Montana Child Support Guidelines Information

State law requires the District Court, the Child Support Services Division (CSSD), and the Office of Administrative Hearings to use these Guidelines for all child support cases.

The CSSD is required to develop and distribute child support guidelines to determine child support obligations. The Montana guidelines are based on a formula in which the income of both parents are considered. The guidelines must consider certain factors as set out in,  MCA 40-4-204(2) and  40-6-116(5)

Guidelines Forms and Instructions

Guidelines Review

The CSSD reviews the guidelines every four years. MCA 40-5-209 This is to determine that the needs of Montana families are being met. The next guidelines review will be completed in December 2024.

The document titled  “Guidelines History”   explains how Montana determined the model it would follow for calculating child support obligations. 

Guidelines Review and Oversight Committee (GROC) Meeting Minutes

Guidelines Review Reports

2020 Quadrennial Guidelines Report

2020 Quadrennial Guidelines Report Addenda

If you have any guidelines questions or comments or would like to be part of the Guidelines Review and Oversight Committee (GROC) please send an email to: