Can child support be modified?
How the answer differs across 5 jurisdictions
CanadaFull article Yes, you can ask a court to modify your spousal support order if there has been a material change in circumstances affecting either party.
AustraliaFull article Yes, you can apply to change your child support amount if your income has dropped significantly — the Child Support Agency (Services Australia) can reassess your assessment based on current income.
US-CaliforniaFull article Yes, child support in California can be modified if there's a significant change in income or circumstances, and either parent can request a review.
US-New YorkFull article Yes, child support in New York can be modified if there's a substantial change in circumstances, such as a 15% income change or passage of 3 years since the order.
South KoreaFull article No, remarriage of a former spouse does not automatically terminate or alter their child support obligation under South Korean law.
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CanadaCan I modify my spousal support order if my ex-spouse's circumstances change?AustraliaCan I get my child support amount changed because my income has dropped?US-CaliforniaCan child support be modified if my income changes?US-New YorkCan child support be modified if circumstances change?South KoreaDoes a former spouse's child support obligation continue?Not legal advice. This article is general information based on publicly available sources, written for educational purposes. Laws change and individual situations vary. Consult a licensed attorney in your jurisdiction before acting on anything you read here. Last reviewed: June 2026.