Just write “VOID” next to the check number and date, and note who you gave the check to. Writing “VOID” across the front of the check prevents anybody from using the check to make a payment (by filling in a payee and an amount). Nobody will have access to a blank check, which could be used to steal your money.

Does writing void on a check void it?

Writing “VOID” across a check prevents it from being used, while still allowing you to share your account number and bank routing number.

Why would you write void on a check?

Writing “VOID” across the front of the check prevents anybody from using the check to make a standard check payment (by filling in a payee and an amount). If a thief gets their hands on the check, they won't have a blank check, which they could use to spend your money—effectively stealing from your account.