10 Best Cashback Websites for Online Arbitrage (2026)

Cashback websites (also called cash back sites, rebate sites, or shopping portals) pay you a percentage of what you spend at partner stores. For online arbitrage sellers, that rebate lowers your cost of goods and raises the ROI of every deal you buy. This guide explains how cashback works, how to stack it with other discounts, the best cashback websites for online arbitrage in 2026, and the mistakes that can cost you your rewards.

What is Cashback?

Cashback is money returned to you after a purchase. Retailers pay cashback sites an affiliate commission for sending them shoppers, and the cashback site shares part (or all) of that commission with you. Rates are usually a percentage of your order subtotal, vary from store to store, and change often, especially during holiday and promotional events.

How to Use Cashback in Online Arbitrage

Most cashback rates fall in the low single digits, with higher rates during limited-time promotions. That may sound small, but it goes straight to your margin. For example, if you buy an item for $20 that nets you $25 after Amazon fees, your profit is $5 (25% ROI). With 8% cashback ($1.60), profit rises to $6.60 and ROI to 33%. Across hundreds of units, cashback can add up to a meaningful part of your online arbitrage profit.

Before each order, search CashbackMonitor.com for the store you are buying from to see which portal pays the highest rate that day. Over time, you will settle on two or three favorite sites.

What is cashback arbitrage?

Cashback arbitrage means layering several savings on one purchase so that your real cost is lower than the price you pay at checkout, then reselling the item for a profit. A typical stack for OA sellers looks like this:

• The store’s sale price or clearance discount (the deal itself).
• A valid coupon or promo code that the cashback portal allows.
• Cashback from a portal such as Rakuten, TopCashback, or BeFrugal.
• Discounted gift cards for the store, where available.
• A rewards credit card for an extra percentage back.

The deal still has to stand on its own. Cashback should be a bonus on top of a profitable product, not the reason to buy something that won’t sell. That is why many sellers pair cashback portals with an online arbitrage sourcing list of pre-checked deals.

Top Cashback Websites for Online Arbitrage (2026)

There are over 100 cash-back sites available, but here are some favorite ones:

1) TopCashback

TopCashback says it passes 100% of the commission it receives from retailers on to members, which is why its rates are often among the highest for big OA stores. It covers thousands of US retailers, runs frequent rate boosts, and offers an optional paid Plus membership with extra bonuses. Payouts can go to PayPal, your bank account, or gift cards.

TopCashback also operates separate sites for other countries, including the UK, which is useful if you source from UK online retailers.

2) BeFrugal

BeFrugal is a cashback portal covering thousands of online stores, with a browser extension that alerts you to cashback offers while you shop. It is known for its highest cash back guarantee on eligible stores and for flexible payouts, including PayPal, check, direct deposit, and gift cards. It also lists coupon codes and daily deals, which makes it easy to stack savings in one place.

3) Capital One Shopping

Capital One Shopping is a free browser extension and app (you don’t need a Capital One card) that compares prices across retailers, applies available coupon codes, and awards shopping rewards you can redeem for gift cards. For OA sellers, its price-comparison alerts can be as useful as the rewards themselves.

4) Rakuten

Rakuten (formerly Ebates) is one of the largest US cashback portals, with thousands of partner stores, a browser extension, and a mobile app. It pays out quarterly by PayPal or check, and new members can usually earn a welcome bonus after a qualifying purchase (the amount changes, so check the current offer).

Rakuten regularly runs elevated and “double cash back” events at popular stores, which are worth watching during Q4 sourcing. Rates differ by store and category, so always confirm the rate on the store page before you check out.

5) Swagbucks

The best thing about Swagbucks is that there are so many ways to earn points – known as ‘Swagbucks’ or SB. Swagbucks will send you a daily email listing the best ways to earn SB; these could be as simple as signing up for an email newsletter. You can also earn by taking surveys conveniently on the app, watching videos, and playing games on their website.

For online purchases, Swagbucks works like a cashback portal: activate the store through Swagbucks and earn SB on eligible orders. Once you have enough SB, you can redeem them for gift cards or PayPal cash. Swagbucks also runs referral and sign-up promotions that change over time.

6) Mr.Rebates

Mr. Rebates offers cashback at thousands of stores through its website, mobile app, and browser extension. Retailers pay Mr. Rebates a commission and it shares that commission with you as a rebate, which you can withdraw by PayPal, check, or other payout options. It also pays a referral bonus based on what referred members earn.

7) Extrabux

Extrabux has been running since 2006 and has a multi-language site that includes a number of international retailers. It frequently runs higher-rate “super cashback” promotions at selected stores, so it’s worth adding to your comparison on CashbackMonitor.

8) Ibotta

Ibotta, launched in 2012, combines an online cashback portal and browser extension with in-app offers for everyday purchases, including groceries. It is more useful for retail arbitrage and replenishable household items than for large online arbitrage orders, but its online cashback can still stack with other savings.

9) MyPoints

MyPoints is a free rewards program where you earn points for shopping through its portal at thousands of retailers, plus extra points for activities like surveys and videos. Points are credited once the retailer reports your order and can be redeemed for gift cards, including Visa gift cards.

10) PayPal Honey

Honey, owned by PayPal, is a free browser extension that automatically tests coupon codes at checkout and offers rewards at participating stores. It is primarily a coupon tool rather than a high-rate cashback portal. One caution for OA sellers: running a coupon or rewards extension at the same time as a cashback portal can replace the portal’s tracking, so activate only the portal you want credit from and disable other shopping extensions before you check out.

Cashback Tips and Pitfalls for OA Sellers

• Double-check your coupon codes after clicking through. The portal link redirects you to the store, and sometimes strips codes you entered earlier. Re-check your cart before paying.
• Use only coupons the portal allows. Many portals void cashback when you use a code that isn’t listed on their site.
• One tracking source per order. Disable other coupon and rewards extensions, and start a fresh session if you clicked several portals.
• Read the exclusions. Gift card purchases, some categories, and some marketplaces earn reduced or no cashback.
• Check the terms on bulk orders. Some stores limit quantities or cancel large orders, and some portals exclude purchases for resale, so read the terms before you buy in volume.
• Expect delays. Cashback often stays pending for weeks or months until the return window closes, so don’t depend on it for short-term cash flow.
• Keep records. Track cashback by order for your bookkeeping and ask your accountant how to record it.

Cashback works best on top of solid deals. To find more of those, see our guides to the best online arbitrage websites and ways to find OA leads.

FAQs

How does cashback work?

When you click through a cashback site to a store and buy, the store pays the site an affiliate commission. The cashback site shares part or all of that commission with you, usually as a percentage of your order subtotal, and pays it out once the order is confirmed.

Which cashback website is best for online arbitrage?

There is no single best site. Rakuten, TopCashback, and BeFrugal cover most stores OA sellers buy from, but rates change daily, so compare them on CashbackMonitor before each order and use whichever pays the most that day.

Are cashback sites legit?

Established portals such as Rakuten, TopCashback, and BeFrugal have paid members for many years. They earn money from retailer commissions, so the cashback costs you nothing extra. Stick to well-known sites and read their terms.

Can I stack cashback with coupons and gift cards?

Usually yes, as long as the coupon is allowed by the cashback portal and the store’s terms. Paying with discounted gift cards or a rewards credit card can add another layer of savings, although some portals reduce cashback on gift card purchases.

Is cashback taxable?

In the US, cashback on purchases is generally treated as a rebate that lowers the cost of what you bought, while sign-up and referral bonuses may be treated differently. Rules depend on your situation, so check with a tax professional.