A Flat Tax Is a Fair Tax


One of the most contentious political battles of the 2020 election cycle involves the Illinois “Fair Tax” ballot amendment. Supported politically (and financially) by Illinois’s billionaire governor, J. B. Pritzker, the amendment seeks to remove a provision in the Illinois constitution that requires all income taxes to be flat—that is, held at a constant rate regardless of the amount of income earned by any taxpayer. Currently, all income earned in Illinois is taxed at a 4.95 percent rate. The amendment requires a simple majority vote to be passed.

The amendment does not offer any specific progressive rate scale, but allows for increasing tax rates to be applied to successive tiers of a taxpayer’s income. Notably, the initial legislative plan on which the amendment is largely based—and which was proposed by the Democrat-controlled legislature—is a hybrid between a flat and progressive scheme. Most earners would be subject to progressive rate scales starting at 4.75 percent for the first $10,000 of income earned. Then. as income increases, so would the tax rate, maxing out at 7.85 percent. The legislative plan maintains a flat tax for the financial elite: Individuals reporting income above $750,000 and couples with joint incomes above $1,000,000 would pay a 7.95 percent rate from their first dollar.

This change in tax structure is held out as the fairest because it puts onto the rich the burden of shoring up Illinois’s rickety finances. The argument goes that the poorest 20 percent of the public are disproportionately exposed to high state, county, and local sales taxes, which total 10.25 percent in Chicago. This leads to a regressive system overall, where the poor pay an effective tax rate of 14.4 percent, while the top 1 percent pay only 7.4 percent. The obvious rejoinder is that, in total dollars, the rich pay far larger amounts in all taxes, much of which is used for transfer payments from which they do not benefit.

The Illinois initiative has prompted the New York Times to weigh in editorially by calling on Illinois voters to “Say yes to fairer taxation.” The Times argues that “most Americans accept the commonsense case for progressive taxation: those who have more ought to contribute more to the society that is the foundation of their prosperity.” But this proposition turns out to be wrong. Even under a flat tax, the rich contribute vastly more to society than the poor in two ways. First, someone who earns twice as much as another will pay twice as much in income taxes. Second, rich entrepreneurs supply the capital that allows others to benefit from higher levels of production through lower prices and higher wages. The poor do not fund the infrastructure for the rich; the rich contribute more to taxes than the poor even if their contributions are a smaller fraction of their wealth. Elizabeth Warren once famously said that “you [the rich] moved your goods to market on roads that the rest of us paid for.” But that’s wrong. It’s the rich who paid for the bulk of the cost of the roads.

In light of these complications, it’s difficult to make any solid case for some ideal progressive tax. Besides, no one knows what the ideal rate of progression should be, leaving it unclear whether a top 7.99 percent rate is too shallow, too steep, or just right. If the progressivity is set too low, it raises too little money to be worth the additional administrative costs it imposes. But if the taxes turn out to be too steep, they will disincentivize labor and lead taxpayers to take evasive measures to split income through trusts, partnerships, and other devices. Moreover, the higher tax rate may lead high earners to simply leave Illinois altogether for a lower-tax state, such as could happen with Chicago billionaire Ken Griffin, who has contributed $20 million to the campaign against the tax amendment.

The Times pooh-poohs the argument that Illinois should cut spending rather than increase taxes by insisting that people “flock to high-tax jurisdictions that provide services and amenities,” thereby creating a favorable business climate. What really matters, according to the Times, is how the additional revenues will be spent. But the Times muddles its account of a progressive tax system by rejecting the benefit theory of taxation, which holds that people are taxed according to the benefit received from government services. The basic function of taxation in this model is to provide the non-excludable public goods that ordinary markets are unable to supply, including the preservation of law and order, the provision of infrastructure, the regulation of monopolies, and the operation of a judicial system. Ideally, each person receives a gain from those non-divisible services that exceeds his taxes, leading him to acquiesce to the regrettable necessity of taxation in order to live in a well-ordered society, rather than an anarchic state in which no one pays any taxes.

In practice, flatter tax rates are the best proxy for that ideal. By contrast, the progressive overlay is at its core unconcerned with providing public services but is instead chiefly aimed at achieving redistribution from rich to poor.

Some progressivity may be tolerable, or even desirable, where it corrects for regressivity elsewhere in the tax system. Unfortunately, that program, if pushed too far, will have dire consequences for the fiscal health of the economy by stripping a state’s tax base. Outsiders who flock to Illinois as taxes become more progressive are anticipated net gainers from the tax reform and subsequent expenditures. On the flip side, higher earners will tend to flee the state because they have little appetite to provide these benefits to others. This happened in Maryland over a decade ago, when its sharp income tax increase led to a 30 percent decline in millionaire filers and a 22 percent decline in tax revenues from that same group. The anticipated $106 million revenue haul from the tax increase turned into a $257 million loss.

Illinois is already subject to just these economic pressures and more. For example, its population declined from 12.90 million people in 2013 to about 12.65 million in 2020, one of only four states to achieve that dubious distinction. (Low-tax states like Texas and Florida saw population surges during the same period.) This outcome is no surprise, given that Illinois is ranked the ninth-worst state for business in the United States, an unenviable position sure to be exacerbated if the “fair tax” amendment becomes law.

The Times acknowledges Illinois’s long history of fiscal mismanagement. But the paper takes the sunny position that the progressive tax increases will raise revenue and increase funding for much-needed services, such as high-quality education. This argument is doubly wrong-headed. The Illinois fair tax does not earmark the new revenue to any particular program; and even if the funds were, for instance, earmarked for education, there is nothing to prevent a huge fraction of those funds from being captured by teachers’ unions through an exertion of their monopoly power, or for some students to take jobs out of state upon graduation. Furthermore, fiscal stabilization is not guaranteed even if the “fair tax” raises funds. A 2011 tax hike, for example, raised $32 billion in additional revenues, but reduced the deficit by only $1.3 billion, from $7.9 to $6.6 billion. The bulk of the tax revenues were quickly diverted to new spending programs.

Two simple explanations account for why both Pritzker and the Times have gone astray. First, they implicitly assume that the major impact of any tax increase is distributional. In their fairy-tale version of the world, productive activities will remain just as they were before; the size of the economy will remain constant even as the tax rate increases. But changes in taxes alter the incentives for both public officials and private parties alike. The former will use the additional funds to curry favor with their preferred constituents in exchange for political votes. At the same time, high-income people will alter their business plans and personal expenditures to minimize their tax burden. And these high earners are likely to perceive the first set of tax increases as a harbinger of tax hikes to come, intensifying their tax planning efforts.

Second, Pritzker and the Times underestimate the power of the flat tax. By applying a single rate on the incomes of all taxpayers, the flat tax requires that voters impose a proportional tax increase on themselves while seeking to raise revenue from their high-income neighbors. Such a move, of course, proves less attractive. To be sure, the unlimited ability of the state to enact various transfer programs partially undermines the effectiveness of the flat tax. But progressives want to remove the constraint imposed by the flat tax because they know that people are less willing to raise taxes on others when they have to raise them on themselves. It’s just for that reason that Illinois and other cash-strapped states should resist the siren call of a progressive tax.

© 2020 by the Board of Trustees of Leland Stanford Junior University.

Published in Law
Like this post? Want to comment? Join Ricochet’s community of conservatives and be part of the conversation. Get your first month free.

There are 7 comments.

Become a member to join the conversation. Or sign in if you're already a member.
  1. OmegaPaladin Moderator

    I voted against it.  But this is Illinois, only the zombie voters matter.

    • #1
  2. I Walton Member
    I Walton

    All taxes and revenues at all levels  are far excessive.   At the Federal level we’d be better off with no tax, at most with just a consumption tax, but neither will happen.  However, if we somehow win this election, we’ll have to make two major critical changes that might save the Republic,  remove all Federal money and State and Federal control from public education, and,  insist that  Bureaucracies cease legislating their own power while we cut them drastically.

    • #2
  3. Giulietta Coolidge

    I resisted the siren call. Thanks for the article!

    • #3
  4. OccupantCDN Coolidge

    The real problem with a flat tax – isnt the tax, its the deductions.

    I suggest a flat tax – with a flat deduction package. Get rid of all the deductions, tax credits and tax shelters that encourage malinvestment. My suggestion is that every person or household gets a deduction of 40% of the median income in their state. So a  person living in NY earning a NY sized salary of say $120 000, would get a much larger deduction than someone living in Alabama earning an Alabama sized $50 000. This would mean that the poor  would pay no taxes in either state, and even the middle class wouldn’t be overly burdened. (if you file jointly – you’d get to deduct 40% of median household income from your state – if you file individually you’d deduct 40% of median individual income from your state…)

    We should also have a real household income tax – so that all members of families file jointly, like working children who live at home…

    Why 40% of median income? Because its important that majority pay tax and know they’re paying taxes so that they’ll vote responsibly. If you look at the worst run cities or states in the US I think you’d find that they draw a vast majority of their taxes from a very small minority.

    This why NYC is in such a panic – they get 80% of their revenue from something like 20 000 people. If even a few hundred leave – NYC’s budget takes a massive disproportionate hit.

    • #4
  5. Illiniguy Member

    It appears that the measure is going down, so now is the perfect time to examine the entire taxing structure in Illinois. I sent an open letter to my colleagues before the vote which put the amendment on the ballot. It didn’t help much, maybe they’ll pay attention now:


    • #5
  6. Giulietta Coolidge

    Illiniguy (View Comment):

    It appears that the measure is going down, so now is the perfect time to examine the entire taxing structure in Illinois. I sent an open letter to my colleagues before the vote which put the amendment on the ballot. It didn’t help much, maybe they’ll pay attention now:


    Let’s beat this dead horse: nothing can be done when the public sector pensions are sky-high. When everything is promised to everyone, it’s seems that the problem is intractable. And then the tax burden just gets heavier and more people leave. 

    • #6
  7. DonG (skeptic) Coolidge
    DonG (skeptic)

    I prefer a flat tax with an offset.  Those making under some threshold do not pay taxes.  However, they don’t get to vote either, unless they are active military.  Those with blood and treasure on the line get to vote.

    • #7