High-Deductible Plan G vs. Regular Plan G: Which Saves You More in 2026?

They cover the same thing — the difference is when

Here's the part that surprises people: High-Deductible Plan G and regular Plan G cover exactly the same services. Both are Medigap (Medicare Supplement) plans that pay the gaps Original Medicare leaves — the Part A deductible, the 20% Part B coinsurance, excess charges, and more.

Because both are the same plan, both cover the same gaps once active: your Part A hospital and skilled nursing facility coinsurance, the 20% Part B coinsurance, hospice cost-sharing, foreign travel emergency care, and the Part A hospital deductible. The one gap neither version of Plan G covers is the small annual Part B deductible — $283 in 2026 — which most beneficiaries barely notice.

The only difference is timing. With regular Plan G, the coverage starts almost immediately (after the small Part B deductible). With High-Deductible Plan G, you first pay an annual deductible — $2,950 in 2026, a figure CMS sets each year — out of pocket. Once you hit it, HDG covers everything regular Plan G would, for the rest of the year.

So it's not a weaker plan. It's the same plan with a deductible in front of it, and in exchange, a dramatically lower monthly premium.

The real math: when HDG saves money

The trade is simple: HDG saves you a lot on premiums but exposes you to up to $2,950 in a bad year. Whether it wins depends on how much care you actually use.

Say regular Plan G costs $140/month and HDG costs $45/month — a $95/month difference, or $1,140 a year in premium savings. If you're healthy and your out-of-pocket costs stay under that $1,140 gap, HDG comes out ahead. Even in a moderate year, you're often still ahead because the premium savings offset most of the deductible.

The worst case for HDG is a year where you hit the full $2,950 deductible — but even then, your total (premium savings minus deductible) is often close to what you'd have paid in regular Plan G premiums anyway. And HDG caps your exposure: once you hit the deductible, you're fully covered.

Sources: CMS High-Deductible Plan G deductible; Medicare.gov Medigap. Premiums vary by state, age, and carrier.

Who each plan is really for

High-Deductible Plan G tends to fit people who are relatively healthy, want the peace of mind of Medigap-level protection, and would rather keep more money in their pocket each month while accepting some risk in a bad year. It's especially appealing if you have savings you could tap for the deductible if needed.

Regular Plan G tends to fit people who use a lot of care — frequent specialists, ongoing treatments, or a chronic condition — and who value knowing their costs are predictable and low from day one. For them, paying the higher premium buys certainty.

There's no universally right answer. It comes down to your health, your budget, and how you feel about trading a lower premium for a possible big bill in a rough year.

How to decide with confidence

The smartest way to choose is to look at your actual expected usage. Estimate your typical year of medical care, compare the premium difference against the deductible risk, and be honest about whether you'd rather save monthly or lock in certainty.

Also check the premium difference in your specific ZIP code — it varies by state and carrier, and a bigger gap makes HDG more attractive. And remember that with any Medigap plan, switching later can require medical underwriting outside your one-time open enrollment, so it's worth getting right up front.

A licensed agent can pull the real HDG and regular Plan G premiums for your area and age, run the break-even math with you, and flag which carriers price HDG most competitively — free, no obligation.