Sometimes cash is cheaper than your insurance
This seems backwards. You pay for insurance every month. You'd expect it to be cheaper than not using it. But the pharmacy benefit management system is designed in ways that frequently make your copay higher than what you'd pay without insurance at all. Here's why and what to do about it.
How pharmacy pricing actually works
When you use insurance at a pharmacy, the transaction goes:
- You present your insurance card
- The pharmacy bills your Pharmacy Benefit Manager (PBM)
- The PBM has negotiated rates with the pharmacy
- You pay your copay
The copay is set by your plan. The negotiated drug cost is separate. In many cases, the negotiated price is actually higher than what the pharmacy would charge a cash customer — because cash customers get the pharmacy's own discounted rates, not the PBM's layered system.
Pharmacies used to be contractually prohibited from telling you the cash price was lower — so-called gag clauses. Two 2018 federal laws banned them: the Patient Right to Know Drug Prices Act (private insurance) and the Know the Lowest Price Act (Medicare). Pharmacists are now free to tell you, but many still won't bring it up on their own. You have to ask.
GoodRx
GoodRx is a discount card (free) that negotiates cash prices at thousands of pharmacies. It's not insurance — it's a coupon system that aggregates negotiated discounts.
For many generic drugs, GoodRx prices are dramatically lower than standard copays:
- Metformin (diabetes): $4–10 with GoodRx vs. $15–45 copay
- Lisinopril (blood pressure): $4–8 vs. $10–30 copay
- Sertraline (antidepressant): $8–15 vs. $20–45 copay
How to use it: Go to GoodRx.com or the app, search your medication and dosage, pick the pharmacy near you with the lowest price, and show the coupon at pickup. Don't run it through your insurance — use the GoodRx coupon instead. You cannot combine them.
Important: GoodRx prices don't count toward your deductible or out-of-pocket maximum. If you're trying to hit your deductible before a planned surgery, it may be worth paying the higher price through insurance.
Mark Cuban's Cost Plus Drugs
Cost Plus Drugs (costplusdrugs.com) is a mail-order pharmacy with a published formula: what it pays the manufacturer, plus a 15% markup, plus a $5 pharmacy fee, plus shipping (from $5.25 per order). No PBM middlemen.
The savings are biggest on generics that are cheap to make but marked up heavily elsewhere — including some specialty drugs. The leukemia drug imatinib (generic Gleevec), which can run into the thousands per month at list price, is the famous example. Because the formula is public, you can look up any drug on its site and see exactly what you'd pay before switching.
It ships by mail and requires a valid prescription. Not every drug is carried — check the site. It's mainly a cash pharmacy, though a growing number of insurance plans and employers now work with it.
$4 generic programs
Walmart and a number of grocery and warehouse-store pharmacies run their own discount generic lists with flat prices (often around $4 for a 30-day supply or $10 for 90 days) on hundreds of common generics. Programs change, so ask your pharmacy what it offers. These don't require a discount card or coupon — just ask the pharmacist.
Useful for straightforward generic prescriptions where cost Plus or GoodRx doesn't apply.
When to use insurance vs. cash
Use insurance when:
- Your drug is not a generic or not available cheaply
- You're trying to meet your deductible before a procedure
- The copay is actually lower than cash alternatives
Use cash/GoodRx/Cost Plus when:
- The copay is higher than the cash price (common for cheap generics)
- You haven't met your deductible and the drug costs more than cash alternatives
- You're uninsured
Always compare before paying. Before you pay a copay, look up the GoodRx price for that drug at that pharmacy. Takes 60 seconds.
What to ask your pharmacist
"What is the cash price for this medication?" "Is there a GoodRx price that's lower?" "Do you have a discount generic program?"
Pharmacists can run your prescription through GoodRx instead of your insurance if you ask. They can tell you the cash price. They can tell you if Cost Plus carries it. They have this information — you just have to ask.
Quick reference
- Always compare: GoodRx price vs. your copay before paying
- GoodRx: Free coupon at pharmacies, often beats copays on generics
- Cost Plus Drugs: Cost + 15% + $5 pharmacy fee + shipping, by mail
- Discount generic lists: Walmart and some grocery pharmacies — ask the pharmacist
- Cash payments don't count toward your deductible — factor this in if you're close to meeting it
- Ask your pharmacist for the cash price — federal law lets them tell you
- Patient Right to Know Drug Prices Act (2018)
- Know the Lowest Price Act (2018)
- Mark Cuban Cost Plus Drug Co.