From Enforcement to Capability: Tax Planning Capacity and Corporate Tax Compliance in Foreign Investment Enterprises in Azerbaijan

This study examines how external regulatory conditions and internal organizational capabilities shape corporate tax compliance among foreign investment enterprises (FIEs) in Azerbaijan. It develops an integrated framework that brings together enforcement-based factors, tax planning capacity, and institutional and governance quality. Using survey data from 266 foreign-owned firms, the study applies structural equation modeling (SEM) to analyse direct, mediating, and moderating relationships. The results show that stronger enforcement is associated with higher levels of compliance and encourages firms to develop tax planning capabilities. In turn, these capabilities contribute positively to compliance behaviour. The findings also indicate that tax planning capacity partially mediates the relationship between enforcement and compliance. In addition, institutional and governance quality moderates the link between enforcement and tax planning capacity, with the effect varying across institutional environments. Overall, the results suggest that corporate tax compliance is influenced not only by external regulatory pressure but also by firms’ internal capabilities and the broader institutional context. The study provides useful insights for policymakers seeking to improve compliance through coordinated regulatory and institutional reforms.