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 Just weeks into the 101st Illinois General Assembly’s 
legislative session, lawmakers are adding their names to a resolution to 
eliminate the state constitution’s flat income tax protection. 
 But Illinoisans have no way of knowing just how much more they’ll end up paying 
under a progressive tax.
 
 On Jan. 29, state Sen. Don Harmon, D-Oak Park, filed Senate Joint Resolution 
Constitutional Amendment 1, which would scrap the state’s constitutional flat 
tax protection and allow lawmakers to tax people differently based on income 
level. The amendment was not accompanied by a bill or statement proposing 
specific tax rates.
 
 In other words, voters are being asked for a blank check that would give 
politicians the ability to charge different rates to different groups of people 
without any details on the tax rates.
 
 Illinoisans should be wary: While proponents make many claims about the 
progressive tax, the reality is far different. Progressive tax schemes 
masquerade as a tax on the rich, but they are really a middle-class tax hike. 
They can cause long-term economic damage that hurts the very people progressive 
tax advocates say they want to help.
 
 
 Here are six myths about the progressive income tax that Illinoisans deserve to 
know:
 
 Myth No. 1: The rich don’t pay their fair share under a flat tax system.
 
 Reality: Under a flat (i.e. proportional) tax system, the rich already pay most 
of the income taxes.
 
 Proponents of a progressive income tax hike often mistakenly claim that wealthy 
income earners don’t pay their “fair share” under a flat tax system. Data from 
the Illinois Department of Revenue show the opposite.
 
 Though progressive tax proponents often fail to define their terms, including 
who they believe is “rich” and what “fair” means, a reasonable definition of 
fairness is proportionality: the idea that people should pay about the same 
share of taxes as the share of the income they receive.
 
 In 2016, the most recent year of data available, tax filers earning more than 
$100,000 per year made up 19.4 percent of taxpayers. This group earned 62 
percent of the state’s income and paid roughly 65 percent of all personal income 
taxes, or nearly two thirds.
 
 The top 1 percent of taxpayers, those making more than $500,000 per year, paid 
nearly 23 percent of all income taxes while earning about 20 percent of all 
income, a gap of 3 percent.
 
 All other income groups earn a larger share of total income than their share of 
the total tax burden.
 The simple reason for this phenomenon is the standard deduction 
in Illinois – which dropped from $2,225 to $2,000 in 2018 – exempts a larger 
percentage of a taxpayer’s income the less money they make. This exemption 
creates a slightly progressive tax system for the effective rate, or actual 
income taxes paid as a percentage of income earned, even with a flat nominal 
rate, which exists only on paper.
 Myth #2: A progressive tax hike will lead to lower property taxes
 
 Reality: A progressive tax hike will do nothing to lower property taxes
 
 Some proponents of progressive taxes claim they can be used to reduce Illinois’ 
property taxes, which studies have ranked second highest in the nation. This 
claim is dubious for several reasons.
 
 
 First, the chief causes of high property taxes in Illinois are the existence of 
too many layers of local government, which at nearly 7,000 gives Illinois by far 
the most in the nation. Too much government includes too many school districts, 
which take up about two-thirds of property taxes statewide. All that excess 
government consumes salaries, benefits and pension costs. It is a myth that 
Illinois property taxes are high because of insufficient state aid for local 
government resulting from Illinois’ flat tax.
 
 In fact, all seven states that have no income tax also have lower property taxes 
than Illinois, meaning they’re able to fund both state and local government 
services without high property taxes or a progressive income tax.
 
Second, none of the progressive tax proponents so far have include a mechanism 
that would guarantee property taxes are actually reduced. Without some mechanism 
limiting property taxes, such as a state-imposed freeze or cap, local 
governments can simply take additional revenue from the state while continuing 
to increase local taxes.
 Bureaucratic agencies are “budget maximizers” that seek to grow their own size 
and revenue; public choice economists such as William Niskanen in the journal 
“The American Economic Review” have argued this since at least 1968.
 
 This experience has been borne out in other states. Connecticut lawmakers also 
promised property tax relief when they switched from a flat tax to a progressive 
tax in the 1990s, but property taxes as a share of personal income have actually 
increased since the switch.
 
 Myth #3: A progressive tax will allow Illinois to cut taxes for the middle class 
while providing more revenue to solve the state’s fiscal problems.
 
 Reality: A progressive tax cannot fulfill all the promises attached to it – and 
often leads to higher taxes on the middle class.
 
 
Proponents of a progressive tax have claimed that it can close the state’s 
deficit, pay off its debt, fund billions of dollars of new spending and still 
provide a tax cut for the vast majority of Illinoisans. In reality, a 
progressive tax is not a silver bullet that can accomplish all of these goals 
simultaneously, or any of them in the long run.[to top of second column]
 This is especially true if a progressive tax applies only to the very wealthy.
 
 
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 Gov. J.B. Pritzker has previously said that a 
			progressive tax hike should “raise taxes on people like Bruce Rauner 
			and me.” Even setting aside levels of wealth such as Pritzker’s and 
			Rauner’s, according to data from the Internal Revenue Service, just 
			0.3 percent of Illinois tax returns reported income of over $1 
			million in 2016. There simply aren’t enough rich people in the state 
			to finance fixing the state’s financial problems, even assuming they 
			remained in the state to pay the higher tax bill. 
			And New York show us they will not stay. New York’s governor and 
			comptroller have both said the outmigration from the top 1 percent 
			of income earners – who pay nearly half of all New York income taxes 
			– is mainly to blame for a $2.3 billion budget hole.
 Adjusted gross income, or AGI – the taxable base for the personal 
			income tax – is essentially a rightward skewed bell curve. Although 
			the wealthiest Illinoisans individually have a lot of money, their 
			low number means that most of the potential tax revenue rests with 
			the middle class and upper middle class. In fact, those making 
			between $50,000 and $100,000 annually have over $95 billion – that’s 
			$12 billion more in cumulative AGI than the top 1 percent of 
			taxpayers, according to data from the Illinois Department of 
			Revenue.
 
 In looking at examples of detailed progressive tax plans in 
			Illinois, this reality becomes even clearer. A progressive tax 
			proposal from the Center for Tax and Budget Accountability, or CTBA, 
			would hike taxes on anyone earning more than $300,000 a year – about 
			2 percent of Illinois taxpayers according to CTBA’s calculations – 
			but would have only raised $2 billion in additional revenues per 
			year, according to a static estimate (assuming no negative economic 
			effects of higher taxes).
 
 The state’s annual deficit is projected to be $2.8 billion next 
			year, and the bill backlog is projected to end the year at $7.8 
			billion. The CTBA plan wouldn’t come close to solving even a single 
			year’s deficit or paying off the bill backlog.
 
 Worse, the CTBA plan proposes negligible tax relief for the bottom 
			98 percent of taxpayers. The $300 cut the plan proposes for 
			Illinoisans making less than $300,000 per year is less than the $732 
			income tax hike on the median income family in 2017, which also 
			failed to solve the state’s problems.
 
 And the last time an Illinois lawmaker proposed a specific rate 
			schedule for a progressive tax, it would have increased taxes on 
			anyone making more than $17,300 per year.
 
			
			 
			
 Myth #4: A progressive tax won’t harm the economy, or will actually 
			help it
 
 Reality: States with progressive taxes grow jobs, wages and GDP more 
			slowly
 
 Examining the past decade of the most recently available 
			macroeconomic data reveals overall economic activity – measured as 
			real gross state product, or GSP – has grown faster in states 
			without a progressive income tax than in states with a progressive 
			income tax. Since 2006, states without a progressive income tax have 
			seen GSP grow by 14.7 percent, while states with a progressive 
			income tax have seen 10.8 percent GSP growth.
 
			Additionally, employment has increased faster in states without 
			progressive income taxes. In states without a progressive income 
			tax, nonfarm payrolls have increased 7.8 percent since 2006, while 
			payrolls have only increased 5.1 percent in states with a 
			progressive income tax. Finally, wages and salaries 
			have been growing faster in states without a progressive income tax. 
			Since 2006, states without a progressive income tax have seen wages 
			and salaries increase 15.3 percent compared to 12.6 percent in 
			progressive tax states. Illinois already lags the 
			nation and neighboring states on key metrics of economic growth, 
			including: jobs growth, new business creation and personal income 
			growth. Income growth is tied for the worst in the nation from 2007 
			to 2018. The Prairie State’s economy simply cannot afford to be 
			dragged down by more bad policy from Springfield.
 Myth #5: A progressive tax will help fight income inequality
 
 Reality: States with progressive taxes have higher inequality and it 
			is growing faster
 
 The most popular measure of income inequality, the Gini coefficient 
			– which measures the gap in incomes between different segments of 
			the population – shows that inequality in states with progressive 
			taxation is both higher on a static basis and growing faster over 
			time.
 
 Myth #6: Illinois’ flat tax makes it an outdated outlier given that 
			most other states have progressive taxes
 
			
			 
 Reality: Other states are reducing their income taxes; Illinois is 
			an outlier in contemplating increasing them
 
 As mentioned earlier, seven states have no personal income tax at 
			all. An additional two states, Tennessee and New Hampshire, only 
			have income tax on capital gains.
 
 All neighboring states are moving toward lower income taxes, while 
			Illinois is the only state talking about moving in the opposite 
			direction.
 It’s no coincidence that Illinois lost 
			114,000 residents on net to other states from July 2017 to July 
			2018, a rate of 313 residents per day. The 2018 Illinois Issues 
			Survey found that 53 percent of residents have considered leaving 
			Illinois. The top reason “why” is the comparatively lower tax 
			burdens in other states, with 39 percent of those who considered 
			leaving citing this as their “primary reason.” Even more 
			middle-class residents have considered leaving, at 64 percent.
 The behavior of neighboring states is particularly important because 
			they are more directly competing with Illinois in the regional 
			economy to attract residents and businesses.
 
 Rather than continuing to try to solve Illinois’ fiscal problems 
			with economically harmful tax hikes, Illinois should look to 
			structurally reform spending and provide tax relief.
 
			
            
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