HO-3 vs HO-5 vs HO-8 Policy Types Explained

Understanding Policy Forms

The Insurance Services Office (ISO) creates standardized policy forms that most homeowners insurers use as the foundation for their products. While individual insurers may modify the language, add proprietary endorsements, or adjust coverage terms, the core structure of each form remains consistent across the industry. The form number tells you the fundamental framework of your coverage.

The most important distinction between forms is how they handle perils: open perils (also called all-risk or special form) versus named perils. Open-perils coverage protects against any cause of loss not specifically excluded in the policy. Named-perils coverage only protects against the specific causes listed in the policy. Open perils is always broader and more protective because the burden of proving an exclusion falls on the insurer rather than on you to prove a listed peril caused your loss.

HO-3: The Special Form (Most Common)

The HO-3 is carried by approximately 80% of American homeowners, making it by far the most widely issued policy form. It uses a split approach to perils coverage that balances broad protection for your home's structure with more limited protection for your belongings.

Dwelling coverage (open perils). Your home's structure, including walls, roof, foundation, built-in fixtures, and attached structures like an attached garage, is covered against any cause of loss unless the policy specifically excludes it. The standard exclusions include flood, earthquake, war, nuclear hazard, government action, intentional damage, neglect, mold (in most policies), and normal wear and tear. Everything else is covered.

Personal property (named perils). Your belongings are covered only against the 16 named perils listed in the policy: fire, lightning, windstorm, hail, explosion, riot, aircraft and vehicle damage, smoke, vandalism, theft, volcanic eruption, falling objects, weight of ice/snow/sleet, accidental water discharge, sudden tearing/cracking/bulging of heating or plumbing systems, freezing, and artificially generated electrical current. If your belongings are damaged by a cause not on this list, such as accidental spills, pet damage, or mysterious disappearance, the loss is not covered.

Valuation. Most HO-3 policies offer replacement cost coverage for the dwelling and either replacement cost or actual cash value for personal property, depending on the insurer and premium level. Replacement cost policies pay what it costs to rebuild or replace without deducting for depreciation. Some HO-3 policies default to actual cash value for personal property and offer a replacement cost upgrade for an additional premium.

Best for: Most homeowners. The HO-3 provides strong structural protection at a reasonable premium and is widely available from nearly every insurer.

HO-5: The Comprehensive Form

The HO-5 is the broadest standard homeowners policy available. It extends open-perils coverage to both your dwelling and your personal property, eliminating the named-perils restriction that limits the HO-3's personal property coverage.

Dwelling coverage (open perils). Identical to the HO-3. Your home's structure is covered against all perils except those specifically excluded.

Personal property (open perils). This is the key difference. Under an HO-5, your belongings are also covered against any cause of loss unless specifically excluded. Accidental damage, mysterious disappearance, and other losses that would be denied under an HO-3's named-perils personal property coverage may be covered under an HO-5. If you accidentally knock a television off a shelf or your child spills paint on the carpet, the HO-5 covers these losses while the HO-3 does not, because neither accidental damage nor spillage is one of the 16 named perils.

Valuation. HO-5 policies almost always include replacement cost coverage for both the dwelling and personal property as standard. This means you receive the full cost of replacing damaged items without depreciation deductions, which can make a substantial difference in claim payouts for older belongings.

Cost. The HO-5 typically costs 5% to 15% more than an equivalent HO-3. The premium increase reflects the broader personal property coverage, and for homeowners with significant belongings, the additional cost is often justified by the expanded protection.

Best for: Homeowners with valuable personal property, collectors, families with children (who cause more accidental damage), and anyone who wants the broadest available coverage without needing to add multiple endorsements to an HO-3.

HO-8: The Modified Coverage Form

The HO-8 was created specifically for older homes where the cost to rebuild using original materials and methods far exceeds the home's market value. Victorian homes, historic properties, and architecturally significant houses often fall into this category because they feature materials and craftsmanship that are extraordinarily expensive to replicate, such as hand-carved woodwork, plaster walls, slate roofing, and custom masonry.

Dwelling coverage (named perils). Unlike the HO-3 and HO-5, the HO-8 uses named-perils coverage for the dwelling. This is significantly narrower because only the specific causes listed in the policy are covered, and the list is shorter than the HO-3's personal property named perils. The HO-8 typically covers fire, lightning, windstorm, hail, explosion, riot, aircraft and vehicle damage, smoke, vandalism, and theft, but may exclude some of the lesser perils covered by other forms.

Personal property (named perils). Personal property coverage uses the same named-perils approach as the dwelling, with the same limited peril list.

Valuation. The defining characteristic of the HO-8 is its valuation method. Instead of replacement cost, the HO-8 uses a functional replacement cost or actual cash value approach. Functional replacement cost pays to repair or rebuild using common modern construction materials and methods rather than replicating the original materials. If a fire destroys a room with hand-plastered walls and custom crown molding, the HO-8 pays for drywall and standard trim, not for a master plasterer and a woodcarver. This keeps premiums affordable for owners of high-rebuild-cost homes, but the payout may be significantly less than what is needed to restore the home to its original condition.

Cost. The HO-8 is generally less expensive than an HO-3 for the same home because the coverage is narrower and the valuation method limits payouts. However, the savings come with substantially reduced protection.

Best for: Owners of older or historic homes that cannot obtain an HO-3 because the rebuild cost is too high relative to the market value. The HO-8 is often a last-resort option when standard coverage is unavailable or unaffordable.

Other Policy Forms

While the HO-3, HO-5, and HO-8 are the main forms for owner-occupied single-family homes, several other forms serve different living situations.

HO-1 (Basic Form). The most limited homeowners form, covering only 10 named perils. Rarely issued today and not available in most states.

HO-2 (Broad Form). Covers 16 named perils for both dwelling and personal property. Occasionally offered as a lower-cost alternative to the HO-3, but the named-perils dwelling coverage is a significant downgrade.

HO-4 (Renters Insurance). Covers personal property and liability for tenants who do not own the dwelling. The landlord's policy covers the building structure.

HO-6 (Condo Insurance). Covers the interior of a condominium unit, personal property, and liability. The condo association's master policy covers the building's exterior and common areas.

HO-7 (Mobile/Manufactured Home). Similar to an HO-3 but designed for manufactured and mobile homes, which have different construction characteristics and risk profiles.

Choosing the Right Policy Form

For most homeowners, the choice comes down to HO-3 versus HO-5. The HO-3 is adequate for many households, especially when supplemented with specific endorsements like scheduled personal property for valuables and replacement cost coverage for personal property. The HO-5 is the better choice if you want comprehensive protection without managing multiple endorsements, and the 5% to 15% premium increase is within your budget.

If you own an older home with high rebuild costs, the HO-8 may be your only option from many insurers. Consider shopping with insurers that specialize in older and historic homes, as some offer modified HO-3 policies with agreed-value endorsements that provide better protection than a standard HO-8 while accounting for the unique characteristics of your home.