Do I record my quarterly federal income tax and self-employment taxes as and expense, if so where?
It sounds like you are a sole proprietor so these tax payments are not a direct business expense. That does not mean that you cannot record them in QuickBooks however. I would record the payments as a distribution to you (the account should be an equity account) and in the memo field note what tax it is (federal or state) and what period so that you have this information handy when you prepare the tax returns. If you have employees, then the portion of the tax payment that is the employer portion is an expense and would be recorded as payroll tax expense.
