Montana Child Support Calculator

How is Child Support Calculated in Montana?

Montana's formula first makes sure you have enough money for your own basic needs. After that, it covers your children's primary needs, and then a percentage of any leftover income is added to ensure your kids share in your standard of living.

Understanding Montana's Shared Custody Rules

When you share parenting time, Montana's calculation adjusts to reflect the time children spend in each home. If your child stays with the non-primary parent for over 110 overnights a year, the support amount is typically reduced to account for the costs that parent covers directly.

Montana Child Support FAQs

At what age does child support end in MT?

In Montana, child support typically ends when a child turns 18. However, if the child is still attending high school, support may be extended until they graduate or turn 19, whichever occurs first.

How is child support calculated if one parent is unemployed in MT?

If a parent is unemployed or underemployed by choice, the court can 'impute' income, calculating support based on their potential earning capacity. If the unemployment is involuntary and they are actively seeking work, support may be based on their actual income, such as unemployment benefits.

How do I modify a child support order in MT?

You can request a modification if there has been a 'substantial and continuing' change in circumstances. In Montana, a change that results in a 15% or greater difference in the calculated support amount is generally considered substantial enough for a review.

Does MT child support cover college expenses?

No, a court in Montana cannot order a parent to pay for college or other post-secondary education expenses. These costs are only included if both parents voluntarily agree to it in their written settlement agreement.

How does MT handle health insurance and childcare costs?

Health insurance premiums and work-related childcare costs are considered mandatory add-ons to the basic child support calculation. These expenses are typically prorated between the parents based on their respective shares of the combined parental income.