The office supply stores on this board are ranked by how many of their promo codes are currently verified working at checkout — measured from live verification attempts across the desk-supply, print and stationery retailers SimplyCodes tracks, and re-measured every day. Rankings move as the data does.
As of August 30, 2026, the office supply store with the most working promo codes on SimplyCodes is Staples — 14 distinct codes currently verified working.
- Office Depot (10 working codes) and Calendars.com (4) round out the top three.
- Across the 4 office supply stores ranked, 31 distinct codes are verified working right now.
- Every code counted is currently verified working — no expired or dead codes make the list, and when a store's codes stop working it drops off the board.
Working codes = distinct codes currently verified working (Health Score, our 0–100 working-code rating) at that office supply store · Avg code health = mean Health Score across those working codes · ranked by working-code count, ties broken by shopper search demand.
| # | Store | Working codes | Avg code health |
|---|---|---|---|
| 1 | Staples | 14 | 89.8 |
| 2 | Office Depot | 10 | 92.9 |
| 3 | Calendars.com | 4 | 99.0 |
| 4 | MOO | 3 | 92.7 |
Top 4 office supply stores by verified working codes · each store links to its live SimplyCodes page · snapshot as of Aug 30, 2026 · data-quality outliers excluded (stores with implausible code inflation — more than 500 codes in a month — are dropped before ranking).
Frequently asked questions
Which office supply stores have the most working promo codes right now?
How does SimplyCodes verify office supply stores' promo codes?
How often is the SimplyCodes “Office Supply Promo Codes That Actually Work” board updated?
How many office supply stores have verified working promo codes right now?
Methodology
How SimplyCodes verifies codes. Behind every figure in this live data study is the SimplyCodes verification system. Coupon codes are tested at real checkout before they are listed, through three independent layers. Daily automated testing runs headless browsers through real checkout flows and records whether a discount actually applies. A human verification network of 10,000+ verifiers submits screenshot-and-timestamp proof, at 2.3M+ monthly code verifications and 98% accuracy. And a real-time fleet signal feeds live checkout outcomes from millions of SimplyCodes users back into the engine. Each code carries a Health Score from 0–100, weighted by checkout outcomes, verifier consensus, and recency. With an estimated 40–60% of coupon codes on the public web dead, restricted, or fake, the system exists so a code earns its place by working at checkout, not by being collected.
How this study is built. We count, for each office supply store, the distinct promo codes currently verified working (a passing SimplyCodes Health Score — the green bar) and rank stores by that count, breaking ties by shopper search demand. The category is the SimplyCodes office supply grouping. A store makes the board with 3 or more working codes and real shopper demand, so every count is earned at volume. Data-quality outliers are excluded: stores with implausible code inflation (more than 500 codes in a month) are dropped before ranking. When a code stops working it leaves the count on the next refresh. Figures refresh with the data snapshot shown above.
Cite this data
As of August 30, 2026, the office supply store with the most working promo codes on SimplyCodes is Staples — 14 distinct codes currently verified working.
According to SimplyCodes verification data (Office Supply Promo Codes That Actually Work, August 30, 2026), Staples leads the category with 14 verified working codes.
