Changing a child support order in Alabama (2026)
An Alabama child support order changes only when a parent files a petition to modify and proves a material change in circumstances that is substantial and continuing since the last order. If the guideline amount differs from the existing order by more than ten percent, there is a rebuttable presumption that the order should be modified. The new amount applies only to payments due after the petition was filed (Rule 32(A)(3)).
How is a child support order changed in Alabama?
Rule 32(A)(3) says the guidelines are the basis for “periodic updates” of child support, and sets the terms:
- A petition. A parent files a petition to modify. The change applies only to installments that fall due after the petition is filed (Rule 32(A)(3)(a)).
- A material change. The parent asking must plead and prove a material change in circumstances that is substantial and continuing since the last order (Rule 32(A)(3)(b)).
- The ten percent presumption. When the existing order and the guideline amount differ by more than ten percent, there is a rebuttable presumption that support should be modified. That does not apply when the existing order came from a justified departure from the guidelines and the circumstances behind it have not changed (Rule 32(A)(3)(c)).
- New guidelines are not enough. The existence of the guidelines, or periodic changes to them, does not by itself prove a material change (Rule 32(A)(3)(d)).
Can a court change support with less than a ten percent difference?
Yes. A court may modify support without a ten percent variation when a material, substantial and continuing change is proven. It may also refuse to modify even when the variation is there, if applying the guidelines would be manifestly unjust or inequitable (Rule 32(A)(3)(e)).
How much does a change in income change the amount?
The guideline is recalculated with current figures. For two children, with the parent the children live with earning $4,000 a month, here is how the amount moves with the other parent’s income:
| Other parent's income a month | 2 children |
|---|---|
| $3,000 | $589.00 |
| $4,000 | $760.00 |
| $5,000 | $892.00 |
| $6,000 | $1,020.00 |
| $7,000 | $1,145.00 |
| $8,000 | $1,260.00 |
Comparing the figure for the new incomes with the existing order shows whether the difference passes ten percent.
What if a parent loses their job or goes to prison?
A court imputes income to a parent it finds voluntarily unemployed or underemployed, based on what that parent could earn (Rule 32(B)(5)). Incarceration may not be treated as voluntary unemployment when an order is set or modified. A parent with no income who is incarcerated or institutionalized for more than 180 consecutive days is presumed to owe nothing (Rule 32(C)(6)). See low incomes.
Does a change in custody time change support?
A change to or from a court order for 50/50 custody changes the worksheet. Under a 50/50 order, a parent who fails without sufficient cause to use their custody time for more than 14 days in the 12 months before a petition may face a modification back to the filing date (Rule 32(C)(7)(c)). See shared custody.
What this guide does not cover
Court procedure and filing fees, the state child support agency’s review services, and arrears are not covered. The figures are estimates of the guideline amount, not legal advice.
Run your own numbers
This guide's example: in Alabama, 2 children; the parent the children live with earns $4,000 a month and the other parent $6,000, before tax; 0 days a year with the other parent. The guideline amount is $1,020.00 a month. Change any number in the calculator and every step of the formula updates.
Open this family in the Alabama calculatorQuestions
How do you modify child support in Alabama?
By filing a petition to modify with the court that has the case and proving a material change in circumstances that is substantial and continuing since the last order. The guideline is recalculated with current incomes on the same forms.
What counts as a material change for child support in Alabama?
Rule 32 does not list them; the court decides on the facts. When the guideline amount with current figures differs from the existing order by more than ten percent, a change is presumed. New guidelines alone do not count.
Can child support be changed back to when the income changed?
No. A modification applies only to installments that fall due after the petition to modify was filed (Rule 32(A)(3)(a)). Delay in filing cannot be made up later.
Can a court change support without a ten percent difference?
Yes. A court may modify support without a ten percent variation when a material, substantial and continuing change is proven, and may refuse to modify despite the variation when applying the guidelines would be manifestly unjust or inequitable (Rule 32(A)(3)(e)).
Sources
- Rule 32(A)(3), Modifications, and Rule 32(B)(5), Alabama Rules of Judicial Administration (as amended effective 1 June 2023), archived copy
- Figures on this page are computed by the Coparent Math engine with Alabama's rules in force on 3 Nov 2026 unless a table says otherwise, from:
- Rule 32, Alabama Rules of Judicial Administration, as amended effective 1 June 2023 (archived copy of the court's PDF), checked 3 Nov 2026
- Supreme Court of Alabama, order of 14 January 2022: Rule 32, Form CS-42 and the Schedule of Basic Child-Support Obligations, effective 1 May 2022 (archived copy), checked 3 Nov 2026
- Supreme Court of Alabama, order of 3 March 2023: shared 50% physical custody and Form CS-42-S, effective 1 June 2023 (archived copy), checked 3 Nov 2026
- Administrative Office of Courts: Schedule of Basic Child-Support Obligations effective 5/1/2022 (archived copy), checked 3 Nov 2026
Related guides
Up
Related
- Child support with 50/50 custody in Alabama (2026): Form CS-42-SWhen a court orders shared 50/50 physical custody, Alabama uses Form CS-42-S: the schedule amount is multiplied by 1.5, child care and health insurance are added, each parent owes their income share of the total less their own costs and half the shared amount, and the parent who owes more pays the difference. Anything short of about half the time uses the ordinary worksheet; a court may deviate for extra time, but there is no formula for it.
- Child support at low incomes in Alabama (2026): the self-support reserveAlabama protects a paying parent on a low income with a self-support reserve of $981 a month: support is capped at 85% of that parent's income above the reserve. When that leaves less than $50, a $50 minimum is presumed. A parent with no income who receives only means-tested assistance, or who is incarcerated or institutionalized for more than 180 days, is presumed to owe nothing.
In the same hub
- Child support at high incomes in Alabama (2026)Alabama's schedule runs to $30,000 of combined monthly gross income. Above that, Rule 32(C)(1) leaves the amount to the court's discretion, and the Committee Comments say the schedule should not be extrapolated, so there is no guideline formula. The calculator shows the top row of the schedule and marks the result as not a guideline figure.
- How much is child support in Alabama by income? (2026)In Alabama the amount depends on both parents' incomes and the number of children. With the parent the children live with earning $4,000 a month and no extra costs, a parent earning $6,000 pays $693.00 for one child and $1,020.00 for two.
- Child support for more than one child in Alabama (2026)Alabama's schedule gives a figure for 1 to 6 children at each combined income, and each extra child adds less than the one before. With incomes of $4,000 and $6,000, the other parent pays $693.00 for one child, $1,020.00 for two and $1,190.00 for three.
- Self-employment and imputed income for child support in Alabama (2026)For a self-employed parent, Alabama counts gross receipts minus the ordinary and necessary expenses the IRS allows, except accelerated depreciation, investment tax credits and other expenses the court finds inappropriate (Rule 32(B)(3)). Significant business perks that reduce living costs count as income. A court imputes income to a parent it finds voluntarily unemployed or underemployed, and calculates support on it (Rule 32(B)(5)).
- Health insurance and child care in Alabama child support (2026)Alabama adds the children's share of the health insurance premium and work related child care to the basic schedule amount, splits the total by income, and credits each parent with what they pay. Child care counts up to the cost of licensed care on the Department of Human Resources' schedule, and health insurance is reasonable in cost up to ten percent of the paying parent's gross income.
- Back child support (arrears) in Alabama: interest, enforcement and jail (2026)In Alabama, child support judgments entered on or after 1 September 2011 carry interest at 7.5 percent a year, and older ones at 12 percent or 6 percent depending on the date (Code of Alabama § 8-8-10; Department of Human Resources). The Department of Human Resources (DHR) collects arrears through income withholding, state and federal tax refund intercepts, credit reporting, liens, license suspension and passport denial, and a court can jail a parent for contempt. Support can be modified only for installments that accrue after a petition to modify is filed, interest can be rebated only with the written agreement of the person owed it, and arrears stay owed after the child turns 19.
The same topic in other states
- Changing a child support order in Florida (2026)Either parent can ask the court to increase or decrease child support when the circumstances or financial ability of either party change (Fla. Stat. § 61.14(1)(a)). The guidelines can show a substantial change on their own when the difference between the existing order and the guideline amount is at least 15 percent or $50, whichever is greater (§ 61.30(1)(b)). A modification can apply back to the date the petition was filed.
- Changing a child support order in Georgia (2026)A Georgia parent can petition to modify child support only when there is a substantial change in either parent's income and financial status or in the child's needs (O.C.G.A. § 19-6-15(k)(1)). A parent may not file another petition within two years of the final order on their own previous petition, unless the other parent did not use, or used more than, the court-ordered parenting time, or the petition is based on an involuntary loss of income (§ 19-6-15(k)(2)).
- Changing a child support order in Texas (2026)A Texas court can modify a child support order in two cases: when the circumstances of the child or a person affected by the order have materially and substantially changed, or when it has been three years since the order was made or last modified and the monthly amount differs from the current guideline amount by either 20 percent or $100 (Texas Family Code § 156.401). Only a new order changes the amount; parents can apply to the Attorney General's Child Support Division for a review or file in court.
- Modifying a child support order in New York (2026)A New York child support order can be modified when there is a substantial change in circumstances, when three years have passed since it was entered, last modified or adjusted, or when either parent's gross income has changed by 15 percent or more since then (Family Court Act § 451(3); Domestic Relations Law § 236(B)(9)(b)(2)). Parents can opt out of the three-year and 15 percent grounds in a validly executed agreement or stipulation. Separately, the Child Support Program reviews orders it handles every two years for a cost of living adjustment.
- How a Virginia child support order is changed (2026)A Virginia child support order changes only when a court revises it, either on a parent's petition or after a review by the Division of Child Support Enforcement (DCSE), and the court needs a material change in circumstances. A change can reach back only to the date the other parent was given notice of the petition (Code of Virginia § 20-108). In DCSE reviews, a material change is deemed to exist when the guideline amount differs from the current order by at least 10 percent and at least 25 dollars a month (§ 63.2-1921 C).