Written Amount Required on Check?

Answer by John Burnett:We'd better hope that the amount in words is not required! U.S. Treasury checks only have one amount stated, and it's numeric. While it's true that most checks have two dollar amount statements, one numeric and one in words, either one is sufficient to make a check valid. As you know, when there's a discrepancy between two dollar amount statements on a check, the amount expressed in words controls. Ironically, the numerical amount is the one that is read by most check-recognition automation equipment.