Child Support Formulas by State (2026): Percentages & Caps
Child support is a formula everywhere — but the formula changes at the state line. This table compares the percentage-of-income states we cover, with the exact percentages by number of children and any income cap, each verified against the statute or guideline.
| State | Guideline formula | What it covers | Statute |
|---|---|---|---|
| Alaska | 20/27/33/36/39% of adjusted income for 1–5+ children (income capped at $11,500/mo) | Percentage-of-income model | Alaska Civil Rule 90.3 |
| Arizona | Schedule by combined adjusted gross income ($750–$30,000/mo), payer owes income share | Income-shares model | Arizona Child Support Guidelines (2022), § III.A and Schedule of Basic Support Obligations (A.R.S. § 25-320 app.; Ariz. Sup. Ct. Admin. Order 2021-56) |
| Colorado | Schedule by combined adjusted gross income ($50–$40,000/mo), payer owes income share; minimum $10/mo | Income-shares model | C.R.S. § 14-10-115(7)(b) Schedule of Basic Child Support Obligations, as amended by HB25-1159 (eff. Mar. 1, 2026) |
| Florida | Schedule by combined net income ($800–$10,000/mo), payer owes income share | Income-shares model | Fla. Stat. § 61.30 |
| Georgia | Schedule by combined adjusted gross income ($800–$40,000/mo), payer owes income share | Income-shares model | O.C.G.A. § 19-6-15(o) Basic Child Support Obligation Table (as amended by SB 454, eff. July 1, 2024) |
| Illinois | Schedule by combined net income ($50–$27,350/mo), payer owes income share; minimum $40/mo | Income-shares model | 750 ILCS 5/505(a)(1), (3.3a), (3.5); HFS Income Shares Schedule of Basic Child Support Obligations (eff. Mar. 20, 2026) |
| Michigan | Schedule by combined net income ($0–$17,871.57/mo), payer owes income share | Income-shares model | 2025 Michigan Child Support Formula Manual § 3.02(B) (General Care Equation) and 2025 MCSF Supplement § 2.03 (General Care Support Tables); MCL 552.519(3)(a)(vi) |
| Mississippi | 14/20/22/24/26% of AGI income for 1–5+ children | Percentage-of-income model | Miss. Code § 43-19-101 |
| Nevada | Tiered % of gross income by children (16% first tier, 1 child) | Percentage-of-income model | NAC § 425.140 |
| New Jersey | Schedule by combined net income ($780–$15,600/mo), payer owes income share | Income-shares model | N.J. Court Rules, R. 5:6A and Appendix IX-F, Schedule of Child Support Awards (revised effective Sept. 1, 2025) |
| New York | 17/25/29/31/35% of combined income for 1–5+ children (cap $193,000/yr), split pro rata | Percentage of combined income | N.Y. Dom. Rel. Law § 240(1-b); Family Ct Act § 413; LDSS-4515 Child Support Standards Chart (Rev. 03/26) |
| North Carolina | Schedule by combined adjusted gross income ($1,300–$40,000/mo), payer owes income share; minimum $50/mo | Income-shares model | N.C. Child Support Guidelines, Schedule of Basic Support Obligations (AOC-A-162, Rev. 1/23, eff. Jan. 1, 2023); G.S. 50-13.4(c) |
| Ohio | Schedule by combined adjusted gross income ($700–$28,000/mo), payer owes income share; minimum $80/mo | Income-shares model | Ohio Rev. Code § 3119.021 and § 3119.04; JFS 07767 Basic Child Support Schedule (Rev. 6/2023) |
| Pennsylvania | Schedule by combined net income ($1,300–$30,000/mo), payer owes income share | Income-shares model | 231 Pa. Code Rules 1910.16-3 and 1910.16-3.1 |
| Texas | 20/25/30/35/40% of net income for 1–5+ children (income capped at $11,700/mo) | Percentage-of-income model | Tex. Fam. Code §§ 154.125–154.129 |
| Virginia | Schedule by combined gross income ($0–$42,500/mo), payer owes income share; minimum $68/mo | Income-shares model | Va. Code § 20-108.2 |
| Wisconsin | 17/25/29/31/34% of gross income for 1–5+ children | Percentage-of-income model | Wis. Admin. Code DCF § 150.03 |
Download this table as CSV → Free to reuse under CC BY 4.0: cite StateTally and link this page. Each row carries the statute and the date it was last checked.
Covering 17 states so far — more are added in weekly batches. Figures reflect each page's last review date; click a state for the calculator, worked examples, and source citations.