Flat Tax

A taxing system that has one single tax rate irrespective of the income level and progressive/regressive adjustments.

Author: Abdelmoussaour Boukhatem
Abdelmoussaour Boukhatem
Abdelmoussaour Boukhatem
Reviewed By: Aditya Murarka
Aditya Murarka
Aditya Murarka
Aditya Murarka is a proactive finance professional pursuing a Bachelor of Commerce (Hons) at St. Xavier's College, Kolkata. Aditya has excelled in financial management, clearing CFA Level-1, and securing accolades in Chartered Accountancy. His diverse professional experience spans private wealth management, strategy consulting, and live projects in sectors like customs, manufacturing, and food delivery. Aditya, was a Financial Research Analyst and Chief Editor at Wall Street Oasis, exhibits expertise in statistical analysis, data analytics, and valuation. His leadership roles in the Consulting Club of his college and TEDx showcase strong team management and strategic skills. Aditya is well-versed in regression analysis, portfolio management, and has technical proficiency in Python, MS PowerBI, and more. Aditya is a versatile professional with a solid foundation in finance, strategic consulting, and leadership.
Last Updated:May 29, 2024

What Is A Flat Tax?

A Flat Tax is a taxing system that has one single tax rate irrespective of the income level and progressive/regressive adjustments.

Under a flat tax system, everyone pays the same tax rate regardless of income level. This tax, in most cases, imposes the same tax rate on all taxpayers and allows no exclusions or exemptions; however, some politicians have suggested proportional tax systems that allow limited deductions.

Most proportional tax systems or plans do not allow taxpayers to deduct dividends, payouts, capital gains, and other transactions.

Exemptions make systems progressive, whereas a maximum taxed amount makes implementations reactionary. Various tax regimes are called "flat tax," although they differ vastly. 

The distinguishing feature is the availability of only one non-zero tax rate, as opposed to several non-zero rates that fluctuate based on the amount subject to taxes.

This system is most commonly mentioned in a progressive income tax, although it can also apply to taxes on consumption, property, or transfers.

In a flat-tax system, everyone pays the same proportion of their income, and most plans have no or few exemptions. 

Almost all the ideas have a low tax rate, which is much lower than the top marginal tax rates; because taxes will be generally lower, this provides some justice to the tax structure. 

According to supporters, the Internal Revenue Service (IRS) tax law could be reduced from hundreds of pages to just a handful with a proportional tax, allowing IRS employees and lawyers to concentrate their talents elsewhere and making the unpleasant experience of filing a tax return a mere recollection. 

Conversely, a flat-tax system would have the net consequence of depriving the federal government of tax income. 

This is because the advantages mostly favor higher-income taxpayers, who would pay significantly less. At the same time, lower-income earners will experience minor reductions in their tax burden, if any, or may even see an increase. 

While the advocates of this tax system think that reduced taxes across the board would lead to prosperity and employment creation, periods of high taxation, such as 92 %, have also been linked to a healthier economy, so the judgment is yet out.

Some states currently levy a proportional tax on personal income, albeit none of them is more than 6%. FICA taxes, which pay for Social Security and Medicare, are similarly proportional, levied at 6.2% and 1.45% per employee, correspondingly, by the federal government.

Earned income is exempt from many flat-tax ideas, so the interest you make in a money market account is not taxed. 

Key Takeaways

  • A flat tax is a tax system that imposes a constant marginal rate on all taxpayers, regardless of their income level. This stands in contrast to progressive tax systems, where tax rates increase with income.
  • Several countries and jurisdictions, including Estonia and Latvia, have implemented flat tax systems. Each applies a single tax rate to individual and/or corporate income.
  • Some flat tax proposals include provisions for basic exemptions or allowances to ensure that low-income earners are not unduly burdened. These modifications combine the simplicity of a flat tax with some degree of progressivity.
  • Flat taxes may incentivize work by ensuring that additional income is not taxed at higher rates, potentially leading to increased labor force participation and productivity.

What Is a Flat Tax System?

A system compels all taxpayers to contribute the same percentage rate regardless of income. Those below the poverty threshold are usually excluded from most flat tax schemes.

Many states in the United States and some countries, notably Russia, Latvia, and Lithuania, have adopted this tax system. The federal government of the United States has a progressive income tax system, which means that the proportion of taxes payable rises as the taxpayer's wages boosts.

A proportional tax is something like a sales tax. The tax is a set proportion of the price of the goods or services. Everyone pays the same amount, rich or poor. Most sales tax rules exclude vital commodities like food to ease the burden on the poorest customers.

A flat income tax is much easier to understand than a progressive taxation system. The tax is levied on money that is deposited into a household.

Although there are many variants, this tax system usually eliminates most tax benefits, such as the mortgage interest deduction or the child tax credit. Interest, capital gains, and dividends are generally exempt from extra taxes. 

As of 2022, nine states in the United States have a flat income tax scheme. 

Colorado, Illinois, Indiana, Kentucky, Massachusetts, Michigan, North Carolina, Pennsylvania, and Utah are among the states involved. In Pennsylvania, the rate is 3.07 percent, whereas in North Carolina, it is 4.99 percent.

A flat tax is similar to Social Security. In the tax year 2022, employees pay 6.2 percent of their wages in Social Security tax, up to a maximum of $147,000. 4 While all proportional taxes are regressive, the Social Security tax is significantly higher because of the ceiling.

This tax is referred to on employees' W-2 forms as the FICA tax. Self-employed persons pay a similar SECA tax and an employer's contribution on behalf of their workers.

Employees who earn more than $200,000 pay an Additional Medicare Tax of 0.9 percent on top of the 1.45 percent they pay to Medicare (which is also included in FICA) (for a total of 2.35 percent). As a result, rather than being a flat or regressive tax, the Medicare element of the FICA tax is progressive. 

Pros Of Flat Tax

The flat tax system has several advantages, including encouraging people to file their taxes and eliminating other types of taxes that can be levied. The following are the pros of the flat tax system.

1. It clears up any ambiguity

When a progressive tax system is in place, tax filers must use the most recent income brackets to complete their returns appropriately. 

For the 2017 tax year, there were seven distinct tax brackets in the United States. Every household progresses through the tax brackets until they achieve their desired income level. 

That implies they would pay 10% on the first $9,325 of their income, then 15% on the next $9,325 up to $37,950, and so on. In a proportional tax system, there would be only one marginal rate.

2. It would save money on tax preparation

According to CBS News, half of all taxpayers pay a professional to handle their taxes and file their returns. About seven out of ten Americans are concerned about submitting their taxes, the most common being that a mistake may result in an audit. 

In 2017, filing a standard Form 1040 with no standard deduction and a state tax return cost an average of $176. If deductions were necessary, the estimated price of filing was $273. A simple formula would be necessary to estimate tax liabilities under this tax system.

3. Supplementary taxes would be abolished

Because a taxation system produces income inequalities, the government must rely on various additional sources of revenue to fund its activities. 

Estate taxes, capital gains taxes, and even double taxation on some types of income exist. In a proportional tax regime, only remuneration is subject to the yearly tax. Dividends, interest, and other wealth growth can be removed.

4. It has the potential to have a trickle-down influence on each class

With more money, you will be able to invest more. People with means are encouraged to establish new possibilities that grow this revenue stream by creating incentives to generate money through interest and dividends. 

In principle, when additional investments are sought, this generates new opportunities for many households across the country to make money. 

Although the labor movement would still be paid more in such a situation, everyone would be better off, provided they were willing to participate in the labor force.

5. It would encourage people to follow tax regulations more closely

The current system of taxes in the United States has approximately 70,000 pages of legislation overseeing the process. Even if compliance is the goal, people need help to stay on track. 

Due to the obvious possible lower tax rate, the proportional tax may attract more offshore capital to return to the national economy. Both approaches encourage a process that involves, which means the government will have more income to work with. 

Cons Of Flat Tax

The flat tax system also has some disadvantages, including making people pay their taxes regardless of their income levels and altering the population's financial and economic profiles. The following are the cons of the flat tax system.

1. It makes low-income taxpayers responsible for a more significant share of tax obligations

Although a flat tax appears fair in terms of percentage, because a 20% tax is applied to all incomes, a lower-income household's discretionary income is impacted more. With a yearly income of $20,000, a $4,000 tax payment would leave only $16,000 (minus any state taxes) for spending.

With a budget of $200,000, $160,000 would be available to address demands. It may encourage some families to generate more money, but only some can do so.

2. It disregards the wealthiest people's income resources

Only earned income is taxed in most flat tax regimes. Dividends and interest may provide a large portion of the income for the rich.

Because they did not work a full-time position to generate earned income, someone may earn enough money from interest and dividend payments to owe no taxes.
Low-income families are unlikely to have this option, putting even more of the burden of state funding on their shoulders.

3. Millions of households' financial profiles would be altered

Many people bought houses to deduct their interest expenses from their taxable income. Many families' financial profiles have already been affected because of tax reforms for the 2018 filing year in the United States, which increased taxable earnings.

A flat tax would exacerbate the problem. In addition, because many homes are purchased with a 30-year mortgage, a sudden change in how finances are calculated might negatively influence the housing market. 

4. It has the potential to lower the GDP

Although the passage of a proportional tax resulted in financial gains for Hungary, it also immediately declined the country's gross domestic product. Hungary's GDP dropped by 1.6 percent in the first year of the flat tax. 

This occurred because consumers invested spare cash in products they already needed or toward debts they owed. The GDP may eventually expand at the same pace as income, albeit this has yet to happen. 

5. It amplifies the effects of changes at all economic levels

When an economy is robust and growing, the impacts of a proportional tax regime on wealth are likewise substantial. This allows households to improve their wages, pay off debt, save more, and spend more. 

Likewise, the inverse is true. With this reduced structure, there are fewer options and, hence, fewer employment opportunities. Fewer individuals enter the work field, lowering everyone's and the government's income.

Examples Of Flat Tax

Russia was the largest country in the world to utilize this type of tax, with a personal income tax of 13%. 3 To increase tax income, the country switched to a progressive tax in 2021. 

Estonia, Latvia, and Lithuania were among the nations that had a proportional tax system, although Latvia and Lithuania have since switched to a progressive tax structure.

Greenland's tax system is based on a flat rate that can be changed annually. Individual rates vary by town but are now 36%, 42%, or 44%. The payroll tax is a sort of flat tax in the United States. 

The Internal Revenue Service (IRS) assesses a payroll tax on all wage earners, specifically the Federal Insurance Contributions Act (FICA) tax of 15.3%. 

The money is used to keep the Social Security and Medicare systems running. The tax is shared between employees and employers: employees pay 7.65% of the FICA tax, while their employers pay 7.65%. 8 Individuals who are self-employed pay the entire cost on their own. 

This tax is known as a flat tax since it applies the same rate to all wage laborers regardless of their tax level. In 2021, however, only wages under $142,800 will be liable to the Social Security part of the FICA tax; in 2022, that threshold will climb to $147,000.

Business mogul Steve Forbes, the editor-in-chief of Forbes magazine, was among the most vocal champions of the proportional tax. Forbes has run for politics multiple times and routinely mentions the flat tax as one of his policy recommendations in his journal.

Forbes proposes a single-payer, 17% proportional tax on personal and company incomes, with exemptions for those earning less than a fixed sum. This would slash Forbes' tax burden in half, saving him millions per year. Forbes is worth roughly half a billion dollars. 

On the other hand, those on the lower end of the income scale would see a relatively modest reduction in taxes if they feel the difference at all.

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