Income Tax - Adult Child - You're the parents

Verified 17 avril 2024 - Directorate for Legal and Administrative Information (Prime Minister)

Your situation

  • You're the parents
  • Your adult child is single
  • Your adult child is attached to your return
  • Your child is 21 years old or younger
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The rules differ depending on your child's situation.

Your adult child is attached to your return

Menstrual periods depend on your child's age and situation.

Your child is under 21 years of age

Your child can be attached to your tax shelter if he is aged under 21 at 1er January 2023.

The attachment of your adult child allows you to benefit from a increase in the number of shares of family quotient.

The young person does not have a personal income tax return to file.

However, you have to include their income on your own tax return.

But if you are paying maintenance to him, you can not deduct it of your taxable income.

If your adult child does not live with you, you must include the child's address in your return.

Who can help me?

Find who can answer your questions in your region

  • For general information

    Tax Information Service

    By telephone:

    0809 401 401

    Monday to Friday from 8:30 am to 7 pm, excluding public holidays.

    Free service + call price

  • To contact the local service managing your folder

    Department in charge of taxes (treasury, tax department...)

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