15% Off✦ Verified
15% off
15% Off Storewide at M&M's
90% chance
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Save at M&M's with verified coupon codes, promo codes and exclusive offers.
6
Codes
5
Verified
15% Off
Best Deal
Updated Aug 15, 2026 · 5 verified
Best code right now
15% off
Daily average across every live code, tracked automatically — not a one-time snapshot.
78%
5/6 strong
Verified — confirmed working
15% off
15% Off Storewide at M&M's
15% off
15% Off Bulk Candy at M&M's
Free shipping
Free Shipping On Select Items (Minimum Order: $200) Must at M&M's
10% off
10% Off Storewide at M&M's
More codes — may have expired
15% off
15% Off Storewide (Exclusions Apply) at M&M's
TrulyThrift currently tracks 6 M&M's coupon codes, of which 5 are verified working. The best available discount right now is 15% Off. Page last verified Aug 15, 2026.
Save at M&M's with verified coupon codes, promo codes and exclusive offers.
Visit M&M's ↗| Offer | Discount | Type | Status |
|---|---|---|---|
| 15% off | 15% Off | Percent | Verified |
| 15% off | 15% Off | Percent | Verified |
| 15% off | 15% Off | Percent | Verified |
| Free shipping | Free Shipping | Shipping | Verified |
| 10% off | 10% Off | Percent | Verified |
| 15% off | 15% Off | Percent | Unverified |
Truly Thrift verifies M&M's codes through a three-layer system: automated checkout testing, cross-source corroboration, and real shopper reports. Verified codes show a green badge; other codes show their recent chance of working. Code health is a per-code reliability score built from that evidence — right now the 6 codes listed for M&M's carry an average code health of 78%. Read our full verification process for details across every store.
Direct checkout testing currently covers Shopify storefronts, with more platforms rolling out over time. Until M&M's is covered, Layers 2 and 3 below carry more of the weight for this store's codes.
For codes we can't test directly, we check whether independent coupon listings still show the same code as active. If independent sources agree a code is gone, we downgrade or hide it — even before a shopper reports back.
Every "Worked" / "Failed" button on this page feeds straight into these codes' scores. No shopper reports have come in for M&M's this week yet — yours would be the first.