Audit Probability versus Effectiveness: The Beckerian Approach Revisited

The Beckerian approach to tax compliance examines how a tax authority can maximize social welfare by trading‐off audit probability against the fine rate on undeclared tax. This paper offers an alternative examination of the privately optimal behavior of a tax authority tasked by government to maximize expected revenue. The tax authority is able to trade‐off audit probability against audit effectiveness, but takes the fine rate as fixed in the short run. I find that the tax authority's privately optimal audit strategy does not maximize voluntary compliance, and that voluntary compliance is nonmonotonic as a function of the tax authority's budget. Finally, the tax authority's privately optimal effective fine rate on undeclared tax does not exceed two at interior optima.     

Tax evasion and tax morale: A social network analysis

We study the effects of tax morale and social norms on tax evasion when individuals interact in a network. We present a model that incorporates incentives for tax compliance in the form of punishment and fines, tax morale, and reputation for social behaviour. We assume that individuals adjust their tax morale by observing the neighbours' tax morale. We simulate the model for different values of the parameters and show that the steady-state share of taxpayers as opposed to tax-evaders is affected by the probability of finding like-minded peers in the reference group (network integration), the weight that individuals attribute to reputation, and the share of individuals who update their tax morale. Last, we consider the possibility of a fiscal authority using the knowledge of the network structure and targeting ‘central’ individuals. We show that by positively affecting the tax morale of individuals whose influence within the network is high, a fiscal authority can increase tax compliance.     

Dubious versus trustworthy faces: what difference does it make for tax compliance?

We find experimental evidence that the decision problem of tax compliance changes if subjects’ declarations are not randomly assessed, but is based on their appearance as captured by pictures of their faces, even if the aggregate audit probability does not change. Some subjects may fear that their picture looks rather dubious, whereas others may believe that their picture looks more trustworthy than average. Depending on these beliefs, they may adjust their compliance decisions. Our experimental design allows us to disentangle these potentially countervailing effects.     

Tax compliance and obedience to authority at home and in the lab: A new experimental approach

In most experimental studies of tax evasion, participants are instructed that they may report any amount of income from zero up to the amount they actually earned or received. This amounts to an invitation to gamble. In contrast, real-world tax authorities unambiguously demand compliance. We develop two new settings for conducting tax experiments. Both involve an explicit demand for compliance. Thus, we can determine whether knowing that the experimental authority would regard evasion as wrongful disobedience will influence compliance decisions. We demonstrate that simply telling people that they are required to pay a “participation fee” analogous to a tax produces remarkably high compliance rates and less sensitivity to changes in economic variables than in the earlier experimental literature using invitation-to-gamble language. This suggests that many people pay taxes despite the financial attraction of non-compliance because they are strongly inclined towards obeying authority. Furthermore, we show that giving participants a week to make their reporting decisions at home without an authority figure physically present overcomes the inclination to obey for some people, significantly lowering compliance rates. However, the majority still complies, even after the audit rate falls from 25% to 1%, which would make non-compliance extremely attractive if it were viewed only as a simple matter of risk and expected return. Electronic Supplementary Material Supplementary material is available in the online version of this article at . JEL Classification C91, H26     

Tax evasion and heuristics: A research note

The paper examines the heuristics which taxpayers use in making tax evasion decisions. The following propositions are tested in an experiment using students. First, the taxpaper's own level of evasion will be positively related to what he perceives as the levels of evasion by others. Second, taxpayers who have been audited are more likely to assess the probability of audit as higher and therefore decrease their levels of evasion. The experimental results fail to support the first proposition but do support the second suggesting the presence of an ‘availability’ effect.     

Do your tax problems make tax evasion seem more justifiable? Evidence from a survey experiment

Taxpayers often view tax rules and filing processes as complicated. I study whether the perceived tax uncertainty among peers makes tax evasion more acceptable among the general public. I find strong supportive evidence for this hypothesis using a survey experiment and a large representative sample of the German population. Providing randomized information that others are uncertain about how to file their taxable income decreases individual support for tax compliance. This suggests that subjects judge tax evasion less harshly in response to this peer information. Studying related heterogeneous treatment effects, I find that both older and left-wing subjects are more responsive to tax uncertainty of others. Less harsh views on evasion are persistent for very high compliance levels in a follow-up survey.     

Compliance with Endogenous Audit Probabilities

In this paper, we study the effect of endogenous audit probabilities on reporting behavior in a face‐to‐face compliance situation, such as at customs. In an experimental setting in which underreporting has a higher expected payoff than truthful reporting, we find an increase in compliance of about 80 percent if subjects have reason to believe that their behavior towards an officer influences their endogenous audit probability. Higher compliance is driven by considerations about how their own appearance and performance affect their audit probability, rather than by the social and psychological effects of face‐to‐face contact.     

Getting the word out: Enforcement information dissemination and compliance behavior

The question for the tax authority is how individuals become aware of enforcement effort. To be an effective tool in reducing tax evasion taxpayers must be aware of the current audit and penalty regime. We use laboratory experiments to examine the compliance impact of types of information dissemination regarding audit frequency and results. The information includes “official” information disseminated by the tax authority, and “unofficial”, or informal, communications among taxpayers. Our results indicate that the effect of the type of post-audit information is conditional on whether the taxpayer is well informed of the audit rate prior to filing. We find that the tax authority would be served by pre-announcing audit rates credibly and by emphasizing the previous period audit frequency in annual reporting of enforcement effort.     

Cheating,emotions, and rationality: an experiment on tax evasion

The economics-of-crime approach usually ignores the emotional cost and benefit of cheating. In this paper, we investigate the relationships between emotions, deception, and rational decision-making by means of an experiment on tax evasion. Emotions are measured by skin conductance responses and self-reports. We show that the intensity of anticipated and anticipatory emotions before reporting income positively correlates with both the decision to cheat and the proportion of evaded income. The experienced emotional arousal after an audit increases with the monetary sanctions and the arousal is even stronger when the evader’s picture is publicly displayed. We also find that the risk of a public exposure of deception deters evasion whereas the amount of fines encourages evasion. These results suggest that an audit policy that strengthens the emotional dimension of cheating favors compliance.     

Itemised Deductions: A Device to Reduce Tax Evasion

With direct incentives and sanctions being the most common instruments to fight tax evasion, the theoretical literature has tended to overlook indirect schemes, such as itemised deductions, in which one agent's behaviour affects the likelihood that others will declare their revenue. Itemised deductions provide an incentive for consumers to declare their purchases. This induces a partial shift in the demand from the black market to the legal one, for consumers need a transaction receipt to enjoy the tax deduction. I show that it is possible to increase tax proceeds by choosing a suitable level of itemised deduction, and this, for any level of taxation. Indeed, the cost for the tax authority on the consumers' side is more than compensated for by the extra proceeds generated on the sellers' side.     

Tax Amnesties In A Dynamic Model of Tax Evasion

We present a dynamic model of tax evasion, where tax liabilities last for two periods and the probability of an inspection decreases with the sum of taxes evaded this period plus taxes evaded last period. We show that a tax amnesty that pardons more than the evasion penalties (an extensive amnesty) can temporarily improve compliance. Whenever the inspection technology improves, steady state compliance also improves, but the economy takes time to transit from one steady state to the other. We show that an amnesty may accelerate this transit, or even make it instantaneous if the amnesty is extensive enough.     

Input versus output incentive schemes

Previous analyses have modeled income tax evasion as a ‘portfolio problem’, deriving the optimal consumption of the ‘risky asset’ (unreported income) assuming a fixed probability of detection. We compare an alternative audit policy to the standard random audit policy. We focus on an ‘audit cutoff’ policy, in which an agent triggers an audit if reported income is ‘too low’, and is not audited if reported income is ‘sufficiently high’. We find that random audit rules are weakly dominated by audit cutoff rules. Given lump-sum taxes and fines, audit cutoff rules are the least-cost policies which induce truthful reporting of income.     

Wage endogeneity,tax evasion,and optimal nonlinear income taxation

This paper studies the interaction between tax evasion and wage endogeneity within a Mirrleesian optimal tax framework. It characterizes the optimal marginal income tax rates on the skilled and the unskilled workers and the optimal amount of resources to be spent on deterring tax evasion. It shows that tax evasion weakens the incentives for the government to manipulate the marginal tax rates for the purpose of exploiting general equilibrium effects on wages. Moreover, the extent of this depends on the curvature of the evasion cost function. It also argues that marginal income tax rates are likely to be higher when the government attempts to deter evasion.     

Tax enforcement,tax compliance and tax morale in transition economies: A theoretical model

The focus of this paper is the analysis of the relationship between tax enforcement, tax compliance and tax morale within countries characterised by rapid introduction of market institutions and slow evolution of political regimes, such as transition economies. The paper investigates a coordination game in which the government is ex-ante committed to tax enforcement and can observe the proportion of tax-compliant agents in the economy. In turn, two groups of agents (third-party reporting and self-reported income) are keen to evade taxes unlawfully but have limited information on how many others evade taxes; their tax morale is therefore an endogenous function of agents' perception on tax compliance. The model predicts that the lower the quality of political institutions and the weaker tax morale, the less tax compliance can be achieved. The third-party reporting group will also be bearing higher tax burden than the self-reported income group. The model entails that having political institutions of good quality is not a sufficient condition to conduce to tax enforcement or tax compliance. Due to the endogenous role of tax morale, the government could be pushed ex-post towards poor or no tax enforcement. If good political institutions are not accompanied by good information about the enforcement of tax collection, there is scope for co-existence of poor tax enforcement, low tax compliance and weak tax morale. As such, this model well describes the tax evasion behaviour observed since the outset of transition from planned to market economy.     

The political economy of contributive pensions in developing countries

This paper sheds light on the role of public institutions as a way to reduce tax evasion through a close link between payroll taxation and pension benefits. We use a political economy model in which agents have the possibility to hide part of their earnings in order to avoid taxation and, where the public system is more efficient in providing annuitized pension benefits than the private sector. We show that in the absence of evasion costs, agents are indifferent to the tax rate level as they can always perfectly adapt compliance so as to face their preferred effective tax rate. There is unanimity in favour of the maximum tax rate and, the public pension system is found to be partially contributive in order to increase tax compliance and thus the resources collected. This, in turn, enables higher redistribution toward the worst-off agents. When evasion costs are introduced, perfect substitutability between compliance and taxation breaks down. At the majority-voting equilibrium, individuals at the bottom of the income distribution who are in favour of more redistribution, and those at the top who want to transfer more resources to the old age, form a coalition against middle-income agents, in favour of high tax rates. In addition to the previous tax base argument, the optimal level of the Bismarkian pillar is now chosen so as to account for political support.     

税收遵从成本对企业纳税遵从的影响分析——基于企业逃税模型的视角

在传统的A-S逃税模型中加入税收遵从成本因素分析以及对纳税遵从的影响,只适用于个人纳税。运用企业逃税模型分析税收遵从成本对企业纳税遵从的影响不仅符合企业实际,而且在我国更有现实意义。当前,应完善税收征管,简化税制,优化税收环境,从根本上降低企业税收遵从成本。     

The excess burden of tax evasion—An experimental detection-concealment contest

Tax evasion may cause social welfare losses due to the incentives of taxpayers to invest in the concealment and of tax authorities to invest in the detection of tax evasion. Reducing the investment of both parties at the same time would then lead to a Pareto improvement. Given that concealment and detection costs are hardly measurable in reality, we show in a controlled laboratory experiment that the welfare losses from a concealment-detection contest depend positively on the prevailing tax rate, but not on the penalty which is imposed in case of detected tax evasion. Hence, policy makers who are concerned about socially inefficient concealment and enforcement costs should focus on tax rates rather than penalty rates.     

On Teaching a Fractured Macroeconomics

One of the most interesting results in the tax evasion literature is that an increase in the income tax rate would increase tax compliance. Despite its peculiarity, this result has gained acceptance as a cornerstone for further developments of the rational tax evasion model. However, because of the mathematical format by which it is conveyed, this counterintuitive result has remained inaccessible to undergraduate students as well as to noneconomists. The author first introduces the rational tax evasion model in a nonmathematical style that is accessible to any reader. Second, he shows that the behavioral predictions of the rational tax evasion model can easily be obtained using a simple graphical representation of the optimum condition that involves the derivation of a demand curve for tax compliance.