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Flat Taxes are Big in the Former USSR, but Have They Worked?


Economists caution that you can't necessarily translate flat tax success stories in Russia into an American context.

GOP presidential candidates Herman Cain, Gov. Rick Perry, and Newt Gingrich have all introduced proposals for flat taxes, which aim to tax everyone at the same rate. The idea is to simplify the tax code, getting rid of loopholes and reducing entitlements and deductions. Gingrich and Perry have both promised that Americans will be able to file their taxes on a postcard.

Flat income taxes have been criticized for putting a greater tax burden on middle-income people while cutting taxes for the rich. Critics say they would bring in less revenue for the government to fund social programs (though as Rachel Weiner puts it at the Washington Post, "of course, for many conservatives, a drastically smaller government is a feature, not a bug.)

The U.S. briefly tried out a flat 3 percent income tax between 1861 and 1872; a flat income tax was reintroduced in 1894, but was struck down by the Supreme Court. Instead, the U.S. has had a graduated income tax since World War I. We haven't really gotten to see how a flat tax would play out here, and it's a good time to take a look at other countries that have adopted flat taxes, and how it worked out for them.

Flat Tax Success Stories?

The majority of countries that have adopted flat taxes in recent years are former Soviet Bloc countries. Throughout the 1990s and early 2000s, six former Soviet republics and three other Eastern European countries flattened their income tax rates. Some, like Russia, adopted a flat personal income tax but kept a different rate for corporate income – others like Estonia and Slovakia instituted a flat tax on personal and corporate income. Many of these countries also have a value-added tax (VAT) in addition, which taxes the difference between the final cost of a product and the cost of the materials used to make it.

Estonia adopted a 26 percent tax on personal and corporate income in 1994. The country had GDP growth of 11.7 percent in 1997, and continuously grew between 7 and 10 percent throughout the early 2000s, though there are of course a lot of factors that contributed to that. (U.S. GDP growth was between 2 and 4 percent over that period).

In 2001, Russia switched from a system that taxed people at rates of 12, 20, and 30 percent to a 13 percent flat income tax. Adjusted for inflation, revenue from Russia's personal income tax increased by 26 percent [PDF] in the year after a flat tax was implemented, and increased by nearly one fifth as a percentage of GDP. Russia also saw strong real GDP growth throughout the 2000s, with rates between 6 and 8 percent from 2003 to 2007.

Seeming success stories like these had American supporters of flat taxes crowing. A 2005 Wall Street Journal editorial declared that "the world is flat;" the Cato Institute proclaimed a "global flat tax revolution."

But economists caution that you can't necessarily translate these experiences into an American context.

Why Flat Taxes Gained Traction in the Former Soviet Union

For one thing, those reforms came at a time of massive economic change, as former Soviet republics transitioned from command economies to the free market, and Eastern European countries made other systemic changes. Estonia, which introduced a flat tax in 1994, had just started transitioning to a capitalist system three years before.

"One of the fastest growing countries in Eastern Europe has been Slovakia. They introduced flat taxes in 2004, but they also then liberalized the labor market," said Anders Åslund, a senior fellow at the Peterson Institute for International Economics. "Countries with flat income taxes have had high growth, but you can't isolate the causality."

For one thing, adopting flat taxes was also a way for politicians to mark a new era and separate themselves from the former regime. "It was a way of signaling a commitment to the free market," said Michael Keen, a senior researcher at the IMF who contributed to a 2005 study of Russia's flat tax reform.

Flat tax reforms also caught on because a simpler tax helped to improve collection rates in countries that had large shadow economies and entrenched corruption. Indeed, among industrialized countries, Russia still ranks among the most corrupt.

For those at the top of the income spectrum whose rate had dropped from 30 percent to 13, there was less of an incentive to evade taxes. The simplified system also left less room to lie on tax forms.

"The more complex the tax system, the more avenues there are for discretion both by people on the revenue side of the collection system and the people paying the taxes," said Gary Hufbauer, also a senior fellow at the Peterson Institute for International Economics who formerly worked on tax policy at the Treasury Department.

More Than Just Tax Reform

While the IMF study found an overall improvement in tax compliance in Russia – more people were reporting their incomes and paying taxes appropriately – they found that this didn't account for the entire increase in revenue. "The general view among those who have looked closely at the data was that what happened to revenue was a reflection of broader developments to the Russian economy at the time," Keen said.

An overall increase in wages contributed greatly to increased tax revenues. According to the 2005 IMF study, "Our analysis suggests that the strength of [personal income tax] revenues in Russia over this period was largely driven by an increase in real wage rates unrelated to the reform." [PDF; see p. 40]

Though proponents of a flat income tax speculate that a lower consistent tax rate would motivate people to work harder, the 2005 IMF study also found that that wasn't the case in Russia. "Based on what we found and what others have found since, there has been very little effect on actual work effort," Keen said.

How Do the Candidates' Proposals Compare?

Cain and Perry's tax proposals also aren't quite like the ones enacted in Eastern Europe. Former Tax Policy Center director Len Burman has a helpful FAQ that clarifies this issue:

Yes, so-called "flat taxes" are common on Eastern Europe and Russia, but they're flat rate income taxes. They include capital income, such as interest, dividends, rents, and royalties in the base as well as wage income. Because high-income taxpayers receive most of the capital income, this makes those flat taxes more progressive than the flat tax periodically proposed in the US. (For example, it was the centerpiece of Steve Forbes's presidential bid. Forbes just endorsed Perry.)

Both Gingrich and Perry are proposing an optional flat income tax (Gingrich's at 15 percent, Perry's at 20), which allows you to choose between paying the flat rate or paying according to the current system. Creating a two-tiered tax system, Åslund pointed out, doesn't exactly simplify the tax code. Perry's proposed income tax also isn't totally flat, since there are some types of income it doesn't touch – for instance, investment income.

Cain's tax plan is flatter – he's proposing a 9 percent personal tax, a 9 percent business tax, and a 9 percent federal sales tax to make up for the decreased revenues. Under current tax law, sales taxes are already levied by the states [PDF], with local taxes coming on top of that. Cain's plan also eliminates the Social Security and Medicare payroll taxes. (Cain has expressed interest in privatizing Social Security, and endorsed Paul Ryan's plan to privatize Medicare.)

It's also worth noting that sending tax returns in on postcards-as Gingrich and Perry have pledged-could cause a new set of problems. "In tax affairs, what you want is precision in terms of defining what's income or what the tax base is and so forth. You can't do it on a postcard," Hufbauer said. Leaving out the details, he cautioned, leaves room for poor administration or tax evasion.

What a Flat Tax Would Do in the U.S.

Experts say we probably wouldn't see any immediate spike in personal income tax revenue if the U.S. were to adopt a flat income tax. Instead, they say, it's likely the candidates' plans would lead to plummeting revenues for the first several years.

"Any growth effects, even in the best of circumstances, that's a five year proposition," Hufbauer said. "And how much growth is a matter of debate."

Analyses from the non-partisan Tax Policy Center project that Cain and Perry's plans would both lead to decreased revenues; they haven't yet scrutinized Gingrich's plan. Of the two, Perry's plan would have more of an impact on government coffers, cutting projected revenue by about 27 percent by 2015.

The Tax Policy Center also concluded that Perry and Cain's plans will mean an increased tax burden on middle- and low-income families. Cain has since modified his plan so those below the poverty line are exempt from the individual tax. A Tax Policy Center researcher told the Washington Post that poor families would still see a tax increase under the plan, albeit a smaller one.

The Gingrich and Perry plans also have some exemptions and deductions to make them less regressive. Gingrich's plan allots everyone a $12,000 personal deduction, and counts charitable donations and homeownership as tax deductible; Perry's includes a $12,500 personal deduction, and deductions for "charitable contributions, mortgage interest, state and local taxes, and social security benefits."

Editor's Note: This article by Braden Goyette was originally published on

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