Why not do away with the income tax altogether? The treasury functioned just fine for over 100 years without one.
A consumption tax can easily replace the income tax. It's simple to administer and impossible to avoid. Those mythical tax shelters the liberals are so fond of blaming "the rich" of exploiting would cease to exist. My one condition is that the the income tax is gone. Forever. What I earn is none of anyone's damn business. Congress can't even define what "income" is anyway, despite over 71,000 pages of tax code legislation. The only people who would object are armies of tax attorneys who would have to find something else to do. No likes them anyway.
What do they do? They employ lots of people with generous salaries and handsome benefits with guaranteed pensions - and produce nothing.
I'd like to know of one federal agency that does its job effectively. Other than the IRS that is.
Come to think of it, you have an even better idea. I would support a consumption tax provided all income taxes (and property taxes) were abolished. Definitely.