[mixmastamyk]

Not a problem, you enter dependents into the wizard, and take them out when/if they move out.

No matter the situation, they accept your word for it. If an audit occurs you will have to prove things with documentation and be held liable for mistakes or fraud.

It's basically a five-minute task that you appear to believe should make tax filing take hours?

I did taxes once in NZ, you go to a website where they have all the data ready. Then you go next, next, finish, adding a deduction or dependent here and there. Takes 15-30 mins.