Calculate in 30 seconds
Use our calculator — result in seconds, no registration required.
Child support calculator for a child — estimated amountTable of contents
The maintenance obligation does not end automatically when a child turns 18. The key question is whether the child can be self‑supporting. Courts therefore look at the child’s real situation and the parent’s capacity, not age alone.
Child support covers the child’s maintenance and development. The duty arises when the child cannot support themselves or their needs are not met by the other parent. Basics: Maintenance obligation — what it is.
The obligation lasts as long as the child is not self‑supporting. Courts consider, among other things:
There is no fixed age limit.
Self‑support means a real ability to cover one’s own living costs, not just turning 18. Courts look at whether the child:
It is about real independence, not a formal status.
After 18, the duty may continue if the child still studies or cannot support themselves. Courts assess the reality of education and the child’s situation. See: Child support for an adult child.
Studying does not automatically extend the obligation. Courts may consider ending it if, for example:
Each case is assessed individually.
If a child has long‑term health limitations that prevent self‑support, the obligation can last longer, regardless of age. Courts assess the actual impact on daily functioning and ability to work.
Most often when the child becomes financially independent. In practice, ending the duty usually requires proving a change in circumstances, such as stable work, completed education, or lack of justified costs.
To end or reduce support, you usually need a court claim: Reduction or termination of child support.
Courts rely on evidence. Typical documents include:
Courts assess needs and capacity. Detailed criteria: Child support amounts: criteria and rules.
If you are filing the initial petition, see: Child support petition: how to file step by step. For changing the amount, see: Increase of child support — when and how.
You can use the child support calculator as a reference point, but it is not binding and should be compared with real costs and evidence.
Try it in practice
Use our calculator — result in seconds, no registration required.
Choose a law firm for your case
Compare firms by specialization, city, and ratings. You contact the selected firm directly.
Kancelaria Alfa
Sprawy rodzinne i cywilne: rozwod, alimenty, podzial majatku, reprezentacja w sadzie.
Lex Biz Kancelaria
Obsluga JDG i spolek: umowy, podatki, kontrole, sprawy pracownicze.
Nieruchomosci Partner
Zakup i sprzedaz nieruchomosci, umowy deweloperskie, najem, spory o nieruchomosci.
Tax Guard
Doradztwo podatkowe i legal support dla biznesu: VAT, CIT, kontrole, umowy B2B.
Civil Pro
Spory cywilne, dochodzenie roszczen, umowy i sprawy mieszkaniowe.
Familia Law
Prawo rodzinne i pracownicze, w tym sprawy cudzoziemcow pracujacych w Polsce.