Tax Office Conducts Coretax Training for Annual Income Tax Filing

The Tax Office’s regional directorate organized an online education session on annual income tax return (SPT) filing on 19 November 2025. The webinar was attended by 137 employees of Perum Jasa Tirta I. Tax educator Grameyru Prabu Edward presented the Coretax account registration process and how to obtain an authorization code.

Coretax is an online platform for submitting SPT and other tax services. Registering an account is the first step to access its features, and the authorization code serves as an electronic signature. Another educator, Akhmad Rivai Rusjdin, explained the steps for selecting the form, entering income data, and the need to detail assets in accordance with Article 3 paragraph 1 of the Income Tax Law.

Asset data must reflect the taxpayer’s situation as of 31 December, including acquisition year, value, and relevant notes. Although asset information can be synced from DJP Online, taxpayers must still verify and complete it in Coretax. Better familiarity with Coretax is expected to speed up and improve the accuracy of future SPT filings.