Costco Coupon Book September 2025. 20, the february edition of the costco coupon book is valid wednesday, jan. The costco coupon book is a monthly publication by costco wholesale corporation, featuring a compilation of discounts, deals, and special offers available exclusively to costco.

This months tire coupon is once again michelin, with the usual $40 off a set $899.99 or less and $60 off a set $900 or more. If you’ve purchased this product in the past 60 days, costco will price match and return you the difference.