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State guide

Texas Medicare Supplement Plans

Texas is the second-largest Medicare market in the country and the most varied. Rates differ by metro, Advantage marketing is relentless, and there is no birthday rule. A Texas buyer needs a quote on their own ZIP code and a clear plan for year one.

Figures reviewed for 2026

How premiums are rated
Attained age, with some of the widest rate variation in the country
Your six-month window
Begins the month you are 65 and enrolled in Part B
State regulator
Texas Department of Insurance

What matters

What Medigap costs in Texas

Dallas, Houston, Austin and San Antonio each price differently, and the border counties and rural west run higher with fewer carriers. The same plan letter from the same company can differ by several hundred dollars a year between the metro areas alone.

Attained-age rating is standard, and Texas carriers compete hard on first-year price. That combination produces big increases later, so ask for the approved increase history and the rate at 75. A company with steady modest increases usually beats the cheapest quote.

The rules that decide what you can buy in Texas

Texas follows the federal guaranteed issue rules and has no annual birthday rule. Once your six-month window closes, medical underwriting applies, and a health change can mean a decline or a permanent surcharge for the same coverage.

The federal exceptions matter enormously in Texas because Advantage is so heavily marketed. Leaving an Advantage plan does not restore an unrestricted right to buy a supplement, so the decision to start with one should be made with that in mind.

Who buys Medigap in Texas

Advantage penetration in Texas is above the national average, with extremely heavy enrollment in the Rio Grande Valley, El Paso and rural west Texas. Supplement buyers are concentrated in the suburbs of the four large metros, which keeps that pool large and competitive.

Where to check before you buy in Texas

The Texas Department of Insurance publishes complaint data and rate filings, and SHIP counselors compare plans free of charge through the Health and Human Services Commission. Ask them to compare the same letter across every carrier in your county, then verify the rate with the carrier directly.

Compare Texas quotes with a licensed agent

We quote the carriers filed in Texas against your age, county, tobacco status and household discounts, at no cost to you. Every plan letter is standardized, so the company and the rate history are the real decision.

Other state guides

Rules change at the state line, and so does the carrier list. These are the guides closest to Texas.

See all South and national state guides

Weighing a network plan instead? Read Medicare Advantage plans in Texas and compare what each route would cost you.

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