Aside from being a contract physician, I also have an internet-based business from my home. The taxes and forms almost make it not worth the effort, but it's too late to stop now.
I accidentally filed a form late (form 1120S if you care). I paid all my fees on time over the internet, but the actual form itself didn't get there until about 2 months after the due date. Another penalty. Oh well.
When I called the IRS to ask which address to send my form, a very helpful woman named Judy answered. I told her about the late filing penalty and she said that this is the first year they are assessing the penalty. She told me they can automatically apply a "1st-time offender" waiver, which she did right there on the phone. $267 wiped away!
She also told me I could fax the form right to her (instead of mailing it), saving a several weeks in processing.
Our government actually working. W00t!!