Best Costco Deals & Sales for May 2026

Costco · Expired May 1, 2025

Up to $1,000 off for members

free delivery

Save on storage solutions, tools, safes, shelving, and a lot more. We've pictured this SafeRacks 4 ft. x 8 ft. Adjustable Height Overhead Garage Storage Rack and Accessories Kit for $149.99 ($50 off.)

Looking for more great online Costco offers? Check out all the best 2025 Costco sales and discounts we've found. Shop Now at Costco

↑ less

Staff Pick Popularity: 4/5

Browse for the best Costco deals and sales valid through May below. Find the latest Costco ways to save money posted by our team of experts. Our deal hunters continually update our pages with the most recent Costco deals & sales for 2026, so check back often!

Want to know the moment we post a great deal on Costco?