1 Principles of Tax Analysis © Allen C. Goodman, 2014

2 Lots of Different Taxes Income/BusinessConsumptionWealth Personal IncomeSalesProperty Corporate IncomeUseEstate Value-AddedMotor FuelInheritance LicenseAlcoholic BeverageTransfer Hotel/Motel Restaurant Meals Telephone Call Gambling Most economists Don’t like this one. Why?

3 Lots of Different Taxes Income/BusinessConsumptionWealth Personal Inc.SalesProperty Corporate Inc.Use (e.g. Roads)Estate Value-AddedMotor FuelInheritance LicenseAlcoholic BeverageTransfer Hotel/Motel Restaurant Meals Telephone Call Gambling

4 Lots of Different Taxes Income/BusinessConsumptionWealth Personal Inc.SalesProperty Corporate Inc.Use (e.g. Roads)Estate Value-AddedMotor FuelInheritance LicenseAlcoholic BeverageTransfer Hotel/Motel Restaurant Meals Telephone Call Gambling Why good? Why bad?

5 Tax Incidence Who REALLY pays the tax If you buy something at the store, you give $ to the clerk, and the store pays $ to the gov’t, but who really pays? If you rent an apartment and property taxes in your city rise, what happens to the rent that you pay? Who really pays?

6 Tax Incidence and Burden Progressive Tax –Tax Burden/income ↑ as income ↑ Proportional Tax –Tax Burden/income is constant as income ↑ Regressive Tax –Tax Burden/income ↓ as income ↑ Income Tax These are real slopes, but it’s hard to see them. Following slides will be similar but not to scale.

7 Progressive Tax –Tax Burden/income ↑ as income ↑ –Slope of ray = T/Y –Mgl Tax Rate = ΔT/ΔY Example – Gas Guzzler Tax Federal Income Tax Income Tax T Y Y1Y1 Y2Y2 Y3Y3 Ave. Tax Rate Mgl. Tax Rate T ΔTΔT ΔYΔY AverageMarginal Ave  Ray to origin Mgl  slope Not to Scale

8 Proportional Tax –Tax Burden/income constant as income ↑ –Slope of ray = T/Y –Mgl Tax Rate = ΔT/ΔY Example – Medicare Tax Income Tax Y1Y1 Y2Y2 Y3Y3 T Y ΔTΔT ΔYΔY AverageMarginal Ave  Ray to origin Mgl  slope Not to Scale

9 Regressive Tax –Tax Burden/income ↓ as income ↑ –Slope of ray = T/Y –Mgl Tax Rate = ΔT/ΔY Example – FICA tax for Social SecuritySocial Security Income Tax Y1Y1 Y2Y2 Y3Y3 Mgl. Tax Rate T Y ΔTΔT ΔYΔY AverageMarginal Ave  Ray to origin Mgl  slope Not to Scale

10 FICA and Medicare FICA is Regressive Medicare is Proportional

11 General Rules for Taxes Only way (legally) to avoid taxes is to change behavior. The more that one agent can avoid the tax, –the less is collected –the more someone else pays

12 Taxes and Efficiency Excise Tax –Tax on a particular good. –Look at a unit (as oppose to percentage) tax. Partial eq’m analysis looks at a single market. $ Q DS Q0Q0 P0P0 Efficient Quantity! WHY? Efficient Quantity! WHY?

13 Taxes and Efficiency Excise Tax –Tax on a particular good. –Look at a unit (as oppose to percentage) tax. $1 Tax Collected on DEMANDERS $ Q DS Q0Q0 P0P0 $1 Why is this treated as a downward shift? Suppose you buy gasoline at $3.00 per gallon. Your state imposes a $1.00/gallon tax. You keep your receipts and pay tax. You demand gas based on $2.00 per gallon, because you know you’ll have to pay an additional $1.00. Your demand curve shifts DOWN by $

14 Total Revenue Taxes and Efficiency Excise Tax –Tax on a particular good. –Look at a unit (as oppose to percentage) tax. $1 Tax Collected on DEMANDERS $ Q DS Q0Q0 P0P0 Who Pays? P1P1 Q1Q1 D' $1 3.0

15 Taxes and Efficiency Excise Tax –Tax on a particular good. –Look at a unit (as oppose to percentage) tax. $1 Tax Collected on DEMANDERS $ Q DS Q0Q0 P0P0 What’s DW$ P1P1 Q1Q1 Prod. Con. DW $1 3.0

16 Total Revenue Prod. Suppose the $1 is on Suppliers? $ Q DS Q0Q0 P0P0 Excise Tax –Tax on a particular good. –Look at a unit (as opposed to percentage) tax. $1 Tax Collected on SUPPLIERS Who Pays? Cons. EXACTLY the same result. DW P1P1 Q1Q1 3.0

17 If result is same … Why do we usually collect sales taxes from the sellers? Do we ever try to collect it from the buyers? What happens when we do?

18 Sales Tax on the Internet Margo is passionate about rare orchids but can't find them in Indiana, so she orders her supplies online from an orchid supplier with headquarters in Vermont. The supplier has all of its facilities in Vermont and collects payment in Vermont. Margo does not have to pay Indiana sales tax (or Vermont sales tax) on her orchids. A few months later, the supplier opens a warehouse in Indiana to handle its online orders for the entire country. Margo continues to order her orchids from the headquarters in Vermont but she must now pay Indiana sales tax. Her ride on the tax-free train is over. Many states have reevaluated their attitude towards collecting use taxes. For example, New York state has added a line to income tax returns requiring all residents to calculate how much they should pay on Internet, mail order, or out-of-state purchases.

19 Marketplace Fairness Act of 2013 The Marketplace Fairness Act grants states the authority to compel online and catalog retailers ("remote sellers"), no matter where they are located, to collect sales tax at the time of a transaction - exactly like local retailers are already required to do. However, there is a caveat: States are only granted this authority after they have simplified their sales tax laws. The Marketplace Fairness Act requires that states must simplify their sales tax laws in order to ease those concerns and make multistate sales tax collection easy. Specifically, states seeking collection authority have two options for simplifying their sales tax laws. Option 1: A state can join the twenty-four states that have already voluntarily adopted the simplification measures of the Streamlined Sales and Use Tax Agreement (SSUTA), which has been developed over the last eleven years by forty-four states and more than eighty- five businesses with the goal of making sales tax collection easy. Any state which is in compliance with the SSUTA and has achieved Full Member status as a SSUTA implementing state will have collection authority on the first day of the calendar quarter that is at least 90 days after enactment.Streamlined Sales and Use Tax Agreement Has passed Senate, but not yet passed House. Something like that will pass.

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21 MFP of 2013 – 2 Option 2: Alternatively, states can meet essentially five simplification mandates listed in the bill. States that choose this option must agree to: –Notify retailers in advance of any rate changes within the state –Designate a single state organization to handle sales tax registrations, filings, and audits –Establish a uniform sales tax base for use throughout the state –Use destination sourcing to determine sales tax rates for out- of-state purchases (a purchase made by a consumer in California from a retailer in Ohio is taxed at the California rate, and the sales tax collected is remitted to California to fund projects and services there) –Provide free software for managing sales tax compliance, and hold retailers harmless for any errors that result from relying on state-provided systems and data.

22 Important Concepts! DW loss relates to the change in quantity. Remember, we saw that efficiency related to quantity. The more behavioral change that a tax makes, the more DW loss. Incidence relates to elasticity of demand and supply. Remember elasticity addresses whether quantity changes a little or lot. If you can change your behavior a lot, and avoid the tax, its incidence on you is small. If you can’t change your behavior and avoid it, its incidence is a lot! Does it matter how we collect the tax?

23 Total (yellow) Another Gas Tax Example Suppose that Southfield puts a $1/gallon tax on gas. Let’s look at demand and supply. Why did I draw demand and supply like I did. $ Quantity D S Who Pays? Q0Q0 $1 P0P0 P1P1 Q1Q1 Price ↑ a little; Quantity ↓ a lot Most is paid by producers. S' Consumer by producer

24 Tax Collected Another Gas Tax Example Suppose that the US puts a $1/gallon tax on gas. Let’s look at demand and supply. Why did I draw demand and supply like I did. $ Quantity D S Who Pays? Q0Q0 $1 P0P0 P1P1 Q1Q1 Price ↑ a lot; Quantity ↓ a little Most is paid by consumers. S' WHY?

25 Excess Burden of Excise Taxes – Gen’l Eq’m Previously, we looked only at a single market. Even if a tax doesn’t change quantity in a given market it may change behavior in other markets. U0U0 U1U1 U2U2 We can’t measure U 1 – U 2, but we CAN, in principle, measure the cost in $ of this excess burden. Gasoline Other Goods Excess Burden EB is like DW Loss

26 Even if Q doesn’t change! – Gen’l Eq’m Previously, we looked only at a single market. Even if a tax doesn’t change quantity in a given market (again, suppose it’s gasoline) it may change behavior in other markets. U0U0 U1U1 U2U2 Again we can’t measure U 1 – U 2, but we CAN, in principle, measure the cost in $ of this excess burden, even though the amount of gas did not change. Gasoline Other Goods