2. Above a floor of minimum untaxed income, set the personal income tax at 19% for families with children. The rate for singles and couples without children will be slightly higher. The tax will be the same on all forms of income, with no deductions for mortgages, charities, depreciation, etc. Those with high incomes will not be able to shelter their income, and everyone should have more money to spend. This will be the first step toward simplifying taxes and significantly reducing the IRS.