Child support in Florida is set by the statewide guidelines of § 61.30, Florida Statutes, in circuit court family divisions. Support can be established, enforced, and modified by the court — and the Florida Department of Revenue's child support program provides services in many cases (§ 409.2557, Fla. Stat.).
Support is calculated from both parents' net incomes and the number of children under the § 61.30 guidelines schedule. Both parties file financial affidavits and a child support guidelines worksheet under the mandatory disclosure rule (Fla. Fam. L. R. P. 12.285).
Support orders are enforceable by income withholding (§ 61.1301, Fla. Stat.) and by motion for civil contempt under Fla. Fam. L. R. P. 12.615, where the court can order payment of a purge amount. Delinquency can also trigger driver license suspension (§ 61.13016, Fla. Stat.). The Department of Revenue's Title IV-D program pursues enforcement at no charge in eligible cases (§ 409.2557).
Either parent may seek modification on a substantial change in circumstances (§ 61.14, Fla. Stat.). Under the guidelines, a change is generally substantial when the recalculated amount differs by at least 15 percent or $50, whichever is greater (§ 61.30(1)(b), Fla. Stat.).
Procedural information only — not legal advice and not a substitute for an attorney. Statewide rules are summarized with citations; local practice varies by division and judge, so verify deadlines with the Calhoun County clerk and review the assigned judge's verified preferences on the Calhoun County page.