What is a Folio Number in Accounting?

A folio number is a reference number used in accounting to uniquely identify an entry in a journal or ledger. This number is stored in a separate folio number field in an entry. The number may be numeric or alphanumeric.

What is a Folio Number in Investing?

Folio numbers are used in mutual funds, where they uniquely identify an investor’s account. This number can be used to track down an investor’s transaction history with a mutual fund.