A modification of child support, or alimony as well, is based upon an unforseen, involuntary, permanent and substantial change in circumstances. Florida statute 61.14 provides the statutory basis for a modification of child support and alimony.
If the court, after entertaining a petition for modification of support, either upward or downward, finds that there was a change in circumstances, or the financial position of either party has changed, the court can enter an order, retroactive to the date of filing the petition, granting the modification.
Often times it takes a considerable amount of time to have a matter scheduled for hearing before the court. The length of time varies between the particular judge and the courthouse in which the petition is pending.