FWIW, I think that making the tax rate even more progressive is a good idea. Maybe something like 40% for anything over $1 million, 45% for over $5 million, 50% for 10, and a nice 60% for anything over $30 million.
Why not just make it much, much simpler. Impose a flat tax of 30% across the board on all taxpayers, with the first $30,000 of income tax free. Allow married couples to pool their allotment of up to $30,000 so that a married couple would get up to their first $60,000 tax free.
$20,000 inc. - $30K = $0 taxable @ 30% = $0 effective rate = 0.0%
$30,000 inc. - $30K = $0 taxable @ 30% = $0 effective rate = 0.0%
$40,000 inc. - $30K = $10,000 taxable @ 30% = $3,000 effective rate = 7.5%
$50,000 inc. - $30K = $20,000 taxable @ 30% = $6,000 effective rate = 12.0%
$60,000 inc. - $30K = $30,000 taxable @ 30% = $9,000 effective rate = 15.0%
$70,000 inc. - $30K = $40,000 taxable @ 30% = $12,000 effective rate = 17.1%
$80,000 inc. - $30K = $50,000 taxable @ 30% = $15,000 effective rate = 18.8%
$90,000 inc. - $30K = $60,000 taxable @ 30% = $18,000 effective rate = 20.0%
$100,000 inc. - $30K = $70,000 taxable @ 30% = $21,000 effective rate = 21.0%
$110,000 inc. - $30K = $80,000 taxable @ 30% = $24,000 effective rate = 21.8%
$120,000 inc. - $30K = $90,000 taxable @ 30% = $27,000 effective rate = 22.5%
$130,000 inc. - $30K = $100,000 taxable @ 30% = $30,000 effective rate = 23.1%
$140,000 inc. - $30K = $110,000 taxable @ 30% = $33,000 effective rate = 23.6%
$150,000 inc. - $30K = $120,000 taxable @ 30% = $36,000 effective rate = 24.0%
$160,000 inc. - $30K = $130,000 taxable @ 30% = $39,000 effective rate = 24.4%
$170,000 inc. - $30K = $140,000 taxable @ 30% = $42,000 effective rate = 24.7%
$180,000 inc. - $30K = $150,000 taxable @ 30% = $45,000 effective rate = 25.0%
$190,000 inc. - $30K = $160,000 taxable @ 30% = $48,000 effective rate = 25.3%
$200,000 inc. - $30K = $170,000 taxable @ 30% = $51,000 effective rate = 25.5%
$210,000 inc. - $30K = $180,000 taxable @ 30% = $54,000 effective rate = 25.7%
$220,000 inc. - $30K = $190,000 taxable @ 30% = $57,000 effective rate = 25.9%
$230,000 inc. - $30K = $200,000 taxable @ 30% = $60,000 effective rate = 26.1%
$240,000 inc. - $30K = $210,000 taxable @ 30% = $63,000 effective rate = 26.3%
$250,000 inc. - $30K = $220,000 taxable @ 30% = $66,000 effective rate = 26.4%
$350,000 inc. - $30K = $320,000 taxable @ 30% = $96,000 effective rate = 27.4%
$450,000 inc. - $30K = $420,000 taxable @ 30% = $126,000 effective rate = 28.0%
$550,000 inc. - $30K = $520,000 taxable @ 30% = $156,000 effective rate = 28.4%
$650,000 inc. - $30K = $620,000 taxable @ 30% = $186,000 effective rate = 28.6%
$750,000 inc. - $30K = $720,000 taxable @ 30% = $216,000 effective rate = 28.8%
$850,000 inc. - $30K = $820,000 taxable @ 30% = $246,000 effective rate = 28.9%
$950,000 inc. - $30K = $920,000 taxable @ 30% = $276,000 effective rate = 29.1%
$1,050,000 inc. - $30K = $1,020,000 taxable @ 30% = $306,000 effective rate = 29.1%
$1,150,000 inc. - $30K = $1,120,000 taxable @ 30% = $336,000 effective rate = 29.2%
$1,250,000 inc. - $30K = $1,220,000 taxable @ 30% = $366,000 effective rate = 29.3%
$1,350,000 inc. - $30K = $1,320,000 taxable @ 30% = $396,000 effective rate = 29.3%
$1,450,000 inc. - $30K = $1,420,000 taxable @ 30% = $426,000 effective rate = 29.4%
$1,550,000 inc. - $30K = $1,520,000 taxable @ 30% = $456,000 effective rate = 29.4%
$1,650,000 inc. - $30K = $1,620,000 taxable @ 30% = $486,000 effective rate = 29.5%
$1,750,000 inc. - $30K = $1,720,000 taxable @ 30% = $516,000 effective rate = 29.5%
$1,850,000 inc. - $30K = $1,820,000 taxable @ 30% = $546,000 effective rate = 29.5%
$1,950,000 inc. - $30K = $1,920,000 taxable @ 30% = $576,000 effective rate = 29.5%
$2,050,000 inc. - $30K = $2,020,000 taxable @ 30% = $606,000 effective rate = 29.6%
$2,150,000 inc. - $30K = $2,120,000 taxable @ 30% = $636,000 effective rate = 29.6%
$2,250,000 inc. - $30K = $2,220,000 taxable @ 30% = $666,000 effective rate = 29.6%
No on would ever pay the full 30%, but the taxes would be smoothly progressive, with no stepped tiers. On top of that, eliminate
all exemptions and deductions. No loopholes, no using taxation to encourage desired activities. Make taxation a means to raise funds to operate the government, nothing else.
On top of that income tax plan, impose a 15% across the board tariff on all imported manufactured goods. That would exclude food imports, except for processed foods like canned goods. That would also exclude commodities like ores, crude oil, and other raw materials. Give countries with a positive balance of trade relationship with the US a dollar for dollar rebate on all tariffs collected on goods from their countries, which the foreign governments can keep or rebate to their companies.
For example, if Lower Slobovia exports $100,000,000 worth of manufactured goods to the US, we'd charge them a tariff of $15,000,000. If Lower Slobovia buys $75,000,000 worth of anything from the US, including raw materials or unprocessed foods, we'd rebate to the Lower Slobovian government $11,250,000. Net tariff to Lower Slobovia is $3,750,000. If the Lower Slobovian government encourages its people to consume more US made manufactured goods, and they buy $150,000,000 worth of US products, they'd make a profit of $7,500,000 from the US. That amounts to a 5% subsidy of US companies making export products for Lower Slobovia, but considering how many payroll dollars will be paid out to US workers and then taxed as income tax, that's not really a bad deal.
Finally, don't bother taxing companies at all. It's just juggling numbers on paper. Whatever a company has to pay to the government in taxes it makes up for by increasing the price of its goods and services. It's the consumer that pays all corporate taxes in the form of higher prices. So, instead of having corporations collect hidden taxes on consumers, just suck the money out of the economy through income tax. All corporate profits should end up in someone's hand eventually. When it does, it gets taxed then. If there are no shelters, no loopholes, no means for those making high incomes to legally shelter their income from taxation, then the government will get it's cut from companies when the company pays it out in salaries, dividends, and other such compensation.
Of course, that idea will never happen, because it's based on eliminating loopholes and other gifts given to the special interests who own the people in government.
Not saying this is wrong, or evil. There are good arguments (or at least arguments
) to be made for a different tax rate for, say, capital gains. But it does need to be taken into account. So unless you win the lottery grand prize of $400,000, most people with income over $380,000 a year aren't paying that 35% tax rate on the whole pot.
It's that sort of thinking, that taxation should be used as an incentive to manipulate people into certain behaviours that has lead to the current mess. Once you let the camel of "taxation as carrot or stick" put his nose in the tent, the rest of him will follow. The incentive for long-term investment should be the intrinsic value of long-term investment, not some artificial manipulation brought about by tax incentives and loopholes. For every defensible tax incentive and loophole, there are many others that are just flat-out payouts to major campaign contributors. When corporations or mega-sized labor union pay hundreds of thousands of dollars to candidates, do you really think they don't expect special considerations like favorable tax loopholes in return?
Why not adopt a policy of "lead us not into temptation", but simply eliminating ALL loopholes, across the board?