Earn up to 10 Amex points per dollar with Rakuten

Editor’s note: This is a recurring post, regularly updated with new information and offers.

One of our favorite online shopping portals is back with its annual Big Stack promotion. From July 10 to 12, Rakuten is offering up to 10 American Express Membership Rewards points per dollar (or 10% cash back) at participating retailers.

If you want to get the best deal for your online shopping, click through Rakuten first (yes, that same company with the very fun “Clueless”-themed Super Bowl commercial.).

To use the portal, begin your online shopping trip on the Rakuten website, and search for your desired store. You’ll be redirected to the retailer’s website. After you make your purchase, Rakuten will track your transaction and add bonus rewards to your account — generally within just a day or two.

Better yet, if you’re a new Rakuten shopper, you can also earn a $30 cash bonus when you spend at least $30 on a qualifying purchase within the first 90 days.

Here’s what you need to know about this deal.

Earning up to 10% (or more) cash back is newsworthy. However, earning up to 10 Amex Membership Rewards points per dollar can be even better for those looking to earn transferable points.

TPG values Amex points at 2 cents each when used toward travel. That means you’ll effectively get up to a 20% return on spending when making purchases during this promotion. So if you’re getting your credit cards ready for the upcoming summer holidays, this is the deal for you.

Related: How to use Rakuten to earn bonus cash back or Amex points on your purchases

Just note that you must update your earning preference from cash back to Amex points in your Rakuten account before completing your purchase. Also, be aware that switching from Amex points back to cash back is permanent, so think carefully before making that change.

Here are some of the stores participating in this promotion:

• Bloomingdale’s
• Dermstore
• Finish Line
• Glossier
• Indochino
• Macy’s
• PetSmart
• Ray-Ban
• ULTA
• Viator

At most merchants, you’ll want to pay with a credit card that earns bonus points and miles on everyday purchases. Some good options include the Capital One Venture Rewards Credit Card (see rates and fees), which earns 2 Capital One miles per dollar on all purchases, and the Citi® Double Cash Card (see rates and fees), which earns 2% back on all purchases — 1% when you buy and 1% when you pay your bill. These rewards can be converted to full Citi ThankYou points if you have a higher-end card like the Citi Premier® Card (see rates and fees).

However, on Viator purchases, consider using a card that earns well on general travel purchases, like the Chase Sapphire Preferred Card or Chase Sapphire Reserve, which earn 2 and 3 Ultimate Rewards points per dollar spent on travel purchases, respectively.

And remember that the 10% back (or 10 Amex points) will be in addition to any earnings on the credit card you swipe.

Related: How to redeem American Express Membership Rewards for maximum value

Historically, Dell.com has offered bonus points via Rakuten, and it’s one of the participating merchants in the Big Stack promotion. This means now could be a great time to spend your Dell credit from The Business Platinum Card® from American Express.

As a reminder, the card provides cardholders up to $400 in annual statement credits per year toward U.S. purchases with Dell in the form of $200 back in January-June and the second $200 from July-December. Enrollment is required in advance.

In addition to computers, Dell sells projectors, laptop bags, headphones, monitors, video games and more.

Alternatively, if you have The Platinum Card® from American Express, you’ll enjoy up to $100 in annual statement credits for purchases at Saks Fifth Avenue ($50 from January-June and another $50 from July-December). Enrollment is required in advance. While Saks isn’t participating in this promotion, you can still earn more on your purchase by going through Rakuten.

Related: 11 things you can buy with the Amex Platinum $50 Saks credit

Finally, be sure to see if any of the participating merchants also have offers through your favorite credit cards. You may be eligible for discounts or bonus points through Amex Offers, Chase Offers or Citi Merchant Offers, so it’s worth checking those platforms before making an online purchase.