Empirical Analysis of Loss-Making Corporations Using Individual Corporate Tax Return Data: Economic Analysis Using Administrative Data

Overview

A paper published in the Ministry of Finance Policy Research Institute's "Financial Review" Issue 160. Professor Takero Doi and his research team conducted a comprehensive analysis of loss-making corporations (deficit corporations) in Japan using individual corporate tax return data. ## Key Points ### 1. Research Overview - **Authors**: Takero Doi (Keio University), Shunichiro Bessho (Waseda University), Katsuki Mori (Former Education Officer, Tax College Research Department) - **Research Subject**: Empirical analysis of loss-making corporations based on corporate tax return data - **Research Question**: Understanding the phenomenon where approximately 70% of Japanese corporations are loss-making - **Data**: Individual corporate tax return data (anonymized) ### 2. Data Characteristics - **Data Scale**: Tax return data for all corporations (approximately 3 million companies) - **Information Detail**: - Major financial statement items - Detailed loss information - Corporate attributes (capital, industry, establishment year, etc.) - **Time Series**: Panel data covering multiple years - **Coverage**: Virtually all corporations excluding dormant companies ### 3. Distribution of Loss-Making Corporations by Income and Loss Amount Classes - **Loss-Making Corporation Ratio**: - Approximately 70% of all corporations are loss-making - Consistently high levels - **Loss Amount Distribution**: - Small-scale losses constitute the majority - Corporations with massive losses are few - **Loss Carryforward**: - Long-term accumulation - Impact of deduction restrictions ### 4. Distribution by Corporate Tax Amount Classes - **Characteristics of Tax-Paying Corporations**: - Approximately 30% of total - Concentrated among large corporations - Stable revenue base - **Tax Revenue Contribution**: - Tax revenue concentration among top corporations - Limited contribution from SMEs - **Effective Tax Rate Reality**: Burden rate after loss deduction ### 5. Distribution of Loss-Making Corporations by Capital Classes - **Patterns by Size**: - Higher loss-making corporation ratio among SMEs - Certain proportion exists even among large corporations - Discontinuity around 100 million yen capital - **Relationship with Business Reality**: - Impact of paper companies - Deficit reporting for tax saving purposes - Presence or absence of substantial business activities ### 6. Distribution of Loss-Making Corporations by Industry - **Inter-Industry Disparities**: - High loss rates in service and retail industries - Relatively low in manufacturing - Peculiarities of real estate industry - **Industry Characteristic Effects**: - High or low entry barriers - Economic sensitivity - Presence or absence of regulations ### 7. Distribution by Family vs. Non-Family Companies - **Family Company Characteristics**: - Higher loss-making corporation ratio - Possibility of income adjustment - Relationship with executive compensation - **Non-Family Companies**: - Relatively lower loss rates - Effect of external monitoring - **Governance Impact**: Degree of separation between ownership and management ### 8. Dynamics Between Loss-Making and Profit-Making Corporations - **State Transition Analysis**: - Probability of transition from loss to profit - Probability of falling from profit to loss - State persistence - **Corporate Life Cycle**: - Loss period after establishment - Profitability in maturity - Characteristics of decline phase - **Policy Change Impact**: Response to tax reform ### 9. Conclusions and Policy Implications - **Major Findings**: - Heterogeneity of loss-making corporations - Structural and cyclical factors - Possibility of tax avoidance - **Policy Implications**: - Corporate tax system challenges - Review of SME tax system - Strengthening tax enforcement - **Future Research Topics**: - Longer-term panel analysis - International comparative studies - Clarification of microeconomic foundations This research empirically reveals the structural challenges facing Japan's corporate tax system and provides groundbreaking results offering important implications for future tax reform discussions.