What Is the Minimum Threshold for Payment on Amazon KDP?

This is the minimum amount of earnings you need to build up before Amazon sends your royalties to you. Amazon won’t transfer your earnings to you until you've reached a specified amount, depending on how you choose to receive your payments.

The Different Payment Thresholds for KDP

If you choose to get your payments via direct deposit right into your bank account, the minimum threshold is very low; just one cent. However, if you choose to get paid by check, the threshold is higher, usually $100.00. 

These rules can vary somewhat depending on where you live, but this is the basic structure. For most authors, getting paid by direct deposit is the easiest and fastest way to go.