Paying quarterly self-employment estimated taxes?
I did not become self-employed until 4/23/12, so I did not make the estimated tax payment due on 4/15/12. Does this mean that I divide my estimated tax by 3, for the 3 payments due, instead of dividing by 4 for the 4 quarters? Also, what if the number I've calculated as due seems really low? Can I pay more, just to be safe? I don't want to owe when I file!!