Medicare Plan G 2027 Rates: What to Expect & How to Save

Among all Medicare Supplement (Medigap) plans available today, Plan G has become the undisputed top choice for new Medicare enrollees — and its dominance is only expected to grow heading into 2027. Searches for “Medicare Plan G 2027” have surged as seniors begin planning their coverage decisions months ahead of open enrollment. Whether you are approaching 65, already enrolled in Plan G, or reconsidering your current coverage, understanding what Plan G will cost in 2027 and how to lock in the best rate is one of the highest-value financial decisions you can make. Here is everything you need to know.

What Does Medicare Plan G Cover?

Medicare Supplement Plan G is federally standardized — every insurer selling Plan G must offer identical benefits regardless of the premium they charge. The coverage never changes between companies, only the price does.

The one item Plan G does not cover is the Part B annual deductible — currently $283 in 2026. Once you pay that $283, Plan G covers virtually all other Medicare-approved costs for the rest of the year. For most seniors, this results in near-zero out-of-pocket medical costs beyond the monthly premium and that one annual deductible payment.

Medicare Plan G 2027: What to Expect for Premiums

While CMS will not announce official 2027 Medigap rates until late fall 2026, based on current actuarial trends and insurer rate filings, here is what experts project for Plan G premiums in 2027:

• New enrollee at 65 (national average): $130–$175/month (a modest 4–7% increase from 2026)
• Age 70: $155–$220/month (attained-age rated plans increase annually with age)
• Age 75: $185–$260/month
• High Deductible Plan G: $35–$65/month (but requires meeting a $2,950+ deductible first)

Premiums vary dramatically by state, ZIP code, gender, tobacco use, and the insurer’s rating method. Two identical Plan G policies from different companies in the same ZIP code can differ by $80–$100/month for the same age — comparison shopping is not optional, it is essential.

The 3 Rating Methods That Determine How Plan G Premiums Grow

1. Community-Rated

Everyone pays the same premium regardless of age. Premiums increase only due to inflation and claims experience, not your birthday. Best long-term value for most seniors. Mandatory in New York, Connecticut, and Massachusetts.

2. Issue-Age-Rated

Your premium is set based on your age when you first enroll and does not increase as you get older — only general inflation drives future increases. A good option in states where available; locks in a relatively stable premium if you enroll at 65.

3. Attained-Age-Rated (Most Common)

Your premium increases each year as you age, in addition to general rate increases. Most Plan G policies sold nationally use this method. While premiums may start low at 65, they can become quite expensive by 75–80. Strategically shopping for the lowest-cost insurer every few years is essential to avoid overpaying.

Plan G vs. High-Deductible Plan G for 2027

The High Deductible Plan G requires you to pay a deductible of approximately $2,950 before benefits kick in. Monthly premiums are dramatically lower — often $35–$65 vs. $130–$175 for standard Plan G. Best for: relatively healthy seniors who want catastrophic protection but expect lower routine medical utilization. Annual premium savings of $900–$1,500 often offset the higher deductible for healthy seniors. However, if you have multiple chronic conditions requiring frequent specialist visits or procedures, standard Plan G may save money overall.

Medicare Plan G vs. Plan N for 2027: Quick Comparison

5 Strategies to Get the Best Plan G Rate for 2027

1. Enroll during your Medigap Open Enrollment Period (OEP) — the 6-month window starting the month you turn 65 and enroll in Part B. During OEP, no insurer can deny you or charge more due to health conditions. This is your single most valuable protection.
2. Compare multiple insurers in your ZIP code — use Medicare.gov’s Medigap Plan Finder or work with an independent Medicare broker (free to you) to see all available premiums side by side.
3. Consider the insurer’s rate increase history — not just the current premium. An insurer with below-average annual increases is worth a higher starting premium.
4. Check for household discounts — many insurers offer 5–12% discounts when two household members each enroll with them.
5. Re-shop every 2–3 years if healthy — in most states, you can switch Plan G policies if you pass medical underwriting. Healthy seniors can often reduce premiums significantly by switching insurers.

2027 Medicare Open Enrollment: Key Dates

The Annual Enrollment Period (AEP) for Medicare Advantage and Part D plans runs October 15 – December 7, 2026 for coverage beginning January 1, 2027. Medigap plans do not have a universal annual open enrollment — your individual OEP window at 65 is the primary protection. After that, switching requires medical underwriting in most states (exceptions: NY, CT, MA).

Related Articles You May Find Helpful

• Best Medigap Plans 2026: Which Medicare Supplement Saves Most?
• Medicare Part B Premium Hits $202.90 in 2026 — What Every Senior Must Do Now
• Medicare IRMAA 2026: How to Reduce Your High-Income Surcharge
• Medicare 2027 Changes: 9 Major Updates Every Senior Must Prepare For Now
• Medicare Advantage vs. Original Medicare 2026: Which Is Right for You?

Sources

• Medicare.gov — Medigap Information
• Centers for Medicare & Medicaid Services (CMS)
• Social Security Administration — Medicare Enrollment