Indonesian Directorate General of Taxes (DGT)

How Qualysoft sustained Indonesia with a fully integrated Digital Tax Administration System: Improving revenue collection, transparency and taxpayer experience.

Indonesian Directorate General of Taxes (DGT)

Key Results

Significantly improved tax revenue collection efficiency
Increased transparency and trust in public administration
Intuitive self-service processes for filing, reporting, and payments
Advanced risk management and anti-fraud capabilities
Reduced operational and administrative costs
Automated double-entry bookkeeping with minimal human error

Summary

Indonesia now benefits from a state of the art digital tax administration system that improves compliance, drives sustainable revenue and efficiencies tax organization based on data-driven decisions.

Client

Indonesian Ministry of Finance, Directorate General of Taxes (DGT)

Location

Republic of Indonesia

Industry

Public Sector, Tax Administration

Size

Nationwide platform supporting 270+ million citizens and businesses

Services

End-to-end transformation of the national tax administration system [ Business process reengineering | Design and implementation of a Core Tax Administration System (CTAS) | Development of a secure, scalable taxpayer portal | Integration of risk management and compliance frameworks | Data migration, system integration, and ecosystem connectivity | Training, knowledge transfer, and operational support]

Technologies

.NET Core, Angular, Microservices, RabbitMQ, Tibero, CQRS, DDD, MassTransit, Docker, Kubernetes, Redis, OpenStack, Dapper, PrimeNG and Megaware Platform

Allocated Team

A globally distributed team of 90+ Qualysoft experts across Austria, Romania, Serbia, Albania, Hungary, Slovakia, Indonesia, Vietnam

Project Duration

4 years implementation (2021–2023) followed by 15 months of post implementation support and optimization  Completed in March 2026, marking a key milestone and transition to the next phase of development and ongoing enhancements with evolving fiscal priorities

Client Challenge

Indonesia faced a strategic need to modernize its tax administration to support sustainable economic development and fiscal resilience.

 Key challenges included:

  • Limited ability to mobilize domestic revenue despite economic growth
  • Fragmented, partially manual systems reducing efficiency and transparency
  • Increasing complexity of tax regulations and emerging tax models
  • Limited real-time visibility for decision-making and forecasting
  • Need to improve voluntary tax compliance and taxpayer experience

The existing system, dating back to 2014, required a complete transformation to meet modern standards of scalability, security, and digital accessibility.

Qualysoft Solution

The Digital Transformation of Indonesia’s Tax System

All-in-one solution for Tax Administration 3.0

Qualysoft, as a key consortium partner, designed and delivered a next-generation Core Tax Administration System (CTAS), a fully integrated, nationwide platform enabling end-to-end digital tax operations.

The solution includes:

  • Core Tax Administration System – central processing backbone
  • Taxpayer Portal – nationwide digital self-service interface


Key Solution Capabilities

  • End-to-end management of tax lifecycle: registration, filing, payments, audit, enforcement
  • Real-time processing and visibility of taxpayer data
  • Integrated risk assessment and compliance monitoring
  • Secure, paperless workflows and digital communication
  • Scalable microservices-based architecture for national-level performance

Qualysoft led software development and system integration, while collaborating with LG CNS on infrastructure and quality assurance.

The project was executed in close alignment with international best practices, supported by cooperation with organizations such as the International Monetary Fund (IMF).

Results

Indonesia now operates a modern, fully digital tax administration platform that significantly enhances efficiency, transparency, and scalability, laying the foundation for long-term fiscal sustainability and economic growth.

The implementation of CTAS has fundamentally transformed Indonesia’s tax administration:

  • Increased efficiency of tax collection through automation and digital processes
  • Simplified tax compliance via fully online filing, reporting, and payments
  • Enabled real-time taxpayer interaction and communication
  • Reduced administrative burden through a paperless, integrated system
  • Accelerated processing times for both taxpayers and authorities
  • Strengthened data accuracy, transparency, and governance


Overall Benefits

For Government:

  • Higher revenue collection capability
  • Improved transparency and public trust
  • Enhanced risk management and fraud prevention
  • Lower operational costs and administrative complexity

For Citizens & Businesses:

  • Easy-to-use digital services accessible anytime
  • Faster and more transparent processes
  • Clear visibility of tax obligations and status
  • Improved overall user experience and trust
Proven Impact & International Recognition

Qualysoft’s Digital Tax Administration solutions are proven at national scale, supporting governments in delivering measurable fiscal and operational improvements.

  • Successfully implemented in multiple countries, including Indonesia and Albania
  • Recognized by international institutions for improving tax administration efficiency and compliance
  • Designed to support long-term fiscal policy evolution, including emerging areas such as digital economy taxation and sustainability-driven reforms

These implementations demonstrate Qualysoft’s ability to deliver complex public sector transformations, from strategy to long-term operation.