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ECO 4113 FISCAL ECONOMICS CHAPTER 10 1 Prof. Dr. Yeşim Kuştepeli TAXES ON INCOME TAXES ON INCOME The term income tax registers in most people’s minds as the individual income tax, but several other kinds of taxes are also based directly on income. Prof. Dr. Yeşim Kuştepeli The income tax is the largest source of government revenue. The Social Security payroll tax and other payroll taxes are also income taxes, as is the corporate income tax. Many local business license taxes are income taxes because they are based on the firm’s gross receipts,or income. 2 WHY TAX INCOME ? Prof. Dr. Yeşim Kuştepeli For most of human history, taxes have been collected where “tax handles” can be found -a visible asset,a transaction,a border crossing. Property taxes ,poll taxes, sales and excise taxes,and tariffs or tolls have a much longer history than income taxes. In many cases, the choice of sales rather than income tax as the primary revenue source reflected a high degree of noncompliance with the income tax. Income taxes depend heavily on the voluntary cooperation of taxpayers and employers, backed by threats of audit and penalties for at least some tax cheaters. 3 Progressive income taxes are the only major revenue source with an elasticity greater than 1, that is, for which a %1 increase in income leads to more than a %1 increase in tax revenue. Prof. Dr. Yeşim Kuştepeli If, however, the government is able to generate the paper trail necessary to administer an income tax, this tax has certain significant advantages. It can be a highly productive revenue resource. This tax lends itself to fine-tuning both in terms of equity and in terms of achieving social goals of encouraging desirable activities. It generates a regular flow of revenue to the government through withholding, unlike the property tax,which comes in all at once for most local governments. It even provides information that enables tax collectors to do a better job of enforcement on other taxes. 4 MEASURING INCOME FOR TAX PURPOSES Wealth is a stock of assets, income is a flow of assets. Prof. Dr. Yeşim Kuştepeli There are several important relationships between the stock of wealth in a household and the flow of income. 1) wealth or assets generate income. 2)any flow of income into the household must by definition either be consumed or saved, and any consumption or saving must be financed by an inflow of revenue from earnings,income from capital (interest,dividends,rents), gifts,asset appreciation, or increased debt. 5 This definition would incorporate all flows into the household minus any new debt incurred, because any increase in debt reduces the household’s net wealth. Prof. Dr. Yeşim Kuştepeli One possible definition of a household’s income is the change in a household’s net wealth over the course of a year plus consumption spending. This definition of income is broader than most governments would choose to use as a base for an income tax, but it does provide a starting point from which adjustments can be made. Adjustments are made primarily for these three reasons: efficiency, equity, and costs of collection/compliance. Policy makers have to bear in mind that any exclusion of categories of income from the base will reduce the base and either reduce potential revenue or require a higher tax rate to achieve the same revenue. 6 EFFICIECY ISSUES IN INCOME TAXATION An income tax will have a substitution effect that leads to replacing taxed working hours with untaxed leisure time, and an income effect because it now requires more working hours to earn the same take-home pay. Prof. Dr. Yeşim Kuştepeli Taxing income but not leisure is the fundamental source of distortions in choice that results from any form of income taxation. Different tax payers will react differently to the imposition of income taxes, but all of them will see some distortion of their choices relative to what they would have done in the absence of an income tax. Creating exclusions or favoring certain sources of income over others provides an incentive to arrange one’s sources of income so as to minimize the tax liability. 7 Prof. Dr. Yeşim Kuştepeli If dividends are taxable and capital gains are not, there is an incentive for taxpayers to encourage firms in which they hold stock to focus on creating capital gains in the form of higher stock prices instead of distributing net earnings of the corporation in the form of (taxable) dividends. If some financial assets receive highly favorable tax treatment (such as municipal bonds or tax-deferred annuities), funds will flow into those assets at the expense of other assets with higher pretax returns. These distortions of household decisions in response to tax rules are among the most important efficiency effects of income taxation. If efficiency were the only goal ,the tax code would use the broadest possible base for the income tax in order to minimize such changes in behavior. 8 The broadest possible base, however, is a difficult standard to maintain when the tax collector must deal with actual flows of revenue through households. Prof. Dr. Yeşim Kuştepeli Such a broad base would also make it possible to collect the same revenue with lower rates, reducing those distortions in income-leisure choices that rise with the square of the tax rate. Some kinds of income create greater challenges in tracking and collecting than others. If such unrealized capital gains were taxed, the income tax collector would be forced to get into the business of assessing the value of household assets (including real estate), and the cost of administering the income tax would rise astronomically. 9 The result is a greater tax burden than would occur if capital gains were taxed as they accrued. Prof. Dr. Yeşim Kuştepeli If capital gains on assets are excluded from the taxable income until the assets are sold, then there is a “lumping” of income in a single yearwhen an asset is sold, often pushing the taxpayer into a higher tax bracket. The tax treatment of capital gains is one of many challenges for designing an efficient income tax. 10 EQUITY ISSUES IN INCOME TAXATION All taxes raise issues of equity, but equity is a bigger issue in income taxation than in taxation of consumption or wealth. Both horizantal and vertical equity are important issues in income tax design. Prof. Dr. Yeşim Kuştepeli Why? 1) it is possible to fine-tune the distribution of the burden of the income tax more closely than most other taxes, 2) because it is one of the few taxes that lends itself to progressivity. 11 Horizontal equity means treating people equally when they are in equal economic situations. The definition of equal economic situations is closely linked to equal annual income flow. The income flow is only a starting point in defining equal situations, because other factors affect the rtelative taxpaying ability of two households with the same income flows. There may be a difference in wealth, or household size, or other obligations (medical expenses, caring for aging parents, child care expenses,etc.) that should be taken into account. Such equity concerns account for a significant amount of the volume and complexity of the current federal income tax code. Prof. Dr. Yeşim Kuştepeli 12 In the case of the income tax, some would argue that proportional taxation constitutes vertical equity. Others would argue that vertical equity should be viewed as a function of the tax system as a whole, not just one particular tax. Prof. Dr. Yeşim Kuştepeli Vertical equity means treating people with an appropriate degree of difference based on differences in their economic situation or ability to pay. Because many other taxes in the system are regressive, a progressive income tax serves as a counterweight in the overall system, moving it toward proportionality. 13 Progressivity can be built into an income tax in two different ways. 1) to exclude a certain base amount of income from tax through exemptions, exclusions, or deductions. The first method increases equity at the expense of complexity, which means higher collection/compliance costs. The second method, progressive rates, may improve equity at the expense of efficiency. Progressive rate structures increase the distortions in people’s decisions and cause them to accelerate or postpone some of those actions on the basis of the tax bracket they would find themselves in one year versus another. Prof. Dr. Yeşim Kuştepeli 2) to have a graduated series of tax rates that apply to increments of income. 14 COLLECTION AND COMPLIANCE COST ISSUES On the other hand, making adjustments in the tax base to accomodate horizontal equity concerns makes the tax law more difficult to administer and more confusing for the taxpayer to comply with. A progressive rate structure, which is put in place in the interest of vertical equity, makes the tax liability more difficult to compute. Prof. Dr. Yeşim Kuştepeli Creating a broad tax base for efficiency reasons requires more effort by both tax collectors and taxpayers to keep track of a variety income flows, increasing both collection and compliance costs. 15 Other forms of income taxes, such as payroll taxes, are simpler to administer and to comply with for a variety of reasons. In some cases, for local income taxes and Social Security taxes, a single flat rate applies, and most of the collection is through payroll withholding, often without a need to file a return. In the case of many state income taxes ,once the federal return is complete, the additional effort required to file a state return is very small. Prof. Dr. Yeşim Kuştepeli The low collection cost is largely because much of the cost is shifted to the taxpayer and the taxpayer’s employer, who must maintain records and fill out various forms in order to comply with the tax. 16 DEFINING TAXABLE INCOME The process of determining federal income tax liability is conceptually simple, even though the actual process may be very time consuming. The taxpayer must then determine which of these income sources need to be reported as income and which do not. Those kinds of income that are not included in gross income are referred to as exclusions. Among the income sources that typically do not have to be reported at all are insurance claims income, most employee fringe benefits, scholarships, gifts received, and interest on state and local bonds. Prof. Dr. Yeşim Kuştepeli The first step is to determine gross income-income from all sources,including wages, salary, rents, royalties, pensions, interest, dividends, self-employment earnings, gifts and scholarships. 17 From gross income to taxable income there is a series of steps called adjustments, exemptions, and deductions. Adjustments are those additions or subtractions that are made to get from gross income to adjusted gross income. Adjusted gross income is not yet the basis for tax computations ,but this figure is important,because it is used to determine various limitations on exclusions and tax credits and ceilings on certain deductions. Prof. Dr. Yeşim Kuştepeli Partial exclusions include a portion of Social Security benefits for higher income households (lower income households get to exclude all Social Security benefits). 18 For people whose income is modest and comes almost entirely from wages or salary, and who have no self employment income or other complications, the determination of adjusted gross income is very easy. Prof. Dr. Yeşim Kuştepeli Among the adjustments made at this point are subtractions from gross income of contributions to various kinds of retirement saving plans, part of health insurance premiums, job-related moving expenses, rent and royalty expenses, selfemployment health insurance and half of self employment tax, and alimony payments. 19 DETERMINING TAXABLE INCOME At this point,the filing status of the taxpayer becomes a factor in determining how much is subtracted from adjustable gross income to arrive at taxable income. Filing status options are joint (a married couple filing a combined return, whether both or just one had income), head of household (a person who has at least one dependent child living with him or her), single, or married filing seperately. Prof. Dr. Yeşim Kuştepeli The next step in the process is to convert adjusted gross income to taxable income, which is the income figure used to compute tax liability. 20 These two components,which are available to every taxpayer, exclude a base amount of income from taxation. Exemptions and deductions would make the income tax progressive even without a series of graduated tax rates. Prof. Dr. Yeşim Kuştepeli The two components of the difference between adjusted gross income and taxable income are personal exemptions and either standard or itemized deductions. 21 A FLOWCHART FOR CALCULATING FEDERAL INCOME TAX STOP! COMPUTE TAX LIABILITY HERE! Tax Liability - Withholding - Other credits + Other taxes due = Tax due or refund Prof. Dr. Yeşim Kuştepeli Start with sources of income - Exclusions = Gross income ± Adjustments = Adjusted Gross Income - Exemptions and deductions = Taxable income 22 Itemized deductions consist of various taxpayer expenditure that Congress has favored with special tax treatment. The major categories are health expenses over a certain percent of income, state and local taxes paid (mostly income and property taxes, but not sales taxes), interest on mortgages and student loans, charitable contributions, and unreimbursed employee business expenses over a certain percentage of income. Prof. Dr. Yeşim Kuştepeli Standard and itemized deductions serve several important public policy purposes. 23 COMPUTING TAX LIABILITY Here filing status becomes very important, because there are different tax rates and schedules for married filing seperately, single, married filing jointly, and heads of households, again reflecting some difficult equity decisions in designing the tax structure. One of the most common sources of confusion in the income tax is the difference between the average rate and the marginal rate. The marginal rate is the tax rate applied to the last lira of taxable income, while the average rate is simply the tax due as a fraction or percentage of taxable income. Prof. Dr. Yeşim Kuştepeli Having arrived at taxable income, the next step is to determine taxes owed. 24 Some taxpayers, generally high income, manage to reduce their taxable income through extensive use of itemized deductions or other tax preferences such as tax exempt interest income, tax-sheltered business losses, and accelerated depreciation. The alternative minimum tax was designed to increase equity by ensuring a fair contribution from these higher income taxpayers, but it also increased the complexity of the tax system considerably from the standpoint of both collection and compliance costs. Prof. Dr. Yeşim Kuştepeli For some taxpayers, a second computation, called the alternative minimum tax, is necessary. 25 THE LAST STEP:WHO OWES WHOM? The difference will be either the amount of owed, (in which case the taxpayer will write a check and attach it to the return or arrange to pay via a credit card) or the amount due as a refund, which will probably take six to eight weeks to arrive if everything was done correctly. Most taxpayers who have any liability have already paid a part of their taxes either through payroll withholding (the most common method), or through quarterly filings of estimated tax, or both. Prof. Dr. Yeşim Kuştepeli Finally, the tax form asks the filer to figure out how much has already been paid, what other kinds of taxes need to be figured in, and what credits might apply. 26 Taxpayers who are self-employed or who have other kinds of income not subject to payroll withholding (interest, dividends, rents, royalties, consulting, taxable pensions etc.) usually find it necessary to file an estimated tax form each quarter and send in a payment. Prof. Dr. Yeşim Kuştepeli Payroll withholding not only guarantees the government a steady flow of revenue but also reduces the visibility and pain of the annual ritual of settling accounts with the federal government. Tax credits are different from deductions because the value of a tax credit is closer to being equal for all taxpayers, whereas the value of an itemized deduction is greater to a person in a 35% tax bracket than to one in a 15% tax bracket. 27 The child care credit is one of the larger individual income tax credits. The most significant credit, is the Earned Income Tax Credit (EITC). The EITC represents a step in the direction of a negative income tax, an idea that was popularized by economist Milton Friedman in the 1970’s. Prof. Dr. Yeşim Kuştepeli The higher credit rates are provided for lower income households, adding a bit of progressivity to the credit in order to encourage lower income families to seek out and use quality child care services. 28 Up to a certain income level, households would receive a payment from the government that diminished as their income rose. At a certain treshold level, the subsidy would become zero, and dollars earned above that amount would be subject to taxation. The EITC offers tax relief or cash payments to working households up to an income ceiling, phasing the credits out as income rises. Prof. Dr. Yeşim Kuştepeli A negative income tax was originally proposed as an alternative to welfare that would be much less costly to administer and that would gradually reduce the subsidy to lower income households as income increased, rather than facing an abrupt cutoff. 29 TAX EVASION, AVOIDANCE, AUDITS Tax avoidance means arranging your affairs so as to minimize your tax burden by incurring deductible expenses,investing in tax-exempt bonds, putting money in tax-deferred retirement savings, or other legal techniques. Prof. Dr. Yeşim Kuştepeli Tax evasion means falsifying information on your tax return in order to reduce your tax liability, or even not filing at all. There are also activities that fall in the gray area, sometimes called “tax avoision.” The probability a taxpayer will have to undergo an audit is low, particularly for taxpayers with moderate income and few deductions, credits, or exclusions. 30 DIRECTIONS FOR REFORM Taxation of capital gains is a perennial issue. Prof. Dr. Yeşim Kuştepeli The gradualist/marginal school of tax reformers always has a laundry list of improvements in the income tax code to increase efficiency, improve equity, and reduce collection or compliance costs while maintaining adequate revenue. Capital gains are taxed at a lower effective rate than income from other sources. Some tax reformers would like to eliminate the tax on capital gains altogether. 31 While the same can be said for other sources of income (your salary increase each year is at least partly compensation for inflation), the bunching of capital gains at the time asset is sold can kick the taxpayer into a higher tax bracket. This bunching effect is part of the rationale for a lower marginal tax rate on capital gains. Proponents of special treatment for capital gains income also argue that encouraging investment in assets that are likely to create capital gains constitutes an incentive to invest, which encourages economic growth. Prof. Dr. Yeşim Kuştepeli Proponents of both special treatment and elimination argue that capital gains consist largely of inflation rather than real increases in income. 32 CORPORATE INCOME TAXES There is relatively little difficulty in identifying and deducting firms’ expenditures for labor, utilities, supplies or raw materials, capital equipment, land, buildings or rented property, and interest on borrowed money. However some other expenses fall into a gray area that looks like tax avoidance or even tax evasion. Prof. Dr. Yeşim Kuştepeli The corporate income tax is very complicated to administer because of the problems in defining allowable expenses that can be deducted. These definitional issues also have the potential to distort firms’ decisions. 33 Three particular areas of controversy in relation to these allowable expenses are 1)depreciation of capital equipment Prof. Dr. Yeşim Kuştepeli some questionable provisions have been inserted into the tax code that inflate deductible expenses beyond what normal cost accounting would suggest is appropriate. 2)consumption type expenditures 3)the incentive to borrow rather than to finance new or expanding firms with equity (stock) 34 DEPRECIATION The rules on the timing of depreciation can affect the amount of tax owed and favor some kinds of capital over others, or capital over other inputs. Allowing a firm to write off the cost of capital equipment much more rapidly than the actual decline in its economic value (accelerated depreciation) is regarded as an incentive to invest in new equipment. This tax expenditure distorts the firm’s decisions between buying new equipment and repairing old equipment, and discriminates in favor of capitalintensive firms compared to other kinds of corporations. Prof. Dr. Yeşim Kuştepeli Capital equipment that has a useful lifetime of more than one year must be depreciated over several years. 35 DISGUISED CONSUMPTION Where stockholders are ineffective at making management accountable, management may enjoy a variety of “perks” that are actually consumption disguised as allowable business expenses. Prof. Dr. Yeşim Kuştepeli A second area of long-standing controversy is that of distinguishing between expenditures made in order to produce the firm’s product or service and those that are disguised consumption, particularly for the owners of privately held corporations or stockholders in closely held corporations. 36 DEBT VERSUS EQUITY FINANCING When firms need additional capital,they have three possible sources Borrowing(debt) Issuing stock(equity) Using retained earnings If there were no tax distortions, market forces would establish an appropriate balance between these three methods. Prof. Dr. Yeşim Kuştepeli The third distortion that arises from the treatment of allowable expenses is the deduction for interest paidon borrowed funds. 37 If additional shares of stock are issued,t hose added shares dilute the value of existing equity(stock), reducing the value of each outstanding share. Prof. Dr. Yeşim Kuştepeli Using retained earnings means forgoing what those funds could earn in a competitive market place, so the opportunity cost of using internal capital for investment should be the same as external borrowing. Pressure from stockholders to maintain the value of their holdings will discourage management from over using equity rather than debt financing. 38 Corporations put themselves in a riskier financial position with high debt-to-equity ratio, because stockholders have no choice during bad times but to wait it out, while bondholders have an enforceable claim to payment that could drive a firm into bankruptcy. Prof. Dr. Yeşim Kuştepeli The effect of the corporate income tax is to tilt the balance in favor of issuing bonds (borrowing or debt financing) rather than stock (equity financing), because interest paid to borrowers is deductible from the corporate income tax, but dividends paid to stockholders are not. 39 WHO PAYS THE CORPORATE INCOME TAX? The burden must fall in some combination on owners (stockholders), workers, and consumers of the firm’s product, because those constitute all the possible parties to any activities in which the burden can be shifted. If (1) all firms were corporations (2) all owners were individual tax payers (3) all relevant markets were highly competitive then the corporate income tax would become a tax on capital. Prof. Dr. Yeşim Kuştepeli The incidence of the corporate income tax has been a source of debate among economists for years. 40 In the long run, the supply of financial capital is highly elastic and flows freely between countries and between business firms and other borrowers. To offer the same rate of return as others who are competing for funds, corporations would require a higher pretax return in order to generate the same after-tax return. Prof. Dr. Yeşim Kuştepeli In the short run, all of the burden of the tax would fall on the owners of the fixed supply of capital, who would receive a reduced return on their investment, much like owners of land who are faced with a property tax. They would move up their demand curve for capital, acquiring less capital by only choosing those investment projects with much higher rates of return. 41 Corporations may invest less in capital per worker than they would otherwise. Capital is both a substitute and a complement to workers. Less capital investment may mean more workers, but less productive ones (since each worker has less capital to workwith), and hence lower wages. In this way some of the burden of the corporate income tax may fall on workers in the long run. Prof. Dr. Yeşim Kuştepeli One effect of the corporate income tax may be to encourage firms to be organized as partnerships or proprietorships (or one of the special forms of corporations provided for in the tax law) in order to reduce their tax burdens. 42 A second effect may be that the higher cost of capital to corporations translates into higher prices for their products relative to those of noncorporate firms,shifting some of the burden of the corporate income tax to buyers of products produced by the corporate sector. Prof. Dr. Yeşim Kuştepeli The result is a less efficient mix of kinds of business organizations than would otherwise occur. As long as markets are competitive on both a national and international scale, the main burden of the tax falls on shareholders. 43 CASE AGAINST THE CORPORATE INCOME TAX When the shareholders receive part of that income as dividends, it becomes part of their personal income and is subject to individual income tax. When the corporation retains (and reinvests) part or all of its profit or net income, that reinvestment should increase the value of the shares of stock. Prof. Dr. Yeşim Kuştepeli Corporations are owned by their shareholders. When the shareholder sells the stock,the capital gain (increase in the value of the stock) is taxable income. The issue for many people involves both efficiency and equity. 44 It is for this reason that there has been at times a limited divident exclusion on the individual income tax, and favorable treatment of capital gains. The alternative proposal is called full integration of the individual and corporate income tax so that corporate profits are taxed only once. If they are taxed at the source, then any distribution or capital gain from sale of stock should be exempt from individual income taxes, or should only be taxed to the extent that the taxpayer is in a higher tax bracket than the corporation. Prof. Dr. Yeşim Kuştepeli When dividends and capital gains are both taxed as ordinary income to stockholders, an additional tax on corporate net income amounts to double taxation. 45 One of them is the proposed flat tax, which seperates individual income tax from all kinds of business income, including proprietorships, partnerships, and corporations,which are taxed seperately with a parallel business tax. Full integration assumes that all stockholders are individual taxpayers . Prof. Dr. Yeşim Kuştepeli A variety of ways are available for achieving integration. A significant amount of corporate stock is held by entities that either pay no taxes or can defer taxes for very long periods of time. 46 CASE FOR THE CORPORATE INCOME TAX A second reason is that corporations benefit from government services ranging from fire and police protection to educational services, and various kinds of infrastructure. The corporate income tax can be regarded as a way to make corporations pay some or all of the cost of these inputs into production. The problem with this second argument is that here is a weak link between the value of services received and the corporations’ net income or profit. Prof. Dr. Yeşim Kuştepeli There are some valid arguments for taxing corporate net income. One is a matter of convenience. Tax collectors needs “tax handles”-visible flows of funds, assets, transactions-to latch onto that provide a measure of ability to pay. Corporate net income,which must be disclosed to stockholders each year, is a good tax handle. 47 A third argument is that taxation of corporate income or profit adds a degree of progressivity to the overall tax system, because shareholders come from the uooer end of the income spectrum. Closely related is the argument that if this tax is indeed a tax on capital, it helps to counterbalance any burden of the Social Security payroll tax that falls on the employer rather than the employee. Absent a tax on capital, the firm may have an inefficiently strong incentive to substitute capital for labor. Prof. Dr. Yeşim Kuştepeli Firms that use substantial amounts of public services but generate no profit contribute nothing toward the cost of these services, while highly profitable firms contribute heavily even if they use very few services. 48 Many corporations enjoy some degree of market power. Unlike normal profit, which is just enough to keep the owners’ capital invested in the business, or temporary profit, which serves as a signal to expand output and a reward for a fast response, monopoly profit serves no socially useful function. Taxing monopoly profit is attractive from the efficiency standpoint (no undesirable changes in economic behavior) as well as equity (since owners of firms with monopoly power are generally owned by higher income individuals). Prof. Dr. Yeşim Kuştepeli Fourth, opposition to the corporate income tax is based on an unrealistic assumption of highly competitive markets. 49 If there were no corporate income tax, then under the present system capital gains that result from reinvesting retained earnings would not be taxed under the individual income tax until they were distributed as dividends (which might never happen) or the shareholder realized the gains by selling the stock. The possibilities are unlimited for deferring this income, perhaps until death,when it might never be taxed unless the estate is very large. The corporate income tax makes sure that a substantial annual flow of income is taxed in the year for which it is earned,rather than after long delays, or in some cases, not at all. Prof. Dr. Yeşim Kuştepeli Finally, although dividends are taxed in the year in which they are distributed, capital gains are another matter. 50 SOCIAL SECURITY TAXES It is not a pure tax, nor is it a pure insurance premium, although a recipient of Social Security does need to make payments for a specified number of quarters to be eligible for benefits, and the value of benefits is somewhat related to the level of contributions. Prof. Dr. Yeşim Kuştepeli Because the tax is only on wages and cuts off at a maximum ,the Social Security tax is moderately regressive. 51