What Is the Medicare Donut Hole? Understanding the Coverage Gap

If you've heard the term "Medicare donut hole" and wondered what it means for your prescription costs, you're not alone. The coverage gap has been one of Medicare's most confusing—and costly—features. Here's what you need to know, including important changes that took effect in 2025.

!Prescription pills, representing the Medicare Part D coverage gap (donut hole)

What Is the Medicare Donut Hole?

> Beneficiaries could choose from an average of 32 Medicare Advantage prescription-drug plans in 2026 — coverage and the former 'donut hole' vary by plan. (Source: KFF / CMS Landscape, 2026.)

The donut hole, officially called the "coverage gap," is a phase in Medicare Part D coverage where you temporarily pay more for your prescriptions. It's called a "donut hole" because it's a gap in the middle of your coverage—you have coverage before and after, but costs increase in between.

Here's how Part D coverage phases work:

1. Deductible Phase: You pay the full cost of drugs until you meet your deductible (up to $545 in 2025) 2. Initial Coverage Phase: You pay copays or coinsurance while your plan pays most costs 3. Coverage Gap (Donut Hole): Begins when combined spending reaches $5,030—you pay 25% of drug costs 4. Catastrophic Coverage: After $8,000 out-of-pocket, you pay minimal costs for the rest of the year

The 2025 Game-Changer: $2,000 Out-of-Pocket Cap

Starting in 2025, the Inflation Reduction Act fundamentally changed the donut hole's impact. The new $2,000 annual out-of-pocket cap means once you've spent $2,000 on covered drugs, you pay nothing more for the rest of the year.

This is a massive change for people who take expensive medications. Previously, you could spend $8,000 or more before reaching catastrophic coverage. Now, $2,000 is the maximum—regardless of how expensive your medications are.

What This Means in Practice

Before 2025: Someone taking a $1,000/month specialty medication might pay:

• $545 deductible
• $200/month during initial coverage (4 months = $800)
• 25% in the coverage gap until reaching $8,000 out-of-pocket

Starting 2025: The same person pays:

• Up to $2,000 total for the year
• Nothing after reaching the $2,000 cap
• Potential savings of $6,000+ compared to the old system

How to Track Your Donut Hole Status

Your Part D plan sends you an Explanation of Benefits (EOB) after each prescription showing your progress through the coverage phases. You can also:

• Check your plan's online portal or app
• Call your plan's customer service
• Review your Medicare Summary Notice

Key numbers to track:

• Total drug costs (what you and your plan pay combined)
• Your out-of-pocket spending (what you pay)
• Which coverage phase you're in

Strategies to Manage Donut Hole Costs

Even with the $2,000 cap, these strategies help minimize what you pay:

1. Choose the Right Part D Plan

Plans with lower cost-sharing in the coverage gap can reduce your path to the $2,000 cap. Compare plans based on your specific medications.

2. Ask About Generic Alternatives

Generics cost 80-90% less than brand-name drugs. If you're taking expensive brand-name medications, ask your doctor if equally effective generics exist.

3. Use Manufacturer Assistance Programs

Many drug manufacturers offer copay cards or assistance programs that help with costs. These programs can count toward your out-of-pocket spending.

4. Consider Mail-Order Pharmacies

Many plans offer 90-day supplies through mail order at lower per-dose costs than retail pharmacies.

5. Check for Extra Help Eligibility

If you have limited income, Extra Help (Low-Income Subsidy) can eliminate most Part D costs, including coverage gap expenses.

Payment Plans for the $2,000 Cap

Part D plans must offer a Medicare Prescription Payment Plan that lets you spread your $2,000 maximum across monthly payments throughout the year. This helps avoid large upfront costs when filling expensive prescriptions.

Instead of paying $500 for a medication in January, you might pay $167/month over several months. The total is the same, but the cash flow impact is easier to manage.

When the Donut Hole Still Matters

Even with the $2,000 cap, the donut hole affects how quickly you reach that cap:

• High-cost medications push you through phases faster
• Brand-name drugs in the coverage gap still cost 25% of their full price
• Formulary placement affects whether you pay $10 or $100 for the same drug

Choosing a plan that covers your medications favorably—with lower tier placement and preferred pharmacy pricing—reduces your total spending even under the new cap.

The Bottom Line

The Medicare donut hole used to be a significant financial burden for people with high drug costs. The 2025 changes dramatically reduce that burden with the $2,000 out-of-pocket cap.

However, plan choice still matters. The right Part D plan minimizes your costs before you reach the cap and ensures your medications are covered. We can help you compare plans based on your specific prescriptions and find the lowest total cost option.

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Have questions about how the donut hole affects your medications? Get a free Medicare review and we'll calculate your costs under different Part D plans.

Next steps: Take our 2-minute Medicare plan quiz, book a free Medicare review, or see our Medicare costs guide.

We do not offer every plan available in your area. Please contact Medicare.gov or 1-800-MEDICARE to get information on all of your options.