Kidney failure changes health coverage faster than almost any other diagnosis. Medicare is one of the few federal programs that opens to people of any age because of a single condition: end-stage renal disease (ESRD), meaning permanent kidney failure that requires regular dialysis or a kidney transplant. Medicare eligibility under 65 through ESRD does not require a disability determination or the 24-month Social Security Disability Insurance (SSDI) wait. It requires a diagnosis documented by your dialysis facility or transplant center, plus enough work credits under Social Security or Railroad Retirement for you, your spouse, or your parent. In 2026, the enrollment date decides whether dialysis bills land on you or on Medicare, so timing matters more than almost any other choice you make. The rules below cover when coverage starts, who pays first when you already have insurance, and what Medicare costs in 2026. Every date and dollar figure below follows 2026 rules from Medicare.gov, the Social Security Administration, and CMS.
Most people with ESRD already have some coverage when the diagnosis arrives: an employer plan, COBRA, a Marketplace plan, or Medicaid. Medicare does not replace those plans automatically, and the interaction rules are where costly mistakes happen. An employer group plan pays first for the first 30 months after Medicare eligibility begins. A Marketplace plan loses its premium tax credit once Part A starts, which changes your 1095-A reconciliation. Medicaid can pay your Part B premium through a Medicare Savings Program. This page walks through 7 steps to enroll in 2026, compares your coverage paths, and explains state Medigap rules that apply to people under 65. For the broader under-65 picture, see Medicare with a disability under 65, and check Medicare eligibility if you also qualify by age or SSDI. Verify each date with Social Security, because your dialysis start date is the anchor for everything. Keep every notice you receive from Social Security and your dialysis facility.
7 Steps to Get Coverage
Common Mistakes That Cost People Thousands
Costly mistakes after an ESRD diagnosis usually involve timing and coordination of existing coverage:
- Waiting for Social Security to contact you. No one enrolls you automatically for ESRD Medicare in 2026, so call 1-800-772-1213 in your first month of dialysis.
- Dropping employer coverage the day Medicare starts. The employer plan pays first for 30 months, and dropping it can leave you with 20% coinsurance and no cap.
- Keeping a subsidized Marketplace plan after Part A begins. Premium tax credits end, and you may repay them when you file Form 8962 with your 1095-A.
- Skipping Part B to save the $202.90 premium in 2026. Outpatient dialysis is a Part B benefit, and Medicaid or a Medicare Savings Program may pay the premium.
- Choosing a Medicare Advantage plan without checking the dialysis facility and nephrologist network. Out-of-network dialysis can cost thousands of dollars in 2026.
- Assuming Medicare ends the moment a transplant works. Coverage continues 36 months after a transplant, and a separate immunosuppressive drug benefit can follow.
When ESRD Medicare Coverage Starts in 2026
Medicare coverage for ESRD follows fixed start rules that depend on your treatment type. For in-center dialysis, Medicare Parts A and B begin on the first day of the 4th month of dialysis, so a first treatment on March 10, 2026 produces a June 1, 2026 start. For home dialysis training, coverage starts the first day of the month training begins, as long as you start training before your 3rd month and expect to finish it. For a kidney transplant, coverage starts the month you are admitted to a Medicare-certified hospital for the transplant or for care needed before it, provided the transplant happens within 2 months of admission. If the transplant is delayed beyond 2 months, coverage starts 2 months before the transplant month. Social Security sets the official date using the facility's CMS-2728 form, so confirm the date in writing at medicare.gov or with your local Social Security office.
ESRD Medicare start dates by treatment type, 2026| Treatment | Medicare starts | Example (2026) |
|---|
| In-center dialysis | First day of month 4 | Dialysis starts March 10, 2026; coverage June 1, 2026 |
| Home dialysis training | First day of the training month | Training starts March 2026; coverage March 1, 2026 |
| Kidney transplant | Month of hospital admission | Admitted July 2026; coverage July 1, 2026 |
Dates assume you apply and Social Security accepts the CMS-2728 evidence. Late applications can be backdated up to 12 months for Part A.
Source: Medicare.gov ESRD, Social Security Administration
Employer Coverage, COBRA, and the 30-Month Coordination Period in 2026
Employer group coverage pays first during a 30-month coordination period that begins when you become eligible for Medicare through ESRD, whether or not you enroll. During those 30 months Medicare pays second, covering some costs your employer plan leaves, such as coinsurance. After month 30, Medicare becomes primary and the employer plan pays second, which is why many people keep both. COBRA counts toward the coordination period, and a COBRA election window runs 60 days from the qualifying event. Losing job-based coverage during the coordination period triggers a Marketplace Special Enrollment Period (SEP) with a 60-day window, but an ESRD diagnosis alone is not a qualifying life event for the Marketplace. If you have a Marketplace plan, you can keep it until Part A starts, then cancel it at healthcare.gov and reconcile the 2026 tax credit with your 1095-A. The coordination period restarts if you get a new transplant after Medicare ended.
Medicaid and Medicare Savings Programs for ESRD in 2026
Medicaid often becomes the fastest way to afford ESRD care in 2026. Medicaid is income-gated at 138% of the Federal Poverty Level in the 40 expansion states plus DC, which is $22,025 for one person or $45,540 for a family of 4 in 2026. State programs use local brands: California's Medi-Cal, Arizona's AHCCCS, Massachusetts's MassHealth, Wisconsin's BadgerCare, Connecticut's HUSKY Health, and Tennessee's TennCare. The 10 non-expansion states (Alabama, Florida, Georgia, Kansas, Mississippi, South Carolina, Tennessee, Texas, Wisconsin, Wyoming) have stricter adult limits, but many cover people with disabilities or medical need through other pathways. Medicare Savings Programs, run by your state Medicaid agency and described at medicaid.gov and medicare.gov, can pay your $202.90 Part B premium in 2026. Extra Help lowers Part D costs. Medicaid can also cover the 20% Part B coinsurance as a dual-eligible enrollee, and children with ESRD may qualify for CHIP or Medicaid alongside Medicare. Apply year-round with no deadline.
State Medigap Rules for People Under 65 With ESRD in 2026
Federal law does not require Medigap insurers to sell policies to Medicare enrollees under 65, and ESRD can lead to denial without a state guarantee. KFF counts 31 states that require insurers to offer at least one Medigap policy to enrollees under 65, typically during an initial open enrollment period. Connecticut, Massachusetts, and New York offer continuous guaranteed issue, and Maine offers a one-month annual window. Some other states have added ESRD-specific protections in recent years, so confirm the current rule with your state Department of Insurance before you apply. Federal law gives you a 6-month Medigap open enrollment period when you turn 65 and hold Part B, so a second chance may come later. If Medigap is unavailable, Medicare Advantage offers a capped in-network maximum of up to $9,250 in 2026 and has accepted people with ESRD since January 2021. Compare the plan network for your dialysis facility first.
How Long ESRD Medicare Lasts After a Transplant or When Dialysis Stops in 2026
ESRD Medicare ends on a fixed schedule unless you have another basis for Medicare. Coverage ends 12 months after the month you stop dialysis, and 36 months after the month of a successful kidney transplant. If you return to dialysis or receive another transplant within those windows, coverage continues. If you sign up again after the 36 months, coverage begins right away with no new 3-month wait. After the 36 months, a separate Medicare immunosuppressive drug benefit can cover the anti-rejection medicines you need for life, with a 2026 premium of $121.60 per month and a $283 annual deductible, then 20% coinsurance. This benefit covers only immunosuppressive drugs, so keep other coverage for everything else. Plan ahead 6 months before the 36-month date: compare an employer plan, a Marketplace plan during open enrollment from Nov 1, 2026 to Jan 15, 2027, or Medicaid, and remember that turning 65 or qualifying for SSDI opens standard Medicare.
Frequently Asked Questions
What is the enrollment window for Medicare with ESRD in 2026?
Medicare with ESRD starts the first day of your 4th month of dialysis, so you should apply during your first 3 months. If your first treatment is March 10, 2026, March, April, and May are the waiting months and coverage begins June 1, 2026. Home dialysis training that starts before your 3rd month moves coverage to month 1. Call Social Security at 1-800-772-1213 to submit Form CMS-43. No fixed initial enrollment period applies the way it does at age 65, but delaying Part B can trigger a 10% penalty per full 12-month period, so apply promptly.
What documents do I need to enroll in Medicare with ESRD?
Your dialysis facility or transplant center must file Form CMS-2728, the ESRD Medical Evidence Report, and you submit Form CMS-43 to Social Security. Bring a photo ID, your Social Security number, your dialysis start date, and proof of current coverage such as an employer plan card or COBRA notice. For Medicaid or a Medicare Savings Program, add pay stubs or a tax return. If you had Marketplace coverage, keep your Form 1095-A. Ask the facility social worker to confirm in writing that the CMS-2728 was sent.
What if I miss the ESRD Medicare window?
Missing the first 3 months does not cancel your eligibility, because ESRD Medicare has no closing date the way annual open enrollment does. Part A can generally be backdated up to 12 months, so coverage may still reach back to your original start date. The risk is Part B: a late enrollment penalty of 10% per full 12-month period can apply, and in 2026 the base premium is $202.90 per month. Unpaid dialysis bills from uncovered months are also your responsibility. Call Social Security at 1-800-772-1213 as soon as you notice the gap.
Can I get retroactive coverage after starting dialysis?
Yes, within limits. If you apply late, Social Security can generally backdate Part A up to 12 months before your application month, but not earlier than your ESRD eligibility date, which is the first day of month 4 of dialysis (or month 1 with home training). Kidney transplant coverage can begin up to 2 months before the transplant month if the transplant is delayed. Many states also allow Medicaid retroactive coverage of up to 3 months in 2026, so apply for Medicaid the same week to cover bridge months.
What is the difference between Medicare, COBRA, and Marketplace coverage for ESRD?
Medicare Part B costs $202.90 per month in 2026 plus a $283 deductible and 20% coinsurance. COBRA keeps your employer plan at 102% of the full premium, roughly $400 to $900 per month for an individual in 2026, and counts toward the 30-month coordination period during which the employer plan pays first. A Marketplace plan can bridge the 3-month wait, but premium tax credits end once Part A starts. Most people keep employer coverage as primary for 30 months, add Part B if affordable, and use Medicaid to pay premiums if income is low.
What state-specific rules apply for ESRD Medicare in 2026?
Medicare rules are federal, but Medigap rules for people under 65 vary by state. KFF counts 31 states that require insurers to offer at least one Medigap policy to enrollees under 65. Connecticut, Massachusetts, and New York offer continuous guaranteed issue, and Maine offers one month each year. Massachusetts insurers may not be required to cover people with ESRD, so check with the state insurance department. Medicaid also uses state brands such as Medi-Cal, AHCCCS, MassHealth, and BadgerCare, and each state sets its own Medicare Savings Program limits.
Do I qualify for Medicaid after an ESRD diagnosis in 2026?
In the 40 expansion states plus DC, adults qualify for Medicaid at or below 138% of the Federal Poverty Level, which is $22,025 for one person and $45,540 for a family of 4 in 2026. Many states also offer disability-based or medically needy Medicaid pathways with different rules. Medicare Savings Programs can pay your $202.90 Part B premium in 2026 at higher income limits than full Medicaid. Apply at your state Medicaid agency year-round using the household-size table on this page to check your income line.
What happens to my child's coverage if my child has kidney failure?
A child with ESRD can qualify for Medicare through a parent's work record, with the same 4th-month start for in-center dialysis. Children can also qualify for CHIP or Medicaid, which can cover costs Medicare leaves, and CHIP income limits are often 200% to 300% of FPL in 2026 depending on the state. State brands include Medi-Cal for Kids, AllKids in Illinois, and NJ FamilyCare. Apply to your state CHIP agency in addition to Social Security. A pediatric nephrology social worker can coordinate both applications.
