Calculate Child Support
Before taxes. Include wages, self-employment, bonuses.
Alabama 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 Alabama family law attorney.
ℹ️ Alabama uses the Income Shares — Alabama uses the Income Shares model. Support ends at age 19 or high school graduation.
How Child Support Works in Alabama
Alabama 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 Alabama Compares to Other States
See how Alabama's child support rules compare to other states.
| State | Formula | Support Ends | Arrears Rate | Mod. Threshold |
|---|---|---|---|---|
| ★ Alabama (you) | Income Shares | 19 | 7.5% | 10% |
| 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 Alabama?
Alabama uses the Income Shares model. Alabama uses the Income Shares model. Support ends at age 19 or high school graduation.
When does child support end in Alabama?
Child support generally ends when the child turns 19 in Alabama.
Can I modify child support in Alabama?
Yes. Alabama requires a 10% or greater change in income to qualify. Use our modification checker →
Does 50/50 custody eliminate child support in Alabama?
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 Alabama?
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.