The three gaps, in NAIC's own words. The regulators' description is compact enough to quote in full, because each clause is a distinct exposure. "Most individual policies limit coverage for business property losses or damages to $2,500 in the home and $250 away from home. These policies tend to exclude business-related liability claims from persons injured on your property, and provide no protection to sustain the business during downtime associated with a property loss."
Note the leading qualifier: most individual policies, not all. Those sublimits are figures from standard policy forms rather than anything set by law, they are not adjusted annually, and they will drift as forms are revised. They are quoted here as NAIC published them and should be checked against the actual policy rather than assumed. What does not drift is the shape of the problem, so take each gap in turn.
The property gap is a sublimit, not an exclusion, which makes it easy to miss. A homeowners policy does insure business property; it simply insures very little of it. A consultant with two laptops, a monitor, a printer and a camera has already exceeded a $2,500 sublimit, and a photographer or a tradesman running a home operation is far past it. The away-from-home figure is the sharper one: equipment taken to a client site, to a market stall, or left in a vehicle is subject to a much smaller cap than the same equipment sitting in the spare room. A business that travels with its tools is where this gap does the most damage.
The liability gap is the one with no ceiling on the loss. NAIC's phrasing is that personal policies "tend to exclude business-related liability claims from persons injured on your property." The scenario is ordinary rather than exotic: a client visiting for a consultation, a courier delivering stock, a contractor collecting materials. Each is on the property for a business reason, and a personal liability section that excludes business-related claims does not respond. Unlike the property sublimit, this exposure is not capped by the value of anything the business owns.
NAIC also notes a second and related absence: "professional liability insurance is not included in standard homeowners' or renters' insurance policies", so a home-based business that gives advice or performs professional work has that gap as well, and it is a separate contract again rather than something an endorsement to the homeowners policy reaches.
The income gap. Personal policies "provide no protection to sustain the business during downtime associated with a property loss." A kitchen fire that makes a house uninhabitable is covered by the homeowners policy for the house and for the family's temporary accommodation, and covers nothing at all for the six weeks the business cannot trade. This is the gap least often identified in advance, because the loss that triggers it looks like a household loss.
The two routes to closing it, and when each fits. NAIC gives both. For a small operation: "check with your agent to see if your business qualifies for a homeowners' policy endorsement that modifies the standard policy to meet your specific needs." SBA describes the same route as coverage "added to homeowner's insurance as a rider". The word "qualifies" is doing real work there, because eligibility for such an endorsement depends on what the business does, how many people visit, whether inventory is stored and whether anyone is employed.
As the business grows, NAIC's own sequencing is that "a home-based business or a company with only a few employees may start out with a BOP and then expand coverage as the company grows", and its remedy for the three gaps is "the purchase of a business owners policy or general liability, business property and business interruption/continuation insurance." So the progression is an endorsement while the operation is small, then a packaged business policy, then separately purchased coverages as the business outgrows the package's eligibility.
The threshold question a lot of people get wrong: when does this apply at all? NAIC's answer is wider than most people expect, and it reaches activity that does not feel like a business: "For insurance purposes, once you begin earning income from renting out personal property, you're probably considered a home-based business." Renting out a room, a garage, tools or equipment puts someone in this territory for insurance purposes whether or not they think of themselves as running a business, and NAIC's adjacent advice is to make sure "auto and homeowners' insurance policies provide the protection you need" before sharing a vehicle or a residence.
Two coverages that sit outside all of this and are frequently the larger exposure. The first is vehicles. NAIC advises that "if your business involves transporting people for any reason, you should consider commercial auto insurance to take advantage of higher liability limits and special provisions", and a home-based business is not exempt from the ordinary rule that a personal auto policy may not respond to business use.
The second is the owner's own earning capacity, which for a one-person home-based business is the business's only real asset. NAIC's practical note is about the waiting period rather than the amount: "Home-based business owners interested in disability insurance may want to negotiate for a shorter payout waiting period after the onset of disability. Note that a shorter waiting period will likely result in a higher premium." The reason a shorter wait matters more here than for an employee is that there is no employer sick pay and no colleague to keep the business running in the interval.
