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 Shortly after U.S. Census data confirmed Illinois lost people 
for the sixth straight year, IRS data – which lags Census data by a year – 
showed who was leaving the state. Topping the list were those earning more than 
$200,000, who were twice as likely to move away as other Illinoisans. 
 Illinois’ population decline is the second-longest streak in the nation, and it 
is solely from more Illinoisans leaving than people arriving from other states. 
In 2019 alone, 105,000 Illinoisans left on net: roughly 288 residents per day, 
or one person every five minutes.
 Lawmakers are asking voters on Nov. 3 to approve a massive 
progressive income tax hike, operating under the assumption that it would have 
no effect on the migration decisions of the very group that is twice as likely 
to leave. 
 
to 
top of second column]But taxes are the No. 1 reason Illinoisans say they want to leave. And Illinois 
Gov. J.B. Pritzker is specifically proposing to raise $3.7 billion in state 
taxes on those who are already leaving at double the rate. So what is the 
reasoning behind Pritzker’s contention that his tax hike won’t push out more 
Illinoisans?
 
 Other states’ experiences show what a progressive income tax hike would likely 
do to Illinois.
 
 New York was the only state to see a higher share of residents making more than 
$200,000 leave in tax year 2018 than left Illinois. New York Gov. Andrew Cuomo 
put it this way: “‘Tax the rich! Tax the rich! Tax the rich!’ We did. Now, God 
forbid, the rich leave.”
 
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 California already conducted a similar experiment 
			with state tax policy, and nearly half of the expected revenue 
			evaporated along with residents. Instead of increasing funding for 
			education and putting the state on a firm fiscal footing as voters 
			were promised, a major progressive income tax hike in California was 
			diverted mostly to pensions. Funding for many services now makes up 
			a smaller share of the budget than before. A new paper by Stanford University researchers 
			shows wealthy residents were about 40% more likely to leave after a 
			progressive income tax hike passed in 2012. Those departures and 
			other responses to higher taxes eliminated 45.2% of the revenue 
			California expected to get from high earners. The “temporary” tax is 
			still in place, and the continuing budget pressures have hurt 
			California’s middle class.
 In the past 30 years, three states dumped their progressive taxes 
			and only one has imposed a progressive tax: Connecticut. That state 
			saw a 13% spike in middle-class income taxes, 64,000 more residents 
			in poverty, 362,000 fewer jobs and a $10 billion hit to 
			Connecticut’s economy.
 
 The experiences of other states with progressive income tax hikes 
			show that if Pritzker tries to treat Illinoisans as “cash cows,” 
			they will likely leave before he gets to milk them. Eliminating 
			Illinois’ constitutional flat tax protection will give lawmakers 
			greater power to tax middle-class Illinoisans to make up for lost 
			revenue.
 
 There is no reason to believe Illinois can escape the history 
			lessons of other states, or that residents won’t do what they 
			already said they would do and have been doing for six years – 
			fretting about taxes and leaving.
 
            
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