Thanks again. Let me clean my question up. When i calculate my quarterly estimated tax due using the method you suggest, do i include the income and witholdings from my employer ("day job") paycheck in these calculations, or do i essentially exclude my paycheck income and withholdings from my quartely tax calculations?...and only calculate my quarterly estimated income and taxes based on the income i think i will earn outside from my paycheck where no taxes are withheld (e.g. dividends and capital stock gains)?
I do not want to double pay the taxes from my paycheck income, since taxes on my paycheck income are being withheld from my paycheck by my employer already anyways.
