NerdWallet Cash Back takes your existing rewards card and powers even more cash back. It’s a bit like turbocharging your rewards cards. It works on many non-rewards and debit cards, too. Here’s how you can cash in. How to get additional cash back on your credit or debit cards First, sign up for a free…

Hal M. Bundrick, CFP is a writer at NerdWallet. Email: hal@nerdwallet.com. Twitter: @halmbundrick.

The article NerdWallet Cash Back: How It Works With Your Existing Cards originally appeared on NerdWallet.

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