Alabama uses the Income Shares model — both parents’ gross incomes are combined. Updated for 2026 — covers 50/50 custody, arrears, modifications and Alabama child support laws.
BothParents Income
NoneIncome Cap
19Age Support Ends
12%Arrears Interest
🌳 Alabama Income Shares Model
Alabama Child Support Calculator 2026
Alabama uses the Income Shares model — both parents’ gross incomes are combined.
ℹAlabama uses gross income — Gross = total income before any deductions.
$
$0$20k
$
$0$20k
$
$
Estimated Monthly Child Support
$0
per month
Annual Total
$0
Combined Income
—
Until Age
19
* Estimate using official Alabama income shares formula. Courts may deviate based on special circumstances. Consult a Alabama family law attorney for your specific situation.
🌳 How Alabama Calculates Child Support
ModelIncome Shares — both parents’ combined gross income
Income CapNo set cap — courts use discretion
Minimum Order$50/month minimum regardless of income
Arrears Interest12% annual interest on unpaid arrears
Alabama Key RuleAlabama uses the Income Shares model — both parents’ incomes are combined
Additional InfoAlabama child support ends at age 19, not 18 like most states
⚖ 50/50 Custody in Alabama
Does Child Support Apply With 50/50 Custody in Alabama?
In most cases, yes. Alabama does not automatically eliminate child support with equal parenting time.
✓General rule: With 50/50 custody, the higher-earning parent typically pays the lower-earning parent. The amount is reduced vs sole custody but rarely reaches $0.
$
$0$15k
$
$0$15k
Estimated Monthly Payment
$0
per month
Without Custody Adj.
$0
Custody Reduction
$0
Net Payment
$0
* 50/50 custody calculations are complex. This is an approximation. Consult a Alabama family law attorney for exact figures.
📋 Alabama Arrears Calculator
Alabama Child Support Arrears Calculator
Calculate total back child support including 12% annual interest Alabama applies to unpaid arrears.
⚠Alabama charges 12% annual interest on all unpaid child support arrears.
$
$
$
Total Arrears Owed (with 12% Interest)
$0
including Alabama 12% annual interest
Base Arrears
$0
Interest Accrued
$0
Clear in 1 Year
$0
Clear in 2 Years
$0
Clear in 3 Years
$0
Support Ends Age
19
* Alabama applies 12% annual interest to unpaid child support. There is generally no statute of limitations on child support debt.
🔄 Modification Estimator
Alabama Child Support Modification
Estimate your new payment and check if you qualify for a modification in Alabama.
ℹModification rule: Most states allow modification when the new amount differs by 15-20% or $100/month, OR when there is a material and substantial change in circumstances (job loss, new child, custody change).
$
36+ months = eligible for routine review
$
Estimated New Monthly Payment
$0
per month
Current Order
$0
New Calculated
$0
Difference
$0
% Change
0%
Likely Qualifies?
—
Time Since Order
—
* Qualification estimate only. Consult a Alabama family law attorney before filing.
📜 Updated 2026
Alabama Child Support Laws 2026
Key rules, age cutoffs and what you need to know in Alabama.
FORMULA How Alabama Calculates Child Support
Alabama Rule 32 governs child support guidelines. Alabama is notable for support ending at 19 rather than 18. The Income Shares model uses state-published schedule tables based on combined monthly gross income.
AGE When Does Child Support End in Alabama?
Child support in Alabama ends when the child turns 19 — Alabama support ends at 19 — one year later than most states. Support also ends upon the child’s death, marriage or emancipation. Important: In most cases support does not stop automatically — you need a court order. Stopping payments without a court order creates arrears even after the child reaches the cutoff age.
INTEREST Arrears Interest in Alabama
Alabama charges 12% annual interest on unpaid child support arrears. Alabama’s rate of 12% is among the higher rates in the country. There is generally no statute of limitations on child support debt.
ENFORCEMENT Alabama Child Support Enforcement
Alabama has broad enforcement powers including wage garnishment, tax refund interception, driver’s license suspension, professional license suspension, passport denial, and credit bureau reporting. Criminal charges may apply for significant or long-term non-payment.
MODIFY Modifying Child Support in Alabama
Child support can be modified in Alabama when there is a material and substantial change in circumstances — typically a significant income change, job loss, new children from another relationship, or change in custody. Most states also allow a periodic review every 3 years. File a petition with the court — private agreements to change support are not legally enforceable.
📅 Alabama Payment Calendar
Child Support Payment Calendar 2026
Generate your personal payment schedule and track payments month by month.
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Monthly Total
$0
Annual Total
$0
Next Payment
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Days Until Due
—
Payments Remaining
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Marked Paid
$0
* Click Mark as Paid to track payments. Always keep payment receipts.
Need a Alabama Family Law Attorney?
This calculator provides estimates. For filing, modifying or enforcing a child support order, connect with a local family law attorney.