How Much Does Mounjaro Cost at Costco? Savings Guide 2026
- This review covers the most current clinical evidence available
- Medication has been studied in multiple large-scale clinical trials
- Always consult your prescribing physician before making changes
How Much Does Mounjaro Cost at Costco? Detailed Savings Guide 2026
As a membership-based warehouse pricing — Mounjaro pricing is a frequent concern for patients managing chronic conditions. Here’s what Mounjaro actually costs at Costco in 2026 — cash price and insured costs.
Cash Price of Mounjaro at Costco
The standard retail price for Mounjaro (tirzepatide) at Costco is $1,000–$1,200 per month for a 30-day supply. This places Costco competitive with industry-standard retail pricing.
Factors affecting your price:
- Prescribed dose — Lower doses like 0.25mg are cheaper than therapeutic doses
- Coverage status — With insurance often owe a fraction of retail
- Discount programs — Can cut your bill by hundreds of dollars
Mounjaro With Insurance at Costco
When you’re with commercial insurance, what you pay at Costco comes down to drug tier placement.
| Tier | Average Copay |
|---|---|
| Tier 2 (Preferred Brand) | $30–$75/month |
| Tier 3 (Non-preferred Brand) | $75–$150/month |
| Tier 4 (Specialty) | $150–$500/month or 25-33% coinsurance |
PA is almost always required no matter pharmacy you use, and Costco.
How to Pay Less at Costco
Eli Lilly Copay Card
The manufacturer has a savings card that can bring monthly costs to $25/month for eligible patients. Eligibility: commercially insured, not on government plans.
GoodRx and Discount Platforms
Free to use prescription discount apps such as GoodRx may offer lower prices on Mounjaro. Always compare across platforms before filling.
PAPs
For patients without coverage and income-qualify, Eli Lilly has Mounjaro free of charge via their PAP.
Costco vs. Alternatives for Mounjaro?
No single pharmacy is always cheapest for Mounjaro. Costco is a reasonable choice but it’s worth price-shop across competitors before committing, especially as prices fluctuate quarterly.
- FDA-approved with extensive clinical data
- Evidence-based treatment option
- Clinically studied in large randomized trials
- Potential side effects (discussed above)
- High out-of-pocket cost without insurance
- Requires ongoing medical supervision