Check what your agreement or court order says 2. The law says that parents are responsible for financially supporting their dependent children. Things You Should Know About Child Support Child Support Supportive Child Support Payments However, florida does allow for some exceptions. At what age does child support end in florida . The maximum age a child can receive child support in florida is 19 years old. Termination of child support in florida. However, this isn’t always true. When the child has special needs; As a general rule, the legal duty of a parent to support his child ceases at the age of majority, which in the state of florida is 18 years old. She will not however receive her diploma until may as she. If a child is emancipated by the court so is no longer under parental control child support will stop. Child support will terminate at age 19 unless the child has a physical or mental disability, as determined by a federal or state government agency, that ...