Oklahoma Department of Human Services
Sequoyah Memorial Office Building, 2400 N. Lincoln Blvd. • Oklahoma City, OK 73105
(405) 521-3646 • Fax (405) 521-6684 • Internet: www.okdhs.org
Child Support Services: Guidelines and Computation

Effective July 1, 2009, the Oklahoma Child Support Guidelines law has been amended, see Title 43 Sections 118 through 118I of the Oklahoma statutes. The new state law complies with new federal law for establishment of meaningful medical support orders for minor children in child support orders, see 42 U.S.C. Section 652(f); 666(a)(19)(A) and 45 C.F.R. Sections 302.56; 303.31; 303.32.

The child support computation form is the legal document used to calculate the child support obligation for a noncustodial parent (obligor) due on or after July 1, 2009, as required pursuant to Section 120 of Title 43 of the Oklahoma statutes. The form must be signed by the judge and attached as an exhibit to orders which establish or modify a child support obligation.

All links below open in new window:

Oklahoma Statute: Title 43 Section 118; 118A; 118B; 118C; 118D; 118E; 118F; 118G; 118H; 118ITitle 43 Section 120
Code of Federal Regulations: 45 C.F.R. Section 302.56; 45 C.F.R. Section 303.31; 45 C.F.R. Section 303.32
United States Code: 42 U.S.C. Section 652(f); 42 U.S.C. Section 666(a)(19)(A)

Child Support Guidelines: Resources and Tools

Excel and Online Calculators

Fillable Forms

Form Instructions

Choose either the Microsoft Excel computation or Web based online version for calculating monthly child support.

*In order for the Excel calculator to function correctly please save to your computer hard drive or location of your choice.

1Use to calculate the current monthly child support obligation due on or after July 1, 2009, per Title 43 Sections 118 through 118I.
2Use to calculate judgments in establishment cases applying the child support guidelines law for time periods through June 30, 2009 per Title 10 Section 83 and Title 56 Section 238.6B

If you encounter difficulties using any of the above applications or calculators please contact us by e-mail

Last Updated:  2/18/2015