Updated July 2, 2026
New Jersey requires community rating for Medigap. That means a 65-year-old and a 75-year-old pay the same premium for the same plan from the same insurer. Age cannot factor into pricing at all. This is one of only a handful of states with that requirement, per the New Jersey Department of Banking and Insurance, and it has a direct effect on what you pay at different stages of life.
FAQs
How much does Medigap Plan G cost in New Jersey?
Plan G premiums in New Jersey run around $170 a month for most new enrollees, though your exact rate depends on your age, sex, tobacco use and the insurer you choose.
What happens if I apply for Medigap in New Jersey after my enrollment window closes?
Outside the 6 month Open Enrollment period, insurers in New Jersey can ask health questions and use medical underwriting, which can mean a higher premium or a denied application.
What community rating means for your premium
In most states, attained-age or issue-age rating keeps early premiums low and increases them later. New Jersey's community rating flips that math. Your Plan G premium at age 65 will be higher than it would be under attained-age pricing in another state: around $170 per month on average: but it reflects what older enrollees in the same pool pay, not a price set purely by your age. The upside is that your premium will not automatically increase just because you get older. It can still change when the insurer files a rate adjustment, but those increases apply to the whole pool, not individually by age. Compare plans using the plan comparison page and get an estimate from the Medigap cost calculator with this pricing model in mind.
Things to Know Before You Enroll in New Jersey
Federal open enrollment rules still apply. You have 6 months from the date your Part B starts (at 65 or older) to enroll without health screening. Community rating means you will not pay more for preexisting conditions even during open enrollment, but the enrollment window still matters for access. After it closes, New Jersey carriers can require you to answer health questions in some circumstances. The open enrollment calculator shows your specific window, and the Medigap vs Advantage calculator can help you compare long-term costs before you decide.