A condo association insures the building under one master policy, and its governing documents let it divide costs that policy doesn’t pay among the owners. That bill is a special assessment. It shows up when the master policy deductible is large, when a loss exceeds the master policy limit, or when a claim against the association is bigger than its liability coverage. Loss assessment coverage on your HO-6 pays your share of that assessment, as long as the damaged common property is the type your policy would cover and the cause is a peril it insures. The built-in limit on the standard ISO form is $1,000. An endorsement raises it, and the fine print on that endorsement, especially how it treats assessments for the master deductible, is where policies really differ.
What a loss assessment is
IRMI defines a loss assessment as a property owner’s share of a loss to property owned in common by all members of a property owners association. When the master policy doesn’t pay all of a loss, the association bills owners for the rest under its governing rules. Three things produce that bill:
- The master policy deductible. Depending on the documents and state law, it is spread across all owners or charged to the owner of the unit where the damage started.
- Damage above the master policy limit. Washington’s insurance regulator gives the example of wind damage to several roofs exceeding those limits.
- Liability claims against the association. Bodily injury or property damage, or an act of an elected, unpaid board member.
What doesn’t qualify: assessments for maintenance, upgrades or reserves. The ISO form requires direct loss to collectively owned property from an insured peril, so a roof replaced because it is old isn’t covered, and assessments charged by a governmental body are excluded outright.
What the standard HO-6 builds in
The ISO unit-owners form, HO 00 06 (10 00 edition), carries loss assessment in both halves of the policy. On the property side it pays up to $1,000 for your share of an assessment charged against you by the association, when the assessment results from direct loss to property owned by all members collectively, of a type your policy would cover if you owned it, caused by a peril insured against under Coverage A. Earthquake, and land shock waves or tremors from a volcanic eruption, are carved out. The $1,000 is the most for any one loss regardless of how many assessments are made, with one deductible per unit.
On the liability side it pays up to $1,000 for an assessment resulting from bodily injury or property damage not excluded under Section II, or from an act of an elected, unpaid director, officer or trustee. Governmental assessments are excluded in both places.
Company forms can be narrower. Shelter’s HO-6 (01-07 edition), posted by the Oklahoma Insurance Department, says its loss assessment coverage does not apply to any assessment resulting from a deductible or other retained limit on the master policy. If the deductible is your worry, that sentence matters more than the limit.
Raising the limit: HO 04 35 and the deductible special limit
Higher limits come from ISO endorsement HO 04 35. It raises both loss assessment limits for your unit and can add other locations, such as a second condo. The fine print in the 04 91 edition is a special limit: the insurer will not pay more than $1,000 of an assessment that results from a deductible in the association’s policy.
ISO’s 05 11 edition removed that special limit, so under that edition the full scheduled limit applies to a deductible assessment. But insurers file their own versions: Auto Club Family Insurance’s CO 04 35 07 11, listed as its current edition in its Arkansas forms index, still carries the $1,000 special limit word for word. Ask how much of your limit applies to the master deductible.
Earthquake stays excluded under the base form and HO 04 35. ISO’s HO 04 36, Loss Assessment Coverage for Earthquake, is the separate endorsement. Its 04 91 edition treats shocks within a 72-hour period as one earthquake, carries its own deductible, and still excludes governmental assessments and flood or tidal wave.
How the master policy type changes the picture
Governing documents decide how much of your unit the master policy insures. IRMI describes three approaches:
- Bare walls. The master policy insures the bare structure, common fixtures and shared property. You insure items in your unit such as built-in cabinets, appliances and flooring, plus improvements.
- Single entity. The master policy covers virtually all real property including fixtures inside units, but not owner improvements. You insure personal property and upgrades.
- All inclusive. The master policy covers all real property including owner improvements; you insure personal property.
Whatever the type, Washington’s regulator says unit owners are responsible for the master policy deductible, under all-in and bare walls arrangements alike.
How the deductible reaches you varies by state. In Maryland, when damage originates in a unit, that unit’s owner is responsible for the association’s property deductible up to $10,000, the excess is a common expense, and the association must tell every owner in writing each year about the deductible and their responsibility for it. Florida requires unit-owner policies issued or renewed on or after July 1, 2010 to include at least $2,000 of property loss assessment coverage, with a deductible of no more than $250 per direct property loss. Elsewhere, the declaration and bylaws control.
What to get from the association
- The master policy certificate of insurance. It states the limits and the deductible. Washington’s regulator notes owners get one at each renewal; Maryland requires the insurer to issue one to any unit owner who asks.
- The declaration and bylaws. Which master policy approach applies and how the deductible is allocated.
- Any written deductible notice. Where required, it gives the deductible figure behind what you could be billed.
Then I size it this way: the limit should at least cover the share of the master deductible you could be billed, and the endorsement should apply that limit to deductible assessments without a special limit. My condo insurance page covers the rest of the HO-6, this California comparison shows how a loss splits between the two policies, and if you sit on the board, the association’s own policy is where the deductible gets decided.
Common questions
Does loss assessment coverage pay the master policy deductible?
It depends on the form. The ISO HO-6 doesn’t treat a deductible assessment differently within its $1,000 limit, but the 04 91 edition of HO 04 35 caps deductible assessments at $1,000 even with a higher limit, some company endorsements still do, and some company forms exclude deductible assessments entirely. Read the endorsement before you count on it.
Does it cover a special assessment for maintenance or improvements?
No. The assessment has to result from direct loss to collectively owned property caused by an insured peril. Assessments for maintenance, upgrades or reserves fall outside that, and assessments charged by a governmental body are excluded.
What about earthquake assessments?
The base HO-6 and HO 04 35 both exclude earthquake. ISO’s HO 04 36, Loss Assessment Coverage for Earthquake, is the separate endorsement for that, and its 04 91 edition still excludes governmental assessments and flood or tidal wave.
What if the association is sued for more than its liability policy?
The ISO HO-6 includes $1,000 for assessments resulting from bodily injury or property damage not otherwise excluded, and for acts of an elected director, officer or trustee who serves without income. HO 04 35 raises that limit along with the property side.
How do I pick a limit?
Start from the master policy deductible on the association’s certificate of insurance and any written notice of what you can be billed, then confirm the endorsement applies its full limit to deductible assessments. Requirements vary by state; Florida, for example, requires at least $2,000 of property loss assessment coverage on unit-owner policies.
Sources
- ISO HO 00 06 10 00, Homeowners 6 Unit-Owners Form (Hartford filing copy, Nevada Division of Insurance)
- ISO HO 04 35 04 91, Loss Assessment Coverage endorsement (Auto Club of Missouri form library; edition marked obsolete there)
- Auto Club Family Insurance CO 04 35 07 11, Loss Assessment Coverage (company edition based on ISO form)
- Auto Club Arkansas homeowners forms index (edition dates in use)
- ISO HO 04 36 04 91, Loss Assessment Coverage for Earthquake (Auto Club of Missouri form library)
- Big “I” Virtual University (David Thompson, 2018): Loss Assessment Coverage
- FC&S / PropertyCasualty360 (Oct. 11, 2021): Understanding loss assessment coverage
- IRMI glossary: loss assessment coverage
- IRMI glossary: bare walls coverage
- IRMI glossary: single entity coverage
- IRMI glossary: all inclusive coverage
- Washington State Office of the Insurance Commissioner: Learn how condo insurance works
- Maryland Code, Real Property § 11-114 (Maryland General Assembly, current text)
- Florida Statutes § 627.714 (2025): residential condominium unit owner coverage
- Shelter Insurance HO-6 (01-07) condominium unit-owners form (Oklahoma Insurance Department copy)
General information about loss assessment coverage on condo unit-owner (HO-6) policies as of October 2026, not legal or tax advice; your policy form, its endorsements and your association’s governing documents control, and state law varies. Coverage depends on underwriting and the terms, conditions and exclusions of the policy actually issued.