Sign Your Name
On the back of the check, where you would normally endorse it, write the words, "For Deposit Only." Underneath that, have your child print his name if he is able. Sign your name underneath your child's. If he is not old enough to write, then write the word "by" and sign your name followed by "parent" or "guardian." Some banks require you to sign your name and include "parent or guardian of [child's name]" and then sign it again underneath your first endorsement. Check with your financial institution to get the exact method of depositing a check made out to your child.