The best prices usually come from layering several savings at once: a sale price, a coupon, cashback and a card reward. Here's how the layers fit together, and where they don't.
The four layers
- Sale price. The retailer's own discount. Check it against price history first.
- Coupon or promo code. Store coupons in the retailer's app, manufacturer coupons, or checkout codes. Read the exclusions: many codes skip already-discounted items or certain brands.
- Cashback portal. Starting your purchase from a cashback site can return a percentage of the order. Rates change often and some categories pay little or nothing.
- Card rewards. Category bonuses on your credit card, or a retailer's own card discount, apply on top.
Common reasons stacking fails
- Using a coupon site's code can override the cashback portal's tracking. If cashback matters more, use only codes the portal lists.
- Ad blockers and privacy extensions can stop cashback from tracking. Some portals ask you to pause them for that tab.
- Gift card purchases, taxes and shipping usually don't earn cashback.
- Returns reverse the cashback, and sometimes the coupon too.
Keep it simple
You don't need every layer on every purchase. For small orders, the sale price plus the card you already use is plenty. Save the full stack for bigger purchases, where a few percent adds up.
Cashback and coupons never make a bad price good. Check that the base price is a real deal first, then stack.
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