The savings that Instacart+ members get on Costco Same-Day are changing. As of June 30, 2025, Instacart+ members will save up to 3.5% (previously up to 7%) compared to non-Instacart+ members on every Same-Day order. Instacart+ savings reduce item markups used to pay for Instacart delivery services.
My Take on this update: I’m not quite sure if this is a Costco or Instacart prompted change, but lower cost savings is obviously disappointing for Instacart+ members. It’s also not entirely clear whether this means non-Instacart+ member prices will be lowered ~3.5% or if Instacart+ member prices will be increased ~3.5%. Probably the latter. I’ll be re-running my Costco warehouse vs. Costco Same-Day vs. Costco on Instacart investigative price comparison in an attempt to see how this all shakes out.
I don’t believe that a 3.5% change is a deal killer for shopping at Costco with Instacart when you combine things like discounted Instacart gift cards (which have been found at Costco, Sam’s Club, Best Buy, Amazon, and elsewhere in recent years, the new Chase Instacart credits, and other Instacart offers and store promotions. Which leads me to the 2nd update…
A New Monthly Costco Same Day (or Costco Instacart) Credit for Costco Executive Members
For Costco Executive members, there is also a positive change with a new monthly $10 Costco Same Day or Costco Instacart credit available. Later, in the aforementioned email, Instacart also noted:
Also, starting June 30, 2025, Costco Executive Members will receive a $10 monthly credit for Same-Day delivery orders of $150 or more placed through Sameday.costco.com or Costco via Instacart.
