A smarter way to pay for the stuff you already buy
You don’t need a new side hustle to juice your rewards—you need a better route through the checkout line. One of the highest‑yield paths runs through an unlikely place: office‑supply stores.
Why office‑supply stores matter right now
Several cards treat office‑supply stores as a top bonus category. The standout is the Chase Ink Business Cash, which earns 5% back (as Ultimate Rewards points) on office‑supply purchases and on internet, cable, and phone services, up to $25,000 per account year. That’s a huge lever on spending you can redirect—especially when those stores sell third‑party gift cards to everyday merchants like Shell, Chevron, DoorDash, Instacart, and national grocery chains. [Chase confirms the 5% category and cap on the Ink Business Cash page.] ([creditcards.chase.com](https://creditcards.chase.com/business-credit-cards/ink/cash?utm_source=openai))
Here’s the key: rewards are determined by the merchant category code (MCC) of the place you pay—not the product you buy. A $200 Shell gift card rung up at an office‑supply register still codes as office‑supply. Visa’s Merchant Data Standards Manual delineates MCC 5943 for stationery/office‑supply stores, which is what category‑bonus cards look for. ([studylib.net](https://studylib.net/doc/28075983/visa-merchant-data-standards-manual?utm_source=openai))
The “buy here, use there” play (and the math)
- Step 1: Buy third‑party gift cards (gas, grocery, food delivery, streaming) at an office‑supply store with a 5% card such as Ink Business Cash. A $300 gas card earns 1,500 Ultimate Rewards (UR). If you redeem as cash back, that’s $15. If you pair UR with a Sapphire Preferred/Reserve for transfers, potential value can be higher—but even the straight 5% is excellent. ([creditcards.chase.com](https://creditcards.chase.com/business-credit-cards/ink/cash?utm_source=openai))
- Step 2: Spend those gift cards at the target merchant as you normally would—at the pump, at the grocery checkout, or in the app. You’ve effectively moved non‑bonus spend into a 5% lane without changing what you buy.
- Step 3: Layer a shopping portal when you shop online. Activate cash‑back or miles with a portal before you check out—airline portals like AAdvantage eShopping award miles on tracked purchases, and Rakuten’s browser extension can nudge you to activate cash back with one click. ([aadvantageeshopping.com](https://www.aadvantageeshopping.com/?utm_source=openai))
A realistic stack: buy a $200 Instacart gift card at an office‑supply store (5% = 1,000 UR), then place your grocery order through a portal offering, say, 5% back or 5 miles per dollar (rates vary). Net result: you bank the 5% from the gift card purchase, plus whatever the portal pays—without worrying whether your grocery store codes as a supermarket on your specific card.
Add targeted “Offers” without chasing coupons
Two built‑in programs add easy layers when you’re not using portals:
- Chase Offers: load targeted statement‑credit deals in the Chase app or on chase.com, then pay normally with that Chase card. Credits typically post within 30 days after the qualifying charge. ([chase.com](https://www.chase.com/personal/merchant-offers/faqs?utm_source=openai))
- Amex Offers: similar idea—activate an offer on your Amex card for statement credits or bonus Membership Rewards points when you shop designated merchants. ([americanexpress.com](https://www.americanexpress.com/us/customer-service/faq.amex-offers.html?utm_source=openai))
Practical move: if you see an Amex Offer for a merchant that also sells e‑gift cards on its website, activate the offer, buy the merchant’s own e‑gift card (if terms allow), and use it later. You front‑load the credit while keeping flexibility. Always read each offer’s terms; some exclude gift cards or specify in‑app vs. in‑store purchases. ([americanexpress.com](https://www.americanexpress.com/amex/en-us/benefits/offers/partner-terms/index.shtml?utm_source=openai))
The two‑card everyday combo that punches above its weight
- Ink Business Cash (5% at office‑supply stores up to $25,000 per account year): your engine for third‑party gift cards and tech bills. ([creditcards.chase.com](https://creditcards.chase.com/business-credit-cards/ink/cash?utm_source=openai))
- Citi Custom Cash (5% on your top eligible category each billing cycle, up to $500 in spend): point this at drugstores, home improvement, or transit in a month you’re heavy there; it auto‑adapts. The 5% category list includes restaurants, gas stations, grocery stores, select travel, select transit, select streaming, drugstores, home improvement, fitness clubs, and live entertainment. ([citi.com](https://www.citi.com/usc/Multi/Featured/default.htm?utm_source=openai))
Used together, you can redirect significant household outlay into 5% lanes nearly every month without juggling rotating sign‑ups.
If you’re applying, why now actually matters
- Chase Ink Business Cash: We’re seeing a public welcome offer of $750 bonus cash back after $6,000 in purchases within 3 months from account opening on Chase’s current compare page. That’s effectively a 12.5% kicker on the first $6,000 of spend, before ongoing 5% categories. Terms apply and eligibility rules exist for prior cardholders. ([mychasecreditcards.com](https://www.mychasecreditcards.com/content/jpmc-camoh/ccc-ink/2026/A800-0045.html?utm_source=openai))
- American Express Gold Card: For dining and U.S. supermarkets, the Gold remains a workhorse at 4X points (restaurants worldwide up to $50,000/yr; U.S. supermarkets up to $25,000/yr), with a $325 annual fee. If your grocery and dining spend is steady, pairing Gold for those swipes with Ink Cash for office‑supply gift cards covers a large share of real‑life expenses at strong earn rates. ([americanexpress.com](https://www.americanexpress.com/us/credit-cards/card/gold-card/?intlink=us-en-hp-hero-cta-all-goldhero-03232023&utm_source=openai))
As always, confirm welcome offers you see on issuer pages the day you apply—they can and do change.
Make this automatic with SuperPay
You don’t have to remember which store codes where or whether a portal is worth the click. SuperPay’s Smart Card Picker tells you exactly which card to use at every store—so when you walk into Staples, it pushes you to use Ink Cash for 5%. And when you’re at Kroger with an Amex Gold in your wallet, it surfaces the 4X path for U.S. supermarkets.
Go one level deeper with Category tracking. The app automatically monitors rotating and adaptive bonus categories and flags edge cases (e.g., a pharmacy that codes as “grocery” locally, or an office‑supply branch that miscodes). Pair it with the Receipt Scanner: snap a receipt and see what you earned—and what you could have earned—so you can tweak next week’s run.
Guardrails and gotchas to keep the yield high
- Portals pay based on tracked sessions and exclusions; activate the portal or extension immediately before checkout. Rakuten explains you must start the session with them (or re‑activate) for each separate purchase. ([rakuten.com](https://www.rakuten.com/help/article/how-rakuten-works?utm_source=openai))
- Not every portal pays on gift cards. Airline portals like AAdvantage eShopping disclose store‑by‑store terms—check before you click. ([aadvantageeshopping.com](https://www.aadvantageeshopping.com/?utm_source=openai))
- Category rewards are based on MCC. Most office‑supply chains code as MCC 5943, but if a location miscoded, your bonus could differ. The Visa Merchant Data Standards Manual defines these categories; your results always follow the merchant’s MCC at the time of purchase. ([studylib.net](https://studylib.net/doc/28075983/visa-merchant-data-standards-manual?utm_source=openai))
Your next move
Set up the stack: pick up an Ink Business Cash for 5% office‑supply runs, use Amex Gold for dining and U.S. supermarkets, and let Citi Custom Cash auto‑dial 5% where your month is heaviest. Then let SuperPay call the plays in real time.
Download SuperPay on the App Store and start optimizing your rewards today.