2–3 card stack
The Costco and family household credit card stack (Canada)
Warehouse clubs and grocery banners decide the plastic before earn rates do. Costco Canada takes Mastercard in-warehouse. Pair that with a store-ecosystem card for your main grocer, then one Visa for bills or trips.
By Andrew Card details as of How we review cards
Who this stack is for
- Households with kids and one or two vehicles.
- Regular Costco runs plus a Loblaw-family banner (or Walmart) for the weekly shop.
- Two cardholders who need a stack simple enough that both partners will use it.
Spending profile
Groceries and gas dominate. Illustrative reference households mention around $1,500 a month on groceries plus fuel — replace with your own totals.
Goals
- A lower household bill via cash back or grocery points.
- Cards that actually work at the stores you already visit.
- At most three cards in the shared wallet.
Common friction
- “Best grocery card” lists that ignore acceptance.
- World Elite income tests on a single income.
- A partner who will not carry four cards.
Recommended stack
Annual fees and earn text below are pulled from our live card catalog when this page was built. Confirm every figure on the full review and with the issuer before you apply.
Role: Costco warehouse and Costco gas
CIBC Costco Mastercard
by CIBC
- Annual fee
- $0
- Rewards program
- Cash Back
Earn (from our catalog): 3% cash back at restaurants and at Costco gas. 2% cash back at other gas stations, electric vehicle charging stations and at Costco.ca. 1% cash back on all other purchases including at Costco.
Fit note: Costco warehouses and gas bars take Mastercard only. Amex is not accepted at Costco.
Role: Loblaws-family PC Optimum earner
PC World Elite Mastercard
by PC Financial
- Annual fee
- $0
- Rewards program
- PC Optimum
Earn (from our catalog): PC World Elite Mastercard. No annual fee. Highest PC Financial partner earn rates.
Fit note: Highest PC Financial partner earn tier in our catalog summary — confirm live partner multipliers on the issuer page. World Elite income rules apply.
Role: Bills and supermarket Visa
Scotia Momentum Visa Infinite Card
by Scotiabank
- Annual fee
- $120
- Rewards program
- Cash Back
Earn (from our catalog): Earn 4% Cash Back on grocery and recurring payments Enjoy peace of mind with travel insurance Stay covered with mobile device insurance
Fit note: Use when recurring payments and non-Costco grocery should earn elevated cash back. Infinite income rules apply.
Alternatives and swaps
Use these when income, acceptance, or program preference blocks a recommended card.
Role: Loblaws-family when World Elite income is the blocker
PC World Mastercard
by PC Financial
- Annual fee
- $0
- Rewards program
- PC Optimum
Earn (from our catalog): PC World Mastercard. No annual fee. Higher earn than base PC Mastercard.
Role: Entry PC Optimum Mastercard
PC Mastercard
by PC Financial
- Annual fee
- $0
- Rewards program
- PC Optimum
Earn (from our catalog): Entry PC Financial Mastercard earning PC Optimum points. No annual fee.
Role: $0 bills and category backup instead of a paid Infinite
Tangerine Money-Back Credit Card
by Tangerine
- Annual fee
- $0
- Rewards program
- Cash Back
Earn (from our catalog): 2% cash back in up to 2 chosen categories (3 with a Tangerine savings account deposit of cash back); 0.5% on everything else.
Role: Family travel / no-foreign-fee slot
Scotiabank Passport Visa Infinite Card
by Scotiabank
- Annual fee
- $150
- Rewards program
- Scene+ Points
Earn (from our catalog): No foreign transaction fees. Get six complimentary airport lounge passes. Earn 3x Scene+ points at Sobeys-family grocery stores, 2x on dining, other groceries, entertainment and daily transit, and up to 4x on hotels and …
When this stack is not for you
- You rarely shop Costco or Loblaws-family stores.
- You want a single Amex dining card as the whole strategy — Costco will not take it.
- You carry a balance.
Related guides
Best Credit Cards for Groceries in Canada
Match the card to the banner you already shop. Amex Cobalt and Gold Rewards pay at stand-alone grocers that take Amex; grocery Visas cover the rest; Optimum and Scene+ only pay at their stores.
Read the guideBest Cash Back Credit Cards for Everyday Spending
Pay in full, then pick category cash back if two bills dominate, or a flat rate if spend is scattered. Points only win if you will redeem them like cash.
Read the guideRelated hubs and tools
Related video
The Family Credit Card Stack for Canada: 3 Cards, 3 JobsOn the Canadian Credit Card Finder YouTube channel.
FAQ
Why start with a Mastercard for Costco?
Costco Canada warehouses and gas bars accept Mastercard, not Visa or American Express. The card has to clear the till before any earn rate matters.
Does the PC World Elite earn Optimum at Costco?
The plastic can go through as a Mastercard, but Optimum partner earn is built for Loblaws-family and listed partners — not as a Costco rewards program. Keep Costco spend on the Costco Mastercard.
What if we fail the World Elite income test?
Step down to PC World or the entry PC Mastercard for Optimum, and keep CIBC Costco for the warehouse. Confirm live income wording on each application.
Compare cards for your spend
Use the finder for a short list from the live catalog, then read each full card page before you apply.