The standard homeowners policy in the United States is known as the HO-3, a form originally developed by the Insurance Services Office and adapted by most major carriers. Mortgage lenders require it, yet most owners only glance at the premium and deductible. The policy is built from six lettered coverage parts, and knowing what each one does helps you avoid an unpleasant surprise after a loss.
Coverage A: Dwelling
Coverage A pays to repair or rebuild the structure of your house, including attached structures such as a garage or deck. On an HO-3, the dwelling is usually covered on an “open perils” basis, meaning any cause of loss is covered unless the policy specifically excludes it.
The most important number on your policy is the Coverage A limit. It should reflect the cost to rebuild your home at today’s labor and material prices, not the market value or the price you paid. Market value includes land, which does not burn down, while rebuild cost reflects contractors, permits, and debris removal. In a high-cost-of-land area, the rebuild cost may be far below the sale price; in a rural area with expensive construction, it can be higher.
Replacement cost versus actual cash value
Replacement cost coverage pays to rebuild with materials of like kind and quality without subtracting for depreciation. Actual cash value pays replacement cost minus depreciation, which can leave a large gap on an older roof or aging siding. Some insurers now apply actual cash value schedules to roofs above a certain age, especially in hail and hurricane regions, so read the roof endorsement carefully.
Many insurers also offer extended replacement cost, which adds a buffer, often 25 percent to 50 percent above Coverage A, if rebuilding costs surge after a regional disaster.
Coverage B: Other structures
Coverage B protects detached structures such as a fence, shed, detached garage, or guest house. It is usually set at 10 percent of the dwelling limit by default. If you have a large detached workshop or pool house, ask whether that default is enough.
Coverage C: Personal property
Coverage C pays for your belongings: furniture, clothing, electronics, appliances, and similar items. The default limit is commonly 50 percent to 70 percent of Coverage A. Unlike the dwelling, personal property on an HO-3 is generally covered only for named perils such as fire, windstorm, theft, and vandalism.
Policies apply special sub-limits to categories that are easy to lose or steal. Jewelry, watches, furs, firearms, cash, and collectibles often have caps in the low thousands of dollars. If you own an engagement ring or a valuable collection, a scheduled personal property endorsement or a separate floater can cover the full appraised value, often with no deductible and broader causes of loss.
Keep a home inventory. A video walk-through stored in the cloud, plus receipts for big purchases, can shorten the claim process considerably.
Coverage D: Loss of use
If a covered loss makes your home unlivable, Coverage D pays additional living expenses: hotel or rental costs, extra food costs above your normal budget, and sometimes added mileage. Limits are frequently a percentage of Coverage A or a fixed time period. Save every receipt, because the insurer reimburses the increase over your normal expenses, not your entire budget.
Coverage E: Personal liability
Coverage E protects you if someone is injured on your property or you accidentally damage someone else’s property, and it covers legal defense costs. A guest who slips on icy steps or a child who is hurt on your trampoline are classic examples. Standard limits start around $100,000, and raising them to $300,000 or $500,000 is usually inexpensive. Dog bite liability is a significant source of claims nationally, and some carriers restrict coverage for specific breeds, so disclose pets honestly.
Coverage F: Medical payments to others
Coverage F pays small medical bills for guests injured on your property regardless of fault, typically in the range of $1,000 to $5,000. It is designed to settle minor injuries quickly, without a lawsuit. It does not cover you or members of your household.
The exclusions that surprise homeowners
Standard HO-3 policies exclude several major perils:
- Flood. Rising water from storms, overflowing rivers, or storm surge is excluded. Flood coverage is sold separately through FEMA’s National Flood Insurance Program or private flood insurers. NFIP policies usually have a 30-day waiting period.
- Earthquake and earth movement. Earthquake coverage requires an endorsement or separate policy. In California, the California Earthquake Authority is a major provider.
- Maintenance issues. Gradual leaks, mold from long-term moisture, wear and tear, and pest damage are generally excluded. Sudden and accidental water damage, such as a burst pipe, is usually covered.
- Sewer backup. Water backing up through drains is excluded unless you add a water backup endorsement.
- Ordinance or law. When an older home is rebuilt, local codes may require upgrades. Ordinance or law coverage pays for those upgrades, and the base amount is often small.
Deductibles, including percentage deductibles
Most policies use a flat deductible such as $1,000 or $2,500. In coastal and tornado-prone states, insurers often apply a separate wind, hail, or named-storm deductible expressed as a percentage of Coverage A. A 2 percent deductible on a $400,000 dwelling means you pay the first $8,000 of a covered wind loss. Check how your state defines when a hurricane deductible applies, because rules vary across Florida, Texas, the Carolinas, and the Northeast.
How to review your policy in under an hour
- Get a rebuild estimate from your agent or a contractor and compare it with Coverage A.
- Confirm that both dwelling and contents are on a replacement cost basis.
- List valuables that exceed sub-limits and price a schedule.
- Raise liability limits if you have meaningful assets.
- Decide whether flood, earthquake, or water backup coverage makes sense for your location.
- Note every deductible, including wind or hurricane percentages.
How insurers are changing homeowners coverage
The homeowners market in several states has tightened in recent years. Insurers facing larger losses from wildfire, hurricanes, hail, and severe convective storms have raised rates, narrowed eligibility, and in some areas stopped writing new policies. California and Florida have seen particularly visible changes, and homeowners in those states increasingly rely on state-created insurers of last resort, such as the California FAIR Plan and Citizens Property Insurance Corporation in Florida. These programs provide basic coverage but may require you to buy supplemental policies for liability or broader protection.
If your insurer issues a non-renewal notice, state law usually requires advance written notice, commonly 30 to 120 days depending on the state. Use that time to contact an independent agent who can shop multiple carriers, and ask whether home-hardening steps such as a new roof, impact-rated windows, or defensible space clearing could qualify you for better options or discounts.
Discounts worth asking about
Bundling home and auto, installing monitored security and fire alarms, adding water leak sensors, choosing a higher deductible, and staying claims-free can all lower premiums. Some coastal states require insurers to offer discounts for wind mitigation features verified by an inspection.
Related reading: How State Minimum Auto Insurance Requirements Actually Work in the US.
Frequently Asked Questions
Is an HO-3 the same as an HO-5?
No. An HO-5 typically covers personal property on an open-perils basis as well, rather than named perils only, and it may have higher sub-limits. It costs more and is not offered by every insurer.
Does my mortgage lender decide my coverage amount?
Lenders require enough coverage to protect their loan, but their minimum may be lower than your full rebuild cost. Setting the limit high enough to rebuild is your responsibility.
Will filing a small claim raise my premium?
It can. Insurers share claim history through databases such as the CLUE report, and frequent small claims may lead to surcharges or non-renewal. Many owners pay minor losses out of pocket for that reason.
This article is for general informational purposes only and is not legal, medical, tax, or financial advice. Rules vary by state and change over time; confirm details with the relevant agency or a licensed professional.
