How to Prepare SPT in Coretax, Reporting Deadline Extended to 30 April 2026

Jakarta - The Finance Minister, Purbaya Yudhi Sadewa, has extended the deadline for filing annual tax returns (SPT Tahunan) via Coretax.

Individual taxpayers (OP) and corporate taxpayers have been granted until 30 April 2026 to file, up from the previous deadline of 31 March 2026.

This extension is hoped to be utilised to the fullest by taxpayers.

Before filing, taxpayers must activate their Coretax accounts, as explained below, sourced from pajak.go.id.

This is to facilitate reporting without needing to visit the Tax Office (KPP).

Coretax Account Activation

The SPT filing process is not complete here. Next, create an authorisation code or electronic certificate.

After obtaining the authorisation code, proceed with the SPT filing.

It is important to first download the 1721-A1 withholding certificate.

Thus, this is the complete guide to preparing and filing annual SPT in Coretax; hopefully, it is useful.