How the Medicare Prescription Payment Plan Works in 2027
A plain-language guide to paying covered Part D prescription costs over time
The most important point: This program may change when you pay your covered Part D prescription costs, but it does not change your drug coverage or reduce the total amount you owe.
What Is the Medicare Prescription Payment Plan?
The Medicare Prescription Payment Plan is a voluntary payment option offered by every Medicare drug plan and every Medicare Advantage plan that includes drug coverage. It lets members pay their out-of-pocket costs for covered Part D prescriptions through monthly bills from their plan instead of paying those amounts at the pharmacy counter.
You continue paying your regular plan premium separately, if your plan has one.
There is no fee or interest for participating.
The program applies to covered Part D prescriptions. It does not include plan premiums, Part B
drugs or noncovered medications.
How Is the Monthly Bill Calculated?
The cost is not automatically divided into 12 equal payments. Each month, the plan uses a Medicare-required formula based on:
Your remaining unpaid prescription balance
Any new out-of-pocket costs added during the month
The number of months remaining in the calendar year
In plain English: Remaining balance + new covered Part D costs, divided by the months left in the year. Because new costs may be added when prescriptions are filled, the monthly bill can change during the year.
Why Can the Payment Change?
When another prescription or refill adds new out-of-pocket costs, the plan recalculates the amount. Later in the year, fewer months remain to spread those costs across. That means payments may increase, particularly when new costs arise late in the year.
Robin Sisk Mindful Medicare Solutions | 937-766-1965 | [email protected] www.robinsisk.net Sources: Medicare.gov, Medicare Prescription Payment Plan overview, calculation guidance and examples; CMS 2027 Medicare Advantage and Part D Rate Announcement. Information current as of September 2026. Not affiliated with or endorsed by the U.S. government or the federal Medicare program. I do not offer every plan available in your area. Currently, I represent 14 organizations which offer 563 products in your area. Please contact Medicare.gov, 1-800-MEDICARE to get information on all your options.
A Simple 2027 Example
Suppose a member fills a covered prescription in January with a $600 out-of-pocket cost. The confirmed 2027 Part D out-of-pocket threshold is $2,400. Step Calculation Result January maximum $2,400 divided by 12 months $200 January bill The lesser of $600 or $200 $200 Balance remaining $600 minus $200 $400 Following months* $400 divided by 11 months About $36.36 *This assumes no additional out-of-pocket prescription costs are added. If new costs are added, the plan recalculates the monthly payment. The member still pays a total of $600. The program changes the timing of the payments; it does not provide a discount.
Who Is Most Likely to Benefit?
The payment option is generally most helpful for someone who expects high out-of-pocket prescription costs early in the calendar year and would prefer to spread those costs over more months.
It May Be Less Helpful When:
Annual prescription costs are low.
Prescription costs are already about the same each month.
The member enrolls late in the calendar year, especially after September.
The member qualifies for Extra Help, a Medicare Savings Program or another program that may
actually reduce costs.
Important Things to Remember
Participation is voluntary, and members enroll through their Medicare health or drug plan.
Members pay $0 at the pharmacy for covered Part D prescriptions after participation is effective,
but they remain responsible for those costs through the plan’s monthly bill.
Reaching the annual Part D out-of-pocket threshold stops new covered Part D cost sharing, but any
unpaid payment-plan balance must still be paid.
If a member misses a payment, the plan sends a reminder and provides a grace period. Removal
from the payment option does not automatically cancel the underlying Medicare health or drug plan, but the unpaid balance remains due. Questions? Contact your Medicare health or drug plan for a personalized estimate, or visit Medicare.gov/prescription-payment-plan for Medicare’s official calculator and examples.
