We’re excited to see the latest Costco January 5th Weekly Insider Deals. This weeks Costco coupons run from January 5th through January 11th. Don’t forget to also look at the January 2026 Costco Coupon Book if you haven’t taken advantage of that sale yet either. If you want to get notified as soon as we release the upcoming Costco February 2026 Coupon Book then make sure to sign up for our email list, follow us on Instagram and Like us on Facebook!

This weeks Costco insider deals are interesting. We just picked up some of the So Good So You Organic Detox shots and are very excited that they have a new everyday lower price of $12.99. We also noticed all of the Kirkland Signature items in this weeks coupons are not discounted, which is a bummer. Lastly, we’ve never seen the Brentwood Sofa Overlay in the store before, so we’ll have to take a closer look at it next time we’re in Costco.

As usual, pricing may vary by location in Alaska, Hawaii, Puerto Rico and online. Some items may not be available in all locations. Either way, based off the ads, what items stand out to you as must buys? Leave a comment and let us know!

Here’s a few of the deals in the Costco January 5th 2026 Weekly Insider Deals:

• Kirkland Signature Conventional Boneless Skinless Breast $2.99 per lb
• Featured Item – Avocados, Haas Variety, Pricing Varies
• Organic Medjool Dates $2 off
• Featured Item – Kirkland Signature Caesar Salad $4.49 per lb
• Kirkland Signature Vanilla Chocolate Chip Muffin, 8-Count $6.99
• Amara Organic Yogurt Smoothie Melts 4ct, 1 oz Bags $12.59 – $3 off = $9.59
• Magic Spoon Fruity Protein Cereal, 8 oz, 2-Count $3 off
• PBfit Organic Peanut Butter Powder, 30 oz $13.99 – $3 off = $10.99
• New Lower Price – So Good So You Organic Immunity and/or Detox Shots, 1.7 oz, 10-Count $12.99
• Ensure Original Nutrition Shake, 8 fl oz, 30-Pack, Vanilla $44.99 – $10 off = $34.99
• and more…