I made about $20K last year, plus a substantial amount in SE and mutual fund dividends.
This year, I made $10K the 1st half of the year, then was supposed to have a ten-fold increase in salary for the last half of the year. That said, I did not make estimated tax payments on the SE and dividends, since I thought I would be able to use the safe harbor rule.
Well, unfortunately, things didn't turn out as planned, and I lost the high-paying job I was supposed to have during the 2nd half of the year. So I'm unemployed and making no salary. But I did have some SE and dividend income during the 1st half of the year, and will for the 2nd half of the year as well.
So my question is, assuming I end up unemployed for the rest of the year, I know I'll have a underpayment penalty. To reiterate, I have NOT paid estimated taxes for the 1st two quarters. What form do I need to fill out TODAY, to figure out the amount to pay NOW to catch up? I'm reading through Form 2210, and the AI schedule, but from what I read, it looks like those forms are supposed to be filled out next April 2011, when my 1040 is due. They seem to calculate what my penalty will be next April, but don't calculate what my estimated tax payouts should throughout this year.