Florida HOA & Condo Late Fee + Past-Due Interest Calculator

How this calculator works

A Florida community-association late fee is a different statutory instrument from a fine. A fine, under F.S. § 718.303 / § 720.305, is a penalty for violating the governing documents — and that's the Fine Calculator on this site. A late fee, under F.S. § 718.116(3) / § 720.3085(3), is the carrying cost of an unpaid assessment. The statutory caps, procedural requirements, and lien remedies are different.

This calculator computes the full pre-lien picture for a delinquent assessment:

1. Principal owed. Monthly assessment × months overdue.
2. Late fee. Greater of $25 or 5% of the past-due amount per § 718.116(3) / § 720.3085(3). The statutory dollar floor binds for small balances; the percentage binds for larger ones.
3. Past-due interest. Annual rate per the declaration or 18% statutory default (the lesser of the two; 18% is the statutory cap). Accrued on the average outstanding balance — interest scales arithmetically with the months of delinquency.
4. Attorney-fee exposure. Florida law allows recovery of reasonable attorney fees by the prevailing party in collection litigation (§ 718.116(6)(b) / § 720.3085(1)(b)). Surfaced as a projected line so the delinquent owner sees the full downside before the collection proceeds.

The procedural ladder for collection is set by F.S. § 718.121 (condos) and § 720.3085(1)(a) (HOAs):

• 45 days of pre-lien notice to the owner by certified mail before a claim of lien can be recorded.
• Recording of claim of lien at the county Official Records.
• An additional 45 days of pre-foreclosure notice after the lien is recorded.
• Judicial foreclosure complaint filed in circuit court if the balance remains unpaid.

The full procedure typically takes 4–8 months from first delinquency to foreclosure judgment, depending on judicial calendar and any defenses raised. The judgment includes principal + late fee + accrued interest + recoverable attorney fees + recording and filing costs — frequently 2–5× the original assessment.

The late-fee formula (greater of $25 or 5%)

The Florida statutory late fee structure is intentionally bimodal:

• Small balances: The $25 dollar floor binds. A $50 monthly assessment that's one month overdue ($50 past-due) accrues a $25 late fee — half of the past-due balance itself.
• Larger balances: The 5% percentage binds. A $500 monthly assessment 2 months overdue ($1,000 past-due) accrues a $50 late fee — the percentage exceeds the dollar floor.

A declaration can specify a lower percentage (e.g., 3%) but never higher than 5% — and never below the $25 dollar floor. The statute is a maximum; the declaration is the floor up to the maximum.

Per F.S. § 718.116(3), the late fee can be assessed only once per delinquent installment — it does not compound monthly on the same installment. Each new month's delinquency triggers its own late fee.

The interest formula

Past-due interest accrues at the annual rate specified in the declaration, capped at 18% per annum statutorily. If the declaration is silent, the statutory 18% applies as the default.

Interest accrues on the outstanding balance, not the original principal. For an owner who fell two months behind on a $500 monthly assessment:

• Month 1 of delinquency: $500 owed, accrues 1 month of interest
• Month 2: $1,000 owed (added another month's assessment), accrues 1 month of interest on the new $500 plus 1 month of interest on the prior $500

Mathematically: total interest ≈ (monthly assessment × months × (months + 1) ÷ 2) × monthly rate. The arithmetic-series accrual reflects the linear growth of the past-due balance.

At 18% per annum, the monthly rate is 1.5%. For two months overdue at $500/month: (500 × 2 × 3 ÷ 2) × 0.015 = $22.50 of accrued interest. For twelve months overdue: (500 × 12 × 13 ÷ 2) × 0.015 = $585.

A worked example

A Florida condo unit owner falls two months behind on $500/month assessments. The declaration specifies a 5% late fee and is silent on interest rate (so the statutory 18% applies). The association has engaged collection counsel who estimates $2,500 in recoverable attorney fees if the collection proceeds to a recorded lien.

The calculator returns:

• Principal: $1,000 (2 months × $500)
• Late fee: $50 (5% of $1,000, exceeds $25 floor)
• Accrued interest: $22.50 (arithmetic series at 18% APR)
• Subtotal pre-attorney: $1,072.50
• Total with attorney exposure: $3,572.50

The 45-day pre-lien notice required by F.S. § 718.121 binds before any lien can be recorded. The owner who pays the subtotal during the notice period avoids the attorney exposure entirely.

Now consider the same owner who lets the delinquency run for 12 months while ignoring notices:

• Principal: $6,000
• Late fee: $300 (5% of $6,000)
• Accrued interest: $585
• Subtotal pre-attorney: $6,885
• Total with attorney exposure: $9,385 (or higher — contested foreclosure attorney fees can run $10,000–$15,000+)

A $6,000 principal becomes a $9,000–$15,000+ judgment, foreclosable against the unit. This is why "I'll deal with it next month" is the most expensive delinquency strategy in Florida community-association law.

What the calculator does not do

This calculator is a planning and verification tool. It does not:

• Replace the demand letter or pre-lien notice. F.S. § 718.121 specifies the content and delivery requirements for the pre-lien notice; this calculator computes the dollar amount, not the procedural step.
• Account for partial payments. If the owner has made partial payments, calculate principal as the cumulative past-due assessments minus payments received. Interest accrual then runs against the actual outstanding balance over time, which deviates from the simple arithmetic series above.
• Handle special assessments separately. A past-due special assessment accrues late fees and interest under the same rules as a regular assessment. If the owner has both a regular assessment delinquency and a special assessment delinquency, run the calculator twice and sum the results.
• Resolve declaration / statute conflicts. Some older Florida declarations specify pre-2014 interest rates or fee structures. The post-2014 statutory caps bind regardless. If your declaration specifies something contrary to current statute, the statute governs; consult an HOA attorney for the specific declaration.
• Project foreclosure timing. The 45-day notice + 45-day pre-foreclosure + judicial foreclosure timeline depends heavily on the county circuit-court calendar. Miami-Dade and Broward foreclosure dockets are notoriously slow (6–12 months from filing to judgment); rural-county dockets can move in 60–90 days. Plan accordingly.

How this page is maintained

The substantive statutory caps ($25 / 5% late fee; 18% interest) have not moved since 2014. HB 1021 (2024) made procedural refinements to the pre-lien notice content and certified-mail-versus-electronic-delivery rules; we monitor each legislative session for further refinements. If the Florida legislature raises the caps or alters the lien procedure, this page is updated and re-stamped within the quarter.

Last reviewed: 2026-05-14 against F.S. § 718.116(3), § 718.121, § 720.3085.