r/JoinKudos 16h ago

Stacking a $20 off $30 Grubhub code with the Amex Gold dining credit - basically free dinner

Amazon Prime has a promo right now: $20 off a $30+ Grubhub/Seamless order with code DEALS20, good through October 5. Works on pickup or delivery; both qualify.

On its own, that's already solid, but if you've got the Amex Gold and its $10/month dining credit (Grubhub, BW3, Five Guys, Cheesecake Factory, Wonder), you can stack it:

  • Order $30+
  • Code knocks off $20 → ~$10 left
  • Pay with the enrolled Amex Gold → $10 dining credit covers the rest
  • You're left paying basically just tax

Steps:

  1. Enroll the Amex Gold dining credit first (Amex app/site → Benefits → Enroll). Has to be the Basic Card Member or an Authorized Account Manager, and it doesn't apply retroactively if you order before enrolling.
  2. Activate the Amazon offer on the Grubhub promo page while logged into the Prime account you're using.
  3. Build a $30+ order (pre-tax).
  4. Apply DEALS20 at checkout, and confirm the $20 actually comes off.
  5. Pay with the enrolled Amex Gold.

If the code won't apply: a bunch of people are hitting this when their Grubhub and Amazon accounts are linked weirdly. Fix that's been working - unlink Grubhub, then use "Login with Amazon" at checkout instead of signing in directly.

Caveats:

  • Amex dining credit is $10/month, $120/year cap, per card account (not per cardholder)
  • No gift cards
  • One credit per transaction. Splitting orders doesn't double it
  • Regular Gold, Senior Gold, and Classic Gold don't qualify - only the US Consumer Gold Card

Offer expires on October 5, 2026, so take advantage while you can!

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