The bottom line of every bank or credit union check is preprinted with a sequence of numbers and symbols below the memo space and signature line. These numbers and symbols contain important ...

Rebecca Lake is a certified educator in personal finance (CEPF) and a banking expert. She's been writing about personal finance since 2014, and her work has appeared in numerous publications online.

This nine-digit number identifies your bank or credit union in a financial transaction. Many, or all, of the products featured on this page are from our advertising partners who compensate us when you ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Investopedia / Matthew Collins A reference number is a unique combination of letters and/or ...