Car Insurance in Portsmouth, NH

Portsmouth is a great place to drive until it isn’t. A summer Saturday hunting for parking near Market Square, an icy Spaulding Turnpike ramp in January, a slow crawl over the Piscataqua River Bridge into Maine. Portsmouth Atlantic Insurance is an independent agency on Islington Street, and we’ve been putting together car insurance for Seacoast drivers since 2005. Because we compare 30+ carriers, the policy gets built around how you actually drive and what you have to protect.

Cars on a tree-lined street of historic homes in downtown Portsmouth, NH, in early fall

We opened in 2005, we’re licensed in 10 states, and we’re the most-reviewed independent insurance agency in New Hampshire, with 1,000+ Google reviews across our two offices and over 2,000 testimonials from the people we insure.

Does New Hampshire Require Car Insurance?

New Hampshire doesn’t require most drivers to buy auto insurance. What the state does require is financial responsibility. Under RSA 264:20, proof of financial responsibility means being able to pay $25,000 for injury to one person, $50,000 when two or more people are hurt, and $25,000 for property damage. The New Hampshire Insurance Department’s auto insurance guide explains that if you can’t meet those requirements after an at-fault accident, your driving privileges may be suspended, and a court could order your assets used to pay the damages.

If you do buy a policy, the same guide says the minimum liability limits are 25/50/25. New Hampshire law also requires at least $1,000 of medical payments coverage and uninsured motorist coverage. Under RSA 264:15, when you choose liability limits above the minimum, your uninsured motorist coverage automatically matches the higher limits.

Some drivers don’t get a choice. The NH Division of Motor Vehicles can place a driver under an insurance filing requirement, which means carrying a policy and having the insurer file an SR-22 certificate. For a longer walk-through, read our post Does New Hampshire Require Car Insurance?.

Why the State Minimum Rarely Fits a Portsmouth Household

The 25/50/25 limits are a floor, not a recommendation. A crash involving a newer SUV, a couple of passengers and a damaged guardrail on I-95 can run past those numbers quickly. Whatever the policy doesn’t pay becomes your problem, and if you own a home in Portsmouth, Rye or New Castle, have retirement savings, or earn a strong income, those are the assets an injured person’s attorney will look at.

Coverage for Higher-Value Drivers on the Seacoast

Higher liability limits. We’ll show you how much more protection the next step up buys. In New Hampshire your uninsured motorist limits rise with your liability limits, so you’re protecting your own family at the same time.
A personal umbrella. An umbrella sits on top of your auto and home policies. In New Hampshire, RSA 264:15 says an umbrella or excess policy over your auto coverage must also provide uninsured motorist coverage equal to its limits unless the named insured rejects it in writing. That’s a decision worth making on purpose. See our umbrella insurance page.
Multiple and luxury vehicles. Households with several cars, a leased European sedan or a newer EV need collision and comprehensive set up correctly, and many carriers offer options such as new car replacement or original manufacturer parts. We’ll tell you which ones are available for your vehicles.
Collector and weekend cars. A car that only comes out on dry summer days along Route 1A usually belongs on its own policy. Our collector car insurance page explains how agreed value works.
Young drivers. Adding a teenager, or a student driving back and forth to UNH in Durham, is a big change. We’ll help you list them correctly and keep your limits where they belong.

Driving in Portsmouth: Seacoast Roads, Winter and the Commute

Local driving shapes the coverage you need. Portsmouth sits where I-95, the Route 1 Bypass and the Spaulding Turnpike come together, with the Memorial and Sarah Mildred Long bridges carrying traffic to Kittery. If you commute to Pease International Tradeport, the Portsmouth Naval Shipyard in Kittery or down toward Boston, you’re adding highway miles and bridge traffic to every week. Downtown means tight streets, parking garages and door dings around Market Square.

Then there’s the weather: nor’easters, freezing rain, road salt and deer along the back roads toward Greenland and Newington. Comprehensive coverage is what pays for a fallen branch, a deer strike, theft or flood damage to your car. The New Hampshire Insurance Department notes that a flood insurance policy doesn’t cover cars, and flood damage to a vehicle is generally covered only if you bought comprehensive on your auto policy. If you park near the water in the South End, Peirce Island or along Route 1A, that matters.

Bundling Car and Home Insurance in Portsmouth

Most Portsmouth households insure more than a car: a house or condo, maybe a boat or a summer place. Keeping auto, home and umbrella coordinated means the liability limits line up and there are no gaps between policies. Learn more on our auto insurance page, or about the office on our Portsmouth, NH insurance agency page.

A Local Independent Agency on Islington Street

As an independent agency, we don’t work for one insurance company. We work for you, compare 30+ carriers and explain the differences in plain English. Our Portsmouth office is at 601 Islington St, Unit 206, Portsmouth, NH 03801. We also have an office in Stratford, CT, and because we’re licensed in 10 states, we can help when a child heads off to school or a vehicle is garaged at a second home in another state.

Reviewed by Jon Merwin, owner of Portsmouth Atlantic Insurance. Last reviewed October 2026.

Get a Car Insurance Quote in Portsmouth

Every household is different, so the best next step is a conversation. Call us at (603) 431-4020, email insure@portsmouthatlanticins.com, or start your car insurance quote online. We’ll compare your options and explain them in plain English.

Start Your Quote

Car Insurance FAQs for Portsmouth, NH

Is car insurance required in New Hampshire?

Most New Hampshire drivers aren’t required to buy auto insurance, but you must be able to show financial responsibility after an at-fault accident. If you can’t, your driving privileges may be suspended, and some drivers are ordered by the DMV to carry insurance and file an SR-22.

What are New Hampshire’s minimum car insurance limits?

If you buy a policy, the minimum liability limits are $25,000 per person and $50,000 per accident for bodily injury, and $25,000 for property damage. Policies must also include at least $1,000 of medical payments coverage and uninsured motorist coverage.

Do I need uninsured motorist coverage in New Hampshire?

Yes, if you buy auto insurance it must include uninsured motorist coverage. When you choose liability limits above the minimum, your uninsured motorist limits automatically match them under RSA 264:15.

How much liability coverage should I carry?

It depends on what you have to protect. Homeowners and families with savings usually choose limits well above the state minimum and add a personal umbrella. We’ll walk through your assets and show you the options side by side.

Does car insurance cover flood damage in Portsmouth?

Flood damage to a car is generally covered only if you carry comprehensive coverage on your auto policy. A flood insurance policy on your home does not cover vehicles.

Can you insure several cars, a collector car and a teen driver together?

Yes. We regularly coordinate households with multiple vehicles, young drivers and weekend or collector cars, and we can line the auto policy up with your home and umbrella coverage.