Common corporate tax base (CCTB) and effective tax burdens in the EU member states

The article assesses the impact of a Common Corporate Tax Base (CCTB) as promoted by the European Commission and the related Working Groups on the effective tax burdens of companies in all 27 EU member states. The results shall help to evaluate the economic consequences of introducing a harmonized set of tax accounting rules for EU-based companies. The proposals for a CCTB covered here include depreciation on intangibles, machinery, buildings, furniture and fixture, simplified valuation of inventories, determination of production costs for stocks, treatment of costs for R&D as part of production costs, provisions for future pension payments, provisions for legal obligations, avoidance of double taxation regarding dividend income, and loss relief. The proposed options for a CCTB are applied for average EU-27 corporations of different size as well as for model companies belonging to different economic sectors. --European Taxation,Tax Harmonization,Tax Accounting,Effective Tax Burdens

ZEW Corporate Taxation Microsimulation Model (ZEW TaxCoMM)

Current political discussions in Germany and other European countries illustrate the importance accorded to revenue and distribution effects of tax reforms. Whereas widely recognized concepts of effective tax measures can provide important insights into the incentives of taxation they do not allow robust revenue estimations or distribution analyses. Hence there is need to supplement existing quantitative tax models by approaches apt for these issues of policy analysis. Against this background, this paper puts forward a corporate microsimulation model allowing an ex-ante evaluation of tax reforms with regard to distributional consequences and revenue effects. Central feature of the model is the processing of financial statements included in the DAFNE data base of the Bureau van Dijk. The firm-level data is supplemented by survey data on tax accounting practices. The focus of the paper is on the documentation of the model set-up. Its application will be addressed in future publications. --Microsimulation Model,Corporate Taxation,Policy Analysis,Firm-Level Data

ZEW Corporate Taxation Microsimulation Model (ZEW TaxCoMM)

Current political discussions in Germany and other European countries illustrate the importance accorded to revenue and distribution effects of tax reforms. Whereas widely recognized concepts of effective tax measures can provide important insights into the incentives of taxation they do not allow robust revenue estimations or distribution analyses. Hence there is need to supplement existing quantitative tax models by approaches apt for these issues of policy analysis. Against this background, this paper puts forward a corporate microsimulation model allowing an ex-ante evaluation of tax reforms with regard to distributional consequences and revenue effects. Central feature of the model is the processing of financial statements included in the DAFNE data base of the Bureau van Dijk. The firm-level data is supplemented by survey data on tax accounting practices. The focus of the paper is on the documentation of the model set-up. Its application will be addressed in future publications. --Microsimulation Model,Corporate Taxation,Policy Analysis,Firm-Level Data

Impact of tax rate cut cum base broadening reforms on heterogeneous firms: Learning from the German tax reform 2008

The German corporate tax reform of 2008 has brought about important cuts in corporate tax rates, which were at the same time accompanied by significant changes in the determination of the tax base for both major German corporate taxes - corporate income tax and trade tax. The reform followed the distinct and internationally prevalent pattern of tax rate cut cum base broadening. Its implications are thus not unique to Germany. Especially in view of the current economic crisis, questions on the distribution of the tax burden among firms of different characteristics have arisen and still remain at the heart of the academic and political debate in Germany and other countries. In this paper we present a new corporate microsimulation model, ZEW TaxCoMM, which allows for the coherent micro-based analysis of revenue implications of tax reforms and the distribution of tax consequences among heterogeneous firms. The model processes firm-level financial accounting input data and derives the firm specific tax base and tax due endogenously in accordance with the tax code. To smooth out distortions between the sample and the population of German corporations, the sample is extrapolated on the basis of the corporate income tax statistic. The simulation results show inter alia that the average annual relief as measured by the average decline in the effective tax burden on cash flow amounts to 2.8 percentage points for large corporations and to 6 percentage points for small corporations. Furthermore, the results illustrate that firms with low profitability, high debt ratio and high capital intensity benefit least from the reform. As to tax revenues, the reform induced decrease amounts to 9.8 billion and the trade tax gains fiscally in importance. --Tax reform,microsimulation,tax policy evaluation

Impact of tax rate cut cum base broadening reforms on heterogeneous firms: Learning from the German tax reform 2008

The German corporate tax reform of 2008 has brought about important cuts in corporate tax rates, which were at the same time accompanied by significant changes in the determination of the tax base for both major German corporate taxes - corporate income tax and trade tax. The reform followed the distinct and internationally prevalent pattern of tax rate cut cum base broadening. Its implications are thus not unique to Germany. Especially in view of the current economic crisis, questions on the distribution of the tax burden among firms of different characteristics have arisen and still remain at the heart of the academic and political debate in Germany and other countries. In this paper we present a new corporate microsimulation model, ZEW TaxCoMM, which allows for the coherent micro-based analysis of revenue implications of tax reforms and the distribution of tax consequences among heterogeneous firms. The model processes firm-level financial accounting input data and derives the firm specific tax base and tax due endogenously in accordance with the tax code. To smooth out distortions between the sample and the population of German corporations, the sample is extrapolated on the basis of the corporate income tax statistic. The simulation results show inter alia that the average annual relief as measured by the average decline in the effective tax burden on cash flow amounts to 2.8 percentage points for large corporations and to 6 percentage points for small corporations. Furthermore, the results illustrate that firms with low profitability, high debt ratio and high capital intensity benefit least from the reform. As to tax revenues, the reform induced decrease amounts to € 9.8 billion and the trade tax gains fiscally in importance. --tax reform,microsimulation,tax policy evaluation

Common corporate tax base (CCTB) and effective tax burdens in the EU member states

The article assesses the impact of a Common Corporate Tax Base (CCTB) as promoted by the European Commission and the related Working Groups on the effective tax burdens of companies in all 27 EU member states. The results shall help to evaluate the economic consequences of introducing a harmonized set of tax accounting rules for EU-based companies. The proposals for a CCTB covered here include depreciation on intangibles, machinery, buildings, furniture and fixture, simplified valuation of inventories, determination of production costs for stocks, treatment of costs for R&D as part of production costs, provisions for future pension payments, provisions for legal obligations, avoidance of double taxation regarding dividend income, and loss relief. The proposed options for a CCTB are applied for average EU-27 corporations of different size as well as for model companies belonging to different economic sectors

ZEW Corporate Taxation Microsimulation Model (ZEW TaxCoMM)

Current political discussions in Germany and other European countries illustrate the importance accorded to revenue and distribution effects of tax reforms. Whereas widely recognized concepts of effective tax measures can provide important insights into the incentives of taxation they do not allow robust revenue estimations or distribution analyses. Hence there is need to supplement existing quantitative tax models by approaches apt for these issues of policy analysis. Against this background, this paper puts forward a corporate microsimulation model allowing an ex-ante evaluation of tax reforms with regard to distributional consequences and revenue effects. Central feature of the model is the processing of financial statements included in the DAFNE data base of the Bureau van Dijk. The firm-level data is supplemented by survey data on tax accounting practices. The focus of the paper is on the documentation of the model set-up. Its application will be addressed in future publications

Impact of tax rate cut cum base broadening reforms on heterogeneous firms : learning from the German tax reform 2008

The German corporate tax reform of 2008 has brought about important cuts in corporate tax rates, which were at the same time accompanied by significant changes in the determination of the tax base for both major German corporate taxes - corporate income tax and trade tax. The reform followed the distinct and internationally prevalent pattern of tax rate cut cum base broadening. Its implications are thus not unique to Germany. Especially in view of the current economic crisis, questions on the distribution of the tax burden among firms of different characteristics have arisen and still remain at the heart of the academic and political debate in Germany and other countries. In this paper we present a new corporate microsimulation model, ZEW TaxCoMM, which allows for the coherent micro-based analysis of revenue implications of tax reforms and the distribution of tax consequences among heterogeneous firms. The model processes firm-level financial accounting input data and derives the firm specific tax base and tax due endogenously in accordance with the tax code. To smooth out distortions between the sample and the population of German corporations, the sample is extrapolated on the basis of the corporate income tax statistic. The simulation results show inter alia that the average annual relief as measured by the average decline in the effective tax burden on cash flow amounts to 2.8 percentage points for large corporations and to 6 percentage points for small corporations. Furthermore, the results illustrate that firms with low profitability, high debt ratio and high capital intensity benefit least from the reform. As to tax revenues, the reform induced decrease amounts to € 9.8 billion and the trade tax gains fiscally in importance

Coexistence of dilute and densely packed domains of ligand-receptor bonds in membrane adhesion

We analyze the stability of micro-domains of ligand-receptor bonds that mediate the adhesion of biological model membranes. After evaluating the effects of membrane fluctuations on the binding affinity of a single bond, we characterize the organization of bonds within the domains by theoretical means. In a large range of parameters, we find the commonly suggested dense packing to be separated by a free energy barrier from a regime in which bonds are sparsely distributed. If bonds are mobile, a coexistence of the two regimes should emerge, which agrees with recent experimental observations.Comment: 6 pages, 6 figures, accepted by EP

Steuerwirkungsanalysen unter Verwendung von unternehmensbezogenen Mikrosimulationsmodellen

Um die finanziellen Konsequenzen von Steuerreformen im Bereich der Unternehmensbesteuerung abschätzen zu können, bedarf es leistungsfähiger quantitativer Ansätze. Timo Reister entwickelt mit dem ZEW TaxCoMM ein Mikrosimulationsmodell, mit dessen Hilfe sich Belastungs-, Aufkommens- und Verteilungsfolgen von Steuerreformen ermitteln lassen. Der Autor zeigt für die Reform 2008, dass es trotz der ertragsteuerlichen Tarifsenkungen unter den Unternehmen eine beträchtliche Anzahl von Reformverlierern gibt, die finanziellen Mehrbelastungen ausgesetzt sind