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Does Child Support Increase Automatically, or Do I Have to Request a Modification?

Quick answer

A child support order stays at the same amount until a court changes it, no matter how much time passes or how much either parent's income moves. Here is how increases actually happen and what it takes to request one.

Last updated June 2026

Child support does not go up on its own

Once a judge signs a child support order, that number is locked in until a new order replaces it. The amount does not rise with inflation, a parent's raise, or the child getting older unless someone formally asks for a change.

This surprises a lot of parents. Even if the paying parent's income doubles, the order stays the same until one parent requests a modification and a court (or the state child support agency through its review process) issues a new order. Informal agreements between parents to pay more or less are not enforceable and do not change what is legally owed.

Cost of living adjustments are the one exception

Some states, and some individual orders, include a cost of living adjustment, often called a COLA clause. When one applies, the support amount is adjusted periodically based on an inflation index, without either parent having to go back to court for that adjustment.

Not every state offers this, and even in states that do, it usually only applies if the clause is written into your order or your case qualifies under state rules. Read your order carefully, and if you are not sure, ask your state child support agency whether your case gets automatic adjustments. A COLA is typically a small percentage bump, so if circumstances have changed significantly, a full modification is still the right tool.

How to request a modification

There are generally two paths. You can file a modification request directly with the family court that issued your order, or, if your case is handled by the state child support agency, you can ask the agency to review the order. Either way, the change only becomes official when a new court order is signed, so yes, modifications do ultimately require a court order.

Most states require a substantial change in circumstances to modify, such as a significant change in either parent's income, a job loss, a change in the parenting schedule, or new costs like health insurance or childcare. If your case receives services from the state child support agency, federal rules also give you the right to request a review of your order periodically, commonly every three years, even without a major change.

The modification amount is usually calculated with the same guideline formula used for the original order, just with updated numbers. A new order generally cannot reach back before the date the request was filed, which is why it pays to file promptly rather than wait.

What if your income changes while the request is pending

Courts set support based on current circumstances, typically your situation as of the hearing, not the day you filed. If you filed based on being out of work and then landed a job, tell the court and update your income information before the hearing.

Being upfront protects you. Judges see income changes all the time, and a parent who volunteers the update comes across far better than one whose new job surfaces some other way. The order will simply be calculated on the real, current numbers, which is what the guideline is designed to do.

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This page is general legal information, not legal advice, and does not create an attorney–client relationship. Laws and local rules vary and change. For advice about your situation, consult a licensed family-law attorney in your state.

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