Unlike Medicare Part B, which has a standard national premium, Medigap pricing is set entirely by private insurers and regulated at the state level. That means your neighbor two states away could be paying half — or double — what you pay for the exact same Plan G benefits. This guide explains what actually drives Medigap pricing and how to shop smart regardless of where you live.

The Three Ways Insurers Price Medigap

Attained-age-rated policies are the most common nationally and often look like the cheapest option when you first enroll—but they can become significantly more expensive over a 15–20 year retirement. Community-rated and issue-age-rated policies tend to be more predictable over the long run, even if the starting price is higher.

Why State Matters So Much

Each state’s insurance department regulates Medigap differently—some mandate community rating (Arkansas, Connecticut, Massachusetts, Maine, Minnesota, New York, Vermont, and Washington are commonly cited examples), some allow all three pricing methods, and some states have far more competing carriers than others, which drives prices down through competition. States with fewer insurers or stricter guaranteed-issue mandates (which spread risk across a broader population) tend to have higher average premiums, while states with more competition and looser rules often show a wider range of prices—meaning more opportunity to shop around and save.

Other Factors That Affect Your Premium

• Age: Especially under attained-age-rated policies, premiums typically rise with age.
• Gender: Many insurers price men and women differently, reflecting differing average healthcare utilization.
• Tobacco use: Smokers typically pay a surcharge, similar to life insurance pricing.
• Household discounts: Many carriers offer a discount (often 5–12%) if you or a spouse/partner also holds a policy with them.
• Plan letter: More comprehensive plans like G cost more than leaner options like A or high-deductible variants.
• Carrier overhead and claims history: Larger, more efficient insurers can sometimes offer lower rates for identical coverage.

Typical Premium Ranges by Plan (National Snapshot)

💡 These ranges are illustrative national estimates only—actual premiums vary significantly by state, insurer, and personal rating factors. Always request current, personalized quotes for your zip code before deciding.

The High-Deductible Plan G Option

For budget-conscious shoppers, High-Deductible Plan G offers the same comprehensive benefits as standard Plan G, but you pay a set annual deductible out of pocket before the plan starts covering costs. In exchange, the monthly premium is dramatically lower—often a fraction of standard Plan G. This can be an excellent option for healthy retirees who want catastrophic protection without paying for first-dollar coverage they may not use.

How to Actually Lower Your Medigap Cost

• Compare multiple carriers for the same plan letter — since benefits are identical, price is the main variable. See Medigap Plan Letters Explained for what each letter covers.
• Consider Plan N instead of Plan G if you don’t mind small copays—see our Plan G vs. Plan N comparison.
• Ask about household/multi-policy discounts.
• Re-shop periodically even after you’re enrolled—switching carriers for identical coverage at a lower price is possible in many cases. See Switching Medigap Plans.
• Enroll during your Open Enrollment window to guarantee the best available rate without underwriting — see Medigap Open Enrollment Period.

Frequently Asked Questions

Why does Medigap cost so much more in some states?

Pricing rules, the number of competing carriers, and state-level guaranteed issue mandates all affect average premiums, which is why identical coverage can cost very different amounts depending on where you live.

Will my Medigap premium go up every year?

It depends on the pricing method. Attained-age-rated policies typically increase as you age; community-rated and issue-age-rated policies are more stable but can still rise with inflation and claims trends.

Is High-Deductible Plan G a good deal?

It can be, especially for healthy retirees who want lower premiums and are comfortable paying a set deductible before coverage kicks in for cost-sharing.

Many people assume Medigap works like Medicare Advantage, where you’re locked in until the next Annual Enrollment Period. In reality, you can apply to switch your Medigap policy any time of year—the real question isn’t “when,” it’s “will I qualify without underwriting?” This guide walks through exactly how switching works.

Why People Switch Medigap Plans

• A new insurer offers the same plan letter at a significantly lower premium
• Their current insurer has raised rates faster than competitors
• They want to move from a richer plan (like G) to a leaner one (like N) to save money
• They’re unhappy with a carrier’s customer service or claims handling
• They’re moving to a new state with different available carriers

The Two Types of Switches

1. Switching Carriers, Same Plan Letter

Because Medigap benefits are standardized by letter, switching from one company’s Plan G to another company’s Plan G doesn’t change your coverage at all—only your premium and your insurer. This is the most common and lowest-risk type of switch, though it still typically requires medical underwriting if you’re outside your Open Enrollment window or a Guaranteed Issue situation.

2. Switching Plan Letters

Moving from a richer plan to a leaner one (like G to N) or vice versa is also possible, but changes your actual benefits and cost-sharing structure. Review Medigap Plan Letters Explained and our focused Plan G vs. Plan N comparison before making this kind of switch.

Do You Need Medical Underwriting to Switch?

In most cases, yes—unless one of the following applies:

• You’re still within your original 6-month Medigap Open Enrollment Period
• You qualify for a Guaranteed Issue Right (see our full list in Guaranteed Issue Rights for Medigap)
• You live in a state with a year-round guaranteed issue or an annual “birthday rule”/”anniversary rule” switching window (including states like California, Missouri, Oregon, and others with their own specific rules—always confirm current rules with your state insurance department)

Outside those situations, the new insurer can ask health questions and potentially charge more, impose a waiting period, or deny your application. Review exactly how this process works in Medigap Underwriting & Pre-Existing Conditions Explained.

The 30-Day Free Look Period

This free look period exists specifically to reduce the risk of switching. You pay both premiums briefly during the overlap, but it means you’re never coverage-less while testing a new policy.

Step-by-Step: How to Switch Medigap Plans

Common Mistakes When Switching

• Canceling the old policy too early—always wait for new policy approval first.
• Assuming a lower premium always means a better deal—confirm the plan letter and benefits are truly equivalent.
• Skipping the eligibility check—applying without confirming Guaranteed Issue status can lead to unexpected denial or higher rates.
• Not comparing carrier financial strength ratings before committing to a new insurer for the long term.

Frequently Asked Questions

Is there a specific time of year to switch Medigap plans?

No. Unlike Medicare Advantage and Part D, Medigap has no annual enrollment window—you can apply to switch at any time, subject to underwriting rules.

Will I have a gap in coverage while switching?

Not if you follow the correct order: get approved for the new policy first, use the 30-day free look period, and only cancel your old policy after the new one is active.

Can I switch from Plan G to Plan N to save money?

Yes, though this typically requires underwriting outside your Open Enrollment window since it’s a new application to a different plan letter.