Question #1: Roni, I got married last month and I was wondering if my new husband and I should still file as single with the IRS since we were wed so late in the year?
No, as long as you are legally wed before December 31st, then you are married in the eyes of the IRS. Therefore, you will either need to file as married filing together, or married filing separately. Depending on your unique financial situation, it might be more beneficial to select one option or the other.
Question #2: What is nontaxable income?