Florida HO-6 Loss-Assessment Coverage Sizing Calculator

How this calculator works

The Master Policy Deductible Allocation Calculator on this site asks a reactive question: "the master policy paid a claim — what's my share?" This calculator asks the prospective version: "what HO-6 loss-assessment coverage limit should I be carrying right now, before the next storm or special assessment?" It is the renewal-shopping companion to the master-policy reading exercise.

The math has four moves:

1. Master-policy hurricane deductible (dollars). F.S. § 627.0625 requires Florida residential property policies to carry a separate hurricane deductible. On commercial-residential master policies, the deductible is computed as a percentage of insured value (Coverage A on the master) — 2% to 10% in the post-2022 Florida market, with 5% as the coastal-condo median. Insured value × percentage = dollar deductible.
2. Your share of that deductible. F.S. § 718.111(11)(d) makes the master deductible a common expense, allocated by the same percentages as common expenses generally. Master deductible × your share percentage = your hurricane-deductible share.
3. Add a buffer for non-hurricane special assessments. Post-Surfside Florida has produced a steady stream of structural, litigation, and deferred-maintenance assessments that flow through loss-assessment coverage in the same way as hurricane-deductible allocations. The default buffer is $10,000; older coastal buildings warrant more.
4. Round up to a clean increment. Florida HO-6 carriers quote loss-assessment coverage in $5,000 increments above $25,000. We round the share + buffer + HO-6 deductible up to the next $5K to produce a number an agent will actually bind.

The output is a target HO-6 loss-assessment limit, a dollar gap vs your current limit, and a verdict (adequately insured, mostly adequate, underinsured, severely underinsured, or uninsured).

Why this matters in Florida specifically

Three structural facts about Florida condominium insurance drive the importance of this sizing exercise:

The master-policy hurricane deductible is large in absolute dollars. On a $50M Florida coastal building with a 5% master-policy hurricane deductible, the deductible is $2.5 million per hurricane event. Spread across 100 equal-share units, each unit owner's share is $25,000. F.S. § 718.111(11)(d) makes that allocation automatic — the association cannot waive it, and the unit owner cannot opt out.

Loss-assessment coverage does not auto-scale. HO-6 loss-assessment coverage is a flat limit you choose — typically the same limit a 1%-share unit carries as a 5%-share unit. The 5%-share unit's share of the same $2.5M deductible is $125,000, but if both units carry $10,000 of loss-assessment coverage, the penthouse owner is dramatically more exposed. The post-2022 Florida insurance market has surfaced this scaling problem, and Florida-licensed 2-20 agents now routinely quote $100,000+ of loss-assessment coverage on higher-share or higher-risk units.

Post-Surfside, non-hurricane special assessments matter too. The June 2021 Champlain Towers South collapse drove a cascade of milestone-inspection (F.S. § 553.899) and structural-integrity-reserve (F.S. § 718.112(2)(g)) requirements across Florida. Coastal condos built before the late 1990s are working through structural repair assessments that frequently run $30,000-$150,000+ per unit. Those flow through the same HO-6 loss-assessment line as hurricane-deductible allocations; the buffer in this calculator is the protection against them.

A worked example

A 100-unit Florida oceanfront condo (assume mid-rise, 1980s construction, on the barrier islands of central Florida) carries a master policy with:

• Insured building value (Coverage A on the master): $50 million
• Master-policy hurricane deductible: 5% of insured value = $2.5 million
• 100 equal-share units = 1% share per unit

You own a 1%-share unit. You want a $10,000 buffer for potential non-hurricane special assessments (the building has a known upcoming milestone inspection but the SIRS-driven reserves look adequate, so you're not yet anticipating a major structural assessment). Your current HO-6 declarations page shows $10,000 of loss-assessment coverage and a $500 HO-6 deductible.

The calculator returns:

• Share of master hurricane deductible: $25,000
• Share + buffer total: $35,000
• Required gross HO-6 limit (share + buffer + HO-6 deductible): $35,500 → rounded up to $40,000
• Recommended HO-6 loss-assessment limit: $40,000
• Current gap: $30,000 (you're carrying $10K against a $40K target)
• Coverage verdict: Underinsured

The remedy is concrete: at your next HO-6 renewal, raise the loss-assessment line from $10,000 to $40,000 (or $50,000, the next conventional bracket). The premium impact is typically $50-$150 per year. The exposure you close is roughly $30,000 of out-of-pocket on a single hurricane event.

Re-run the math for a 5%-share penthouse unit in the same building, with a $25,000 buffer (the unit owner is more cautious about structural assessments, given the building's age):

• Share of master hurricane deductible: $125,000
• Share + buffer total: $150,000
• Recommended HO-6 loss-assessment limit: $155,000 (rounded up from $150,500)
• If the unit currently carries $25,000 of loss-assessment coverage: current gap = $130,000, verdict Severely underinsured

The same building, the same statute, the same master policy — but the penthouse owner's HO-6 coverage need is roughly four times the 1%-share owner's. This is the scaling fact the post-2022 Florida market has been pricing into renewal quotes.

What the calculator does not do

This is a sizing tool, not a coverage-binding instrument. It does not:

• Quote HO-6 premium. Premium impacts of raising the loss-assessment limit are carrier-specific, OIR-rate-filing-specific, and underwriting-specific. Get a quote from a Florida-licensed 2-20 agent at your renewal.
• Validate the master-policy declarations. It assumes the insured value and hurricane deductible percentage you enter reflect the actual master policy. Pull those from the certificate of insurance the association is required to provide under F.S. § 718.111(12).
• Predict the actual special assessment. The buffer is a planning estimate. The actual non-hurricane assessment depends on board action, statute, and the loss event. Use the buffer as a coverage cushion, not a forecast.
• Address master-policy gaps in coverage. If the master policy itself is underinsured (Coverage A below replacement cost), HO-6 loss-assessment coverage will not close that gap — there is a separate Coverage A insufficiency that creates direct property exposure not addressed here.
• Apply to single-family homes in HOAs. Single-family homes in HOAs are typically not covered by a master policy; each owner carries a full homeowner's policy and the loss-assessment mechanism does not apply in the same way. This calculator is condominium-specific.
• Account for personal umbrella loss-assessment endorsements. Some Florida umbrella policies include loss-assessment coverage above the HO-6 limit. Treat this calculator's recommendation as the HO-6-only target; consult your agent on stacking if you have an umbrella in place.

How this page is maintained

The statutory anchors (F.S. § 718.111(11), § 627.0625, § 718.116) have not moved materially in the last several legislative sessions. The market reality — typical master-policy hurricane deductibles, typical HO-6 loss-assessment limits, post-Surfside structural-assessment frequency — has been moving substantially. We monitor those against Florida OIR HO-6 rate filings, Citizens Property Insurance guidance, and observed claims experience on the post-Ian and post-2024-season cohorts. Typical ranges are refreshed at least annually, and after each major Florida hurricane season.

Last reviewed: 2026-05-15 against F.S. § 718.111(11), § 627.0625, § 718.116 and current Florida OIR HO-6 rate filings.