Medicare Birthday Rule by State
In 15 states, your birthday gives you a guaranteed window to switch Medicare Supplement plans — no health questions, no underwriting. Here's every state's rules for 2026.
What Is the Medicare Birthday Rule?
The Medicare Birthday Rule is a state-level consumer protection law that gives Medicare Supplement (Medigap) policyholders a guaranteed-issue window each year around their birthday. During this window, you can switch to a plan with equal or lesser benefits from another carrier — without answering health questions or going through medical underwriting.
Outside of your initial Medicare enrollment period, insurers can normally deny your Medigap application or charge you more based on your health history. The Birthday Rule removes that barrier once a year, giving you real leverage to shop for lower premiums.
How much can you save?
Medigap premiums for the same plan letter can vary by 30–50% between carriers in the same ZIP code. Using your Birthday Rule window to switch to a lower-cost carrier with identical coverage is one of the most effective ways to reduce your Medicare costs.
Use our free rate calculator to compare plans in your areaStates with a Medicare Birthday Rule (2026)
As of 2026, these 15 states have enacted some form of birthday-related guaranteed issue protection for Medigap policyholders.
| State | Window | Rule Details | Effective |
|---|---|---|---|
| California | 60 days | Window begins on your birthday. Switch to same or lesser benefits with any carrier. | Established |
| Delaware | 60 days | 30 days before through 30 days after your birthday. Same or lesser benefits. | New 2026 |
| Idaho | 63 days | Birthday window. Same or lesser benefits. | Established |
| Illinois | 45 days | Generally ages 65–75. Same or lesser benefits, usually with the same insurer or an affiliate. | Established |
| Indiana | 60 days | Switch to the same plan letter with any carrier. | New 2026 |
| Kentucky | 60 days | Same plan letter with any carrier. | Established |
| Louisiana | 63 days | Same or lesser benefits, generally with the same insurer or an affiliate. | Established |
| Maryland | 30 days | Same or lesser benefits. | Established |
| Nevada | 61 days | Window begins on the first day of your birth month. Same or lesser benefits. | Established |
| Oklahoma | 60 days | Same or lesser benefits. | Established |
| Oregon | 60 days | 30 days before and 30 days after your birthday. Same or lesser benefits. | Established |
| Utah | 60 days | Similar or lesser benefits, generally with the same insurer. | Established |
| Virginia | 60 days | Same plan letter with any carrier. | Established |
| West Virginia | 60 days | Same or lesser benefits. | New June 11, 2026 |
| Wyoming | 63 days | Same or lesser benefits. | Established |
60 days window
Window begins on your birthday. Switch to same or lesser benefits with any carrier.
60 days window
30 days before through 30 days after your birthday. Same or lesser benefits.
63 days window
Birthday window. Same or lesser benefits.
45 days window
Generally ages 65–75. Same or lesser benefits, usually with the same insurer or an affiliate.
60 days window
Switch to the same plan letter with any carrier.
60 days window
Same plan letter with any carrier.
63 days window
Same or lesser benefits, generally with the same insurer or an affiliate.
30 days window
Same or lesser benefits.
61 days window
Window begins on the first day of your birth month. Same or lesser benefits.
60 days window
Same or lesser benefits.
60 days window
30 days before and 30 days after your birthday. Same or lesser benefits.
60 days window
Similar or lesser benefits, generally with the same insurer.
60 days window
Same plan letter with any carrier.
60 days window
Same or lesser benefits.
63 days window
Same or lesser benefits.
How to Use Your Birthday Rule Window
Know your window
Mark your birthday on your calendar. Your window opens on (or near) your birthday — the exact start date varies by state. Don't wait until the last minute.
Compare rates
Use our free rate calculator to see what other carriers charge for the same plan letter in your ZIP code. Savings of $30–$80/month are common.
Apply and switch
Apply with the new carrier before your window closes. Coverage is guaranteed — no health questions. Your new plan starts the following month.
See What You Can Save With Your Birthday Rule
Compare Medicare Supplement rates from top carriers in your ZIP code — free, no obligation.
Compare Rates NowKey Rules to Know
Same or lesser benefits only
You can switch to a plan with equal or lesser coverage. You cannot use the Birthday Rule to upgrade to a higher-benefit plan.
No medical underwriting
Carriers cannot ask health questions or deny your application during the guaranteed-issue window. Pre-existing conditions do not matter.
Carrier rules vary by state
Some states let you switch to any carrier. Others require you to stay with the same insurer or an affiliate. Check your state's column above.
Window timing matters
Missing your window means waiting another year. Mark your calendar and start comparing rates 4–6 weeks before your birthday.
Part D is separate
The Birthday Rule applies to Medicare Supplement (Medigap) plans only — not Medicare Advantage or Part D drug plans, which have their own enrollment rules.
New states added in 2026
Delaware, Indiana, and West Virginia all enacted birthday rule protections effective 2026. More states are considering similar legislation.
Frequently Asked Questions
What is the Medicare Birthday Rule?
The Medicare Birthday Rule is a state-level consumer protection that gives Medicare Supplement (Medigap) policyholders a guaranteed-issue window each year around their birthday to switch to a plan with equal or lesser benefits — without medical underwriting. This means insurers cannot deny you or charge you more based on your health history during that window.
Does the Birthday Rule apply in every state?
No. As of 2026, 15 states have enacted some form of a birthday rule or birthday-related guaranteed issue protection: California, Delaware, Idaho, Illinois, Indiana, Kentucky, Louisiana, Maryland, Nevada, Oklahoma, Oregon, Utah, Virginia, West Virginia, and Wyoming. If you live in another state, you generally need to qualify medically to switch Medigap plans outside of your initial enrollment period.
Can I switch to a higher-benefit plan using the Birthday Rule?
No. The Birthday Rule only allows you to switch to a plan with the same or lesser benefits. For example, if you have Plan G you can switch to another Plan G or to Plan N (lesser benefits), but you cannot use the Birthday Rule to upgrade to a plan with more coverage.
Can I switch carriers during the Birthday Rule window?
It depends on your state. States like California, Kentucky, Indiana, and Virginia allow you to switch to any carrier. Others like Illinois, Louisiana, and Utah generally require you to stay with the same insurer or an affiliate. Check your state's specific rules in the table above.
How much can I save by using the Birthday Rule?
Savings vary widely by state, age, and carrier. In competitive markets like California and Oregon, seniors commonly save $30–$80/month by shopping during their birthday window. Over a year that's $360–$960 in savings — with identical coverage. Use our rate calculator to see current rates in your area.
What if I live in Florida — does it have a Birthday Rule?
Florida does not have a Birthday Rule for Medicare Supplement plans. If you live in Florida, switching Medigap plans outside of your initial 6-month Medigap Open Enrollment Period generally requires passing medical underwriting, unless you qualify for a specific federal guaranteed-issue situation.
Ready to Use Your Birthday Rule Window?
A licensed Medicare broker can compare every carrier in your state during your birthday window — at no cost to you. Brokers are paid by the insurance company, not by you.
We do not offer every plan available in your area. Any information we provide is limited to those plans we do offer in your area. Please contact Medicare.gov or 1-800-MEDICARE (TTY: 1-877-486-2048) to get information on all of your options.
Not affiliated with or endorsed by the U.S. government or the federal Medicare program. This is an advertisement for insurance. William Gray and affiliated licensed agents are independent insurance agents, not government employees or representatives. Medicare has neither reviewed nor endorsed this information.
Not all plans or types of coverage may be available in your area. Plan availability, benefits, and premiums vary by county and ZIP code. Enrollment in any plan depends on contract renewal. Benefits, premiums, and cost-sharing may change on January 1 of each year.
Independent Agent & Compensation Disclosure. William Gray is an independent licensed insurance agent (FL License #W690237) and is not employed by or exclusively affiliated with any single insurance company. William is compensated by insurance carriers when you enroll in a plan. This compensation does not affect the premium you pay — your premium is the same whether you enroll through a broker or directly with the carrier. Affiliated agents are independent contractors solely responsible for their own conduct and representations.