Help paying for cancer drugs

Cancer drugs can be among the most costly parts of treatment. If the price of a drug worries you, you're not alone, and you have options. Many people get help, and there are limits on what most plans can make you pay.

This guide walks through those limits and the programs that can help. It's part of our guide to cancer treatment bills. To check the bills themselves, see our guides to your chemotherapy bill and your radiation therapy bill.

Which part of your coverage pays for your drug?

Most coverage splits cancer drugs into 2 groups. Knowing which group your drug is in tells you which limits and programs apply.

There are exceptions. Part B covers some cancer drugs you take by mouth, if the same drug comes in a form given by IV or shot. Part B also covers anti-nausea pills you take within 48 hours of chemotherapy. Private plans vary, so check your plan documents or call member services.

Why this happens: what drives your cost

A few things decide what you pay for a cancer drug.

• The drug's price. Many cancer drugs cost thousands of dollars per dose.
• Coinsurance. If you pay a percent of the price, a costly drug means a large share.
• Which benefit pays. Part B and Part D have different rules and limits.
• Your yearly limit. Once you reach it, your costs for covered care stop for the year.
• Your plan's rules. Your plan may need to approve the drug first, or want you to try another drug first.

What limits your costs?

Here's how the yearly limits work in 2026.

• Medicare drug coverage (Part D). Your plan's deductible can't be more than $615. After that, you usually pay 25% until you've paid $2,100 for covered drugs. Then you pay nothing more for covered Part D drugs for the rest of the year.
• Medicare Part B. After the $283 deductible, you usually pay 20% of the approved amount. Original Medicare has no yearly limit. A Medigap policy can pay some or all of your share.
• Medicare Advantage. Each plan sets a yearly limit for covered in-network care.
• Most private plans. In-network costs for covered care are capped at up to $10,600 for 1 person or $21,200 for a family. Premiums and out-of-network care don't count.

Spreading Part D costs over the year

The Medicare Prescription Payment Plan lets you pay your Part D drug costs in monthly bills instead of at the pharmacy. It doesn't lower the total. It's free, and every Medicare drug plan offers it. You can join anytime by calling your plan.

It helps most when your costs are high early in the year. It may not help if your costs are low, the same each month, or start late in the year. If you get Extra Help, you likely don't need it.

Say Linda has a Medicare drug plan with a $615 deductible, then 25% coinsurance. Her first fill of a new cancer drug in January costs $8,000.

Her share would be the $615 deductible plus 25% of the other $7,385. That's $615 + $1,846.25 = $2,461.25. But the yearly limit is $2,100, so that's the most she pays.

How she pays	January	February to December	Total for the year
At the pharmacy	$2,100	$0	$2,100
With the payment plan	$175	$175 a month	$2,100

With the payment plan, her January bill is $2,100 ÷ 12 months = $175. Each later bill is what's left divided by the months left. In February, that's $1,925 ÷ 11 = $175. She pays the same total either way.

Where to find help paying

If your costs are still too high, these programs can help. Your cancer center's financial counselor or social worker can help you apply.

1. Drug company programs. Many drug companies give their drugs at no cost to people who qualify by income. Some of these programs serve people with Medicare. When they do, the free drug is usually given outside your Part D plan. It doesn't count toward your $2,100 limit.
2. Copay cards, if you have private insurance. These cards pay part of your share for a brand-name drug. Ask your plan whether that help counts toward your deductible and yearly limit. Our guide to copay cards, accumulators, and maximizers explains how plans count it.
3. Independent nonprofit foundations. Some charities help with drug costs for people with a certain type of cancer. They can help people with Medicare, too. Each one sets its own rules on income and which costs it covers.
4. Extra Help, for people with Medicare. This Medicare program helps people with limited income and savings pay Part D costs. You can apply through Social Security.
5. Hospital financial assistance. Nonprofit hospitals must have a written financial assistance policy. It can cover drugs given at a hospital clinic. See our guide to hospital charity care.

Why copay cards usually can't be used with Medicare

Federal anti-kickback law bars rewards that steer people toward drugs paid for by federal programs. The Office of Inspector General (OIG) has said drug company copay cards raise this concern for Medicare drugs. That's why most cards say they can't be used with Medicare or other federal programs. The OIG has said drug companies can donate to independent charities instead.

What to do: steps to lower your drug costs

1. Find out which benefit covers your drug. Ask your care team whether it's billed to your medical or drug coverage.
2. Check your yearly limit. Your plan's app or website shows how much you've paid so far.
3. Meet the financial counselor. Ask them to check your coverage and look for programs before treatment starts.
4. Ask about lower-cost options. Ask your oncologist whether a generic or biosimilar fits your treatment. The U.S. Food and Drug Administration (FDA) says a biosimilar has no clinically meaningful differences from the original drug. Never switch drugs on your own.
5. Ask about the pharmacy. Some plans require a certain specialty pharmacy. Using the right one keeps your costs in network.
6. Apply early. Program funds and approvals can take time. Ask for help as soon as you know your treatment plan.

If your plan denies a drug, your doctor can ask for an exception or file an appeal. See prior authorization denied.

When to get help

You don't have to sort out drug costs alone. It's worth getting help when:

• You can't afford your next fill or infusion. Tell your care team before you miss a dose.
• Your plan denied a drug, or wants you to try a different one first.
• You're not sure which programs fit your coverage.

Start with your cancer center's financial counselor or social worker. For Medicare, call 1-800-MEDICARE (1-800-633-4227), or get free counseling from your State Health Insurance Assistance Program. Your insurer's member services number is on your card.

Patient Advocate Foundation, a nonprofit, offers free case management for people with serious illness. A medical bill advocate can make calls for you. If other bills are piling up, see our guide for when you can't afford medical bills.