The short answer
Liability-only motorcycle insurance covers the other party after an at-fault crash, never your own bike. See who it fits, what it costs, and who offers it.
Liability-only motorcycle insurance pays for the damage you do to other people — their injuries, their vehicle — after a crash you cause. It pays nothing toward your own motorcycle and nothing toward your own injuries. It is the legal minimum in nearly every state and the cheapest policy you can buy. That makes it the right call for a low-value bike owned outright, and the wrong call for a financed or higher-value motorcycle, which a lender will not allow on liability-only anyway.
Direct answer: what liability-only covers
Liability-only covers the other party and only the other party. After an at-fault crash, it pays the other person's medical bills up to your bodily-injury limit and repairs or replaces their vehicle up to your property-damage limit. It is what the law requires you to carry so that the people you might injure are not left uncompensated.
What it does not cover is the rider's entire side of the crash. A liability-only policy pays zero toward repairing your motorcycle, zero toward your own medical bills, and zero if your bike is stolen or burns. If you drop the bike with no other vehicle involved, liability-only pays nothing at all — there is no other party to pay. That is not a loophole; it is the definition of the coverage [Insurance Information Institute, 2024]. Liability is third-party protection by design.
What this coverage does
A liability policy carries three numbers, written as a set such as 25/50/15. The first is bodily-injury liability per person — the most the policy pays for any one injured person. The second is bodily-injury liability per accident — the ceiling across everyone hurt in one crash. The third is property-damage liability — the most it pays for the other party's vehicle and property [Insurance Information Institute, 2024].
State minimum limits are thin. Many states set bodily-injury minimums at 25/50, and a serious motorcycle crash can generate hospital bills well past a $25,000 per-person cap. When the damage exceeds the policy limit, the at-fault rider is personally liable for the rest — a lawsuit, a lien, garnished wages. Buying liability above the state minimum is the single cheapest way to close that exposure, because the first dollars of liability coverage are inexpensive and the higher limits add only modestly to the premium.
Liability-only also leaves the rider exposed to drivers who carry nothing. If an uninsured driver hits you, your liability coverage does not pay you — it only pays others. Closing that gap takes a separate add-on, explained on the uninsured-motorist page.
A worked example makes the line concrete. Say a rider on a liability-only policy with 50/100/25 limits runs a stop sign and hits a parked car: the policy pays to repair that car up to $25,000 and covers the driver's injuries up to $50,000 per person — exactly the job liability is built for. Now reverse the same crash. The rider drops the bike avoiding a dog, no other vehicle involved, and the motorcycle needs $4,000 in repairs. Liability-only pays nothing: there is no third party, and the rider's own bike is not insured property on this policy. The rider covers the full $4,000 out of pocket. Same policy, two crashes, two opposite outcomes — the difference is whether someone else was harmed.
Who needs it
Liability-only fits one rider cleanly: the owner of a low-value motorcycle, owned outright with no loan, who has accepted that a total loss means buying another bike out of pocket. On an older bike worth a couple thousand dollars, the premium for collision and comprehensive over a few years can exceed what those coverages would ever pay after a deductible. For that rider, liability-only is a defensible, money-saving choice — not a corner cut.
It is the wrong choice for two riders. A financed or leased motorcycle cannot run liability-only: the lender requires collision and comprehensive in writing, and dropping them breaches the loan. And a rider on a newer or higher-value bike owned outright is gambling the bike's full replacement cost to save a modest monthly figure — a bad trade on a motorcycle worth real money. Those riders belong on full coverage. The liability-vs-full-coverage page gives a specific bike-value cutoff for the in-between case.
What it costs
Liability-only is the cheapest motorcycle policy available, because it covers the least. Sample annual premiums for liability-only coverage run roughly $100 to $300 across rider profiles — a methodology-attributed range, not a quote. The figure reflects motoinsure's sample modeling and is presented as a range because real premiums move with the state, the bike, the rider's age and record, and the liability limits chosen.
Two things move a liability-only premium most. The first is the state: minimum limits and base rates vary widely, so the same rider pays very different liability premiums in different states. The second is the limits themselves — raising bodily-injury coverage from a 25/50 minimum to 50/100 or 100/300 increases the premium, but far less than proportionally, which is why higher liability limits are usually worth buying. For how coverage choices and discounts move the number, see how much motorcycle insurance costs. Pull a live quote for your own state, bike, and limits.
Which providers offer it
Every motorcycle insurer sells liability-only coverage, because liability is the legal core of any policy — the question is never whether a carrier offers it, but which carrier prices it lowest for a given rider.
For a clean-record rider on a standard bike, GEICO usually posts the lowest liability-only quote in the market [GEICO, 2026]. Progressive sits slightly above GEICO on price but is the broader carrier if the rider expects to add coverage later. Allstate and State Farm sell liability-only through local agents, which suits a rider who wants to bundle the motorcycle with home and auto in person. A rider with an SR-22 requirement, a recent lapse, or a DUI on record will often be surcharged or declined by the standard carriers; Dairyland and The General are the specialists for that profile, at a higher premium. Compare the full set in the provider reviews, and confirm a live liability-only quote from two or three carriers — the cheapest name varies by state and rider.