How to Modify Child Support in Minnesota
Reviewed by DocDraft Legal Team · Minnesota · Last updated September 21, 2026
In Minnesota, a child support modification is a court or county agency changing the amount of an existing child support order after your circumstances change, and the state presumes the change is substantial once a recalculation under the guidelines runs at least 20 percent and at least 75 dollars per month higher or lower than your current order (Minn. Stat. 518A.39). Child support in Minnesota is set by a statewide guideline that combines both parents' gross incomes and parenting time (Minn. Stat. 518A.35), so a job loss, a raise, or a new parenting schedule can make the current amount unreasonable and unfair. You can ask for a change in two ways. You can file a Motion to Modify Support (Form CSX202) with the district court in the county that handles your case, or, if the county child support office manages your case, you can ask that office to review your order. Either path applies the same 20 percent and 75 dollar presumption. A modification takes effect only back to the date the other parent is served with notice of your motion, not to when your circumstances changed, so support that already came due generally cannot be reduced (Minn. Stat. 518A.39). You can also request a review about every three years, and most Minnesota orders carry an automatic cost-of-living adjustment. Keep paying your current order until it is changed. Attorney review of your filing is available through DocDraft.
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Where are you with changing your child support order?
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How do I modify child support in Minnesota?
File a Motion to Modify Support (Form CSX202) with the district court in the county that issued your order, or ask your county child support office to review it. You must show a substantial change in circumstances, which Minnesota presumes once a recalculation runs at least 20 percent and 75 dollars higher or lower (Minn. Stat. 518A.39).
How much does child support have to change to modify it in Minnesota?
Minnesota presumes a substantial change when applying the guidelines to current circumstances produces an order at least 20 percent and at least 75 dollars per month higher or lower than the current order (Minn. Stat. 518A.39). Both the district court and the county child support review apply this same threshold.
How far back can a child support change go in Minnesota?
A modification can reach back only to the date the other parent is served with notice of your motion, and only for a period while your motion is pending, not to when your circumstances changed (Minn. Stat. 518A.39). Support that already came due generally cannot be reduced, so serving promptly protects you.
Which court handles child support modifications in Minnesota?
The district court in the county where your existing order is filed handles modifications. If your county child support office manages your case, you can ask that office to review and adjust the order through the administrative process instead of a full court hearing. Both use the state guideline (Minn. Stat. 518A.35).
Minnesota child support modification at a glance
In Minnesota, a child support modification is a court or county agency changing an existing support order after a substantial change in circumstances makes it unreasonable and unfair (Minn. Stat. 518A.39). The state presumes that change is substantial once a recalculation under the guidelines runs at least 20 percent and at least 75 dollars per month higher or lower than the current order. Support is set by a statewide guideline tied to both parents' gross incomes and parenting time (Minn. Stat. 518A.35). You file a Motion to Modify Support (Form CSX202) with the district court in your county, or ask your county child support office for a review. A change applies back only to the date the other parent is served with notice of the motion, so support already due generally cannot be reduced.
Lowering a Minnesota order after a pay cut
Suppose your Minnesota order was set two years ago and your hours were just cut, and a recalculation under the guideline now runs about 25 percent and 120 dollars per month lower, clearing the 20 percent and 75 dollar presumption (Minn. Stat. 518A.39). You complete a Motion to Modify Support (Form CSX202) with the supporting affidavit showing your lower income, and file it in the district court county that handles your case. You serve the other parent right away, because a change reaches back only to the service date, not to your pay cut (Minn. Stat. 518A.39). You keep paying the current amount until the court rules. At the hearing the court recalculates support under the guideline (Minn. Stat. 518A.35) and issues a lower order effective from the service date. Attorney review of your filing is available through DocDraft.
Relevant Laws
Minn. Stat. 518A.39 (modification of orders)
Governs modification of a child support order, presumes a substantial change when a guideline recalculation is at least 20 percent and at least 75 dollars per month higher or lower, and limits retroactivity to the period a motion is pending, only from the date of service of notice of the motion.
Minn. Stat. 518A.35 (guideline used in child support determinations)
Sets Minnesota's rebuttable-presumption guideline for calculating basic support from the parents' combined monthly parental income and parenting time, used in any proceeding to establish or modify a support obligation.
Minn. Stat. 518A.75 (cost-of-living adjustments)
Requires that an order establishing, modifying, or enforcing child support provide for a biennial cost-of-living adjustment, a separate automatic process from a motion to modify based on a substantial change in circumstances.
Minnesota Judicial Branch: child support forms
The Minnesota Judicial Branch self-help forms library provides the Motion to Modify Support (Form CSX202), the supporting affidavit (Form CSX203), and the full motion-to-modify packet with instructions at no charge.
Regional Variances
Minnesota child support modification rules at a glance
Qualifying threshold
Minnesota presumes a substantial change when a guideline recalculation is at least 20 percent and at least 75 dollars per month higher or lower than the current order (Minn. Stat. 518A.39). The county child support office review applies the same threshold.
Where to file
The district court in the county where your existing order is filed. If your county child support office manages your case, you can ask it to review and adjust the order through the administrative process instead of a full court hearing.
Modification form
Form CSX202, the Motion to Modify Support, with the supporting affidavit (Form CSX203). The Minnesota Judicial Branch provides these forms and the full motion packet free through its self-help forms site.
Retroactivity
A modification can reach back only for the period a motion is pending, and only from the date the other parent is served with notice of the motion (Minn. Stat. 518A.39). Support that already came due generally cannot be reduced.
Periodic review
If your county office handles your case, you can generally request a review about every three years without showing a change, under federal rules, and most Minnesota orders carry an automatic biennial cost-of-living adjustment (Minn. Stat. 518A.75).
Suggested Compliance Checklist
Gather proof of your changed circumstances
Before you file days after startingCollect current pay stubs, tax returns, and proof of the change (job loss, income change, or a new parenting schedule), and estimate the new guideline amount (Minn. Stat. 518A.35). Attorney review of your filing is available through DocDraft.
Complete the Motion to Modify Support (CSX202)
As soon as your circumstances change days after startingFill out Form CSX202 asking to change child support, describe the changed circumstances, and complete the supporting affidavit (Form CSX203). Use the free Minnesota Judicial Branch self-help forms and the motion-to-modify packet.
File with the district court
Promptly (the change dates to service) days after startingFile your CSX202 and affidavit with the court administrator in your county district court and pay the fee, or ask for a fee waiver. A change reaches back only to the service date, so do not delay (Minn. Stat. 518A.39).
Serve the other parent
Right after filing days after startingHave an adult who is not you serve the other parent with your motion papers, and serve the public authority if support is paid through it, then file proof of service. The service date sets how far back your change can reach (Minn. Stat. 518A.39).
Consider a county child support review
Anytime your case is with the county days after startingIf your county child support office manages your case, ask it to review your order. The office applies the same 20 percent and 75 dollar presumption and can bring the matter to court if a change is warranted.
Attend the hearing and get the new order
On your hearing date days after startingGo to the hearing with your income proof, let the court recalculate support under the guideline, and get the new order effective back to the service date. Keep paying your current order until it is changed.
| Task | Description | Document | Days after starting |
|---|---|---|---|
| Gather proof of your changed circumstances | Collect current pay stubs, tax returns, and proof of the change (job loss, income change, or a new parenting schedule), and estimate the new guideline amount (Minn. Stat. 518A.35). Attorney review of your filing is available through DocDraft. | - | Before you file |
| Complete the Motion to Modify Support (CSX202) | Fill out Form CSX202 asking to change child support, describe the changed circumstances, and complete the supporting affidavit (Form CSX203). Use the free Minnesota Judicial Branch self-help forms and the motion-to-modify packet. | - | As soon as your circumstances change |
| File with the district court | File your CSX202 and affidavit with the court administrator in your county district court and pay the fee, or ask for a fee waiver. A change reaches back only to the service date, so do not delay (Minn. Stat. 518A.39). | - | Promptly (the change dates to service) |
| Serve the other parent | Have an adult who is not you serve the other parent with your motion papers, and serve the public authority if support is paid through it, then file proof of service. The service date sets how far back your change can reach (Minn. Stat. 518A.39). | - | Right after filing |
| Consider a county child support review | If your county child support office manages your case, ask it to review your order. The office applies the same 20 percent and 75 dollar presumption and can bring the matter to court if a change is warranted. | - | Anytime your case is with the county |
| Attend the hearing and get the new order | Go to the hearing with your income proof, let the court recalculate support under the guideline, and get the new order effective back to the service date. Keep paying your current order until it is changed. | - | On your hearing date |
Frequently Asked Questions
A real, involuntary income drop can support a modification, and a substantially decreased income is a listed ground (Minn. Stat. 518A.39). You must still file a motion or ask your county office to act; support keeps accruing at the old rate until the order changes. Do not simply stop paying.
No. Either parent can file a Motion to Modify Support on their own, and the other parent is served and can respond. If both parents agree on a new amount, they can submit it for a court to approve, and the court still checks it against the guideline (Minn. Stat. 518A.35).
After you file Form CSX202 and serve the motion, the court sets a hearing, often several weeks to a few months out depending on the county. A county child support review can take time as well. Because a change dates back only to the service date, serving promptly protects you (Minn. Stat. 518A.39).
Yes. If your county child support office manages your full-service case, you can ask it to review your order. It applies the same 20 percent and 75 dollar presumption and can bring the matter to court. An income-withholding-only case does not get this help (Minn. Stat. 518A.39).
You can request a review whenever a substantial change in circumstances occurs. If your county office handles your case, you can generally ask for a three-year review even without a change, under federal rules, and most Minnesota orders also carry an automatic cost-of-living adjustment every two years (Minn. Stat. 518A.75).
A modification changes support only from the date the other parent is served forward (Minn. Stat. 518A.39). Support that already came due, called arrears, generally cannot be reduced or erased by a modification. Keep paying your current order to avoid building arrears while your motion is pending.
File your Motion to Modify Support with the court administrator in the district court county where your existing order is located. If your county child support office manages your case, you can start with an administrative review through that office instead of filing in court yourself (Minn. Stat. 518A.39).
Filing a motion in district court carries the standard motion filing fee, but you can ask the court to waive it with a fee waiver if you cannot afford it. Asking your county child support office to review your order does not charge you a separate fee for the review.
Other Minnesota guides
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