Statutory Interest Calculator - Florida

Florida uses quarterly CFO-published rates under Fla. Stat. § 55.03 rather than one fixed annual percentage. For the second quarter of 2026 (April through June), the rate is eight point two five percent (8.25%) per year, published March 31, 2026, based on the Federal Reserve Bank of New York discount rate plus four hundred basis points. The same framework applies to judgments and to late payments on contracts without a specified rate under Fla. Stat. §§ 215.422(3)(b) and 687.01. Other 2026 quarters have different CFO rates on the statutory publication schedule. Civil usury caps many loans up to five hundred thousand dollars ($500,000) at eighteen percent (18%) under § 687.03. Match the quarter to your claim before quoting a rate.

Timing depends on claim type. Pre-judgment statutory interest on qualifying contract and vendor claims often runs from when payment was due and wrongfully withheld, supported by invoices and notices under Fla. Stat. §§ 215.422(3)(b), 687.01, and the § 55.03 rate for the period. Post-judgment interest under § 55.03 accrues on unpaid judgment principal after entry while the CFO rate for the controlling quarter applies. Long-running judgments may receive an annual January 1 adjustment under § 55.03(3). Build a chronology of due dates, judgment entry, CFO publication dates, and partial payments. The Q2 2026 eight point two five percent rate applies to accrual periods in April through June 2026, not necessarily the entire life of a multi-year debt without segmentation.

If your contract states a permissible interest rate within Fla. Stat. § 687.03 and related usury rules, that rate may control instead of the § 55.03 CFO rate for the prejudgment period. When the contract is silent on interest, § 55.03 supplies the rate for qualifying late payments under §§ 215.422(3)(b) and 687.01—eight point two five percent (8.25%) for Q2 2026—not an arbitrary finance charge. A fifteen percent negotiated APR and the CFO judgment rate are different analytical paths. Courts will not apply § 55.03 when a valid contract rate governs unless the clause fails. Compare your agreement to § 687.03 usury limits before demanding statutory interest on a silent invoice.

Fla. Stat. § 55.03 establishes how the CFO sets the rate of interest on judgments and related statutory claims; routine planning treats the published rate, such as eight point two five percent (8.25%) for Q2 2026, as simple interest on principal. The statute does not mandate compounding interest on interest in ordinary accrual. Contracts may provide compound terms if lawful under § 687.03 and related law. This calculator uses simple interest only. For judgments spanning multiple CFO quarters, segment each period at its published rate rather than compounding. Consult Florida counsel before capitalizing accrued interest into principal or recording a lien under Fla. Stat. § 55.10.

Pre-judgment statutory interest compensates for delay before judgment on qualifying contract, vendor, and related claims using the § 55.03 CFO rate for the accrual period—eight point two five percent (8.25%) for Q2 2026. Post-judgment interest under the same statute runs on unpaid judgment principal after entry, with quarterly rate changes and possible January 1 annual adjustments under § 55.03(3). The legal theories overlap more than in California, where Cal. Civ. Code § 3289(b) and § 685.010 are distinct postures, but start dates and quarter segmentation still matter. A pre-suit demand should cite the CFO quarter covering the delinquency period, not only the post-judgment quarter after entry.

Use simple interest: Interest equals principal times annual rate times years. At eight point two five percent (8.25%) for Q2 2026 under Fla. Stat. § 55.03, twenty-five thousand dollars ($25,000) for eighteen months equals three thousand ninety-three dollars and seventy-five cents ($3,093.75) ($25,000 × 0.0825 × 1.5). Partial months may use (Principal × 8.25%) ÷ 365. Long spans crossing CFO quarters require separate segments for each published rate on myfloridacfo.com. Partial payments reduce principal going forward. TheLegalCalc multiplies principal, rate, and years you enter. Verify whether § 687.03 caps your contract rate and confirm the controlling quarter with a Florida attorney before filing or enforcing.