Costco offers with Mastercard cards
- Live offers
- 4
- Card types
- debit
Few live offers on this pairing, so it is not listed in search yet. Everything below is current.
Costco offers with Mastercard cards
4 live Costco offers accept a Mastercard card, the largest being $45 off.
Not every Mastercard product qualifies — these offers name debit specifically. A debit card usually earns a smaller discount than a credit card on the same offer.
Mastercard card discounts at Costco today
Each shows the cap and minimum spend that decides what you actually save.
Costco Mastercard card offers: common questions
Can I use a Mastercard card for a discount at Costco?
Yes — 4 live offers at Costco apply when you pay with a Mastercard card, as of 29 October 2026. The best of them is $45 off.
How much can I actually save with a Mastercard card here?
None of the current offers state a cap, so the stated discount applies to the full basket — check the terms on each before you pay.
Do Mastercard debit cards get the same discount?
These offers name debit. Where both credit and debit qualify, the debit discount is usually lower — each offer lists its own figure.