Occasionally, you will need to void a check if you incorrectly write it or to set up direct deposit with your employer, charity, or automatic monthly bill payments Just like you write a check in pen, use a pen to write "VOID" on the front of the check. Each person does it slightly differently, as you might prefer to write the word once in giant letters or write the word in each of the five fields. If you're writing a voided check to schedule automatic monthly payments or deposits, you usually don't have to fill in any of the five fields. However, you might decide to write a brief note in the memo for your personal record.