Coretax Simulator Helps Taxpayers File 2025 Annual Returns
December 4, 2025 • Ben Asmadeus

JAKARTA – Ahead of the deadline for filing 2025 income‑tax annual returns, Indonesia’s Directorate General of Taxes (DGT) has made the Coretax Simulator available. The tool can be accessed online at ..
The Coretax Simulator serves as an online educational platform that reproduces the actual filing process for both corporate and individual taxpayers. Users log in with a 16‑digit National Identification Number (NIK) and a standard password, then follow step‑by‑step guidance.
Features such as pop‑up notifications and automatically generated draft returns help taxpayers prepare accurate filings before using the official system. The simulator is expected to improve compliance and reduce administrative burdens during the filing season.
Source: DDTCNews