Medicare Supplement Birthday Rule States: What Agents Need to Know in 2026

Medicare Supplement Birthday Rules continue to spread across the country, creating more annual opportunities for eligible Medigap policyholders to change coverage without medical underwriting.

As of August 2026, 15 states have an active Birthday Rule or comparable birthday-based Medicare Supplement switching protection:

• California
• Delaware
• Idaho
• Illinois
• Indiana
• Kentucky
• Louisiana
• Maryland
• Nevada
• Oklahoma
• Oregon
• Utah
• Virginia
• West Virginia
• Wyoming

And the landscape is still changing.

New Mexico has enacted a Birthday Rule scheduled to take effect January 1, 2027. Meanwhile, states such as Minnesota have adopted broader annual Medicare Supplement enrollment protections that are not technically Birthday Rules.

For independent Medicare agents, these rules create more than another compliance detail. They can provide an annual reason to review existing clients, revisit prospects who may have had underwriting challenges, compare current premiums, and identify legitimate Medicare Supplement switching opportunities.

What Is the Medicare Supplement Birthday Rule?

A Medicare Supplement Birthday Rule is a state-level guaranteed-issue protection that gives eligible existing Medigap policyholders an annual period around their birthday to change qualifying Medicare Supplement coverage without traditional medical underwriting.

There is no nationwide federal Birthday Rule.

Under federal law, the best time for most people to buy Medicare Supplement coverage is during their one-time Medigap Open Enrollment Period.

Medicare.gov explains that the six-month Medigap Open Enrollment Period generally begins the first month someone is 65 or older and enrolled in Medicare Part B.

After that period ends, a beneficiary's ability to buy or change a Medigap policy may be limited unless a federal guaranteed-issue right or additional state protection applies.

Medicare.gov specifically advises beneficiaries to check their State Insurance Department for additional Medigap rights under state law.

That's where Birthday Rules become important.

Which States Have a Medicare Supplement Birthday Rule?

The 2026 Birthday Rule landscape includes the following states:

Important: The rules are not interchangeable.

Carrier restrictions, eligible plan changes, benefit-level requirements, timing, continuous-coverage requirements, and application procedures vary by state.

Agents should verify the applicable state law and current carrier guidance before telling a client that a replacement qualifies for guaranteed issue.

Recent Birthday Rule Changes Agents Should Know

Several states have joined or expanded the Birthday Rule trend since this article was originally published.

That means older state lists can quickly become unreliable.

Delaware: New protections in 2026

Delaware's Medicare Supplement Birthday Rule is now in effect.

According to the Delaware Department of Insurance, the state's special enrollment period begins 30 days before the policyholder's birthday and lasts for at least 30 days afterward.

During the applicable window, eligible policyholders may switch to a Medigap policy with the same or lesser benefits without medical underwriting.

Delaware also permits qualifying changes involving another carrier, making this an important annual shopping opportunity for agents and policyholders.

Indiana: Birthday Rule effective January 1, 2026

Indiana's new Medigap Birthday Rule took effect January 1, 2026.

The Indiana State Health Insurance Assistance Program confirms that HEA 1226 created the new annual protection.

Agents writing Medicare Supplement business in Indiana should review the current Indiana requirements before submitting a replacement because plan and application conditions still apply.

Virginia: Birthday Rule effective July 1, 2025

Virginia's Medigap Birthday Rule became effective July 1, 2025.

The Virginia State Corporation Commission says insurers must provide a 60-day open enrollment period beginning on the enrollee's birthday.

During the applicable period, an eligible policyholder may switch to a Medigap policy with the same benefits offered by another insurer in Virginia without being denied because of health status.

Virginia also cautions policyholders not to cancel their existing Medigap coverage until the replacement policy has been issued and becomes effective.

Wyoming: Birthday Rule implemented in 2025

Wyoming implemented its Medicare Supplement Birthday Rule in 2025.

According to the Wyoming Department of Insurance, eligible Medicare Supplement policyholders can evaluate alternative coverage beginning on their birthday and continuing for 63 days, without medical underwriting.

This is another example of why agents should revisit older Medigap prospecting assumptions.

A client who previously could not comfortably pass medical underwriting may now have a legitimate annual switching opportunity.

West Virginia: One of the newest additions

West Virginia created a new guaranteed-issue Medicare Supplement switching opportunity in 2026.

According to the West Virginia Offices of the Insurance Commissioner, the application period begins on the first day of the individual's birthday month and continues for 60 days.

West Virginia's rule also contains an important distinction from many other states: a 24-month continuous-coverage requirement generally applies.

The replacement policy must generally be issued by the existing insurer or an affiliated insurer and provide the same or lesser standardized benefits, subject to the specific provisions of the law.

Agents should verify those conditions carefully before presenting a West Virginia case as guaranteed issue.

New Mexico Joins the Trend in 2027

New Mexico is the next major Birthday Rule development agents should have on their calendars.

Governor Michelle Lujan Grisham signed Senate Bill 21 in March 2026.

According to the New Mexico Aging and Long-Term Services Department, the law creates a 60-day annual enrollment period beginning with the beneficiary's birthday month.

Eligible policyholders will be able to move to Medicare Supplement coverage with equal or lesser value without medical underwriting.

The new protections take effect January 1, 2027.

For agents serving New Mexico clients, that creates a clear opportunity to prepare CRM workflows and client education before the first eligible enrollment windows arrive.

How Existing Birthday Rule States Work

Several states have had Birthday Rules in place for years, but their requirements still differ.

California

California has one of the best-known Medicare Supplement Birthday Rules.

The California Department of Insurance says existing Medigap policyholders receive 60 days of open enrollment following their birthday in which they can purchase a new Medicare Supplement policy without medical screening or a new waiting period.

The replacement policy must have the same or lesser benefits.

Idaho

Idaho provides an annual 63-day guaranteed-issue period beginning on the policyholder's birthday.

The Idaho Department of Insurance explains that policyholders can change their Medicare Supplement plan or insurance company during the eligible window, subject to applicable benefit requirements.

Kentucky

Kentucky law provides eligible existing Medicare Supplement policyholders an annual opportunity to change insurers within 60 days of their birthday while maintaining the same Medicare Supplement plan.

Agents can review the applicable Kentucky Medicare Supplement statute for the specific requirements.

Maryland

Maryland's Birthday Rule has been in effect since July 1, 2023.

The Maryland Insurance Administration says the annual open enrollment period includes the policyholder's birthday and the 30 days following the birthday.

Eligible policyholders may select qualifying coverage with equal or lesser benefits without traditional medical underwriting.

Oregon

Oregon's Birthday Rule begins 30 days before the policyholder's birthday and continues for 30 days afterward.

Under Oregon's Medicare Supplement requirements, an eligible policyholder may replace current Medicare Supplement coverage with a policy providing the same or lesser benefits.

Utah

Utah now requires insurers to offer an annual election period that begins on the insured's birthday and ends 60 days later.

During that period, the insurer generally may not use health status to underwrite the eligible change.

Agents can review the Utah Insurance Department's current Medicare Supplement rule for details.

Birthday Rules Are Not the Only State Medigap Opportunity

One of the most important additions to this article is what happens outside traditional Birthday Rule states.

Agents should not assume:

No Birthday Rule = medical underwriting is always required.

Some states provide different annual or continuous Medicare Supplement protections.

Minnesota's New Annual Medigap Open Enrollment

Minnesota is an important example in 2026.

The state created an annual Medicare Supplement open enrollment period that was delayed and is scheduled to begin in August 2026.

According to the Minnesota Department of Commerce, the annual period provides eligible Medicare beneficiaries an opportunity to purchase marketed Medicare Supplement coverage or change Medicare Supplement insurers and plans without medical underwriting.

This is not a Birthday Rule.

That's an important distinction because an agent who tracks only birthdays could overlook other state-level guaranteed-issue opportunities.

Minnesota also has specific rating and eligibility provisions, so agents should review current state and carrier guidance before submitting a case.

Federal Guaranteed-Issue Rights Still Come First

Birthday Rules supplement federal Medigap protections; they do not replace them.

Before applying a Birthday Rule, determine whether the client already has a federal guaranteed-issue right.

Medicare.gov describes guaranteed-issue rights as situations in which an insurance company cannot deny an eligible person a Medigap policy.

These protections can arise in specific circumstances involving changes or loss of existing coverage.

Agents should verify the client's exact circumstances, dates, notices, and policy choices before assuming a federal guaranteed-issue right applies.

Medicare Open Enrollment Is Not Medigap Open Enrollment

Another common source of confusion is the annual October 15 through December 7 Medicare Open Enrollment Period.

That period allows beneficiaries to make certain Medicare Advantage and Part D changes.

It does not create a general federal right to switch Medicare Supplement policies every fall.

Medicare.gov explains that most people do not have a federal right to switch Medigap policies unless they are still within their six-month Medigap Open Enrollment Period or qualify for a guaranteed-issue right.

State Birthday Rules and other state protections are separate opportunities.

How Agents Can Turn Birthday Rules Into an Annual Client Strategy

Birthday Rules create a natural recurring service opportunity.

Instead of waiting for a client to call after receiving a rate increase or competitor advertisement, agents can build annual Medicare Supplement reviews into their workflow.

1. Track the right dates in your CRM

For each Medicare Supplement client, consider tracking:

• Birthday.
• State of residence.
• Current carrier.
• Current Medigap plan.
• Policy effective date.
• Applicable Birthday Rule window.
• Policy anniversary when relevant.
• Current premium.
• Date of the last coverage review.

Set reminders before the client's eligible window begins.

This is especially important in states where the application window begins before the birthday.

2. Review the client's current policy before shopping

A Birthday Rule is not an automatic reason to replace coverage.

Start by reviewing:

• Current premium.
• Recent premium changes.
• Existing carrier.
• Current plan letter.
• Client satisfaction.
• Available alternatives.
• State restrictions on allowable plan changes.

Sometimes the right recommendation is to keep the existing policy.

The value is in performing the review.

3. Verify which plan changes the state permits

This is one of the biggest traps for agents.

Some states permit a move only to the same standardized plan.

Others permit plans with equal or lesser benefits.

Some restrict which insurer may issue the replacement.

Never assume a client on Plan G can move to any other Medigap product simply because the state has a Birthday Rule.

Agents comparing common coverage options can also review PSM's Medicare Supplement Plan N guide.

4. Confirm carrier participation and current rates

Guaranteed issue does not necessarily mean every insurer, policy, or rate is available to every applicant.

Verify:

• Carrier availability.
• State approval.
• Eligible plan.
• Effective date.
• Current premium.
• Application process.
• Required proof of existing coverage.

5. Don't terminate the existing policy too early

Make sure replacement coverage has been properly issued and the effective date is understood before an existing Medicare Supplement policy is terminated.

This is particularly important when a client is relying on a state guaranteed-issue protection.

6. Document the reason for the replacement

Maintain good records showing:

• Why the client reviewed coverage.
• Which state rule was used.
• Plans considered.
• Premium differences.
• Relevant restrictions.
• Client decision.

Good documentation supports a more consistent sales and service process.

Birthday Rules Can Create Prospecting Opportunities Too

Birthday Rule states are not only useful for existing clients.

They can open conversations with Medicare Supplement policyholders who previously believed they were unable to change coverage because of their health history.

Educational outreach could focus on:

• Annual Medicare Supplement reviews.
• Birthday Rule reminders.
• Premium-change reviews.
• Plan G and Plan N comparisons.
• Clients who previously failed underwriting.
• Referrals from current Medigap clients.

The message should remain educational.

Avoid suggesting that every client will qualify for a lower premium or that every policy can be replaced without underwriting.

Connect Birthday Rules With Your Underwriting Strategy

The rapid growth of Birthday Rules also changes how agents should think about Medicare Supplement underwriting.

Medical underwriting should not automatically be the first question.

Use this sequence:

1. Check the federal Medigap Open Enrollment Period.
2. Check federal guaranteed-issue rights.
3. Check the client's state for a Birthday Rule.
4. Check for anniversary-based or other annual state protections.
5. Confirm the eligible carrier and plan options.
6. Use medical underwriting only when required.
7. Then evaluate current carrier underwriting opportunities.

This matters because underwriting itself is also evolving.

Some carriers are experimenting with additional ways of evaluating applicants who might not qualify under traditional standard-rate underwriting.

Agents interested in expanding their carrier portfolio can explore PSM's Medicare solutions for insurance agents and Mutual of Omaha Medicare Supplement resources.

A Simple Birthday Rule Checklist for Agents

Before submitting a Medicare Supplement replacement under a state Birthday Rule:

• Confirm the client's current state of residence.
• Verify the state rule is currently effective.
• Confirm the client's birthday and applicable enrollment dates.
• Verify how long the existing policy has been in force if required.
• Confirm the current Medigap plan.
• Determine which replacement plans are permitted.
• Determine whether changing carriers is permitted.
• Verify the new carrier participates in the applicable market.
• Confirm current rates.
• Gather required proof of existing coverage.
• Submit within the correct enrollment period.
• Document the guaranteed-issue basis.
• Confirm the new policy effective date.
• Do not terminate the existing policy prematurely.

Frequently Asked Questions About Medicare Supplement Birthday Rules

Does every state have a Medicare Supplement Birthday Rule?

No.

Birthday Rules are state-level protections, and only certain states have adopted them.

Other states may provide different Medigap guaranteed-issue opportunities, so agents should review the broader state rules rather than checking only for a Birthday Rule.

Does a Birthday Rule mean a client can switch to any Medigap plan?

Not necessarily.

Some states restrict replacements to the same standardized plan. Others allow policies with equal or lesser benefits. Carrier restrictions can also apply.

Always verify the specific state's requirements.

Does a Birthday Rule allow someone to switch without medical underwriting?

For an eligible replacement that satisfies the state's requirements, Birthday Rules generally provide guaranteed-issue protection that prevents traditional health underwriting from being used to deny the qualifying change.

The exact protection depends on state law.

Can a client change carriers under a Birthday Rule?

It depends on the state.

Some Birthday Rules permit a change to another insurer, while others limit the replacement to the current company or an affiliated insurer.

Is the Medicare Birthday Rule the same as Medicare Open Enrollment?

No.

The federal Medicare Open Enrollment Period runs annually from October 15 through December 7 and primarily concerns Medicare Advantage and Medicare Part D choices.

A Medigap Birthday Rule is a separate state-level protection for qualifying Medicare Supplement policyholders.

Is New Mexico a Birthday Rule state yet?

New Mexico enacted a Medicare Supplement Birthday Rule in 2026, but the new protections are scheduled to become effective January 1, 2027.

Agents should prepare for the change while verifying implementation guidance before the first enrollment periods begin.

The Bigger Opportunity: Build State Rules Into Your Medicare Supplement Process

Birthday Rules are no longer a niche feature limited to a handful of states.

As more states adopt guaranteed-issue switching protections—and others create annual Medigap opportunities using different models—agents need a repeatable way to identify them.

Instead of memorizing a list once a year, build this sequence into every Medicare Supplement review:

State → enrollment right → eligible dates → current plan → allowed replacement → carrier → effective date.

Then verify the current requirements before submitting business.

That process can help agents uncover legitimate opportunities while reducing the risk of putting a client through unnecessary medical underwriting.

Stay Current on Medicare Supplement Opportunities With PSM

PSM Brokerage supports independent insurance agents with Medicare Supplement product access, contracting assistance, training, technology, marketing resources, and experienced support.

Explore PSM's Medicare solutions for insurance agents, read the Medicare Supplement Plan N agent guide, or review PSM's Mutual of Omaha Medicare Supplement resources.

As Birthday Rules, annual enrollment protections, and carrier underwriting opportunities continue to evolve, staying current can help agents recognize more legitimate ways to serve their Medicare Supplement clients.

For agent education only. Medicare Supplement enrollment rights, Birthday Rules, guaranteed-issue protections, carrier participation, plan eligibility, rating rules, and enrollment windows vary by state and may change. Verify current requirements with the applicable carrier and state insurance regulator before advising a client. Federal Medigap rights should be verified through Medicare.gov. Last reviewed August 13, 2026.