Hired and non-owned auto (HNOA) coverage: what it covers and who needs it

Hired and non-owned auto coverage, usually shortened to HNOA, is liability insurance for the business when it is responsible for an accident in a vehicle it does not own: a rental car, a borrowed van, or an employee's personal car on a work errand. It pays for injury and property damage to other people, plus defense, but it does not pay to repair the rented or borrowed vehicle, and it usually sits behind the vehicle owner's own insurance. If your company has no vehicles and you still send people out the door in cars, this is the coverage that closes the gap your general liability policy leaves open.

Why general liability does not answer

The standard ISO commercial general liability form excludes bodily injury and property damage arising out of the ownership, maintenance, use or entrustment of any auto "owned or operated by or rented or loaned to any insured." A rental car is rented to you, so it is excluded. A car an employee drives for you is "operated by" an insured, so it is excluded too. See CGL exclusions: what a general liability policy does not cover for how the aircraft, auto and watercraft exclusion works. The insurance industry's answer is a separate auto coverage for those vehicles, which is HNOA.

The two definitions that matter

The definitions come from the ISO forms. In the businessowners endorsement BP 04 04 01 10, Hired Auto and Non-Owned Auto Liability, they read as follows:

• Hired auto: any auto you lease, hire, rent or borrow. It does not include an auto you lease, hire, rent or borrow from your employees, your partners or your executive officers, or members of their households.
• Non-owned auto: any auto you do not own, lease, hire, rent or borrow that is used in connection with your business. It includes autos owned by your employees, partners or executive officers, or members of their households, but only while used in your business or your personal affairs.

The ISO Business Auto Coverage Form CA 00 01 follows the same pattern through its covered auto symbols: symbol 8 for hired autos, symbol 9 for non-owned autos (see business auto coverage symbols explained: what each number covers). The practical rule is: a vehicle rented from Enterprise is hired; the sales rep's own Camry is non-owned; a vehicle leased from the sales rep is, awkwardly, neither, and gets dealt with by endorsement.

What HNOA pays and what it leaves out

Under BP 04 04 the covered vehicles are "hired autos" being used by you or your employees in the course of your business, and "non-owned autos" being used in your business by any person. Under the business auto form the coverage is tied to the same symbols. In both cases, expect these features:

• Liability only. It pays damages for bodily injury and property damage you are legally liable for, with defense costs. It is not collision or comprehensive coverage on the vehicle.
• Excess over other insurance. BP 04 04 states that the insurance is excess over any primary insurance covering the hired or non-owned auto. The business auto form likewise provides primary coverage on autos you own and excess coverage on autos you do not own. If an employee drives a personal car, the employee's own auto policy pays first and your HNOA applies only after those limits are used up or if no other coverage responds. The other insurance clause controls the order.
• Employee injuries are excluded. An employee hurt in the course of work goes to workers' compensation insurance: how it works, not auto liability.
• Property you are carrying or renting is excluded. The endorsement excludes property damage to property owned by, transported by, rented to or in the care, custody or control of the insured. A rented van full of your inventory does not make the inventory covered.
• Principals' own cars. The endorsement's "who is an insured" wording says a partner or executive officer is not an insured for an auto that they or their household own. The business is protected, but the principal needs a personal auto policy of their own.
• Auto businesses are carved out. Anyone engaged in selling, repairing, servicing, storing or parking autos is not an insured, other than an auto business you operate.

If you want the business to carry the cost when a rented car is damaged, you need hired auto physical damage. On the business auto form, that is shown as a separate coverage with its own limit and cost of hire, and endorsement CA 99 16, Hired Autos Specified As Covered Autos You Own, can treat a specific hired vehicle as owned for physical damage. Rental companies also bill for loss of use while a car is in the shop, and the standard form's allowance for that is capped, so check what it says. Many rental agreements make you responsible for the car, which is why the rental company's collision damage waiver exists. A mismatch between the rental agreement and your policy is a common claims surprise.

Where HNOA lives

You can buy it three ways:

1. On a business auto policy with symbols 8 and 9 added to liability. This is the usual route when you also own vehicles.
2. As an endorsement to a business owner's policy. ISO's BP 04 04 (and carrier equivalents) adds hired auto and non-owned auto liability to a BOP, each with its own premium charge.
3. As a standalone policy. Some carriers write HNOA by itself for businesses with no owned vehicles.

What drives the price

Pricing is driven by exposure, not by a vehicle schedule. In the Commonwealth Automobile Reinsurers' commercial auto manual (revised March 1, 2026), non-ownership liability is priced from the insured's total number of employees, in bands, and hired autos from the cost of hire per $100. Cost of hire excludes charges for services by licensed motor carriers, and a hired auto the insured insures on a primary basis for six months or more is rated as if owned (Commonwealth Automobile Reinsurers manual, rules 27 and 28). CAR is the residual-market bureau, so your carrier's own rates and rules will differ, but the rating bases, headcount for non-owned and rental spend for hired, are standard. Delivery work, long-distance travel, a high share of staff driving their own cars and frequent rentals of large trucks all move the price.

Where HNOA stops

• Delivery. Employees or contractors who deliver pizzas, packages or catering orders in personal cars create a much bigger non-owned exposure. Many carriers exclude or separately rate delivery operations, and independent contractors may fall outside coverage entirely. See insurance for delivery businesses and gig drivers.
• Regular-use vehicles. If an employee uses a personal vehicle every day for business, or you lease a vehicle for months, the vehicle behaves like an owned auto. The 11 20 edition of CA 00 01 treats a vehicle leased without a driver for at least six continuous months, under an agreement requiring you to carry primary insurance, as an owned auto (Big "I" summary).
• Heavy trucks. Some carriers restrict rented box trucks and tractors, so ask before the first rental, not after.
• Drivers with bad records. HNOA does not take the place of a driver policy. See Driver selection, MVRs and your commercial auto premium and employees driving their own cars for work: who is liable?.
• Limits. A $1 million HNOA limit is common, but a serious injury can exceed it. Ask whether your umbrella follows form over it.

A hypothetical worked example

Say a 15-person marketing agency in Illinois owns no vehicles. An account manager drives her own sedan to a client meeting and rear-ends a pickup, injuring the driver, who sues the agency and the employee. The employee's personal auto carrier looks at her policy's business-use wording and may defend and pay up to her limits. The agency's HNOA is excess over that. If the personal carrier denies, the agency's coverage becomes the main response for the agency, and possibly for the employee as an insured while the car was used in the business.

Change one fact: the account manager rented a minivan for the trip and bought no collision waiver. HNOA pays the injured driver, but the damage to the minivan lands on the agency unless it bought hired auto physical damage. Both situations are routine, which is why the Marketing agency insurance and other office-based industries are told to carry this coverage even when they own nothing with wheels.

Questions to answer before you buy

• How many employees drive for business, and how often?
• Do any of them use personal cars daily, or get a car allowance?
• Do you rent vehicles, and how much do you spend per year? Which types?
• Do you deliver goods or people, or use gig or contract drivers?
• Do your contracts require HNOA or a specific limit? Use the contract insurance requirements checker.
• Does your state require anything additional for rentals or business vehicles? Check workers' comp and benefits requirements by state.

Key takeaways

• HNOA is liability-only coverage for vehicles you rent, borrow or do not own but use in the business. General liability excludes them.
• It is generally excess over the vehicle owner's own insurance, so an employee's personal auto policy pays first.
• Physical damage to a rental is a separate coverage. Do not assume HNOA repairs the car.
• It can be bought on a business auto policy, as a BOP endorsement or as a standalone policy, priced on rental spend and headcount.
• Delivery drivers, regular-use vehicles and heavy trucks are the usual places where HNOA stops responding.