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(Un)fairness of Corporate Taxation

This research explores the fairness of corporate taxation, including channels of tax avoidance, policy options, and the effectiveness of anti-avoidance regulations. It also examines the distributive effects of base erosion and profit shifting (BEPS) and the impact of tariffs on the tax base. The study concludes with an analysis of treaty shopping and its potential to reduce double tax rates.

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(Un)fairness of Corporate Taxation

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  1. The (un)fairness of corporate taxation • Arjan Lejour, • CPB and Tilburg University • 19 December 2018 • Platform for tax good governance, aggressive tax planning and double taxation

  2. Structure • Introduction • Channels of tax avoidance • Treaty shopping • Policy options

  3. Some • Most countries combine CIT and PIT and have theirownsolutionsfortaxing dividend income in PIT/CIT (theposition of theshareholder) • Cnossen (2018) itax • Shouldfirmsbetaxed at all, or onlytheshareholders? • Perspective: yes as withholdingtax/ advancedlevy • May be in futureonlyshareholders are taxed (blockchain) • Shouldcapitalincomebetaxed? • Yes, there are efficiency and equalityargumentsforthis view • Conclusion: CIT shouldbestudiedtogetherwithwithholdingtaxes Fairness of the CIT

  4. The taxarchitecture • National tax policies and separate accounting • Taxing rights are based on the source of income and residence of the tax payer • Source is related to physical presence, production • Residence is the place of primary location of receiving income • Distinction becomes blurred (digitalization, globalization)! • Consensus (former): • Source countries tax active business income of foreign PEs. • Residence countries tax passive income (interest, royalties) Fairness of the CIT

  5. Double taxation • Territorial and worldwide system • Residence countries are granting tax credits • No clear distinction: tax deferral, tax credits, and CFC rules complicate the system • Withholding taxes on outgoing flows • Residence countries give relief, but is imperfect • Double tax treaties reduce these withholding tax rates Fairness of the CIT

  6. Channels of base erosionandprofitshifting • Transfer (mis)pricing: • Semi-elasticityvariesfrom 0.5 to 6 • Strategic location of R&D: • Semi-elasticityvariesfrom 0.5 to 3.9 • International debtshifting • Meta analysis: taxelasticity is 0.5 • Treaty shopping • Later on • Tax deferal, corporate inversion, risk transfer, avoiding PE status, hybridentities, • Hardlyempirical studies dueto a lack of data • But these channelscouldbe important Fairness of the CIT

  7. Anti-avoidanceregulationeffective? • Transfer pricing regulation: tightening transfer pricing rules • reduces tax sensitivity and prices • Thin capitalization rules: limit interest deductibility to a certain threshold (of equity or EBITDA) • proof that these rules are effective using US and German data • CFC rules: profits of foreign holdings are taxed, if holdings are located in low-tax country • much lower profits reported if CFC rule is binding • Recent work on country by country reporting (banking) • less profits reported in low tax countries Fairness of the CIT

  8. Economiceffects of BEPS and anti-BEPS policies • Someempiricalandtheoreticalworkthattax havens promote investment! • Make sense: lowerdistortions on capital, • but couldincrease these on labour! • Current systems hardlytaxprofits of thedigitals: • Quiteoftenalso monopoly rents; which are hardlytaxed. • Recent workthat BEPS affects product market competition: • Anti shiftingrulesincrease market share of nationalcompetitors • Seemstoimprovethe level playing field Fairness of the CIT

  9. Distributiveeffects of BEPS • CIT revenues are a small part of totalrevenues, but lowerrevenuesandhigher net returns on capitalcouldcontributetowealthandincomeinequality • In particular at the high end of thewealth and incomedistribution • Tax avoidanceaddstotheperspectivethatcapital is hardlytaxed • In general, we do notknowmuchabouteconomic and distributiveeffects of BEPS, exceptforbudgettaryeffects: • Host countriesloosetaxingrights • Amongthemdevelopingcountries • High CIT tariffcountrieslooserevenues Fairness of the CIT

  10. The effect of tariffs on thetax base • The socalled semi elasticity of the CIT taxdifference (between country and average) totherevenue base is 1 • It is increasing over time until 1.5 in 2015 • a 10% point increase in de taxdifferentiallowersprofitsby 10% • Tax revenue effect: Observed tax base (profit according to the fiscal rules) equals the “true” profits (say commercial) plus shifted income. Fairness of the CIT

  11. Estimatedrevenuelosses (billion US) See IMF (2018). Revenuelosses are probably a lowerboundcomparedtoother studies. Fairness of the CIT

  12. Optimal/indirect route over conduit country C • economic definition: route over one or more conduits is rational when it reduces taxes • determine cheapest tax route using algorithms International tax system: Treatyshopping Fairness of the CIT

  13. Treaty shopping reduces double tax rates • World average double tax rate is reduced with 6 percentage points • Potential reduction: for all pairs cheapest tax route is used • Withholding taxes most avoided • Only 1/3th of the direct routes are optimal. In 2/3th of the cases conduit countries are included • Often one or two • Potential tax reduction = USD 75 billion: based on dividend data Fairness of the CIT

  14. Centrality ranking in thetaxnetwork • Based on bare tax parameters • Determinants of a high rank: • EU membership, • generalrate of 0% forwithholdingtax, • exemption, • large number of treaties Fairness of the CIT

  15. Parent subsidiarydirectiveandwithholdingtaxes • Most important conduitcountries are EU countries! • Learnfromcustomsunion: common taxes at the border • A capital market unionneeds common withholdingtaxes • A minimum withholdingtax on dividends of 5% points Fairness of the CIT

  16. Effects on conduit country ranking Fairness of the CIT

  17. Developedanddevelopingcountries • Level playing field in negotiatingtaxtreaties? • Even notusing UN model • No, capacity etc. • Mainlylowerwithholdingtaxes are negotiated and sometimeslessgenerous double taxreliefrules: • Taxingrights of source country are reduced • Are PPT tests and LOB ruleseffectiveagainsttreaty shopping? • Doubts: even ifdeveloping country is informed, does it have thecapacity and interest to act? • The lowertariffs on withholdingtaxes are stillthere. So, the incentive forthe MNE using a DTT stillexists • Better solution: removingthe incentive? Fairness of the CIT

  18. Conclusions • At leastuntilintroduction BEPS measures, taxavoidance is increasing • lowerstaxrevenues • increases net rate of return on capital • has alsonegativeeffects on theeconomy and probablyinequality • Anti avoidancemeasurescould have an effect • However, it is global: internationalcoordination is important • Effectivesolutions are hard toachieveduetothediversity of nationaltax systems • Common withholdingtaxescould help toalleviatetheproblem • At oddswiththeformer consensus Fairness of the CIT

  19. Literature • Lejour, van ‘t Riet, 2018, Optimal Tax Routing: a Network analysis of FDI Diversion, International Tax and Public Finance • Lejour, van ‘t Riet, 2017,Optimal Tax Routing, CPB Discussion Paper 349 • Beer, S., R. de Mooij, L. Liu, International Corporate Tax Avoidance: a Review of theChannels, Magnitudes, and Blind Spots, IMF Working Paper WP/18/168. (link) • Dharmapala, D. 2014. What Do We Know about Base Erosion and Profit Shifting? A Review of the Empirical Literature. Fiscal Studies, 35: 421–448 • Heckmeyer, Jost and Michael Overesch. 2017. Multinationals’ Profit Response to Tax Differentials: Effect SizeandShiftingChannels, Canadian Journal of Economics. • Hines, J. 2014. How Serious a Problem is Base Erosionand Profit Shifting? Canadian Tax Journal 62(2), p. 443-53. Fairness of the CIT

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