After I finished my 2007 return, it looked like I would likely have an excessive tax due for 2008, due to some self-employment income. So I "signed up" to make 4 quarterly estimated-tax payments against my 2008 taxes, with the last due in January 2009.
However, preliminary calculations show that I'll be in good shape (unlikely to have an excessive penalty-triggering tax due) even if I never make that final payment in Jan '09. My question is, am I in good shape as regards the "estimated tax payments made on-time" if I simply skip that last payment ? I would assume so, since my payments appear to be "enough" and they are front-weighted in the sense that I'm skipping the last payment, not any earlier ones.
Thanks !