Find the lowest stacked price on anything.
DealStacker layers every discount in the right order — loyalty, vouchers, gift cards and cashback — to reveal the true cheapest way to buy.
Money-saving guides
Plain-English, original guides on stacking cashback, vouchers and gift cards in the UK.
How to stack cashback, vouchers and gift cards (UK guide)
The complete method for combining loyalty pricing, voucher codes, discounted gift cards and cashback on a single purchase — in the order that saves the most.
Read the guide · 7 min →
Discounted gift cards: save 3–7% on almost anything
Buying a retailer's e-gift card below face value is one of the most reliable ways to shave money off any purchase. Here's how it works and where it stacks.
Read the guide · 5 min →
Best UK cashback sites compared: TopCashback vs Quidco vs Rakuten
The three big UK cashback portals, how they differ on rates, payouts and reliability, and how to pick the right one for each purchase.
Read the guide · 6 min →
Search once, compare everywhere
We match your item across Currys, Argos and ASOS, then rank by the real bottom-line cash price.
The full stack, in order
Member price → voucher → gift card → cashback → card cashback. The exact waterfall the extension uses in-page.
Honest cash vs points
Loyalty points are shown separately as deferred value — never folded into the price you actually pay today.
Close the deal in one click
Found your deal here? Hit Go to Deal and the DealStacker extension re-runs the exact same stack against the live page price — auto-applying your voucher at checkout.