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Medicare Prescription Payment Plan: Pay Drug Costs Monthly

This free option does not lower what you owe for drugs, but it can turn big pharmacy bills into smaller monthly payments.

Last reviewed October 30, 2026 · Figures from SSA.gov and CMS.gov

$0Cost to join
$0Paid at pharmacy once enrolled
$2,1002026 Part D cap, unchanged by the plan
6%Of Part D enrollees CMS expects could benefit

How it works

The Medicare Prescription Payment Plan is a voluntary option that every Medicare drug plan must offer. After you opt in, you pay $0 at the pharmacy for covered Part D drugs, and your plan bills you each month for the cost sharing you owe, spread over the rest of the calendar year. There are no fees and no interest.

What it does and does not do

It doesIt does not
Spread your out-of-pocket drug costs into monthly billsLower the price of your drugs
Cost nothing to joinChange your plan's premium or the $2,100 annual cap
Work with any Part D plan or Medicare Advantage plan with drug coverageCarry over automatically if you switch to a different plan (you opt in again)

Who may benefit

People with high drug costs, especially at the start of the year when deductibles and early fills are large, such as someone taking a costly brand-name drug. If your drugs cost little each month, the plan may not change much.

How to sign up

  1. Contact your Part D plan (the number is on your card) or sign in to the plan's website. You sign up with the plan, not at the pharmacy.
  2. You can opt in at any time during the year, but the earlier you join, the more months your costs are spread over.
  3. If you opted in last year and stay in the same plan, your plan renews you automatically. If you change plans, opt in again.

A simple example

If you start the year and your first fill costs you $600 out of pocket, joining early could mean about $50 a month for that fill rather than $600 at the counter. The same fill later in the year would be spread over fewer months, so the monthly amount is larger.

It is not a discount. You still owe the full cost sharing, up to the annual cap. If your monthly bill goes unpaid, your plan may remove you from the payment plan or from the drug plan, so only join if you can make the monthly payments.
Your annual cap is separate. See Part D 2027 for next year's cap and deductible, and Extra Help if your income is limited.

Related guides

Official sources