Dataset of Explaining Taxpayer Adoption of Indonesia's Coretax System: Extending UMEGA with Trust in Government

The dataset contains anonymized survey responses collected from 149 individual taxpayers residing in Greater Jakarta, Indonesia. The survey was conducted to examine the factors influencing taxpayers’ behavioral intention to adopt the Coretax system using an extended Unified Model of Electronic Government Adoption (UMEGA) framework. The dataset includes demographic information and responses to constructs measuring Performance Expectancy, Effort Expectancy, Social Influence, Facilitating Conditions, Perceived Risk, Attitude, Trust in Government, and Behavioral Intention.