Medigap Plan G High-Deductible vs Standard: Cost Break-Even Analysis 2026

TL;DR Quick Answer

Medigap Plan G High-Deductible (Plan G HDHP) offers the same coverage as Standard Plan G but requires you to pay a $2,870 deductible (2026 amount) before benefits kick in, in exchange for premiums that are $50–$100+ lower per month. The break-even point is roughly $600–$1,200 in annual premium savings versus the deductible gap — meaning if you expect less than $2,870 in Medicare-approved costs per year, the high-deductible version saves you money. If you regularly hit or exceed the deductible, Standard Plan G provides more predictable out-of-pocket costs and is usually the better financial choice.

Key Takeaways

1. Same coverage, different cost structure: Plan G HDHP and Standard Plan G cover identical services — the only difference is the $2,870 annual deductible you must meet before the HDHP pays anything
2. Premium savings are real: Plan G HDHP premiums are typically 40–60% lower than Standard Plan G, saving $600–$1,400+ per year depending on your age, state, and insurer
3. Break-even is around $2,870 in medical costs: If your annual Medicare-approved charges stay below approximately $2,870, the HDHP version nets you savings; above that threshold, Standard Plan G becomes cheaper overall
4. HDHP works best for healthy beneficiaries: Those with minimal doctor visits, no chronic conditions, and low prescription drug utilization benefit most from the high-deductible option
5. You can switch later — with caveats: Moving from HDHP to Standard Plan G outside your Medigap Open Enrollment Period may require medical underwriting, though some states offer guaranteed-issue switching windows
6. Both plans require separate Part B deductible: Neither Plan G HDHP nor Standard Plan G covers the Medicare Part B deductible ($257 in 2026) — that is a separate out-of-pocket expense

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What Is Medigap Plan G High-Deductible?

Medigap Plan G High-Deductible (often labeled “Plan G HDHP” or “High-Deductible Plan G”) is a version of the popular Standard Plan G that comes with a lower monthly premium but requires you to pay an annual deductible before the plan’s benefits begin. Once you meet that deductible, the coverage is identical to Standard Plan G — meaning it pays 100% of Medicare-approved costs for the rest of the year.

2026 Plan G High-Deductible Amount

For 2026, the IRS sets the Medigap high-deductible amount at $2,870. This is the total you must pay out-of-pocket for Medicare-covered services before Plan G HDHP starts paying. This amount includes the Medicare Part A deductible ($1,676 in 2026) and the Part B deductible ($257 in 2026), plus any coinsurance or copays for covered services.

It’s important to understand that only Medicare-covered charges count toward the $2,870 deductible. Non-Medicare-covered services (like routine dental, vision, or hearing) do not apply.

How Plan G HDHP Differs from Standard Plan G

Feature	Standard Plan G	Plan G High-Deductible
Monthly premium (age 65, avg.)	$130–$180	$50–$85
Annual deductible	$0 (plan-level)	$2,870 (2026)
Coverage after deductible	100% Medicare-approved	100% Medicare-approved
Part A deductible	Covered	You pay (counts toward $2,870)
Part B deductible	Not covered ($257 in 2026)	Not covered (but counts toward $2,870)
Part B coinsurance (20%)	Covered	You pay until $2,870 met
Part B excess charges	Covered	Covered after deductible met
Foreign travel emergency	80% up to $50K lifetime	80% up to $50K lifetime (after deductible)
Skilled nursing coinsurance	Covered	Covered after deductible met

As the table shows, once you satisfy the $2,870 deductible, Plan G HDHP provides the exact same comprehensive coverage as Standard Plan G. The trade-off is purely a question of when you pay — upfront via higher premiums (Standard) or potentially via the deductible if you need care (HDHP).

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Premium Comparison: How Much Do You Actually Save?

The primary reason beneficiaries choose Plan G HDHP is the significant premium reduction. Here’s a realistic look at monthly and annual premium differences based on 2026 market data.

Sample Monthly Premiums by Age (National Averages, 2026)

Age	Standard Plan G	Plan G HDHP	Monthly Savings	Annual Savings
65	$145	$60	$85	$1,020
70	$165	$72	$93	$1,116
75	$195	$88	$107	$1,284
80	$235	$110	$125	$1,500
85+	$285	$140	$145	$1,740

Note: Premiums vary significantly by state, gender, tobacco use, and insurer. These are national averages for non-tobacco female applicants using community-rated or issue-age pricing.

Annual Cost Scenarios

The real question is: what happens to your total annual cost when you factor in medical expenses?

Let’s model three realistic scenarios for a 70-year-old beneficiary:

Scenario 1: Healthy — Minimal Medical Use ($800/year in Medicare charges)

Cost Category	Standard Plan G	Plan G HDHP
Annual premium	$1,980	$864
Out-of-pocket medical	$257 (Part B deductible)	$800 (below $2,870 deductible)
Total annual cost	$2,237	$1,664
HDHP advantage	—	$573 saved

Winner: Plan G HDHP — You save $573 per year because your medical costs never reach the $2,870 deductible, and your premiums are substantially lower.

Scenario 2: Moderate Use ($3,500/year in Medicare charges)

Cost Category	Standard Plan G	Plan G HDHP
Annual premium	$1,980	$864
Out-of-pocket medical	$257 (Part B deductible)	$2,870 (deductible met)
Total annual cost	$2,237	$3,734
Standard advantage	$1,497 saved	—

Winner: Standard Plan G — Once your medical costs exceed the $2,870 deductible threshold, Standard Plan G’s higher premium is more than offset by the elimination of out-of-pocket medical expenses.

Scenario 3: High Medical Use ($15,000+/year in Medicare charges)

Cost Category	Standard Plan G	Plan G HDHP
Annual premium	$1,980	$864
Out-of-pocket medical	$257 (Part B deductible)	$2,870 (deductible, then covered)
Total annual cost	$2,237	$3,734
Standard advantage	$1,497 saved	—

Winner: Standard Plan G — For beneficiaries with chronic conditions, frequent hospitalizations, or expensive specialist care, Standard Plan G consistently saves $1,000–$1,500+ annually.

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Break-Even Analysis: The Math

The break-even point is where Plan G HDHP’s total annual cost (premium + medical out-of-pocket) equals Standard Plan G’s total annual cost.

Break-Even Formula

Standard Plan G annual premium = HDHP annual premium + out-of-pocket costs

Let P_std = Standard annual premium
Let P_hd = HDHP annual premium
Let D = $2,870 (2026 HDHP deductible)

If medical costs < D:
  Total HDHP cost = P_hd + medical costs
  Break-even when: P_std + $257 = P_hd + medical costs
  Break-even medical costs = P_std - P_hd + $257

If medical costs ≥ D:
  Total HDHP cost = P_hd + $2,870
  Break-even when: P_std + $257 = P_hd + $2,870
  Premium savings needed = $2,870 - $257 = $2,613

For our 70-year-old example ($1,980 standard premium, $864 HDHP premium):

• Annual premium savings: $1,116
• The deductible gap: $2,870 - $257 (what Standard G doesn’t cover) = $2,613
• Since $1,116 < $2,613, Standard Plan G is cheaper once you hit the full deductible
• HDHP is better only if your medical costs stay below approximately $1,373 ($1,116 + $257) in a year

Break-Even Medical Cost Thresholds by Age

Age	Standard Annual Premium	HDHP Annual Premium	Premium Savings	Break-Even Medical Costs*
65	$1,740	$720	$1,020	~$1,277
70	$1,980	$864	$1,116	~$1,373
75	$2,340	$1,056	$1,284	~$1,541
80	$2,820	$1,320	$1,500	~$1,757
85+	$3,420	$1,680	$1,740	~$1,997

*Break-even medical costs = Premium savings + $257 (Part B deductible). Below this threshold, HDHP saves money; above it, Standard Plan G is more economical.

Key insight: The older you are, the higher the break-even threshold — meaning Plan G HDHP becomes slightly more favorable at older ages because the premium gap widens. However, older beneficiaries also tend to have higher medical utilization, which often pushes them past the break-even point anyway.

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Who Should Choose Plan G High-Deductible?

Plan G HDHP is the right choice for beneficiaries who:

1. Are in excellent health with no chronic conditions and minimal prescription drug needs
2. Visit doctors fewer than 4–6 times per year for routine check-ups only
3. Have emergency savings or an HSA-eligible account to cover the $2,870 deductible if needed
4. Want to minimize fixed monthly costs and prefer paying only if they actually use medical services
5. Are between 65–72 years old and still in relatively good health
6. Live in states with higher Medigap premiums (like New York, Connecticut, or Massachusetts) where the premium gap is even wider

HSA Compatibility

One often-overlooked advantage of Plan G HDHP is that it may qualify you to contribute to a Health Savings Account (HSA) in certain situations. While Medicare enrollment generally disqualifies you from making new HSA contributions, beneficiaries who are not yet enrolled in Medicare Part A (e.g., those delaying Part A to keep employer coverage) and who have Plan G HDHP as a standalone supplement may be able to use HSA funds to pay the deductible tax-free. Consult a tax advisor for your specific situation.

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Who Should Choose Standard Plan G?

Standard Plan G remains the better option for beneficiaries who:

1. Have chronic health conditions such as diabetes, heart disease, COPD, arthritis, or cancer
2. See specialists regularly (cardiologists, rheumatologists, oncologists, etc.)
3. Take expensive medications that require frequent doctor monitoring
4. Want predictable annual costs without the risk of a large deductible
5. Have a history of hospitalizations or surgeries that are likely to recur
6. Travel frequently internationally and want immediate coverage without meeting a deductible first

For a deeper look at which plan fits your health profile, see our guide on the Best Medigap Plans by Health Profile in 2026.

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Plan G HDHP Enrollment Considerations

When Can You Enroll?

You can enroll in Plan G HDHP during the same enrollment windows as any other Medigap plan:

• Medigap Open Enrollment Period (MOEP): The 6-month window starting the month you turn 65 and enroll in Medicare Part B. This is the best time — guaranteed issue, no medical underwriting.
• Guaranteed-Issue Rights: Certain situations (like losing employer coverage or your Medicare Advantage plan leaving your area) trigger a guaranteed-issue right to enroll in Plan G HDHP without medical questions.
• Medical Underwriting: Outside of MOEP and guaranteed-issue situations, insurers can ask health questions and deny coverage based on your medical history.

For a complete overview of enrollment timing, see our Medicare Supplement Open Enrollment Deadline Checker.

Switching Between HDHP and Standard Plan G

Switching from Plan G HDHP to Standard Plan G (or vice versa) is considered a plan change, and in most states it requires medical underwriting. This means:

• During MOEP: You can switch freely without health questions
• Outside MOEP: You may need to pass medical underwriting, and you could be denied
• Birthday rule states: Some states (like California, Oregon, and others) allow you to switch to a plan of equal or lesser benefits without underwriting during a birthday window

For state-specific rules, check our Medicare Supplement Birthday Rule by State guide.

Rate Increase Patterns

Both Plan G HDHP and Standard Plan G are subject to annual rate increases, but the patterns differ:

Rate Factor	Standard Plan G	Plan G HDHP
Typical annual increase	3–7%	4–8%
Attained-age increases	Higher jumps at age milestones	Similar pattern
Claims impact	High claims pools drive increases	Lower utilization tempers increases
Long-term stability	Well-established rate history	Newer product, less historical data

Because Plan G HDHP has a smaller but growing enrollment pool, rate increases could be more volatile over time. However, the lower starting premium still provides meaningful savings for healthy beneficiaries in the early years.

For a detailed forecast, see our Medigap Premium Trends 2026–2027 Rate Forecast.

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Real-World Example: One Year of Costs

Let’s follow “Margaret,” a 68-year-old retiree in Texas, through a full year on each plan:

Margaret’s Medical Events (2026)

• January: Annual wellness visit ($0 — covered by Medicare)
• March: Specialist visit for knee pain — $280 Medicare-approved
• May: MRI ordered by specialist — $650 Medicare-approved
• July: Follow-up specialist visit — $280 Medicare-approved
• October: Minor outpatient procedure — $3,200 Medicare-approved
• December: Follow-up visit — $280 Medicare-approved

Total Medicare-approved charges: $4,690

Cost Comparison for Margaret

Cost	Standard Plan G	Plan G HDHP
Annual premium	$1,860 ($155/mo)	$780 ($65/mo)
Part B deductible	$257	$257 (counts toward $2,870)
Coinsurance/costs after Part B deductible	$0 (Plan G covers)	$2,613 (to reach $2,870 total)
Additional medical after deductible met	$0	$0 (Plan G HDHP covers)
Total out-of-pocket	$2,117	$3,650
Standard Plan G saves	$1,533	—

Margaret’s moderate medical usage makes Standard Plan G the clear winner by $1,533 for the year.

Now let’s look at “Robert,” a 65-year-old in excellent health:

Robert’s Medical Events (2026)

• February: Annual wellness visit ($0)
• June: Routine dermatology check — $150 Medicare-approved
• November: Minor sick visit — $120 Medicare-approved

Total Medicare-approved charges: $270

Cost Comparison for Robert

Cost	Standard Plan G	Plan G HDHP
Annual premium	$1,740 ($145/mo)	$720 ($60/mo)
Part B deductible	$257	$257
Additional medical costs	$0	$13 (remaining charges)
Total out-of-pocket	$1,997	$990
Plan G HDHP saves	—	$1,007

Robert saves over $1,000 per year with Plan G HDHP because his medical costs are minimal.

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Tax Considerations

Deductible Medical Expenses

The $2,870 Plan G HDHP deductible counts as a medical expense for IRS Schedule A itemized deductions (subject to the 7.5% AGI threshold). If you itemize deductions and have significant medical expenses, the HDHP deductible could provide a tax benefit that further narrows the cost gap with Standard Plan G.

Premium Tax Treatment

Both Standard Plan G and Plan G HDHP premiums are also deductible as medical expenses on Schedule A, subject to the same 7.5% AGI floor. The self-employed may have additional deduction options — see our Medicare Supplement Self-Employed Seniors Guide for details.

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Summary Decision Framework

Use this quick checklist to decide:

Your Situation	Recommended Plan
Excellent health, under 75, minimal doctor visits	Plan G HDHP
Chronic condition requiring regular treatment	Standard Plan G
Budget-conscious, can handle $2,870 risk	Plan G HDHP
Want predictable costs, no surprises	Standard Plan G
Plan to travel internationally frequently	Standard Plan G
HSA-eligible and maximizing tax savings	Plan G HDHP
Concerned about future rate increases	Standard Plan G (larger, more stable pool)
In a high-premium state (NY, CT, MA)	Plan G HDHP (bigger premium gap)

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Frequently Asked Questions

How much is the Medigap Plan G high-deductible amount in 2026?

The Medigap Plan G high-deductible amount for 2026 is $2,870. This is the total you must pay out-of-pocket for Medicare-covered services before Plan G HDHP begins paying benefits. The IRS adjusts this amount annually. Only Medicare-approved charges count toward the deductible — non-covered services like routine dental or vision do not apply.

Can I switch from Plan G high-deductible to Standard Plan G later?

Yes, but outside your Medigap Open Enrollment Period, most states require medical underwriting to switch from Plan G HDHP to Standard Plan G. This means the insurer can review your health history and potentially deny your application. Some states have guaranteed-issue switching windows, such as birthday rule states. Check our Medicare Supplement Switching Rules Checklist for your state’s specific rules.

Does Plan G high-deductible cover the Medicare Part B deductible?

No. Neither Plan G HDHP nor Standard Plan G covers the Medicare Part B deductible ($257 in 2026). The Part B deductible is a separate expense you pay regardless of which Plan G version you choose. However, the $257 Part B deductible does count toward the $2,870 Plan G HDHP annual deductible.

What happens if I never meet the $2,870 Plan G HDHP deductible?

If your annual Medicare-approved medical costs stay below $2,870, you pay all costs out-of-pocket plus your monthly Plan G HDHP premium. The benefit is that your monthly premium is significantly lower than Standard Plan G, so your total annual cost is likely still lower. You essentially self-insure the smaller medical expenses while maintaining catastrophic coverage if something major happens.

Is Plan G high-deductible available in every state?

Yes, Plan G HDHP is available nationwide. However, premium rates vary significantly by state, insurer, and your age/gender/tobacco status. Some states with community rating (like New York) may have different pricing structures. Massachusetts, Minnesota, and Wisconsin have slightly different standardized plan options, but high-deductible Plan G equivalents are still available.

How does Plan G HDHP compare to Medicare Advantage for cost savings?

Plan G HDHP offers lower premiums than Standard Plan G while maintaining the freedom to see any Medicare-accepting doctor nationwide — no networks, no prior authorizations. Medicare Advantage plans may have even lower (or $0) premiums but come with network restrictions, prior authorization requirements, and potentially higher out-of-pocket maximums. For beneficiaries who value provider choice and are in good health, Plan G HDHP can be an excellent middle ground. See our full Medigap vs Medicare Advantage Cost Comparison for a detailed breakdown.

Will my Plan G HDHP premium increase as I age?

Yes. Like all Medigap plans, Plan G HDHP premiums increase over time due to age (if attained-age rated), medical inflation, and claims experience within your plan’s risk pool. Annual increases typically range from 3–8%. Because Plan G HDHP has a smaller enrollment pool than Standard Plan G, rate increases may be slightly more variable. Use our Medicare Supplement Annual Rate Increase Estimator to project future costs.

Does Plan G high-deductible cover foreign travel emergencies?

Yes, but only after you meet the $2,870 annual deductible. Once the deductible is satisfied, Plan G HDHP covers foreign travel emergency care at 80% of the cost up to a $50,000 lifetime maximum — identical to Standard Plan G. If you haven’t met the deductible yet and have a medical emergency abroad, you would pay those costs out-of-pocket up to $2,870 first.

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Next Steps

Ready to decide between Plan G HDHP and Standard Plan G? Here’s what to do:

1. Estimate your annual medical costs: Review your Explanation of Benefits (EOBs) from the past year to project future usage
2. Get personalized premium quotes: Use our Medicare Supplement Plan Cost Estimator to compare real rates in your area
3. Check enrollment timing: Use our Medicare Supplement Open Enrollment Deadline Checker to ensure you’re within a guaranteed-issue window
4. Consult a licensed agent: Get quotes from multiple insurers — Plan G HDHP pricing varies more widely between carriers than Standard Plan G

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Disclaimer: This article is for educational purposes only and does not constitute insurance or financial advice. Medigap plan availability, premiums, and regulations vary by state and insurer. The deductible amounts and premium estimates mentioned are based on 2026 CMS and market data and are subject to change. Always verify information with Medicare.gov and a licensed insurance agent before making enrollment decisions.

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