Does tax avoidance affect productivity in SMEs?
Authors: Sánchez-Ballesta Juan P. , Yagüe José 
Published: May 2024

PurposeThe present paper examines whether tax avoidance practices affect productivity in small and medium-sized enterprises (SMEs). This study also analyses whether this association is moderated by firm size, firm financial constraints, management control of cash flows, or information risk.Design/methodology/approachThis study used a sample of Spanish SMEs for the period 2006–2020. Tax avoidance was measured as the difference between the statutory tax rate and the effective tax rate, and three proxies for productivity were used: overall productivity, capital productivity and labour productivity. Firm fixed effects regressions, propensity score matching and change regressions were used to address the potential sample selection bias and endogeneity between tax avoidance and productivity.FindingsThe results of the empirical analysis suggest that tax avoidance increases productivity in SMEs. This beneficial effect of tax avoidance was found to be higher in small firms than in medium-sized firms, but smaller in firms that faced financial constraints. Furthermore, the findings showed that the tax avoidance effect on productivity was stronger in firms where managers had less control over the cash flow –i.e. dividend-paying firms–, and weaker in firms with lower quality of financial information – i.e. firms with qualified audit reports.Research limitations/implicationsThis study contributes to the research on the economic consequences of tax avoidance by examining its impact on firm-level productivity in SMEs. From additional analyses, the findings of the study suggest that the positive effect of tax avoidance on firm productivity depends on firm size, the financial slack of the firm, and the costs of agency conflicts and information problems associated with tax avoidance.Practical implicationsThe results of this study have implications for SMEs, suggesting that cash flows obtained through tax avoidance, if properly used, may increase firm productivity. In planning their tax avoidance practices, SME managers could take advantage of specific tax incentives designed for SMEs, which is particularly relevant given the low-productivity levels of these firms. The findings also highlight the importance of maintaining high-quality information and implementing mechanisms to mitigate the agency risks associated with tax avoidance to enhance the productivity of SMEs.Social implicationsThis study provides important insights to policymakers on SME tax policy, supporting the special tax rules for SMEs – in force in many OECD and EU countries – which aim to create an environment conducive to SME growth. The findings of the study also have macroeconomic implications, given the importance of firm productivity as a determinant of economic growth and the relevance of SMEs in most national economies.Originality/valueThis study provides novel empirical evidence on the effects of tax avoidance on firm-level productivity in SMEs. Despite the prevalence of SMEs as the predominant type of organization in most countries, no prior research has comprehensively examined this issue for this type of firm. This research question was addressed by considering proxies for overall, capital, and labour productivity and by examining how SME characteristics affect this relationship.