The best current option at My M&M's is the 20% off sitewide promo code shown at the top of this page; it takes 20% off everything on the website and is the right choice if you want a straightforward percent off across personalized M&M's, party favors and bulk candy. This code is a limited time offer and must be entered at checkout, so use it if you need a single simple discount on an order. For certain sale or volume situations the 15% lines on party favors or bulk candy are alternatives to consider.
Very small orders under $10: If you are buying a single small item such as a Best Sellers personalized pack from $2.75 or a gift under $30 priced below $10, the 20% off code still saves the most in dollar terms. For a $8 order, for example, 20% off reduces the price to $6.40, a $1.60 saving. The free shipping threshold of $59 does not help these carts.
Orders $10 to $59.99: Use the 20% off code for the broadest saving on regular priced items and favors. On a $40 order, for example, 20% off reduces the price to $32, a saving of $8. If you are choosing a sale item that already carries a reduced price, the site sale marked 15% off sale items applies only to sale products; compare the final sale price after 15% to the 20% off price because terms on codes often prevent combining.
Orders $59.99 and up: For most carts the 20% off code remains the best single discount. Free standard shipping is available on orders of $59 or more, so factor the shipping saving into your math where relevant; the offer states the $59 threshold but does not say whether it is measured before or after a code. For a $120 order, for example, the 20% code takes the price to $96, a $24 saving, while a 15% code on the same cart would take it to $102, an $18 saving.
Large bulk or party favor orders: Several 15% codes target bulk candy, favors and wedding favors. If My M&M's volume pricing applies to your items, note that some 15% codes say they may not be combined with volume pricing or other promotional offers. The top 20% sitewide code has simpler terms listed on the page and will usually outperform a 15% offer unless the 15% code is the only one allowed by a specific product line or a product is already on a restricted promotion.
Buying sale items or deeply discounted deals: The 15% off sale items deal is restricted to sale products. If an item is on sale, calculate the sale price minus 15% and then compare that total with using the 20% sitewide code on a non sale alternative, because the code terms for sale stacking are not always clear.
Our records put the 20% codes among the biggest percentage codes we have seen for My M&M's; in the 12 months to October 2026 the biggest percentage was 20% and the typical code was 15%. Our team also ran 57 checkout tests across offers in the 12 months to October 2026.
When choosing, work out the total price each way and take whichever leaves the lower final total. Use the 20% off code first for general carts; if a specific 15% favor or bulk code explicitly covers only the item you are buying and the 20% code is excluded by that product line, use the appropriate 15% code.