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How Cash Back Sites Make Money

Reviewed September 15, 2026 by Kyle, founder of StackWell · Editorial policy

If a website is paying you to shop somewhere, you should know where the money is coming from. There's no catch - cashback sites are funded by a long-standing model called affiliate marketing - but it's worth understanding so you know exactly what you're signing up for. Here's how it actually works, in plain English.

It's Called Affiliate Marketing

Most online stores have an "affiliate program." Anyone can sign up - cashback sites, bloggers, YouTubers, news sites - and they get a unique tracking link for the store. When someone clicks that link and buys something, the store pays the affiliate a commission, usually 1% to 30% of the sale.

Cashback sites are just affiliates that share most of that commission with you, the shopper. We'd rather give you most of our commission than spend it on advertising to find new users.

Why Stores Are Happy To Pay

Affiliate marketing is performance-based: merchants generally pay when a defined purchase, signup, or lead is confirmed. That differs from advertising models that charge for impressions or clicks regardless of conversion.

Where Different Cash Back Sites Differ

Services differ in their merchant coverage, offer exclusions, share of commission, confirmation timeline, cash-out minimum, and redemption options. Those terms change, so compare current offer and payout pages directly.

Why You Should Care

Now that you know how it works, you also know why some sites can pay way more than others - and why a "free" site that pays you for shopping isn't too good to be true. The store is paying for the referral one way or another. You might as well be the one collecting it.

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