Calculate Child Support
Before taxes. Include wages, self-employment, bonuses.
Maine uses the Income Shares — both incomes required.
0 = no custody · 91 = 25% · 182 = 50/50 · 365 = full custody
$0
estimated monthly support payment
⚠️ Estimate only. Actual court-ordered amounts may vary. Verify with a licensed Maine family law attorney.
ℹ️ Maine uses the Income Shares — Maine uses Income Shares. Support may continue until age 19 if in secondary school.
How Child Support Works in Maine
Maine uses the Income Shares to determine child support obligations.
The Income Shares model combines both parents' incomes, finds the basic support obligation from a state schedule, then divides it proportionally. More parenting time (overnights) reduces the non-custodial parent's payment through a parenting time credit.
How Maine Compares to Other States
See how Maine's child support rules compare to other states.
| State | Formula | Support Ends | Arrears Rate | Mod. Threshold |
|---|---|---|---|---|
| ★ Maine (you) | Income Shares | 18 | 15% | 15% |
| Delaware | Melson Formula | 18 | 5% | 10% |
| Idaho | Percentage of Income | 18 | 5% | 15% |
| Michigan | Income Shares | 18 | 5% | 10% |
| Ohio | Income Shares | 18 | 5% | 10% |
| Alaska | Percentage of Income | 18 | 6% | 15% |
| Florida | Income Shares | 18 | 6% | 15% |
| Louisiana | Income Shares | 18 | 6% | 25% |
| New Hampshire | Income Shares | 18 | 6% | 15% |
Showing 8 comparison states. View all 50 states →
Frequently Asked Questions
How is child support calculated in Maine?
Maine uses the Income Shares model. Maine uses Income Shares. Support may continue until age 19 if in secondary school.
When does child support end in Maine?
Child support generally ends when the child turns 18 in Maine.
Can I modify child support in Maine?
Yes. Maine requires a 15% or greater change in income to qualify. Use our modification checker →
Does 50/50 custody eliminate child support in Maine?
Not automatically. The higher-earning parent typically still pays support with 50/50 custody. See our 50/50 guide →
What income is used for child support in Maine?
Income includes wages, self-employment, bonuses, rental income, unemployment benefits, disability payments, and Social Security. Courts may impute income if a parent is voluntarily underemployed.