Chee owed $4,000 in Federal income tax when she filed her Form 1040 for 2013. She attached a sticky note to the 1040 that read, "My inventory computations on last year's (2012) return were wrong, so I paid $1,000 too much in tax." Chee then included a check for $3,000 with the Form 1040 for 2013. Write a memo for the tax research file commenting on Chee's actions.