Is this page for you?
Plainly: this page helps most if you complete Form 4563 again for a new tax year, because the form asks about "the tax year" and a new year means a new form. The benefit is your name, social security number and the residence and employer details that stay the same. The dates, the days away and every amount are different each time. If this is your first and only Form 4563, the benefit is small.