How to File SPT in Coretax, Even with Extension Taxpayers Should Report Promptly
Finance Minister Purbaya Yudhi Sadewa has officially extended the deadline for filing annual tax returns (SPT Tahunan) in Coretax. Individual taxpayers (OP) now have until 30 April 2026, previously 31 March 2026. With this extension, taxpayers are encouraged to fulfil their obligations promptly. Before filing, taxpayers must activate their Coretax account, as explained below, sourced from pajak.go.id. In 2026, the Directorate General of Taxes (DJP) requires SPT filing through Coretax to facilitate the process without visiting a local tax office (KPP). - Access the website https://coretaxdjp.pajak.go.id - For taxpayers with an existing DJP Online account and a population registration number (NIK) matched to their taxpayer identification number (NPWP), select “Forgot Password” - Enter the NIK in the provided field. Then, choose the confirmation method, either email or phone number - Re-enter the corresponding email address and mobile number - Enter the captcha, tick the “Statement” checkbox, and click “Send” - Open the registered email inbox in DJP, click the password change link, and enter a new password - Subsequently, log in to Coretax using the NIK and the created password - The SPT filing process is not complete here. Next, create an authorisation code or electronic certificate - Go to the “My Portal” menu - Select the “Request Authorisation Code/Electronic Certificate” submenu - In the “Type of Digital Certificate” section, choose “DJP Authorisation Code” - Create a passphrase - Tick the statement and click “Save” - After obtaining the authorisation code, proceed to file the SPT - Select the “Notification Letter (SPT)” menu - Enter the “Notification Letter (SPT)” submenu - Click “Create SPT Draft” - Choose “Individual Income Tax (PPh Orang Pribadi)”, then click “Continue” - For “SPT Period Type”, select “Annual SPT” - Choose the period January 2025–December 2025, then click “Continue” - Select “Normal SPT Model”, then click “Create SPT Draft” - To start filling it out, click the pencil icon on the created SPT draft - It is important to first download the 1721-A1 withholding certificate This is the complete guide to creating and filing annual SPT in Coretax; hopefully, it is helpful.