Best Buy's new MacBook upgrade program locks you into three years of monthly payments before giving you the option to upgrade to the best machine. It's called Upgrade Plus and it allows people with approved credit to finance a MacBook or MacBook Air.

As an example, Best Buy says you can purchase the $999 M1 powered MacBook Air for as low as $19.99 for 36 months and then pay out the rest in 37 months to keep it. The program's FAQ states that offers may carry interest of up to 29.99 percent, depending on creditworthiness.

If you don't want to pay the higher amount on the last payment, Best Buy says you can either return the device or upgrade to the newest model. If you decide to upgrade, Best Buy will foot the remaining balance, but you have to commit to another three years of payments before you can upgrade again, keep the device, or leave the program.

Best Buy’s Upgrade Plus program
Best Buy’s Upgrade Plus lets you choose from five MacBooks.

The $2,499 16-inch M1 MacBook Pro will cost you about $51.17 per month with a final payment of $550 according to the Best Buy website. The M2 MacBook Air, 13-inch MacBook Pro, and 14-inch MacBook Pro can be purchased through the program.

If you add any accessories or an AppleCare Plus subscription to your bill, your payments will go up. If you are a Best Buy TotalTech member, you will get a two-year AppleCare Plus subscription with your purchase of Apple products.

You can trade in your device for an upgrade if you complete 12 months of payments on the program. A subscription service for the iPhone is rumored to launch later this year or next year. Unlike Apple's existing upgrade program, it could come with a base monthly cost that wouldn't be dependent on the price of the device itself, making it more like an iPhone lending service.