pays you a flat-rate allowance, it is tax-exempt up to a limit of €2.70 per day of teleworking, with an annual ceiling raised to 712 €. If you opt for actual expenses, you can deduct your actual expenses if they are more favorable, with supporting documentation.
6. What is the new ceiling for the “Coluche donation”?
This is the major new feature: if the ceiling was historically €1,000, it was increased to 2 000 € for payments made since October 14, 2025. These donations entitle you to an exceptional tax reduction of 75 %.
7. Childcare costs: what advantage in 2026?
The tax credit for childcare costs for children under 6 years old (born in 2019 or later) is maintained at 50%. Expenditures are retained within the limit of €3,500 per child, which allows a direct tax reduction of up to 1 750 €.
Specific situations and fixes
8. I received tips, are they taxable?
The exemption from tips (by card or cash) for employees earning less than 1.6 SMIC has been officially extended until 2028. You do not have to declare them if you meet this remuneration condition.
9. Can I still correct my declaration after validation?
Yes, the right to error applies. You can modify your declaration online as many times as necessary before the deadline. Then, a specific correction service will be accessible via your particular space from August to December 2026.
10. Où déclarer mes réductions et crédits d’impôt ?
For all the advantages linked to donations, employment at home or the energy transition, this is the attached form 2042-RICI which must be completed with care. An oversight here can be costly: check each box before final sending.
