Child support on €5,000 net a month: when the child turns 18
Checked by Radif Partners · Editorial policy
On €5,000 net a month, support for an only child with standard visiting reaches €587 under the Ministry of Justice table, €7,044 a year. While the child is a minor it is fully deductible for the paying parent. But once the child is an adult who is not attached to the parent’s tax household and lives elsewhere, the deduction is capped at €6,855 a year per child, €571 a month. Table support exceeds that cap from €4,884 of income with standard visiting: on €5,000, €189 a year is no longer deductible, and the young adult declares only the deducted part. Support itself continues until the child is self-supporting. The calculator below gives the figures at €5,000. Over a full year, the table means €7,044 for one child and €12,000 for two with standard visiting.
Support on €5,000 net a month
Total support per month
€587
| Per child | €587 |
| Share of income | 11.7 % |
| ASF possible for a single parent | no |
The deduction cap for an adult child
For 2025 income, support paid to an adult child who is not attached to the household is deductible up to €6,855 a year. On €5,000, table support for one child (€7,044 a year) exceeds that cap. The parent then chooses: deduct capped support, or attach the child to their tax household, which rules out the deduction. The better option depends on their marginal rate and the young adult’s income.
Support per child at this income
| Children | Reduced | Standard | Shared | Standard total |
|---|---|---|---|---|
| 1 | €783 | €587 | €391 | €587 |
| 2 | €674 | €500 | €339 | €1,000 |
| 3 | €578 | €435 | €291 | €1,304 |
| 4 | €509 | €383 | €257 | €1,530 |
Higher incomes: the form of support matters
With higher incomes, support often takes a mixed form: a monthly amount plus direct payment of some costs, such as university or student accommodation, as service-public.fr describes. For an adult child, paying the rent on a studio directly and giving a smaller cash amount can be clearer for everyone; both are deductible together, within the cap.
These are the Ministry of Justice table amounts; a judge can depart from them depending on the child’s needs and each parent’s costs. The full calculator adds the ASF and the tax effect for your exact situation.