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Why do banks give out free money for opening accounts?

Banks pay you sign-up bonuses because acquiring a new customer is expensive, and paying you directly is often cheaper and more effective than running traditional advertising campaigns.

It is normal to be skeptical when a bank offers you $300 just to open an account. It feels like a scam. But the reality is much simpler. It is just a marketing expense. Banks spend billions of dollars every year trying to get new customers. Instead of giving all that money to television networks or social media platforms for ads, they offer some of it directly to you.

They do this because the lifetime value of a banking customer is huge. Most people open a checking account and leave it there for over a decade. They eventually get auto loans, mortgages, and credit cards from that same bank. The bank is betting that paying you a few hundred dollars today will lead to thousands of dollars in profit over the next ten years.

That is exactly why these bonuses come with hoops to jump through. Banks do not want to hand out cash to just anyone. They usually require you to set up a direct deposit or maintain a minimum balance. These requirements prove to the bank that you have steady income or cash reserves. They are filtering for people who are likely to be profitable long-term customers.

The catch is that you do not actually have to stay a customer forever. You can collect the bonus, keep your cash completely safe with no investing or market exposure, and eventually move your money to the next offer. This practice is known as churning. As long as you follow the rules and wait out the required hold period, the bank pays you the bonus and you can walk away. Browse current bank bonuses to see what's available right now.