Each state's guideline formula is re-verified against its official source on the cadence noted in our methodology. This table is generated directly from the same data that drives each state's calculator — it is not a separate, hand-maintained log.
| State | Guideline version | Effective date | Last verified | Official source |
|---|
| Alabama | 2022-AL-v1 | 2022-05-01 | 2026-07-11 | Alabama Rules of Judicial Administration, Rule 32 (Alabama Supreme Court) |
| Alaska | 2023-AK-v1 | 2023-10-16 | 2026-07-13 | Alaska Court System — Alaska Civil Rule 90.3 |
| Arizona | 2022-AZ-v1 | 2022-01-01 | 2026-07-11 | Arizona Child Support Guidelines (Arizona Supreme Court) |
| Arkansas | 2022-AR-v1 | 2022-10-06 | 2026-07-13 | Arkansas Judiciary — Administrative Order Number 10 (Arkansas Child Support Guidelines) |
| California | 2025-CA-SB343-v1 | 2025-09-01 | 2026-07-11 | California Family Code (via leginfo.legislature.ca.gov) |
| Colorado | 2026-CO-HB25-1159-v1 | 2026-03-01 | 2026-07-11 | Colorado Revised Statutes (via HB 25-1159, 2025 session) |
| Connecticut | 2015-CT-v1 | 2015-07-01 | 2026-07-13 | Connecticut Judicial Branch — Commission for Child Support Guidelines |
| Delaware | 2026-DE-v1 | 2026-02-01 | 2026-07-13 | The Family Court of the State of Delaware (Form 509, Rules 500-509) |
| District of Columbia | 2016-DC-v1 | 2016-01-01 | 2026-07-13 | DC Law Library — D.C. Code §§ 16-916.01, 16-916.01a |
| Florida | 2025-FL-v1 | 2023-07-01 | 2026-07-11 | Florida Statutes (Florida Senate) |
| Georgia | 2026-GA-v1 | 2024-07-01 | 2026-07-12 | Georgia General Assembly — SB 454 (2026 session), amending O.C.G.A. § 19-6-15 |
| Hawaii | 2024-HI-v1 | 2024-04-01 | 2026-07-13 | Hawai'i State Judiciary (2024 Child Support Guidelines, RG-AC-508) |
| Idaho | 2025-ID-v1 | 2025-07-01 | 2026-07-13 | Idaho Supreme Court — Idaho Rules of Family Law Procedure, Rule 120 |
| Illinois | 2026-IL-v1 | 2026-03-20 | 2026-07-11 | Illinois Department of Healthcare and Family Services (HFS) |
| Indiana | 2024-IN-v1 | 2024-01-01 | 2026-07-11 | Indiana Child Support Rules and Guidelines (Indiana Supreme Court) |
| Iowa | 2026-IA-v1 | 2026-01-01 | 2026-07-13 | Iowa Judicial Branch, Iowa Court Rules Chapter 9 (Child Support Guidelines) |
| Kansas | 2025-KS-v1 | 2025-07-01 | 2026-07-13 | Kansas Judicial Branch — Kansas Child Support Guidelines (Administrative Order 2025-RL-121) |
| Kentucky | 2025-KY-v1 | 2025-07-01 | 2026-07-13 | Kentucky Revised Statutes § 403.212 (Legislative Research Commission) |
| Louisiana | 2025-LA-v1 | 2025-01-01 | 2026-07-11 | Louisiana Revised Statutes (Legislature) |
| Maine | 2022-ME-v1 | 2022-01-01 | 2026-07-13 | Maine Department of Health and Human Services / 19-A M.R.S. Chapter 63 |
| Maryland | 2022-MD-v1 | 2022-07-01 | 2026-07-13 | Maryland General Assembly, Md. Code, Family Law § 12-204 |
| Massachusetts | 2025-MA-v1 | 2025-12-01 | 2026-07-13 | Massachusetts Trial Court — Probate and Family Court, Child Support Guidelines Worksheet (CJD 304) |
| Michigan | 2025-MCSF-v1 | 2025-01-01 | 2026-07-11 | Michigan Child Support Formula Manual (State Court Administrative Office) |
| Minnesota | 2016-MN-v1 | 2016-01-01 | 2026-07-13 | Minnesota Statutes, Chapter 518A (Office of the Revisor of Statutes) |
| Mississippi | 2020-MS-v1 | 1994-01-01 | 2026-07-13 | Mississippi Department of Human Services — Miss. Code Ann. § 43-19-101 |
| Missouri | 2026-MO-v1 | 2026-01-01 | 2026-07-12 | Missouri Supreme Court, Form 14 Schedule of Basic Child Support Obligations (2024 Guideline Review) |
| Montana | 2026-MT-v1 | 2026-02-01 | 2026-07-13 | Montana Department of Public Health & Human Services, Child Support Services Division (ARM 37.62) |
| Nebraska | 2026-NE-v1 | 2026-01-01 | 2026-07-13 | Nebraska Judicial Branch — Nebraska Supreme Court Rules, Chapter 4, Article 2 (Child Support Guidelines) |
| Nevada | 2020-NV-v1 | 2020-02-01 | 2026-07-13 | Nevada Division of Welfare and Supportive Services (Nev. Admin. Code § 425.140) |
| New Hampshire | 2025-NH-v1 | 2025-04-01 | 2026-07-13 | New Hampshire Department of Health and Human Services — Bureau of Child Support Services |
| New Jersey | 2025-NJ-v1 | 2025-09-01 | 2026-07-12 | New Jersey Court Rules, Appendix IX-F (Administrative Office of the Courts) |
| New Mexico | 2024-NM-v1 | 2024-01-01 | 2026-07-13 | New Mexico Courts / Human Services Department — NMSA 1978 § 40-4-11.1, 8.50.108 NMAC |
| New York | 2026-NY-CSSA-v1 | 2026-03-01 | 2026-07-11 | New York State Child Support Standards Act (CSSA) |
| North Carolina | 2023-NC-v1 | 2023-01-01 | 2026-07-12 | North Carolina Conference of Chief District Court Judges (AOC-A-162) |
| North Dakota | 2023-ND-v1 | 2023-07-01 | 2026-07-13 | North Dakota Legislative Council — N.D. Admin. Code § 75-02-04.1-10 |
| Ohio | 2023-OH-v1 | 2023-06-01 | 2026-07-12 | Ohio Department of Job and Family Services (JFS 07767, Rev. 6/2023) |
| Oklahoma | 2013-OK-v1 | 2009-07-01 | 2026-07-13 | Oklahoma Department of Human Services — Child Support Services (43 O.S. §§ 118-119) |
| Oregon | 2007-OR-v1 | 2007-02-09 | 2026-07-13 | Oregon Department of Justice, Child Support Program (OAR 137-050) |
| Pennsylvania | 2026-PA-v1 | 2026-01-01 | 2026-07-12 | Pennsylvania Rules of Civil Procedure (Pa.R.Civ.P. 1910.16-3) |
| Rhode Island | 2023-RI-v1 | 2023-07-01 | 2026-07-13 | Rhode Island Family Court — Administrative Order 2023-02 |
| South Carolina | 2024-SC-v1 | 2024-01-15 | 2026-07-13 | South Carolina Department of Social Services, Child Support Guidelines (DSS Booklet 2819, Nov. 2024) |
| South Dakota | 2021-SD-v1 | 2021-07-01 | 2026-07-13 | South Dakota Department of Social Services — SDCL 25-7-6.2 |
| Tennessee | 2021-TN-v1 | 2021-10-01 | 2026-07-12 | Tennessee Department of Human Services, Child Support Guidelines (Tenn. Comp. R. & Regs. 1240-02-04) |
| Texas | 2025-TX-v1 | 2025-09-01 | 2026-07-10 | Texas Office of the Attorney General — Child Support Division |
| Utah | 2023-UT-v1 | 2023-01-01 | 2026-07-13 | Utah State Legislature — Utah Code Title 81, Chapter 6, Part 3 (Child Support Tables) |
| Vermont | 2024-VT-v1 | 2024-01-02 | 2026-07-13 | Vermont Office of Child Support (OCS) — 15 V.S.A. §§ 654, 656 |
| Virginia | 2025-VA-v1 | 2025-07-01 | 2026-07-12 | Code of Virginia § 20-108.2 (Virginia Legislative Information System) |
| Washington | 2026-WA-v1 | 2026-01-01 | 2026-07-12 | Revised Code of Washington § 26.19.020 (Washington State Legislature) |
| West Virginia | 2023-WV-v1 | 2023-01-01 | 2026-07-13 | West Virginia Legislature — W. Va. Code §§ 48-13-301 to 48-13-403 |
| Wisconsin | 2020-WI-v1 | 2020-07-01 | 2026-07-12 | Wisconsin Department of Children and Families, Bureau of Child Support (Wis. Admin. Code DCF 150) |
| Wyoming | 2026-WY-v1 | 2018-07-01 | 2026-07-13 | Wyoming Legislature — Wyo. Stat. § 20-2-304 |