#Coretax Simulator

Purbaya Claims Coretax Has Positive Impact as Underpaid Tax Returns Surge

The DGT Coretax System is boosting tax compliance, with underpaid tax returns rising sharply as tax oversight becomes more effective.

Jul 20, 2026

Absorbing Hundreds of Billions in Budget, Coretax Still Faces Technical and Adaptation Challenges

Coretax 2025 has absorbed a budget of IDR 337.1 billion and has reached full implementation status, yet it continues to face technical issues and user adaptation challenges. Here’s a look at its achievements, efficiency gains, and remaining hurdles.

Apr 27, 2026

MUC Holds Taxation Update 2026 in MM2100 Industrial Area, Discusses Coretax Challenges

MUC Consulting held the Taxation Update 2026 in the MM2100 industrial area, discussing strategies for corporate income tax return filing, Coretax challenges, and SP2DK trends for companies.

Feb 18, 2026

How to Activate Your Coretax Account: A Mandatory Step Before Filing Your Annual Tax Return

Activating your Coretax account is mandatory to file your Annual Tax Return (SPT) and access various tax services. This article explains the legal basis, activation steps, and the risks of not activating your account.

Oct 24, 2025

MUC BIJAK Vol. 6: A Comprehensive Guide to Filing Corporate Annual Tax Returns via Coretax

Through MUC BIJAK Volume 6, MUC Consulting provides a comprehensive walkthrough of the steps for filing Corporate Annual Income Tax Returns using the Coretax system. Featuring speakers from the DGT and MUC tax practitioners, this webinar explores guidance, challenges, and practical solutions for tax reporting in the Coretax era.

Oct 16, 2025

BKPM Tax Incentive Services Now Integrated with Coretax

The DGT and BKPM have officially integrated tax incentive services through the Coretax system. This collaboration is expected to strengthen investment and boost state revenue.

Oct 7, 2025

MUC BIJAK Webinar: Strategies for Facing Tax Audits in the Coretax Era

A new era of tax audits has begun with the implementation of Coretax. Join the MUC BIJAK webinar to gain insights into the digitalization of tax procedures, understand the risks involved, and learn effective strategies to handle the latest tax audit processes.

May 14, 2025

The Coretax System Remains Troubled, DGT Apologizes.

The Directorate General of Taxes (DGT) apologizes for the issues encountered in the implementation of the Coretax system, which was introduced on January 1, 2025. These issues have caused inconvenience and delays in tax administration services for taxpayers.

Jan 10, 2025

Government to Integrate Coretax with Other Administrative Systems for Better Supervision

The government will integrate the Coretax tax administration system with other administrative systems to enhance tax compliance monitoring.

Jan 9, 2025

Try Coretax Now: Explore the Pre-Implementation Version

The Coretax system is set to be officially implemented on January 1, 2025. However, it is now accessible to taxpayers during the pre-implementation phase until December 31, 2024. 

Jan 8, 2025

Gain Insights into PMK 81/2024 through MUC BIJAK Webinar

MUC Consulting will host a webinar titled MUC Bicara Pajak (BIJAK), which will focus on Minister of Finance Regulation (PMK) Number 81 of 2024 regarding the implementation of Coretax.

Dec 9, 2024

DGT Sends Coretax Updates Through Email and WhatsApp, Did You Get Yours?

To provide an understanding of Coretax usage, the Directorate General of Taxes (DGT) disseminates information on the application to taxpayers.

Dec 2, 2024

Provisions on Taxpayer Accounts and Electronic Certificates in PMK 81/2024

With Coretax, we are required to have a dedicated account through activation and an electronic certificate for signing to fulfill tax obligations.

Nov 25, 2024

Taxpayer Registration Guide: PMK 81/2024

Minister of Finance Regulation (PMK) Number 81 of 2024 introduces changes to various provisions regarding taxpayer registration, the format of the Taxpayer Identification Number (TIN), and the determination of Non-Resident Tax Subjects (SPLN).

Nov 21, 2024

Here are Steps to Create an XML file for Coretax

Nov 18, 2024

Coretax Adopts XML Data Format: Download the Templates and Converter!

The Directorate General of Taxes releases XML data format templates and converters that replace CSV and PDF forms. Taxpayers can download these tools directly from the official website, pajak.go.id. 

Nov 18, 2024

Government Releases PMK 81/2024 on Coretax, 42 Old Regulations Revoked

To implement the Coretax System, the government has released Minister of Finance Regulation (PMK) Number 81 of 2024.

Nov 6, 2024

Post-Coretax: 14 Taxpayer Registration Procedures Changed, Here is the Details

The Directorate General of Taxes (DGT) has confirmed that following the launch of the Core Tax Administration System, known as Coretax, the taxpayer registration process will undergo significant changes.

Oct 3, 2024

Coretax Simulator Launched: Experience the New Advanced Tax System!

The Directorate General of Taxes (DGT) has launched a new tax administration system simulator, Coretax, as a tool to introduce the features and services of the application.

Sep 30, 2024