Direct answer: Costco does not publish one nationwide checkout price for Zepbound. Costco says its member-program prices can vary by location and change without notice. Current Lilly programs can put an eligible 28-day Zepbound supply as low as $25 with qualifying commercial coverage or start a KwikPen self-pay purchase at $299, but the exact amount depends on the device, dose, insurance result, and program eligibility.
Price paths that can be verified now
| Purchase path | What the current source supports | What to verify |
|---|---|---|
| Insurance claim at Costco | The plan determines coverage, deductible, copay or coinsurance, and network rules | Exact Zepbound device, dose, NDC, prior approval, and Costco network status |
| Costco Member Prescription Program | A member discount program, not insurance; displayed prices may vary by location and change without notice | Current local price and whether using CMPP is better than submitting insurance |
| Lilly single-dose pen savings card | Current terms say eligible commercially insured patients with coverage may pay as little as $25; patients with commercial insurance but no coverage may pay as low as $499 | Coverage result, approved-use prescription, device, program limits, and current terms |
| Lilly KwikPen self-pay | Current terms list $299 for 2.5 mg, $399 for 5 mg, and a $449 purchase offer for 7.5 mg through 15 mg when offer conditions are met | Cash-only card eligibility, dose, refill timing, taxes or fees, and pharmacy processing |
These are different payment routes. They should not be added together or described as one Costco price. Costco states that claims submitted to private insurance or publicly funded programs are not eligible for its member discount program.
Do you need a Costco membership?
No membership is required to purchase a prescription from Costco Pharmacy online or at a warehouse. Costco says the pharmacy is available to members and nonmembers. Membership does matter for the Costco Member Prescription Program, which offers member-only discount pricing.
That distinction replaces claims that nonmembers must pay a fixed percentage markup on Zepbound. Costco's published customer-service guidance says prescription drugs are exempt from its general online nonmember surcharge. The local pharmacy should provide the current prescription quote.
What the 2026 Lilly prices mean
Lilly announced in March 2026 that KwikPen self-pay access would be available through LillyDirect and major pharmacies nationwide, starting at $299 per month for the 2.5 mg dose. Its current terms define one month as 28 days and one single-patient-use KwikPen.
See transparent compounded pricing
Review compounded GLP-1 pricing and what provider-reviewed care includes, with no surprises at checkout.
Try the Cost Calculator →The current KwikPen self-pay terms list regular 28-day prices of $299 for 2.5 mg, $399 for 5 mg, $499 for 7.5 mg, and $699 for 10 mg, 12.5 mg, or 15 mg. A separate purchase offer lowers 7.5 mg through 15 mg to $449 when its conditions are met, including completing the next purchase within 45 days. Lilly can change or end these terms, so an old screenshot is not a current quote.
How to verify the exact Costco cost
- Confirm whether the prescription is for the single-dose pens or the single-patient-use KwikPen and record the dose and NDC.
- Ask the local Costco Pharmacy to quote the prescription for the intended pickup date and confirm stock.
- If using insurance, ask Costco to run the claim and report the rejection reason, deductible, copay or coinsurance, and network status.
- Check the current Lilly eligibility page for the exact device and coverage situation; do not rely on a 2025 card.
- Compare the insurance result, Costco member price, and eligible Lilly route separately. Ask whether a payment will count toward the plan deductible or out-of-pocket maximum.
Claims this page does not make
- It does not publish an invented national Costco cash-price range.
- It does not claim Costco is always cheaper than another pharmacy.
- It does not assume a membership is required to fill a prescription.
- It does not assume a savings card can be combined with insurance, CMPP, or another discount.
- It does not promise that every Costco location has the prescribed device or dose in stock.
Frequently asked questions
How much is Zepbound at Costco without insurance?
There is no single nationwide Costco answer. Ask the local pharmacy for the exact device and dose, then separately check Lilly's current KwikPen self-pay terms and Costco member price.
Can a nonmember fill Zepbound at Costco?
Yes. Costco says membership is not required to purchase prescriptions, although member-only discount pricing requires a membership.
Does Costco accept the Zepbound savings card?
Ask the local pharmacy to confirm current processing for the exact Lilly card. Eligibility and savings are controlled by Lilly's current terms, not by this page.
Is $299 the price for every dose?
No. The current $299 self-pay amount applies to a 28-day 2.5 mg KwikPen purchase under the program terms. Other doses have different regular prices and may have a time-limited purchase offer.
Primary sources
- Costco, Zepbound Member Prescription Program price lookup and limitations
- Costco, pharmacy membership requirement
- Lilly, current Zepbound savings and self-pay terms
- Lilly, March 2026 KwikPen pharmacy self-pay announcement
- FDA, current Zepbound prescribing information
Evidence and program terms reviewed August 3, 2026. Prices, eligibility, stock, and program terms can change; verify them before each fill.
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