So i prepaid 2 quarters of taxes on 12/17, and informed my mortgage bank of the payment. For some reason on 12/22, over a month before my q1 taxes were due they paid the q1 tax as well, and I now have 0 balance for q1 and q2 and negative balance for q3 (which i assume will be zeroed out once it is actually billed). Can i now deduct the 3 quarters of payments?