Quick answer
Yes. Nearly every health plan covers insulin as a prescription drug, including marketplace plans, job-based plans, Medicaid and Medicare. What you pay depends on the plan. Medicare caps insulin at $35 a month, 29 states and DC cap copays in state-regulated plans, and the three big insulin makers have programs that hold many people’s costs to $35 a month.
Key takeaways
- Insulin is covered as a prescription drug under ACA plans, but each plan decides which brands are on its drug list.
- With Medicare, you pay no more than $35 for a month’s supply of each covered insulin, and the deductible doesn’t apply.
- 29 states and DC cap insulin copays in state-regulated plans, mostly at $25 to $35 a month. Self-insured employer plans don’t have to follow these laws.
- High-deductible plans are allowed to cover insulin before you meet the deductible.
- No ACA plan can turn you down or charge you more because you have diabetes.
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How insurance covers insulin
Prescription drugs are one of the ACA’s essential health benefits, so marketplace and small-employer plans have to cover them, and large employer plans almost always do. Insulin is covered like other drugs: it sits on the plan’s formulary, or drug list, at a certain tier, and you pay the deductible, copay or coinsurance for that tier.
A few things decide your cost:
- The drug list. Plans usually prefer certain insulin brands. A non-preferred brand can cost more or need prior approval.
- The deductible. On some plans you pay the full price until you meet the deductible, which can mean a big bill in January.
- Copay or coinsurance. A flat copay is predictable. Coinsurance is a percentage of the drug’s price, so it can be much higher.
- Your state. State copay caps apply to plans the state regulates.
Check the drug list before you choose a plan. Does health insurance cover prescription drugs explains formularies and tiers, and the difference between bronze, silver, gold and platinum plans shows how the plan level changes what you pay.
Medicare’s $35 insulin cap
If you have Medicare, you pay no more than $35 for a one-month supply of each insulin your Part D plan covers, and the deductible doesn’t apply. The same cap covers insulin used with a pump under Part B. Part D also limits total yearly out-of-pocket drug costs, to $2,100 in 2026 and $2,400 in 2027.
See who is eligible for Medicare. Medicaid covers insulin in every state too, usually with a small copay or none.
State copay caps
29 states and Washington, DC, limit what state-regulated plans can charge for insulin. The caps range from $0 in New York to $100 in a few states, and most fall between $25 and $35 for a month’s supply. These laws don’t reach self-insured employer plans, which many large companies use, so ask your employer or insurer which rules apply to you.
If insulin still costs too much
- Ask about manufacturer programs. Eli Lilly, Novo Nordisk and Sanofi each run programs that cap monthly costs at $35 for many people with commercial insurance or no insurance.
- Ask about a covered alternative. Your doctor may be able to switch you to a preferred brand or a lower-cost biosimilar, or request a formulary exception from your plan.
- Pay with pre-tax money. An HSA or FSA covers insulin and diabetes supplies. See what is an HSA.
- Compare plans at open enrollment. A plan with a flat insulin copay can cost less over a year than one with a lower premium.
- Try a community health center. Health centers charge on a sliding scale and can often help uninsured patients get insulin for less.
Getting coverage when you have diabetes
Diabetes used to make it hard to buy a policy. Under the ACA, marketplace and job-based plans can’t refuse you, charge you more or exclude diabetes care because of a pre-existing condition. See getting health insurance with pre-existing conditions and can I get health insurance if I have diabetes. When you compare insurers, look at drug lists and networks as well as premiums; our guide to the best health insurance companies can help.
Comparing plans for next year? See plans and prices in your ZIP code.
Frequently asked questions
Is insulin covered before I meet my deductible?
It depends on the plan. Many plans charge a copay right away, but some make you pay the full price until the deductible is met. Since 2023, HSA-eligible high-deductible plans have been allowed to cover insulin before the deductible, and Medicare’s $35 cap applies with no deductible.
Does the $35 cap apply to private insurance?
Not nationwide. The federal $35 cap is for Medicare. For private plans, it depends on your state’s law and whether your employer’s plan is self-insured, though manufacturer programs may bring your cost down to $35.
Are insulin pumps and supplies covered?
Usually, either as durable medical equipment or through the pharmacy benefit, with your plan’s normal cost-sharing. Coverage for continuous glucose monitors varies by plan.
Can I buy insulin without insurance?
Yes. Some older human insulins are sold without a prescription at pharmacies, and manufacturer programs can bring many newer insulins down to $35 a month. Ask your doctor which option is safe for you, because older insulins work differently from newer ones.
Sources
This article is general information, not medical or insurance advice. Talk with your doctor before changing insulin, and check your plan’s drug list for your exact costs. Last reviewed September 2026.