You can find your bank
account number/routing number at the bottom of your 1040 form.
Bank account number
can be found on the following lines, depending on the type of 1040 filed:
Form 1040A
Line 48d
Form 1040EZ
Line 13d
Form 1040
Line 76d
Form 1040NR
Line 73d
Routing number can be found on the following lines, depending on the type of 1040 filed:
Form 1040A Line 48b
Form 1040EZ Line 13b
Form 1040 Line 76b
Form 1040NR Line 73b