@faray not true - you want that ITIN.
if you don't have ITIN, you can't file a joint return. that increases your taxes.
further, and this gets complicated, I note you mention a daughter, did you fake an SSN for her as well? your tax refund may be inflated if so.
with an ITIN for both spouse and daughter, you are eligible for "other dependent credit" which is $500 credit. Without the ITIN for both, you don't get it.
if your daughter is in child care, you can get a credit for that if wife and daughter have ITIN, but can't if they don't.
so there is benefit of ITIN, it is just a complex subject given different tax credits work differently on the matter of ITIN - in some cases you still get the tax credit, in other cases you don't.
