Advertiser Disclosure — This site may receive compensation when you click links and apply for credit cards. Compensation may impact which products appear and their placement. We strive to provide accurate information but cannot guarantee all details are current. Full disclosure
Stationery Stores, Office and School Supply Stores
Confirmed via network classification
Quick Answer
W.B. Mason is classified under MCC 5943 (Stationery Stores, Office and School Supply Stores). The best card for W.B. Mason purchases is the Ink Business Cash (no annual fee), earning 5x on stationery stores, office and school supply stores — an effective return of 10.25%.
If you're in the market for office supplies, W.B. Mason is a go-to spot and a great fit for small business credit cards like the American Express Ink Business Cash.
Pro Tip
To maximize your rewards, consider setting up recurring orders for supplies you use regularly and making those purchases with your Ink Business Cash card.
When you pay at W.B. Mason at their locations, your card issuer sees MCC 5943 in the transaction data. This code tells your bank that the purchase was made at a stationery stores, office and school supply stores merchant. Bonus reward rates on your card apply based on this MCC — not the merchant name itself.
If your card earns bonus points on "stationery stores, office and school supply stores" purchases, W.B. Mason transactions will qualify — even if your card terms only mention a category name and not W.B. Mason specifically. The key is that the MCC matches your card's bonus category definition.
You can verify the MCC on any W.B. Mason transaction by checking your card's mobile app or statement. Some issuers display the merchant category alongside the transaction details. For the most accurate information, contact your card issuer's customer service and ask whether MCC 5943 qualifies for bonus rewards.
About MCC 5943: Stationery Stores, Office and School Supply Stores
Merchant Category Code 5943 is assigned by card networks (Visa, Mastercard, Amex, Discover) to classify businesses in the Stationery Stores, Office and School Supply Stores industry. Issuers use MCCs to determine which transactions qualify for bonus reward rates. When a merchant is assigned MCC 5943, all qualifying card programs that include stationery stores, office and school supply stores as a bonus category will apply the elevated earn rate.
The Office Supply industry group encompasses several related MCCs. Not all merchants in a similar business will share the same MCC — for example, a grocery store inside a warehouse club may code as wholesale ({"5300"}) rather than grocery ({"5411"}). Always verify with your issuer if you're unsure whether a specific merchant qualifies for bonus rewards on your card.
Other Stationery Stores, Office and School Supply Stores Merchants (MCC 5943)
Spending $200/month at W.B. Mason with the Ink Business Cash (5x on stationery stores, office and school supply stores) earns approximately $120/year in rewards. A basic 1% card earns $24 on the same spending. That is $96 more per year with no annual fee.
Prefer no annual fee? The Cash Rewards Visa Signature Business earns 3x at W.B. Mason merchants, earning $72/year with no annual fee.
Frequently Asked Questions
What MCC code does W.B. Mason use?
W.B. Mason uses MCC 5943 (Stationery Stores, Office and School Supply Stores). This code is assigned by card networks and determines which bonus reward categories apply when you pay at W.B. Mason.
Which credit card earns the most rewards at W.B. Mason?
The Ink Business Cash earns 5x on stationery stores, office and school supply stores purchases (MCC 5943), making it the highest-earning option at W.B. Mason among the cards we track.
Does my card earn bonus rewards at W.B. Mason?
It depends on your card's bonus categories. If your card earns bonus rewards on stationery stores, office and school supply stores purchases, W.B. Mason transactions (MCC 5943) will typically qualify. Check your card's terms or app, or call your issuer to confirm.
Is W.B. Mason classified as stationery stores, office and school supply stores for credit card purposes?
Yes. W.B. Mason is classified under MCC 5943, which falls in the Stationery Stores, Office and School Supply Stores category. This means cards with stationery stores, office and school supply stores bonus categories will apply the elevated earn rate at W.B. Mason.
What is MCC 5943 and what merchants use it?
MCC 5943 stands for Stationery Stores, Office and School Supply Stores. It is assigned to businesses that primarily operate in office supply stores. Besides W.B. Mason, other merchants in the same MCC include similar businesses in the office_supply industry group.
PointsPick may earn a commission when you apply through our links.
Full disclosure
MCC data based on card network classification standards.
Rankings verified monthly from official card issuer terms.
Last verified: March 16, 2026.
Full methodology: www.pointspick.com/methodology.
