Child support for 2 children in Montana
Montana guidelines effective February 1, 2026. Montana overview
For 2 children, with Parent A earning $60,000 and Parent B $40,000, Montana's guideline amount is $866 a month (Parent A pays Parent B).
This is the guideline amount, not a court order.
Calculate it for your family
Guideline child support
Choose your state and enter both incomes to see the guideline amount.
Child support for 2 children in Montana by income
| Parent A income | Parent B $0 | Parent B $30,000 | Parent B $50,000 | Parent B $80,000 |
|---|---|---|---|---|
| $20,000 | $134 | $134 | $134 | $134 |
| $25,000 | $218 | $218 | $218 | $218 |
| $30,000 | $408 | $256 | $256 | $256 |
| $35,000 | $698 | $384 | $322 | $294 |
| $40,000 | $798 | $512 | $436 | $362 |
| $45,000 | $886 | $626 | $544 | $462 |
| $50,000 | $966 | $726 | $644 | $562 |
| $55,000 | $1,044 | $820 | $738 | $648 |
| $60,000 | $1,118 | $914 | $832 | $742 |
| $65,000 | $1,184 | $992 | $918 | $828 |
| $70,000 | $1,250 | $1,072 | $998 | $902 |
| $75,000 | $1,314 | $1,142 | $1,068 | $972 |
| $80,000 | $1,370 | $1,206 | $1,138 | $1,042 |
| $90,000 | $1,490 | $1,340 | $1,272 | $1,182 |
| $100,000 | $1,604 | $1,474 | $1,406 | $1,316 |
| $120,000 | $1,836 | $1,720 | $1,666 | $1,584 |
| $150,000 | $2,174 | $2,078 | $2,022 | $1,948 |
| $200,000 | $2,738 | $2,670 | $2,630 | $2,562 |
| $250,000 | $3,296 | $3,234 | $3,200 | $3,146 |
Parenting time and child support for 2 children
| Parent A income | 0 nights | 52 nights | 104 nights | 128 nights | 182 nights |
|---|---|---|---|---|---|
| $20,000 | $134 | $134 | $134 | $8 B→A | $434 B→A |
| $25,000 | $218 | $218 | $218 | $70 | $380 B→A |
| $30,000 | $256 | $256 | $256 | $108 | $336 B→A |
| $35,000 | $350 | $350 | $350 | $200 | $252 B→A |
| $40,000 | $470 | $470 | $470 | $312 | $164 B→A |
| $45,000 | $578 | $578 | $578 | $412 | $90 B→A |
| $50,000 | $678 | $678 | $678 | $504 | $22 B→A |
| $55,000 | $772 | $772 | $772 | $588 | $38 |
| $60,000 | $866 | $866 | $866 | $674 | $100 |
| $65,000 | $952 | $952 | $952 | $752 | $152 |
| $70,000 | $1,032 | $1,032 | $1,032 | $824 | $204 |
| $75,000 | $1,102 | $1,102 | $1,102 | $888 | $246 |
| $80,000 | $1,172 | $1,172 | $1,172 | $952 | $288 |
| $90,000 | $1,306 | $1,306 | $1,306 | $1,070 | $364 |
| $100,000 | $1,440 | $1,440 | $1,440 | $1,190 | $442 |
| $120,000 | $1,694 | $1,694 | $1,694 | $1,416 | $584 |
| $150,000 | $2,050 | $2,050 | $2,050 | $1,732 | $776 |
| $200,000 | $2,650 | $2,650 | $2,650 | $2,262 | $1,096 |
| $250,000 | $3,214 | $3,214 | $3,214 | $2,756 | $1,386 |
How the number of children changes the amount in Montana
With Parent A earning $60,000 and Parent B $40,000, the guideline amount for 2 children is $866 a month, about 1.45 times the $598 for one child. Support rises with each child, but by less than the first child's amount, because the guidelines reflect how households share costs among children.
Montana uses a Melson-type formula on yearly amounts. Each parent keeps a personal allowance of $20,748. The children's primary allowance ($6,224 a year for one child) and their expenses are shared by the parents' incomes above the allowance; a standard of living adjustment then adds a share of each parent's remaining income.
Frequently asked questions
How much is child support for 2 children in Montana on $50,000?
If Parent A earns $50,000 a year, Parent B earns $40,000 and the children live mostly with Parent B, Montana's guideline amount is about $678 a month (Parent A pays Parent B).
How much is child support for 2 children in Montana on $100,000?
If Parent A earns $100,000 a year, Parent B earns $40,000 and the children live mostly with Parent B, the guideline amount is about $1,440 a month (Parent A pays Parent B).
How much more is child support for 2 children than for one child in Montana?
At $60,000 (Parent B $40,000), the amount for 2 children is about 1.45 times the amount for one child: $866 against $598 a month.
Does equal parenting time change child support for 2 children in Montana?
With about equal parenting time and the same incomes ($60,000 and $40,000), the guideline amount is about $100 a month (Parent A pays Parent B), against $866 when Parent A has 52 overnights a year. When the children spend more than 110 days a year with each parent, each parent's amount is reduced for the days above that number and the parent who owes more pays the difference.
Official sources and verification
- Law: MCA 40-4-204, 40-5-209, 40-6-116; Admin. R. Mont. 37.62.101–37.62.148
- Montana child support guidelines
- Montana Child Support Guidelines Worksheets A–E
- Montana DPHHS Child Support Services Division (CSSD)
- Changing a Montana child support order
Guidelines effective February 1, 2026. Verified against the official Montana sources on October 7, 2026. How we calculate →