Who are the taxable persons?

Answer 1

In the Internal Revenue Code there is a tax imposed upon taxable income and that is defined as gross income or adjusted gross income which amounts to income earned in a taxable year by a taxpayer. A taxpayer is any person subject to any revenue laws. Is that clear? It isn't to me, and I remain astounded that so many people will claim that such circumlocution is clear to them. A tax imposed upon taxable income does not answer what the subject of the tax is. Is taxable income the same as income? If it is then why is taxable income defined as gross income or adjusted gross income but income itself never defined? Is income the subject of the Personal Income Tax Law? Who are the taxable persons? Those persons made liable for a tax are. How do we know who has been made liable to a tax by understanding that a tax was imposed upon taxable income?