Core Insurance Solutions
    By Core Insurance SolutionsOctober 21, 2026
    Plan G vs High-Deductible Plan G: Which Fits You?

    Plan G vs High-Deductible Plan G: Which Fits You?

    Both plans cover the same Medigap benefits. The difference is timing. Standard Plan G has a higher monthly premium and leaves you with almost nothing to pay for Medicare-covered care after the Part B deductible. High-Deductible Plan G (HDG) has a much lower premium, but you pay the first $2,950 of Medicare-covered costs yourself in 2026 before it pays anything. That deductible rises to $3,050 on January 1, 2027, which matters if you are choosing during this fall’s enrollment season.

    Below we explain how each plan works, how to run the break-even math with your own quotes, and who tends to be comfortable with each choice.

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    TL;DR

    • Benefits are identical once the HDG deductible is met. The trade is a lower premium now against a possible bill of up to the full deductible later.
    • The 2026 HDG deductible is $2,950. In 2027 it becomes $3,050.
    • HDG is only open to people who became eligible for Medicare on or after January 1, 2020, and the premium difference between the two plans varies by carrier and by your age.
    • HDG suits people with a cash cushion and modest expected care. Standard Plan G suits people who want predictable costs.
    • Switching later may mean medical underwriting, so think about whether you can live with your choice before you sign.

    Table of Contents

    How Plan G and High-Deductible Plan G work

    Medigap plans are sold by private insurers to help pay your share of Original Medicare costs: copayments, coinsurance and deductibles. Benefits are standardized by federal rules, so a Plan G from one carrier covers the same things as a Plan G from another. Medicare.gov’s plan comparison chart shows the full grid.

    Standard Plan G is the most comprehensive option for people newly eligible for Medicare. KFF reports it covers all Medicare cost-sharing except the annual Part B deductible, and that it held 46% of Medigap policyholders in 2025.

    HDG is the same plan with one added condition. Before the policy pays, you must cover the annual deductible out of pocket, using Medicare-covered costs such as coinsurance, copayments and Medicare deductibles. After that, it pays like regular Plan G for the rest of the calendar year. The deductible resets every January.

    High-deductible Plan G deductible and annual reset

    What counts toward the deductible

    Only Medicare-approved cost-sharing counts. Your monthly premium does not. Prescription drug costs under a separate Part D plan do not either, because Part D is a different policy.

    There is one odd case worth knowing. According to the NAIC’s Medigap guidance, if you meet the HDG deductible entirely through Part A expenses, later Part B deductible expenses in that year are not covered until you meet the Part B deductible yourself. It is rare, but it is a good question to ask an agent.

    If you are pricing a specific outpatient test, such as a bone density scan, this guide to DEXA scan costs with and without insurance shows what people pay, which helps you picture how routine services nibble at a deductible.

    The numbers side by side

    Standard Plan G High-Deductible Plan G
    Monthly premium Higher Lower
    Annual deductible (2026) None for the plan (you still pay the Part B deductible) $2,950
    Annual deductible (2027) None for the plan (you still pay the Part B deductible) $3,050
    After the deductible Pays Medicare cost-sharing, including Part B excess charges Same
    Who can buy it People eligible for Medicare on or after January 1, 2020 Same

    We have left premiums out of the table on purpose. They depend on the carrier, your age, your ZIP code and sometimes your tobacco use, and any figure we printed would be out of date or wrong for you. The Florida Department of Financial Services notes that even with standardized benefits, premiums can differ widely between companies depending on their claims experience and rating method. That is why a quote comparison matters more than any average you read online.

    Doing the break-even math

    Here is a simple way to judge HDG with real quotes. The figures below are made up to show the method, not actual prices.

    1. Get a quote for standard Plan G and for HDG from the same carrier.
    2. Subtract the HDG premium from the Plan G premium. Multiply by 12. That is your annual savings.
    3. Compare the savings with the deductible. The gap is the most extra money HDG can cost you in a bad year.

    Illustration: Say standard Plan G is $150 a month and HDG is $50 a month. You save $100 a month, or $1,200 a year.

    Your Medicare-covered cost-sharing in the year HDG out of pocket (2026 deductible) Net result versus standard Plan G
    $0 $0 You come out $1,200 ahead
    $1,200 $1,200 Break-even
    $2,950 or more $2,950 You come out $1,750 behind

    The worst case is capped. In that example, the most you can lose compared with standard Plan G is the deductible minus the yearly savings. Because standard Plan G also has the Part B deductible, the real gap in a given year is slightly smaller than shown. The bigger your premium gap, the safer HDG looks. A premium gap of only $30 a month leaves you with $360 in savings against $2,950 of exposure, which is a much harder bet.

    Two things push the math in either direction:

    • Premiums rise. Medigap premiums generally go up with age or over time, depending on how the carrier prices. A small gap today may widen or shrink, so ask the agent how the carrier rates its policies.
    • The deductible rises. It is indexed each year. CMS says the increase for 2027 comes from a 3.40% CPI-U change, bringing it to $3,050.

    Who HDG tends to suit

    KFF points out that lower premiums come with real upfront exposure, and that the better choice depends on how much care you expect to use and whether you can absorb a surprise bill. In practice, we see HDG discussed most for people who:

    • are in good health and see doctors mainly for routine care,
    • have savings set aside, such as in a dedicated account, to cover the deductible without stress,
    • are comfortable with some uncertainty in exchange for lower fixed costs,
    • are newly 65 and want to keep the benefit structure of Plan G while paying less each month.

    Who is usually better off with standard Plan G

    Standard Plan G tends to fit people who:

    • have chronic conditions, regular specialist visits or planned procedures,
    • live on a fixed income where a $2,950 bill would force hard choices,
    • value knowing their exact yearly health spending outside premiums,
    • want to avoid thinking about the deductible every year.

    A hospital stay is the scenario to picture. Inpatient care can generate Medicare cost-sharing quickly, and under HDG you carry that until the deductible is met. Under standard Plan G the policy takes over from the first dollar of covered cost-sharing, apart from the Part B deductible.

    What if you are choosing between Plan G and Plan N?

    Some people find both Plan G options too costly and look at Plan N. It has its own trade-offs. According to Medicare.gov, Plan N can involve copayments of up to $20 for some office visits and up to $50 for certain emergency room visits, and it does not cover Part B excess charges. We cover that comparison in detail in our guide to Plan G vs Plan N in Florida.

    If you are also weighing Medigap against a Medicare Advantage plan, our page on Medigap vs Medicare Advantage in Florida lays out how the two differ.

    Eligibility and switching: read this before you decide

    HDG exists because of federal law. People who became eligible for Medicare on or after January 1, 2020 cannot buy Medigap plans that cover the Part B deductible, such as Plan C or the original Plan F, so Plan G and its high-deductible version became the main comprehensive choices for them. If you have been on Medicare longer, your options may differ, and an agent can confirm what you qualify for.

    Switching is the part many people underestimate. Outside a guaranteed issue period, Medicare.gov explains that insurers can use medical underwriting and may decline you for pre-existing conditions. If accepted, there may be a waiting period of up to six months for coverage of those conditions, which is often reduced by prior creditable coverage. So starting on HDG intending to move to standard Plan G after you get sick may not work. Decide with that in mind.

    Timing also matters for first-time enrollees. Your Medigap open enrollment window is tied to when you start Part B. Our Medicare enrollment timeline walks through the dates.

    Our perspective: price the risk, not only the premium

    We talk with Lakeland-area seniors every week who ask which plan is cheaper. The honest answer is that neither is cheaper in every year. HDG is cheaper in a quiet year and standard Plan G is cheaper in a heavy one.

    Our perspective: price the risk, not only the premium — overview diagram

    So we start with the person, not the plan. A holistic health needs assessment looks at your conditions, your doctors, your prescriptions and how you feel about financial surprises. Then we compare quotes from the carriers we work with, because the same lettered plan can carry very different prices. The gap between the Plan G and HDG quotes drives the decision more than anything else. If the gap is wide and you have a cushion, HDG can make sense. If the gap is narrow, we often steer people to standard Plan G, since little is saved for the risk taken.

    We also review coverage every year. Premiums change, health changes, and the HDG deductible changes. A plan that fit at 65 may not fit at 70, and it is better to find that out in a review than in a hospital bill.

    — Core Insurance Solutions

    Getting quotes for your situation

    If you are in Lakeland, Winter Haven, Plant City, Bartow or elsewhere in Polk County, we can run the comparison with you. Our Medigap plans page explains how we work, and you can see the carriers we work with. Our services include the needs assessment, unbiased carrier comparison, prescription cost review and yearly policy audits. According to how we operate, these come at no direct cost to you. You can start at coreforseniors.com. For a deeper look at how the high-deductible option plays out here, read our article on the $2,950 High-Deductible Plan G in Florida.

    We do not offer every plan available in your area. For plan information you can also use Medicare.gov or call 1-800-MEDICARE.

    Questions to ask before you pick

    • What is the exact premium difference between Plan G and HDG from this carrier, at my age and ZIP code?
    • How does the carrier set future premium increases?
    • Could I pay the full deductible in one month if I had to?
    • Do I have a medical event on the horizon, such as surgery?
    • Is my drug coverage handled separately? Part D costs do not count toward the HDG deductible, so look at Part D plans in Lakeland alongside your Medigap choice.

    FAQ

    Is High-Deductible Plan G the same as Plan G after the deductible?

    Yes. Once you meet the annual deductible, HDG pays the same benefits as standard Plan G for the rest of the calendar year. The deductible resets each January.

    How much is the High-Deductible Plan G deductible?

    It is $2,950 for 2026 and $3,050 starting January 1, 2027. CMS adjusts it each year for inflation.

    Do my monthly premiums count toward the HDG deductible?

    No. Only Medicare-covered costs you pay, such as coinsurance, copayments and deductibles, count toward it. Premiums and separate drug plan costs do not.

    Can I switch from HDG to standard Plan G later?

    You can apply, but outside a guaranteed issue period the insurer may require medical underwriting and can deny coverage. A waiting period for pre-existing conditions of up to six months may apply. Ask an agent about your specific timing before you enroll.

    Is Plan F an option instead?

    Not for people who became eligible for Medicare on or after January 1, 2020. They cannot buy plans that cover the Part B deductible, which includes Plan F. Plan G is the closest comprehensive option.

    Sources

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