Use a blank check and right VOID on the signature line. The voided blank check is not necessary, no matter what the person said, just the routing and account numbers are needed.The claim number and type of payment are printed on Government checks. Complete this section only if you want to start, cancel or change the amount of a savings or discretionary allotment - see instructions on back of form. I'm 17 and my bank account has no checks, and way too many restrictions. It's because I'm a minor. Student Name (please print). Attach voided check or a letter from the bank stating routing and account number for each bank. To void a check for direct deposit, you can: Or, write VOID in the: Use a black or blue pen to write void. You want the ink to be permanent.