Only 3 Days Left! How to Report SPT via Coretax Mobile
Only 3 Days Left! How to Report SPT via Coretax Mobile
Jakarta, CNBC Indonesia - Reporting the Annual Tax Notice (SPT) is an obligation for all taxpayers in Indonesia. This obligation applies particularly to those who have already paid taxes automatically through salary deductions or purchases of goods and services.
The SPT reporting period begins in early January and runs until 31 March 2026 for taxpayers, especially individuals. Meanwhile, corporate taxpayers must submit their SPT by 30 April 2026 at the latest.
To facilitate reporting, the Directorate General of Taxes of the Ministry of Finance has officially launched the Coretax mobile tax system.
With this application, taxpayers can not only submit their annual SPT through the website https://coretaxdjp.pajak.go.id, but also via the M-Pajak app.
Coretax Mobile/M-Pajak can be used by individual taxpayers who have income from a single employer, and for submitting normal annual income tax (PPh) SPT (not corrections), with a nil annual SPT status (not overpayment or underpayment).
However, if taxpayers wish to correct their annual SPT and/or the SPT status to be reported is overpayment or underpayment, they can submit the annual SPT through the website https://coretaxdjp.pajak.go.id.
So, how do you report the Annual SPT through the Coretax Mobile app?
DJP employee Dewi Setya Swaranurani explained that, as with reporting the annual SPT, there are several documents that taxpayers must prepare for filling out the Annual SPT. Namely, proof of withholding documents from the income provider.
“Although withholding proof data is usually already synchronised in the Coretax DJP system, taxpayers are asked to prepare the withholding proof to ensure that the data displayed in the system matches the withholding proof received,” said Dewi, quoted on Friday (24/4/2026).
Second, prepare documents for dependents and family members to fill in the non-taxable income (PTKP); taxpayers are expected to prepare the family card and withholding proof.
And third, documents for assets and liabilities. The asset list must be filled in and cannot be skipped, while the liability ownership section may be left blank if there are no liabilities in the tax year.
Data That Cannot Be Edited
When filling out the annual SPT through Coretax Mobile, there is data that cannot be edited, such as taxpayer identity and family list. Therefore, taxpayers must update this data through its source on the website https://coretaxdjp.pajak.go.id.
This updating can be done through Coretax DJP by the taxpayer themselves or at the TPT counter at the KPP. Then, taxpayers can wait one day for the data synchronisation process. Taxpayers who have reported their annual SPT through Coretax Mobile/M-Pajak will have it synchronised to the Coretax DJP system in approximately one hour.
Here is the procedure for changing family tax unit data through Coretax DJP for taxpayers.
Log in via the website https://coretaxdjp.pajak.go.id using the population registration number (NIK).
Select “My Portal”.
Select “My Profile”.
Click on the “General Information” section, then click “Edit”.
Select the “Family Tax Unit” section, fill in the data according to the family card (KK).
Tick the taxpayer statement section, then click “Save”.
However, if taxpayers encounter difficulties in this data change process, they can contact Kring Pajak at 1500200 or visit the nearest tax office.
If the Husband-Wife NPWP is Joint, Can Coretax Mobile Be Used?
If husband and wife each receive income from a single employer, the answer is yes. The husband’s income from a single employer will be automatically filled in the app, and the wife’s income from a single employer will also be automatically filled.
This automatically filled wife’s income must be deleted and moved to final income because the wife’s taxpayer identification number (NPWP) is joined with the husband. In this annual SPT reporting, it must be ensured that the taxpayer’s annual SPT status is nil, not overpayment or underpayment. If the result is overpayment or underpayment, taxpayers must still report the annual SPT through the website https://coretaxdjp.pajak.go.id.