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JDF 1403

i How to Modify Child Support

Colorado · Colorado Judicial Branch · Effective July 1, 2026

This guide explains the process for asking the court to change an existing court order for child support. It outlines what information is needed and the steps to take depending on whether both parents agree on the new amount.

Open the official PDFfrom Colorado Judicial Branch

Where this fits in a case

After judgment

Stage: After judgment

This guide is used when a person already has a court order for child support and wants to ask the court to change the amount, usually because there has been a big change in the family's situation.

Either party may file.

Common questions

What must I show to ask to change child support?
You must show a "substantial and continuing" change in circumstances, which must be a 10% increase or decrease from the current order. Examples include a big change in either parent's income.
Do I need to file a fee?
The instructions mention visiting a webpage for more information about fees and fee waivers.
If I file, what happens next?
Within 49 days of filing, the Court will review the matter to see if it will be scheduled for a hearing or if it can be handled with just the paperwork provided.

Revision history

No changes recorded since we started tracking this form on October 10, 2026. The current version took effect July 1, 2026.

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