Add-ons in brief, and when they matter
Add-ons, sometimes called endorsements or riders, are optional coverages you attach to a core auto policy. No state requires them, and none of them replace liability, collision or comprehensive. What they do is handle specific situations that the core coverages leave awkward or expensive.
The right add-ons depend on your life more than your car. If you have one car and no easy way to get to work, rental reimbursement is doing a different job than it would for a household with a spare vehicle. If you owe more on your loan than the car is worth, gap coverage fills a real hole. If you already have roadside help through a motor club, a credit card or your car's manufacturer, paying for it twice doesn't help.
A practical way to start is to picture the most disruptive week you could have with your car: a breakdown far from home, a totaled car you're still paying for, or two weeks without wheels while a shop waits on parts. Then match an add-on to each problem, and skip the ones that don't match anything.
Each add-on: covered vs. not covered
Here's what each one typically does:
- Gap coverage: pays the difference between your car's actual cash value and your loan or lease balance if the car is totaled
- Rental reimbursement: pays part of a rental car while yours is being repaired after a covered claim, up to a daily and total limit
- Roadside assistance: covers towing, jump starts, flat tire changes, lockouts and fuel delivery, often with a limit per call
- New-car replacement: pays toward a new car of the same make and model, rather than actual cash value, if a newer car is totaled
- Accident forgiveness: keeps a first qualifying accident from raising your price, depending on the insurer's rules
What they don't cover matters too. Gap coverage usually won't pay overdue loan payments or a balance carried over from a trade-in. Rental reimbursement usually requires the repair to be part of a covered claim. New-car replacement often applies only for a limited time or mileage after purchase. Most of these also need collision and comprehensive on the policy first.
The numbers that set your price
Most add-ons are priced as a small addition to your premium. Each insurer prices them differently, and some bundle several into a package. Rental reimbursement is usually sold with a daily limit and a total cap, so check whether the daily amount would actually rent a car like yours where you live. Roadside plans may limit how far a tow goes or how many calls a year are covered.
New-car replacement and accident forgiveness come with eligibility rules. The car may need to be under a certain age, or you may need a clean record for a set number of years with that insurer. Those rules differ, so ask rather than assume. Gap coverage can also come from a dealer or lender, sometimes at a different price than an insurer charges, so it's worth comparing both.
Timing, and what happens after you submit the form
Timing matters most for gap and new-car replacement. Some insurers only let you add them while the car is new or recently purchased, and that window varies by insurer and state. Accident forgiveness may need to be in place, or earned, before an accident happens. Rental and roadside can usually be added at renewal or partway through a term.
To compare add-ons side by side, fill in the AutoAssures form once. It goes to up to four licensed partners that write auto policies in your state, and they contact you with quotes. It's free, and there's no obligation. Ask each partner which add-ons they offer, what the limits are, and what each one adds to the price.
