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HomeGuidesLawFamily lawChild support

Until when is child support paid?

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Child support calculator for a child — estimated amount

Table of contents

  • What child support is and when it applies
  • How long the obligation lasts
  • What “self‑supporting” means in practice
  • Support for an adult child
  • When the obligation may end despite studying
  • Child with disability or illness
  • When the obligation ends
  • How to prove a change in circumstances
  • How courts set the amount
  • Common mistakes
  • Quick checklist for a parent
  • Related guides
  • Child support calculator
  • Sources
  • Frequently asked questions (FAQ)

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.

What child support is and when it applies

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.

How long the obligation lasts

The obligation lasts as long as the child is not self‑supporting. Courts consider, among other things:

  • whether the child is genuinely studying,
  • whether they work or have real earning capacity,
  • the actual costs of maintenance and development,
  • the parents’ financial situation.

There is no fixed age limit.

What “self‑supporting” means in practice

Self‑support means a real ability to cover one’s own living costs, not just turning 18. Courts look at whether the child:

  • has stable income or realistic earning capacity,
  • genuinely continues education,
  • faces typical, justified costs for their age and situation.

It is about real independence, not a formal status.

Support for an adult child

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.

When the obligation may end despite studying

Studying does not automatically extend the obligation. Courts may consider ending it if, for example:

  • education is only nominal or repeatedly interrupted,
  • there is no real progress,
  • the child can work but refuses without good reason.

Each case is assessed individually.

Child with disability or illness

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.

When the obligation ends

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.

How to prove a change in circumstances

Courts rely on evidence. Typical documents include:

  • proof of employment or income of the child,
  • documents showing completion of education,
  • lists of the parent’s income and expenses,
  • communication showing the child refused work or training.

How courts set the amount

Courts assess needs and capacity. Detailed criteria: Child support amounts: criteria and rules.

Common mistakes

  • relying only on age (“they are 18”),
  • no evidence of the child’s independence,
  • ignoring education or health‑related costs,
  • confusing reduction with termination.

Quick checklist for a parent

  • Is the child truly self‑supporting?
  • Do I have evidence of the change?
  • Do I seek reduction or termination?
  • Do I have a clear cost breakdown and income data?

Related guides

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.

Child support calculator

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.

Sources

  • Family and Guardianship Code (ISAP)
  • Ministry of Justice - official information

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  • Child support calculator for a child — estimated amount

Frequently asked questions (FAQ)

Do kiedy płaci się alimenty na dziecko?+
Zasadniczo do momentu, gdy dziecko może utrzymać się samodzielnie; wiek jest mniej ważny niż samodzielność.
Czy pełnoletność kończy obowiązek alimentacyjny?+
Nie zawsze. Pełnoletność nie kończy automatycznie obowiązku, jeśli dziecko nadal się uczy lub nie ma możliwości samodzielnego utrzymania.
Kiedy można uchylić alimenty?+
Gdy ustały przesłanki obowiązku, np. dziecko uzyskało samodzielność finansową.

Related calculators

  • Child support calculator for a child — estimated amount

Related guides

  • Child support: who is entitled and when
  • Child support for an adult child
  • Child support amounts: criteria and rules
  • Child support petition: how to file step by step
  • Increase of child support: when and how
  • Reduction or termination of child support

Choose a law firm for your case

Compare firms by specialization, city, and ratings. You contact the selected firm directly.

  • Tax Guard

    Poznan5.0 (1 review)

    Doradztwo podatkowe i legal support dla biznesu: VAT, CIT, kontrole, umowy B2B.

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    Sprawy rodzinne i cywilne: rozwod, alimenty, podzial majatku, reprezentacja w sadzie.

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  • Civil Pro

    Lodz5.0 (1 review)

    Spory cywilne, dochodzenie roszczen, umowy i sprawy mieszkaniowe.

    Practice areasCivil lawReal estate law
Open law firms directory

Choose a law firm for your case

Compare firms by specialization, city, and ratings. You contact the selected firm directly.

Kancelaria Alfa

Warszawa5.0 (1 review)

Sprawy rodzinne i cywilne: rozwod, alimenty, podzial majatku, reprezentacja w sadzie.

Practice areasFamily lawCivil law
AddressRegulska 40

Lex Biz Kancelaria

Krakow5.0 (1 review)

Obsluga JDG i spolek: umowy, podatki, kontrole, sprawy pracownicze.

Practice areasLabor lawTax law

Nieruchomosci Partner

Gdansk5.0 (1 review)

Zakup i sprzedaz nieruchomosci, umowy deweloperskie, najem, spory o nieruchomosci.

Practice areasCivil lawReal estate law

Tax Guard

Poznan5.0 (1 review)

Doradztwo podatkowe i legal support dla biznesu: VAT, CIT, kontrole, umowy B2B.

Practice areasTax lawBusiness law

Civil Pro

Lodz5.0 (1 review)

Spory cywilne, dochodzenie roszczen, umowy i sprawy mieszkaniowe.

Practice areasCivil lawReal estate law

Familia Law

Wroclaw5.0 (1 review)

Prawo rodzinne i pracownicze, w tym sprawy cudzoziemcow pracujacych w Polsce.

Practice areasFamily lawLabor law
Open law firms directory