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What is a Guaranteed Issue Health Insurance Plan?

A Guaranteed Issue health policy is an insurance plan that legally cannot deny you coverage, regardless of your medical history, age, or gender.

The insurance company is prohibited from asking health questions or looking at your medical records to decide whether to sell you a policy. 

Linda’s Relief

Linda is a small business consultant in Rockwall. She survived a battle with cancer three years ago. When she decided to leave her corporate job to go full-time with her consulting firm, she was terrified. She was worried that she would be unable to find a health insurance plan to cover her due to her pre-existing condition. 

She applied for a plan during the open enrollment period for the health insurance exchange. Due to this, she was protected by guaranteed issue laws. She wasn't asked a single question about her cancer history. The insurance company accepted her application just like everyone else’s. For Linda, this plan was the key to her professional independence.

When is the Door Actually Open?

Guaranteed Issue doesn't mean you can buy insurance the day you get sick. In order to purchase an HMO plan through the health insurance exchange or medicare, you have to pay attention to specific dates and events.

  • Open Enrollment Period (OEP): For most Texans, this happens once a year (usually Nov 1 – Jan 15). During this time, every major medical plan on the exchange is a guaranteed issue plan.
  • Special Enrollment Periods (SEP): If you have a qualifying life event, like losing your job, getting married, or moving to a new county, the door swings open for a short window (usually 60 days).
  • Medicare Supplement (Medigap) Windows: When you first turn 65 and enroll in Medicare Part B, you have a 6-month guaranteed issue window to buy any Medigap plan without being denied for a pre-existing condition. 

Guaranteed Issue Health Insurance

The Two Types of Guaranteed Health Plans in Texas

In 2026, you’ll likely encounter two very different versions of this concept:

  1. Major Medical (ACA Complaint Plans): These are the comprehensive plans that cover everything from hospital stays to prescriptions. They cannot deny you, and they cannot exclude your pre-existing conditions. These plans are either PPO or HMO plans that are available through your employer’s health benefits package or to individuals via the health insurance exchange (marketplace). 
  2. Guaranteed Issue Limited Medical Plans: These are lower-cost plans that protect you in specific situations. They are often disease specific or accident specific plans. They are not designed to provide all of the major medical benefits. 

The Price of the Open Door

It’s important to understand the trade-off. Because insurance companies have to take everyone, including those with high medical costs, the premiums for guaranteed issue major medical plans are generally higher than underwritten plans. You are paying for the certainty that your medical history can not be used against you.

Don't Miss Your Window

Guaranteed issue is your most powerful right as a Texas consumer, but it’s a right with an expiration date. If you need a plan from the marketplace and miss your enrollment window, you might be stuck waiting until the next year for coverage.

Is your enrollment window closing? Don't wait until you have a health crisis to look for the open door. Our personalized risk assessment helps you track your enrollment windows and find a plan that protects your future, regardless of your past.