This paper examines the pervasiveness of tax evasion among firms in Indonesia and the characteristics associated with higher levels of noncompliance. Tax evasion is estimated through a randomized, double-list experiment embedded in a nationally representative survey of 2,955 registered firms. This revealed whether firms pay all the taxes they owe without them having to disclose this directly. Across both list experiments, around a quarter of the firms indirectly reveal that they have evaded taxes. Firms that do not export, face intense competition from informal firms, and believe tax administration is a major obstacle to their business are the most likely to evade taxes. These findings help to inform the enforcement activities of tax authorities in middle-income countries, which face substantial challenges in estimating levels of tax evasion and identifying noncompliant taxpayers.