Sex differences in tax compliance: Differentiating between demographic sex, gender-role orientation, and prenatal masculinization (2D:4D)

We used decision-making experiments to investigate tax compliance of women and men and focused on gender-role orientation as well as on the second-to-fourth digit ratio (2D:4D), a putative marker of prenatal testosterone exposure. In 60 experimental periods, participants were endowed with a certain amount of money representing income and had to pay taxes. They were audited with a certain probability and fined in case of detected evasion. Both demographic sex and gender-role orientation were significantly related to tax compliance, whereas 2D:4D was not. Women and less male-typical individuals were more compliant than men and more male-typical individuals. Women and men also differed regarding their taxpaying strategies. Whereas for men audits increased subsequent evasion, women’s tax payments were less affected by prior audits.