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2027 Part D Cost Calculator

2027 Medicare Part D costs

Official$700 deductible · $2,400 cap

Your 2027 estimate

You'd pay at most $2,400 for covered drugs in 2027

Add a drug price or your monthly pharmacy cost to see your 2027 costs.

An example 2027

Example
  • At the pharmacy
  • Payment plan bill
  • $2,400 reached
How do you want to estimate?

New here?

Drug 1

Only shown on your screen and printout.

Full price, before insurance.

How often
What's a 90-day supply?

A 3-month fill. Enter the price of the whole 90-day fill. It counts in the month you fill it.

Type
How does the insulin cap work?

Each covered insulin costs at most $35 for each month's supply ($105 for a 90-day fill), or 25% of the price if that is less. No deductible.

For a new drug that starts later in 2027.

My plan charges something different
What do you pay for drug 1 after the deductible?
What's coinsurance?

A percentage of the drug's price you pay after the deductible. Medicare's standard is 25%. A copay is a flat dollar amount instead.

Up to 12 drugs.

$700 is the most allowed in 2027.

What's a deductible?

What you pay for covered drugs before your plan starts sharing the cost. In 2027 no plan's deductible can be more than $700.

Base premium $41.33; real plans vary a lot.

If you join, when would it start?

What's the payment plan?

The Medicare Prescription Payment Plan. Instead of paying at the pharmacy, you get a monthly bill from your plan that spreads your costs over the rest of the year. Same total, no fees or interest.

Saved only in this browser.

Estimate for covered Part D drugs using Medicare's 2027 standard benefit rules.

Your plan's prices, tiers and deductible may differ.

Not medical or insurance advice.

We don't recommend plans.

How to use it

Two ways to estimate, then month by month

Pick how you want to estimate. If you know your drugs' full prices (Medicare Plan Finder and your plan's drug list show them), enter each drug and how often you fill it. If you only know what you usually pay at the counter, choose the pharmacy option and enter that monthly amount.

The calculator then walks through 2027 one month at a time, the way your plan does: first the deductible, then your share of each fill, until you reach the $2,400 cap. You'll see your total, the month you hit the cap, and a 12-month table you can print for yourself or a family member.

The three stages of Part D in 2027

Deductible, your 25% share, the $2,400 cap
  1. Deductible (up to $700). You pay the full price of covered drugs until you've paid your plan's deductible. No plan may charge more than $700 in 2027 ($615 in 2026). Insulin and recommended adult vaccines skip the deductible.
  2. Your share (25%). After the deductible, the standard benefit has you pay 25% of each drug's price. Many plans use copays or other percentages instead; you can enter those under “My plan charges something different.”
  3. The $2,400 cap. Once the amount Medicare counts reaches $2,400, covered Part D drugs cost $0 for the rest of 2027. In 2026 the cap is $2,100.

Insulin is different: each covered insulin costs no more than $35 for a month's supply, with no deductible, and it still counts toward the cap.

The Medicare Prescription Payment Plan

Same total, spread into monthly bills

The payment plan doesn't lower what you owe. It changes when you pay. Instead of paying at the pharmacy, your plan sends you a monthly bill. In the first month the bill can be at most what's left of the $2,400 cap divided by the months left in the year. If you join for January, that's $2,400 ÷ 12 = $200. Anything you don't pay yet rolls into later months, so bills usually rise through the year. There are no fees and no interest.

Example: with one $1,000 brand drug, you'd pay $775 at the pharmacy in January. With the payment plan, January's bill is $200. Your total for the year is $2,400 either way. See the full formula and Medicare's own examples.

What's not included

Extra Help, IRMAA, penalties, plan-specific rules
  • Extra Help (opens in a new tab) (low-income subsidy), the income-related extra amount (IRMAA) and late-enrollment penalties.
  • Drugs your plan doesn't cover, Part B drugs given in a clinic, coupons and pharmacy discounts.
  • Your plan's own mid-year rules, preferred pharmacies and tiers beyond what you enter.

We don't recommend plans. To compare 2027 plans, use Medicare Plan Finder (opens in a new tab). For free, unbiased one-on-one help, contact your state's SHIP counselors (opens in a new tab). This is an estimate, not medical or insurance advice.

Questions

8 answers: the cap, the deductible, insulin, the payment plan

What is the 2027 Part D out-of-pocket cap?

$2,400 for 2027, up from $2,100 in 2026. Once the amount Medicare counts toward your cap reaches $2,400, you pay $0 for covered Part D drugs for the rest of the calendar year.

What's the 2027 Part D deductible?

No Medicare drug plan may have a deductible of more than $700 in 2027 ($615 in 2026). Some plans charge less or no deductible. The deductible never applies to covered insulin or to recommended adult vaccines.

Does insulin count?

Yes. A one-month supply of each covered insulin costs no more than $35 (or 25% of its price if that is less), with no deductible, and what you pay counts toward the $2,400 cap. Recommended adult vaccines cost $0, so you don't need to enter them.

Does the payment plan save money?

No. As Medicare.gov puts it, “it doesn't save you money or lower your drug costs.” The Medicare Prescription Payment Plan spreads what you owe into monthly bills. There are no fees or interest, so your total for the year is the same.

When do I join the payment plan?

You can sign up during Open Enrollment (Oct 15 to Dec 7, 2026) so your bills start in January, or later in the year. Call your plan; the number is on your member card. The later you join, the fewer months are left to spread your costs over.

Why is my bill higher later in the year?

Each month's bill is what you still owe divided by the months left in the year. In January your bill can be at most $2,400 ÷ 12 = $200. Costs you haven't paid yet roll forward, and fewer months are left to share them, so later bills grow. December bills whatever is left.

Do premiums count toward the $2,400?

No. Your monthly premium is separate and does not count toward the out-of-pocket cap. You can add your plan's premium in the calculator to see your full yearly cost.

Is this the same for Medicare Advantage drug coverage?

Yes. The Part D rules ($700 deductible limit and $2,400 cap) also apply to Medicare Advantage plans that include drug coverage. Each plan's own prices and tiers vary.

Sources

Every number comes from Medicare or CMS · checked Oct 8, 2026

Last checked . How we calculate.

  1. CMS: CY 2027 Rate Announcement, Attachment V (Tables V-2, V-6) (opens in a new tab)

    Dated , checked

    Official source

  2. Medicare.gov: How much does Medicare drug coverage cost? (opens in a new tab)

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    Official source

  3. Federal Register: CY 2027 MA & Part D final rule (91 FR 17384) (opens in a new tab)

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    Official source

  4. CMS: TrOOP & Payment Plan cap technical memo (corrected) (opens in a new tab)

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    Official source

  5. CMS: Medicare Prescription Payment Plan Final Part One Guidance, §30 (opens in a new tab)

    Dated , checked

    Official source

  6. CMS: Medicare Prescription Payment Plan page (opens in a new tab)

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    Official source

  7. Medicare.gov: Prescription Payment Plan & examples (opens in a new tab)

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    Official source

  8. CMS: 2027 Part D bid release (base premium $41.33; premium stabilization demo ends) (opens in a new tab)

    Dated , checked

    Official source