By Pat Southern. Last updated 2011-03-29. Of the many men who led Rome, only a handful can truly be said to have profoundly and fundamentally shaped the empire's structure and direction. This gallery introduces six of the most important Roman emperors.
Tax Liability. The amount of total tax due the IRS after any credits and before taking into account any advance payments (withholding, estimated payments, etc.) made by the taxpayer.
Tip. 1  Your company's tax liability is based on your company's total profits, not its total revenues. 2  Be sure to deduct your cost of goods sold and your business expenses from your revenues when you report your income to the Internal Revenue Service.