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A one-time Part B rebate is arriving for some people with Original Medicare. CMS explains eligibility and how to verify payment status.

What CMS announced for October 2026

In a fact sheet dated October 3, 2026, the Centers for Medicare & Medicaid Services (CMS) confirmed a one-time $90 rebate intended to offset part of the October 2026 Medicare Part B premium for certain beneficiaries. CMS estimates that about 20.8 million people with Original Medicare Part B are eligible.

This is a confirmed, one-time payment for 2026—not a proposed 2027 benefit, a recurring monthly discount, or a change to every beneficiary's Part B premium.

Who may qualify?

CMS identifies beneficiaries in Original Medicare Part B who live in the United States as the group being considered. Its published eligibility description also addresses whether Medicaid helps pay a person's Part B premium and whether the person pays an income-related monthly adjustment amount (IRMAA).

Important: CMS specifically states that people enrolled in Medicare Advantage are not eligible for this rebate. If you receive Medicaid assistance with premiums, pay IRMAA, or are unsure whether you qualify, ask Medicare to confirm your individual eligibility rather than relying on an assumption.

To check eligibility, call 1-800-MEDICARE (1-800-633-4227). This is the official number listed in the CMS rebate FAQ.

When and how is the $90 being paid?

CMS says most eligible beneficiaries were scheduled to receive a $90 direct deposit on or around October 8, 2026. Others who do not receive direct deposit are expected to receive a paper check from the U.S. Treasury later in October, using the mailing address registered with Medicare.

CMS also says beneficiaries may receive a related letter or email in mid-October. Medicare.gov describes the official one-time rebate letter and tells recipients to look for a deposit or Treasury check.

If you have not received a payment yet: the paper-check schedule means a missing deposit on October 12 does not by itself prove that you are ineligible. CMS says beneficiaries can call the Social Security Administration at 1-800-772-1213 beginning October 15, 2026 to check payment status. Medicare can answer eligibility questions now at 1-800-MEDICARE.

Protect your information while checking the rebate

A payment announcement can create an opportunity for impersonation scams. Medicare.gov warns that you should not give your Medicare number or other personal information to someone who unexpectedly calls, emails, or approaches you. Do not share bank details or pay a processing fee in response to an unsolicited message about this rebate.

For questions, use the official numbers above or type the official Medicare.gov or CMS.gov address directly into your browser. You do not need to change Medicare plans to receive the rebate.

Does this change your 2027 Medicare plan review?

No. This one-time October 2026 rebate is separate from the plan premiums, formularies, provider networks and other coverage details you should compare for 2027. Medicare Open Enrollment begins October 15 and runs through December 7, 2026; changes generally take effect January 1, 2027. Medicare.gov explains the enrollment period and how plan changes work.

If you are comparing Original Medicare, Medicare Advantage, prescription drug plans or Medicare Supplement coverage, evaluate the complete costs and benefits for your situation. A one-time rebate should not drive a long-term coverage decision.

The Medicare Minute takeaway: CMS has confirmed a one-time $90 Part B rebate for certain people in Original Medicare. Most direct deposits were expected around October 8, while checks may arrive later in October. Verify eligibility with Medicare, check payment status with Social Security beginning October 15, and keep your 2027 plan review separate from this one-time payment.
Educational information only. This article summarizes CMS and Medicare.gov guidance available as of October 12, 2026. Eligibility and payment details are determined by federal agencies, not Medicare Advisors. This article is not legal, financial or medical advice. Plan availability, benefits, costs and enrollment rules vary by individual circumstances. Medicare Advisors is not connected with or endorsed by the federal Medicare program.