Alabama Child Support Calculator

Estimate your child support obligations in Alabama using the income shares model. Understand how support is calculated, what factors matter, and what to expect. Updated for 2026.

Income shares Model

Alabama uses the Income Shares Model under Rule 32 of the Alabama Rules of Judicial Administration. Both parents' adjusted gross incomes are combined to determine the Basic Child Support Obligation from the Schedule of Basic Child Support Obligations (Appendix to Rule 32). Each parent's share is proportional to their percentage of combined income. Adjustments are made for work-related child care expenses, health insurance premiums, and extraordinary medical expenses. Form CS-42 is the standardized worksheet. The guidelines are reviewed and updated at least every four years per Rule 32(G).

Estimate Your Child Support

Interactive Calculator Coming Soon

Our Alabama child support calculator will let you estimate payments based on your income, custody arrangement, and number of children. Sign up to get notified when it launches.

Get Started with Divorce.ai

What Goes Into the Alabama Calculation?

Income

Both parents' gross income from all sources:

Wages and salary
Bonuses and commissions
Self-employment income
Investment income
Rental income
Social Security benefits
Unemployment benefits
Pension / retirement income

Deductions

Allowable deductions that may reduce gross income:

Federal and state income taxes
FICA / Social Security tax
Mandatory retirement contributions
Union dues
Health insurance premiums
Existing child support orders

Adjustments

Additional factors that can adjust the base support amount:

Number of children
Parenting time / custody split
Childcare costs
Health insurance for children
Extraordinary medical expenses
Special needs of the child
Travel costs for visitation
Extracurricular activities

Get your full financial picture

Divorce.ai's income and expense tracker helps you accurately report your finances for the Alabama child support worksheet.

How the Income shares Model Works

1

Determine Combined Income

Add both parents' adjusted gross income together to get the combined income figure.

2

Look Up Base Obligation

Using Alabama's guidelines table, find the base child support amount for your combined income and number of children.

3

Prorate Between Parents

Each parent's share is proportional to their income. If Parent A earns 60% of the combined income, they are responsible for 60% of the obligation.

4

Apply Adjustments

Add or subtract adjustments for healthcare, childcare, shared parenting time, and extraordinary expenses.

Complete your child support worksheet

Divorce.ai auto-fills the Alabama child support worksheet based on your financial information. Accurate and court-ready.

Modifying Child Support in Alabama

Child support orders are not permanent. You can request a modification when there is a substantial change in circumstances. Common reasons include:

Job loss or income reduction: Involuntary loss of employment or significant pay cut
Increase in income: Either parent receives a substantial raise or new income source
Custody changes: Significant change in the parenting time arrangement
Child's needs change: New medical needs, educational requirements, or special needs
Healthcare cost changes: Significant increase or decrease in health insurance or medical costs
New children: Birth of additional children (in some states)

Frequently Asked Questions

How is child support calculated in Alabama?
Alabama uses the income shares model. Alabama uses the Income Shares Model under Rule 32 of the Alabama Rules of Judicial Administration. Both parents' adjusted gross incomes are combined to determine the Basic Child Support Obligation from the Schedule of Basic Child Support Obligations (Appendix to Rule 32). Each parent's share is proportional to their percentage of combined income. Adjustments are made for work-related child care expenses, health insurance premiums, and extraordinary medical expenses. Form CS-42 is the standardized worksheet. The guidelines are reviewed and updated at least every four years per Rule 32(G).
What income is used to calculate Alabama child support?
Gross income from all sources is typically used, including wages, salary, bonuses, commissions, self-employment income, rental income, investment income, Social Security benefits, unemployment benefits, and disability benefits. Courts may also impute income if a parent is voluntarily unemployed or underemployed.
How long does child support last in Alabama?
Child support in Alabama generally continues until the child turns 18, or through high school graduation if the child is still in school. Some orders extend to age 19 or 21 depending on the state and circumstances (college support, special needs).
Can Alabama child support be modified?
Yes, child support orders in Alabama can be modified when there is a substantial change in circumstances. Common reasons include significant income changes (job loss, promotion), changes in custody arrangement, changes in the child's needs, or changes in healthcare costs.
What if a parent doesn't pay child support in Alabama?
Alabama has enforcement mechanisms including wage garnishment, tax refund interception, license suspension (driver's and professional), bank account levies, contempt of court charges, and reporting to credit bureaus. Failure to pay can result in fines and jail time.

Related Alabama Guides

Get accurate Alabama child support calculations

Divorce.ai helps you complete the official Alabama child support worksheet and understand your obligations.