Child support guidelines by state
How each state figures child support, the percentages where the state uses them, and the official calculator.
Income shares and Melson states use both parents' incomes; use the official calculator for the amount. Percentages apply to the income the state's law defines, often up to a cap.
| State | Model | Percent for 1 / 2 / 3 children | Official tool |
|---|---|---|---|
Income shares | — | ||
Percentage of income | 20% / 27% / 33% | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Melson formula | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Melson formula | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Percentage of income | 14% / 20% / 22% | ||
Income shares | — | ||
Melson formula | — | ||
Income shares | — | ||
Percentage of income | 16% / 22% / 26% | ||
New Hampshire Not covered yet: child support agency · LawHelp.org | Not covered yet | ||
Income shares | — | ||
Income shares | — | ||
Percentage of income | 17% / 25% / 29% | ||
Income shares | — | ||
Percentage of income | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Percentage of income | 20% / 25% / 30% | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Income shares | — | ||
Percentage of income | 17% / 25% / 29% | ||
Income shares | — |
Find out how to open a case in your state.
How to get child support