Basic vs. Broad vs. Special Form Commercial Property Insurance: What Changes at Claim Time

Two quotes both say commercial property insurance. The causes-of-loss form attached to each one decides which question an adjuster starts with — and that is a bigger difference than the premium.

Two quotes land on the same desk. Both say commercial property insurance. Both show a building limit, a contents limit, and a deductible. One is meaningfully cheaper.

Somewhere in each of them, usually on the forms schedule rather than anywhere prominent, is a causes-of-loss form. That form decides which question an adjuster starts with after a loss, and it is a larger difference between the two quotes than the price is.

Under a named-cause structure, the first question is whether the cause of the damage appears among the causes the form identifies. Under a Special or open-cause structure, the starting point is broader — direct physical loss unless the form excludes or limits it — and the work moves immediately to the exclusions, the limitations, the covered-property definition, the endorsements, and the facts.

Two things need saying before anything else. Special Form is not literal all-loss coverage, and anyone who tells you otherwise is selling something. And commercial forms in Texas are not standardized — the Texas Department of Insurance says so directly — so approved forms differ between insurers and no article can tell you what yours says.

What follows is a structural comparison, three scenarios that show the sequence of the analysis, and a locator for finding the form on your own policy.

The short answer — what Basic, Broad, and Special Form mean

These are the names commonly given to causes-of-loss forms. They are not three complete policies, and buying one does not describe your coverage any more than a chapter title describes a book.

• Basic and Broad generally identify the causes of loss that are covered. Broad is not simply “Basic plus everything else” — it is its own form with its own content, and the relationship between the two is set by the forms themselves.
• Special generally begins from direct physical loss unless the form excludes or limits it. The starting point is wider; the analysis is not shorter.

Special does not mean every loss. It shifts where the analysis starts, not whether exclusions, limitations, endorsements, and covered-property definitions apply. They all still do.

Texas insurers may use different approved forms and different endorsements. General educational material from other states’ regulators — including the Florida and Maine consumer guides cited at the foot of this page — can explain the general structure. It cannot tell you what a Texas policy says, and this article does not use it that way.

Named causes versus an open-cause structure

Basic and Broad — look for a stated covered cause

The analysis starts on a list. If the cause of the damage is identified by the form, you move on to the next questions; if it is not, that is where the conversation about this form ends and a different conversation begins.

No list of causes appears on this page. That is deliberate. The causes differ between forms and editions, a list that looks universal would be wrong for some Texas policies, and being wrong about this specific thing is expensive. Open your form and read the ones it names.

What the list does not do is finish the job. A cause appearing on it is the beginning of the analysis, not the end of it.

Special — start broad, then read the exclusions and limitations

The open-cause structure inverts the first step: rather than searching for the cause among those named, you begin from direct physical loss and then work through what the form excludes or limits.

Be careful with the shorthand. “Open perils” describes a starting point. It does not mean the policy covers every risk, and it does not mean that questions about who has to demonstrate what resolve identically in every dispute. The practical consequence of choosing Special is that the exclusions, the property limitations, and the endorsement schedule become the documents that matter most — so those are the ones to read before you buy it, not after.

Side-by-side comparison

Question	Basic	Broad	Special	Document to verify
How the covered-cause analysis starts	Named or stated cause	Named or stated cause	Direct physical loss, subject to exclusions and limitations	Causes-of-loss form
Is the form a complete policy?	No	No	No	Declarations and forms list
Are exclusions still relevant?	Yes	Yes	Yes	Form plus endorsements
Can endorsements narrow or expand the result?	Yes	Yes	Yes	Endorsement schedule
Does the label decide valuation, coinsurance, deductible, vacancy, or flood?	No	No	No	Separate forms and entries

Read the bottom row twice. It is the row that most often surprises people: the causes-of-loss form answers one question, and four or five other provisions answer the questions owners assume it covers.

Three claim-time scenarios

Every scenario runs the same five steps, in the same order:

1. Is the damaged item covered property under this policy?
2. What caused the direct physical damage?
3. How does the attached causes-of-loss form begin the analysis?
4. What exclusions, limitations, or endorsements could change it?
5. What valuation, limit, coinsurance, and deductible apply?

None of the three ends in a verdict, because a verdict requires the actual form and the actual facts. What they show is the shape of the reasoning.

A cause that the named-cause form identifies

The form names the cause. Step 3 is satisfied — and four steps remain.

Is the damaged item covered property, or is it in a category the policy treats separately? Does an exclusion or a limitation reach it anyway? Does an endorsement modify the result? And then the arithmetic: what is the valuation basis, is there a coinsurance requirement and was it met, what is the limit, and which deductible applies to this cause?

Finding the cause on the list moved you one step. It did not finish anything.

A cause the named-cause form does not identify

Here the two structures separate. Under the named-cause form, the analysis has reached its boundary. Under a Special Form, step 3 begins differently — the loss is not screened out for failing to appear on a list.

But “not excluded at step 3” is not “covered.” Steps 4 and 5 still run in full, and a loss can fail at either. Do not read this scenario as saying Special Form pays; read it as saying the two forms ask different first questions and therefore reach step 4 at different rates.

A loss that raises a separate policy question

Flood is the cleanest example, because the boundary is well established: flood is generally addressed by a separate policy rather than by the commercial property policy, and Special Form does not fold it into the base coverage. If flood is an exposure for your premises, it is a purchase decision on the flood insurance page, not a form-selection decision here.

Wind and hail sit differently again — inside the property policy for most Texas commercial risks, but with their own deductible structure that is neither Basic, Broad, nor Special. That arithmetic, and where TWIA territory actually starts, is in the deductible article.

Exclusions and endorsements can matter more than the label

The document hierarchy, in the order it is worth reading:

1. Declarations — limits, premises, valuation, deductibles.
2. Coverage form — what property is covered and how.
3. Causes-of-loss form — the subject of this article.
4. Endorsement schedule — what has been narrowed or expanded.
5. Schedules — locations, buildings, equipment.

Categories worth specifically checking on your own document, once you have the form in front of you: water and flood treatment, wear and maintenance, ordinance or law, equipment breakdown, roof limitations, vacancy conditions, and protective-safeguard requirements. Each of those is capable of mattering more to a particular business than the choice between Broad and Special.

Two of them have their own consequences elsewhere. A vacancy condition can overlay any of the three forms once a building’s occupancy changes — see vacant vs. unoccupied commercial property. And if the property is packaged inside a business owner’s policy, a causes-of-loss structure still applies; the packaging is a separate question.

What the causes-of-loss form does not decide

Question	Where it is actually decided
Valuation basis — replacement cost, actual cash value, or other	The valuation entry on the policy
Coinsurance and insurance-to-value	The coinsurance provision
Deductibles, including percentage wind and hail	The deductible schedule
Building and business personal property limits	The declarations and schedules
Vacancy conditions	The vacancy provision
Lost income after a covered loss	Business interruption coverage
Flood	A separate flood policy
Package eligibility	The BOP page

An owner who upgrades to Special Form and changes nothing else has changed one of these eight things.

Where to find the form on a policy or quote

On the declarations page and the forms and endorsements schedule. You are looking for three things together: the form number, the title, and the edition date. The edition matters — the same form number in two editions can differ.

Then compare the expiring policy against the renewal or the competing quote, and look specifically for forms added, removed, or changed edition. That comparison is where a cheaper renewal usually explains itself.

Ask for the complete forms. A proposal summary, a marketing sheet, or a certificate is not the document a claim will be decided under.

A renewal comparison worksheet

Field	Current	Proposed
Causes-of-loss form number, title, edition
Structure — Basic, Broad, Special, or other
Material exclusions and limitations
Endorsements added
Endorsements removed
Covered property definitions and locations
Vacancy, protective safeguards, roof, water
Valuation basis
Coinsurance percentage
Deductibles, by cause
Reviewed by, and date

The worksheet flags questions. It does not declare two policies equivalent, and filling it in does not establish that anything is covered.

Questions to ask before choosing a form

• Which causes-of-loss form and edition is attached?
• Which endorsements narrow or expand it?
• Which causes matter most for this occupancy and this location?
• Are roof, water, flood, equipment, vacancy, and ordinance or law treated separately?
• Are the building and the contents on the same form and the same valuation basis?
• What changed from the expiring policy?

This article does not tell you to buy Special Form. Availability, price, exclusions, and the actual facts of your business all bear on it, and the right answer for a warehouse is not automatically the right answer for a restaurant. What it does tell you is that comparing two commercial property quotes on premium and limits alone compares the two least informative numbers on the page.

The coverage itself, and how a Texas commercial property policy gets placed, is on our commercial property insurance page. Bring both forms lists to that conversation and it becomes a much shorter one.

Common questions

What is the difference between Basic, Broad, and Special Form commercial property insurance?

They are causes-of-loss forms, not three complete policies. Basic and Broad generally identify the causes of loss that are covered, so the analysis starts by looking for the cause on a list. Special generally starts from direct physical loss unless the form excludes or limits it, so the analysis starts with the exclusions instead. The actual form, edition, and endorsements decide the result.

What is the difference between named perils and open perils?

It describes where the analysis begins. Under a named-cause structure you look for the cause among those the form states. Under an open-cause structure the starting point is broader and the work moves to exclusions, limitations, and endorsements. Neither phrase settles whether a particular loss is covered.

Does Special Form commercial property insurance cover every loss?

No, and this is the most expensive misunderstanding in commercial property. Special Form is not all-loss coverage. It begins from a broader starting point and then runs through exclusions, limitations, covered-property definitions, endorsements, and the facts. Flood, wear and tear, and a long list of other matters are commonly addressed separately.

What exclusions can still apply to Special Form?

That is form-specific, which is why no list appears here. Categories worth checking on your own document include water and flood, wear and maintenance, ordinance or law, equipment breakdown, roof limitations, vacancy conditions, and protective-safeguard requirements. Read the form and the endorsement schedule together — an endorsement can change any of them.

Where can I find the causes-of-loss form on my policy?

On the declarations page and the forms and endorsements schedule. Look for the form number, title, and edition date. If you only have a proposal or a summary, ask for the complete forms — a summary is not the document a claim is decided under.

Can endorsements change a Basic, Broad, or Special Form?

Yes, in both directions, and that is the reason the label alone tells you less than people assume. An endorsement can narrow a Special Form or expand a Basic one. Comparing two quotes on the form name without comparing the endorsement schedules is comparing the covers of two different books.

Sources: TDI — Commercial insurance; TDI — Commercial property insurance; Florida CFO — Commercial property insurance; Maine Bureau of Insurance — Commercial property insurance. Verified 24 August 2026.

General information about Texas filing rules, not legal advice and not a quote. Requirements change; confirm your own through the Texas DPS License Eligibility system before acting. Published 24 August 2026.