Florida HOA & Condo Special Assessment Calculator

How this calculator works

A Florida community-association special assessment is a one-time levy outside the regular annual budget — adopted by the board (or by member vote, depending on the declaration) for a stated purpose: a SIRS shortfall, an emergency roof replacement, a hurricane-deductible cost-share, a structural-engineering investigation. The calculator returns four numbers that matter to a unit owner who has just received the notice or to a board member who is about to vote on it:

1. Your share of the principal. The total assessment multiplied by your unit's percentage of common expenses (or by 1/n if your association is equal-share). For a Florida condominium, that percentage is set in the declaration's Exhibit B or Schedule B — the same percentage that governs your monthly maintenance fees. For an HOA, the allocation method lives in the declaration.
2. The per-installment payment. Either the full lump sum or, if the board has authorized a payment plan, the monthly installment under standard amortization. With interest, the math is exactly the same as a fixed-rate mortgage: M = P × r / (1 − (1 + r)^−n).
3. The total interest. Plan-length times monthly-payment minus principal. Owners frequently underestimate this — a 24-month plan at 8% on a $15,000 assessment adds roughly $1,300 in carrying interest.
4. The procedural and lien notes. What notice the association is required to give before adoption, and what happens if the owner does not pay. These are statutory rules under F.S. § 718.112(2)(c), § 718.116, and § 720.3085 — they are not optional, and they are the most common ground on which a special assessment is later challenged or vacated.

The procedural rules board members forget

For a Florida condominium, F.S. § 718.112(2)(c) requires:

• At least 14 days of mailed and posted notice to unit owners before the meeting where the assessment is adopted.
• An agenda that identifies "special assessment" as a specific line item. A meeting agenda that buries the assessment under "new business" or "manager's report" is procedurally defective.
• The notice must specify the purpose, the amount, and the payment terms. "We will be discussing a possible special assessment" is not sufficient.
• A meeting at which the board (or membership, if the declaration requires) records the vote. The vote must be entered into the minutes; the assessment is not adopted by a written-consent procedure unless the governing documents explicitly allow it.

A special assessment adopted in violation of these rules is voidable. Owners can challenge it in court (typically by seeking a temporary injunction against collection), and the typical outcome is that the association has to re-adopt it properly — including re-noticing and re-meeting — losing months of cash-flow timing in the process.

For an HOA, F.S. § 720.303 sets a similar notice-and-meeting framework, with the specific timing and method governed by the declaration. Most HOA declarations adopt the 14-day mailed-and-posted standard by default; some are more permissive, some less.

Liability and remedies

Per F.S. § 718.116(1) and § 720.3085(2), the unit owner of record at the time the special assessment is adopted is liable for the amount due — jointly and severally with any subsequent owner. When the property is sold, the estoppel certificate issued under § 718.116(8) or § 720.30851 discloses the outstanding balance, and the parties prorate it at closing.

If the owner does not pay:

• The association may record a claim of lien against the unit / parcel.
• The lien attaches with statutory priority (per § 718.116(5) for condos and § 720.3085 for HOAs).
• The association may foreclose the lien through judicial foreclosure following the notice procedures in § 718.121 (condos) or § 720.3085(1)–(4) (HOAs).
• Statutory interest (up to 18% per § 718.116(3) unless the declaration specifies a different rate), reasonable attorney fees, and recording costs are added to the unpaid balance.

This is why special assessments matter beyond their dollar amount: a $20,000 unpaid assessment can become a $35,000+ judgment with attorney fees and statutory interest layered on, and the lien is enforceable through foreclosure.

A worked example

A 50-unit oceanfront condominium adopts a $1.5 million special assessment to fund storm-shutter replacement after a hurricane damage assessment. The building is equal-share (the declaration allocates common expenses 1/50 across all units), and the board has authorized a 12-month installment plan at 6% APR.

• Per-unit share: $1.5M ÷ 50 = $30,000.
• Per-installment payment at 6% APR / 12 months: M = 30000 × 0.005 / (1 − 1.005^−12) ≈ $2,581.98.
• Total paid over the plan: $2,581.98 × 12 = $30,983.78.
• Total interest: $983.78 per unit.

Now consider a non-equal-share association: a 50-unit building where the penthouse owns 5% of common elements (vs. 1.5% for the typical floor-plan units). For the same $1.5M assessment:

• Penthouse share: $1.5M × 5% = $75,000.
• Typical-unit share: $1.5M × 1.5% = $22,500.

This is why most special-assessment disputes turn on the declaration's percentage table, not on the assessment amount itself. The board does not get to allocate by some other formula unless the declaration grants that discretion.

What the calculator does not do

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

• Review the declaration. The unit-share percentage you enter has to come from the recorded declaration's Exhibit B or Schedule B. If you do not have access to that document, ask the association manager — owners have a statutory right to inspect it under F.S. § 718.111(12) (condos) and § 720.303(5) (HOAs).
• Determine whether the assessment was properly adopted. That is a fact-specific legal question (was the notice timely, was the agenda specific, was the vote recorded). If you suspect a procedural defect, consult a Florida-licensed community-association attorney.
• Allocate among emergency vs. non-emergency purposes. Some governing documents grant the board broader authority for emergency assessments (hurricane damage, life-safety repair) than for non-emergency assessments. The threshold and definition live in the declaration.
• Compute the tax basis adjustment. For investment properties, a special assessment that funds a capital improvement may be capitalizable; for owner-occupied units, it is generally not deductible. Consult a Florida-licensed CPA for property-specific guidance.
• Apply to cooperatives under Chapter 719. § 719 incorporates parts of § 718 by reference but has its own assessment-procedure provisions; verify against your cooperative's governing documents.

How this page is maintained

The procedural rules in § 718.112(2)(c), § 718.116, and § 720.3085 are stable provisions that have not moved materially since 2014 — they were modestly refined by HB 1021 (2024) on member-meeting procedural requirements, but the 14-day notice cadence is unchanged. SIRS-driven special assessments (per the post-SB-4-D regime, see the Reserve Funding Adequacy calculator) are the most active source of new community-association special assessments in 2025–2026; we monitor every legislative session for further refinements to the adoption procedure and the lien remedies.

Last reviewed: 2026-05-14 against F.S. § 718.116(10)–(11), § 718.112(2)(c), § 718.121, § 720.303(6), § 720.3085.