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State Guide · Alabama
Child Support in Alabama: How It's Calculated, Modified & Enforced
A plain-English guide to Alabama child support — the guideline model, how the number is computed, the modification and enforcement process, and where to find the official worksheet.
Direct answer
Gross income from almost any source: wages, bonuses, self-employment, pensions, Social Security, veterans\', unemployment, disability, gifts, prizes, and prior alimony. Child support received for other children and means-tested benefits (TANF, SSI, food stamps) are excluded.
Alabama uses the Income Shares Model under Rule 32 of the Alabama Rules of Judicial Administration. Both parents' gross incomes are combined, a basic obligation is looked up on the Schedule of Basic Child-Support Obligations (combined AGI up to $20,000/month), and each parent pays a share proportional to their income. Health-insurance premiums and work-related childcare are added and split by income share. Notable features: a rebuttable presumption, a $50 minimum, a shared-custody worksheet (CS-42-S) that multiplies the obligation by 1.5 before offsetting, and a modification presumption when the new guideline differs by more than 10%.
Open the Alabama child support calculator to see your own number under the current guideline: Alabama calculator.
How a support order is established in Alabama
Apply with the Alabama Department of Human Resources (DHR) Child Support Enforcement Division, or file a petition in circuit court.
Establish paternity if the parents were not married (voluntary acknowledgment or court order).
Both parents complete Form CS-41 (income affidavit) and the CS-42 worksheet (or CS-42-S for shared custody).
The court applies Rule 32 and enters a support order (health insurance and childcare are included).
Payments are collected/enforced by DHR; wage withholding is automatic.
To modify, file a petition showing a material, continuing change; a difference of more than 10% from the current order creates a presumption of modification.
Worked examples
Illustrative example — two children, combined AGI $8,000 — Parent A AGI $5,000, Parent B AGI $3,000; two children; Parent A is the noncustodial parent. Combined $8,000 → schedule basic obligation ≈ $1,576/month. Parent A\'s 62.5% share = $985/month, plus their proportional share of health insurance and childcare. Under Rule 32 the noncustodial parent pays their income-percentage share of the combined basic obligation plus add-ons.
Illustrative example — shared physical custody — Same incomes, shared physical custody (~50/50). The basic obligation is multiplied by 1.5, each parent\'s share is computed, then the amounts are offset; the higher earner pays the difference. Alabama\'s shared-custody worksheet (CS-42-S) increases the obligation by 1.5× before offsetting the two parents.
Modifying or enforcing an order
Orders in Alabama can be modified when there is a substantial change in income, custody, or circumstances. Use the modification eligibility check and the cross-state comparison tool to see how a move would change the outcome. Enforcement runs through the state agency and can include income withholding and contempt proceedings.
Official sources
Alabama DHR — Child Support Enforcement — https://dhr.alabama.gov/child-support-enforcement/
Alabama Rule 32 Child Support Guidelines (alacourt.gov) — https://www.alacourt.gov/docs/currentcsgruleform.information.pdf
How is income counted in Alabama?
Gross income from almost any source: wages, bonuses, self-employment, pensions, Social Security, veterans\', unemployment, disability, gifts, prizes, and prior alimony. Child support received for other children and means-tested benefits (TANF, SSI, food stamps) are excluded.
What deductions reduce gross to adjusted income?
Only pre-existing court-ordered child support for other children and pre-existing periodic alimony actually being paid.
When can the court deviate?
Only with a written finding that strict application would be unjust or inequitable; a signed parental agreement stating reasons also qualifies.
How long does support last?
Until the child turns 19 (Alabama\'s age of majority).
What triggers a modification?
A new guideline calculation that differs from the existing order by more than 10%, plus a material, substantial, and continuing change in circumstances.
Alabama child support calculator
Estimate for Alabama
Alabama uses the Income Shares model.
Enter the paying parent’s gross (pre-tax) monthly income.
Alabama Child Support Worksheet — Planning Estimate
Generated September 22, 2026 · Model: Income Shares · Income basis: gross · Statute: Ala. Admin. Code r. 32-X-1-.03 (Rule 32, Appendix A)
This is an informal planning estimate, not a court worksheet and not legal advice. Confirm the current guideline with the state child-support agency or a licensed family-law attorney.
Estimated monthly support$885.00per month
Official schedule: Alabama Rules of Judicial Administration Rule 32, Appendix A - Schedule of Basic Child-Support Obligations (effective May 1, 2022). Official publisher: Alabama Administrative Office of Courts (alacourt.gov). (2022)
Annual estimate$10,620.00
Effective rate17.7%
MethodIncome Shares: combined income → official Alabama schedule → split by income share (+ add-ons, parenting-time credit)
View calculation breakdown
Combined parental income
$9,000
Total basic obligation (schedule)
$1,593
Obligor income share
55.6%
Obligor basic obligation
$885
Estimated monthly support
$885
How the basic obligation splits between parents
56%
44%
Paying parent: $885 Other parent: $708
Each parent pays their proportional share of the combined basic obligation.
Estimated monthly support by number of children
At the incomes you entered, for 2 children.
This article is general education, not legal or tax advice. For your exact number, open your state calculator.
Not legal or financial advice. This estimate follows the state’s statutory guideline formula but cannot capture every factor a court considers (health insurance, childcare, prior orders, deviations, imputed income).
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