Seven hundred dollars is the figure that governs January. That is where the standard Medicare Part D deductible lands on January 1, 2027, up from $615 in the current year, and it is the amount of covered drug spending a beneficiary absorbs before a plan begins paying its share. The increase is $85, and it arrives alongside a second number that moves considerably more.
The standard deductible moves from $615 to $700
The deductible is the first of the annual Part D benefit parameters, and it applies at the front of the plan year. A beneficiary who fills a maintenance prescription every month reaches it early; someone with one or two inexpensive generics may never reach it at all. What changed for 2027 is the height of that first step, not its position.
The number is not a projection. It appears in Table V-2 of the Announcement of Calendar Year 2027 Medicare Advantage Capitation Rates and Part C and Part D Payment Policies, the document that finalizes each year’s Part D benefit design. The same table lists the 2026 deductible at $615 for direct comparison, which is what makes the $85 movement a settled figure rather than an estimate.
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The out-of-pocket threshold rises from $2,100 to $2,400
The second parameter matters more to households with expensive drugs. Table V-2 sets the annual out-of-pocket threshold at $2,400 for 2027, against $2,100 for 2026. That threshold is the ceiling on what a beneficiary pays out of pocket for covered Part D drugs in a calendar year; once it is reached, cost sharing on covered drugs stops for the remainder of the year.
The distance between the two numbers is $300, and it falls entirely on the people who cross the line. A beneficiary whose covered drug costs run past the threshold every year will now spend an additional $300 before protection kicks in, on top of the $85 added at the deductible. Both counters reset on January 1, so a household that finished 2026 above the ceiling starts 2027 back at the beginning of the deductible. Anyone still working from the frequently repeated $2,000 figure is reading a 2025 number that has been superseded twice.
A 13.65 percent index does the arithmetic
Neither figure was chosen by hand. Both the deductible and the out-of-pocket threshold are updated by multiplying the prior year’s amount by the annual percentage increase, and Table V-1 of the same announcement puts the 2027 index at 13.65 percent. That figure is itself built from two pieces: a 9.37 percent annual percentage trend for 2026 and 3.92 percentage points of prior-year revisions.
The gap between that index and general inflation is visible in the same table, which lists the September Consumer Price Index for all items at 3.00 percent for the same period. Part D parameters track drug-benefit costs rather than the broader basket, which is why the deductible is climbing at roughly four times the pace of the index most households recognize.
The base beneficiary premium goes to $41.33
Premiums move on a separate schedule and a separate document. On July 28, 2026, CMS released the annual Part D bid information and set the CY 2027 national average monthly bid amount at $296.05, with the Part D base beneficiary premium at $41.33 and a de minimis amount of $2.
The calculation shown in that notice is $38.99 multiplied by 1.06, which produces $41.33. Under the Inflation Reduction Act’s methodology, the base beneficiary premium may not rise more than 6 percent in a year, so the 2027 figure sits exactly at the statutory ceiling. What an individual actually pays still depends on the plan chosen, since a plan’s premium reflects the difference between its own standardized bid and the national average.
Low-income copays and the retiree drug subsidy move on the same table
Table V-2 also resets the amounts that apply to beneficiaries receiving the low-income subsidy. For full-benefit dual eligible beneficiaries at or below 100 percent of the federal poverty level, the maximum copay on a generic or preferred multi-source drug goes from $1.60 to $1.65, and the copay on other drugs goes from $4.90 to $5.00. For those between 100 and 150 percent of poverty, the same two copays move from $5.10 to $5.80 and from $12.65 to $14.40. The deductible for these categories stays at zero.
A footnote to the table adds one clarification worth keeping in view: every parameter listed there already reflects the additional plan coverage required for covered insulin products and for adult vaccines recommended by the Advisory Committee on Immunization Practices, both of which were added by the Inflation Reduction Act. Employers that keep retirees on their own drug coverage face parallel changes: the retiree drug subsidy cost threshold rises from $615 to $700, and the cost limit from $12,650 to $14,000. All of it flows from the same April 6, 2026 release, which CMS summarized in a fact sheet published the same day. The parameters are final, and they take effect on the first day of the plan year.
This article was produced with AI assistance and reviewed by a human editor. Figures are linked to their primary sources; where a claim could not be verified from the public record, we say so.
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