Yes, you right! send W-7 with 1040 to ITIN unit.
Regarding your state tax, they'll hold on your case until your son get his ITIN. So, attache a copy of W-7 is not a bad idiea to let them know you are applying.
Any more question, u can call the irs 800 number.
Regarding your state tax, they'll hold on your case until your son get his ITIN. So, attache a copy of W-7 is not a bad idiea to let them know you are applying.
Any more question, u can call the irs 800 number.