Montana Child Support Calculator
Free Montana child support calculator using the income-shares model. Estimate monthly payments based on both parents' income and custody schedule.
How This Calculator Works
Calculation methodology and assumptions
Montana uses the income-shares model for calculating child support. Both parents' incomes are combined, then each parent's share of the total obligation is based on their percentage of combined income. The custodial parent's share is presumed spent directly on the child. This calculator provides an estimate — actual court orders may vary based on additional factors like extraordinary medical costs, educational expenses, and judicial discretion.
Key State Information
Montana uses the income-shares model. Montana's progressive income tax (up to 5.9%) is factored into disposable income calculations. The median household income in Montana is $60,560.
Frequently Asked Questions
How is child support calculated in Montana?
Montana uses the income-shares model. Both parents' incomes are combined to determine the basic support obligation, then each parent pays their proportional share. Courts may deviate based on special circumstances.
How long does child support last in Montana?
In most cases, child support in Montana continues until the child turns 18 or graduates high school (whichever is later). Some states extend support to age 19 or through college in certain circumstances.
Can child support be modified in Montana?
Yes, either parent can request a child support modification if there's a substantial change in circumstances — such as a significant income change (usually 15-20% or more), job loss, disability, or change in custody arrangement.
Related Calculators
More Child Support Calculators
More Calculators for Montana
Explore related financial tools with Montana data