This paper examines the effect of book‐tax differences on the probability that a transaction is audited and the probability that additional taxes are collected. It constructs a stylized model in which the taxpayer reports both financial accounting income and taxable income. The government observes both reports before deciding whether to conduct an audit. The analysis of the equilibrium yields two hypotheses. First, the probability that the government will audit a transaction is higher if the transaction generates a positive book‐tax difference (e.g., an expenditure that is deducted for tax purposes but capitalized for financial reporting purposes) than if the transaction generates no book‐tax difference. Second, conditional on being selected for audit, transactions with and without book‐tax differences are equally likely to have detected understatements of tax liability. These hypotheses are tested using Internal Revenue Service (IRS) data from the Coordinated Examination Program. The empirical tests are consistent with the predictions of the strategic tax compliance model.

We assert that the tax expense is a powerful context in which to study earnings management, because it is one of the last accounts closed prior to earnings announcements. Although many pre‐tax accruals must be posted in the year‐end general ledger, managers estimate and negotiate tax expense with their auditors immediately prior to earnings announcements. We hypothesize that changes from third‐ to fourth‐quarter effective tax rates (ETRs) are negatively related to whether and how much a firm's earnings absent tax expense management miss analysts' consensus forecast, a proxy for target earnings. We measure earnings absent tax expense management as actual pre‐tax earnings adjusted for the annual ETR reported at the third quarter. We provide robust evidence that firms lower their projected ETRs when they miss the consensus forecast, which is consistent with firms decreasing their tax expense if non‐tax sources of earnings management are insufficient to achieve targets. We also find that firms that exceed earnings targets increase their ETR, but this effect is less significant. By studying the tax expense in total, rather than narrow components of deferred tax expense, our results provide general evidence that reported taxes are used to manage earnings.

This paper examines whether the increased accounting guidance and reporting requirements of FIN 48 impact the adequacy and accuracy of tax reserves and the effect of auditor‐provided tax services on tax reserves. While we do not find FIN 48 affected the adequacy or accuracy of tax reserves on average, FIN 48 eliminated the differences in the tax reserve adequacy of firms with and without auditor‐provided tax services that existed prior to its adoption. We also find evidence of less premature releasing of tax reserves post‐ FIN 48. Our evidence is consistent with an increase in the comparability of reserves for firms that do and do not purchase auditor‐provided tax services, consistent with one of the FASB 's objectives for FIN 48.

This paper examines whether ties to politicians by corporate boards of directors weaken the effectiveness of tax authorities in constraining tax avoidance in China. We use a unique data set to measure geographic time‐variant tax enforcement, including the probability of income tax audit, the expertise of tax officers, and the consequences of underreporting tax liabilities. Based on a sample of 11,121 firm‐years from 2003 to 2013, we find that the deterrent effect of the probability that a firm's taxable income understatement will be detected and lead to heavy penalties is significantly undermined if the board is politically connected. To enhance our analysis, we use opportunities for income shifting, the most likely mechanism through which Chinese firms avoid taxes on an ongoing basis, to illustrate how connected boards exert power to unwind the constraining effect of tax enforcement. Overall, our results suggest that a board's ties to politicians can be a significant challenge to the effective enforcement of tax compliance in a politically controlled economy.