How to Fill the 2026 Annual Income Tax Return in Coretax for an Employee with a Single Employer and Nil Status

KOMPAS.com - Filing the 2026 Annual Tax Return in Coretax has become an annual obligation for taxpayers who already hold an NPWP. There are still about 9 million taxpayers who have not reported the 2025 tax year SPT. The deadline for individual taxpayers is 31 March 2026. For corporate taxpayers, the Directorate General of Taxes (DJP) has given until 30 April 2026 to file the annual tax return. Bimo hopes taxpayers will report their annual tax return before the deadline to avoid penalties. ‘If possible, we aim for daily taxpayer activity filings above 250,000 [IDR]. So the shortfall of around 9 million taxpayers can be completed by the 31 March deadline for individuals and 30 April for corporate taxpayers,’ Bimo said. It should be noted that the following filing example is for employees who have only one employer and a tax status of Kepala Keluarga (K/0). The filing must be careful and precise because the answers chosen determine whether the taxpayer must fill a schedule or proceed directly to the next step. In the header section, several grey fields are prepopulated by the system, so they do not need to be filled again. For question 1.a about whether you receive domestic income from employment, select ‘Yes’. This answer will trigger Attachment L-1, Part D. Click ‘add’ to fill in the data: After finishing, click ‘Save’ and return to the Main SPT. For the other three questions in this section, select ‘No’.