Retroactive Child Support in Florida: The 24-Month Lookback in Section 61.30(17)

A parent who waits to file for child support does not necessarily lose the months that went by. Florida lets the court reach back before the petition and award support for the period when the parents were already living apart. The reach is limited, though, and the rules for computing it are specific enough that both sides should know them before the first hearing.

The statute

Section 61.30(17) applies to an initial determination of child support, whether it arises in a paternity action, a dissolution of marriage, or a petition for support during the marriage. In those cases the court has discretion to award support retroactive to the date when the parents did not reside together in the same household with the child, but not more than 24 months before the petition was filed.

Three pieces of that sentence do most of the work.

Initial determination. The lookback is for a first support order. It is not a tool for reaching back on an existing order. A parent asking to change an order already in place is in modification territory, and modification generally runs from the filing date of the supplemental petition, not earlier.

When the parents stopped living together. The starting point is the date the household split, not the date of the child's birth and not the date one parent first asked for money. If the parents lived together until March of last year, March of last year is the earliest possible start, even if the child is five.

Not more than 24 months before filing. The cap is measured backward from the filing date. A parent who separated four years ago and files today can reach back two years, not four. Every month of delay past the 24-month mark is a month that cannot be recovered.

The word "discretion" matters too. The statute permits a retroactive award; it does not require one. The court decides whether to award it and for what period within the cap.

Which income the court uses

Paragraph (a) answers a question that otherwise produces a fight in every case: whose income, and from when?

The court applies the guidelines schedule in effect at the time of the hearing. For income, the obligor is allowed to demonstrate his or her actual income, as defined in subsection (2), during the retroactive period. If the obligor does not make that showing, the court uses the obligor's income at the time of the hearing to compute support for the entire retroactive period.

That allocation of the burden is the practical point. A paying parent whose income rose sharply since the separation has every reason to produce pay stubs, tax returns, and bank records for the earlier months, because otherwise the higher current income is applied backward. A paying parent whose income dropped will find the current figure working in their favor, and the other side will want the historical records instead. Either way, the records for the lookback months are evidence, and they should be gathered early.

Credit for what was already paid

Paragraph (b) requires the court to consider all actual payments made by a parent to the other parent, to the child, or to third parties for the benefit of the child throughout the proposed retroactive period.

This is where informal arrangements become important. Rent paid on the other parent's apartment, daycare tuition paid directly to the provider, health insurance premiums, school expenses, cash handed over at exchanges: all of it is potentially a credit against the retroactive figure. The parent claiming the credit needs to prove it, and a payment that cannot be traced to a check, a transfer record, or a receipt is hard to prove two years later.

The practical advice runs in both directions. A parent paying informally while a case is not yet filed should pay in a way that leaves a record and should keep that record. A parent receiving informal payments should keep track of them as well, because the court will hear about them either way.

Paying the retroactive amount

Paragraph (c) says the court should consider an installment payment plan for retroactive support. Twenty-four months of support can be a large number, and the statute recognizes that few parents can pay it in a lump sum on top of the ongoing obligation. The usual result is a monthly add-on to the current support payment until the retroactive balance is paid off.

The installment amount is negotiable in mediation and arguable at hearing. A parent facing a large retroactive figure should come prepared to show what can realistically be paid each month without defaulting on the current obligation.

Running the numbers

The retroactive calculation is the ordinary guidelines calculation applied to a past period, adjusted for proven income and credited for proven payments. Our Florida child support calculator produces the monthly guideline figure for any set of inputs. Run it once with current incomes and once with the incomes the paying parent can document for the lookback period, multiply each by the number of months, and subtract documented payments. That gives both parents a realistic range before anyone walks into a courtroom in Duval, Clay, Nassau, or St. Johns County.

Remember that the guidelines figure is only a starting point. Overnights, child care, and health insurance during the lookback period all affect the result, and they may have been different then than they are now.

Common mistakes

Waiting. The 24-month cap is unforgiving. A parent who has been separated for a year and a half and is thinking about filing should understand that every month of delay past the two-year mark is lost permanently.

Assuming informal payments do not count. They do, if they can be proven. Paying parents sometimes concede a retroactive figure without ever raising the payments they made.

Ignoring the income burden. A paying parent who arrives without records for the lookback period has effectively agreed to have current income applied to all of it.

Treating it as a modification tool. A parent with an existing order who wants more support, or less, cannot use subsection (17) to reach back before filing.

Where the calculator ends and the lawyer begins

The calculator gives the monthly figure. It cannot tell you when the court will find the household actually split, whether a set of cash payments will be credited, or how the court will weigh a request for a short installment period against an obligor's ability to pay. Those are fact questions, and they are the questions a consultation is for.

Steven C. Fraser, Esq., Florida Bar No. 625825, Florida Supreme Court Certified Family Mediator No. 37256 CFR. Jacksonville, Florida. 877-862-7188.