The article I mentioned above about Finance Minister Sri Mulyani is not this one below . This one seems related to the General Provisions and Tax Procedures Law (KUP Law) , which I did not read yet . This article below is more complete and , I guess , it was used to originate the other mentioned above . As a reference , this article is dated less than 1 month before the issuance of the Omnibus Law .
-----------------------------------------------
From
https://pertapsi.or.id/rezim-pajak-penghasilan-untuk-ekspatriat-berubah-ini-kata-sri-mulyani
Title : Income Tax Regime for Expatriates Changed, Here's What Sri Mulyani Says (October 2020 - free translation from the original in Indonesian language)
The government has changed the taxation regime for foreigners working in Indonesia from a worldwide system to a territorial system...
Minister of Finance Sri Mulyani Indrawati said that the implementation of the new taxation regime is part of the changes to the Income Tax Law in the Job Creation Law (Omnibus Law, from poster).
"The imposition of PPh (income tax) for WNA who are domestic tax subjects is based on their income originating from Indonesia. So, we do not tax them if they have a job or source of income outside Indonesia," she explained...
The provisions regarding the change in the taxation regime for foreigners from a worldwide system to a territorial system are regulated in Article 4 paragraphs (1a), (1b), (1c), and (1c) of the KUP Law. Several of these paragraphs have only recently appeared in the Job Creation Law (Omnibus Law - from poster).
In accordance with the provisions of Article 4 paragraph (1a), foreigners who have become resident taxpayers are subject to PPh only on income received or obtained from Indonesia with 2 provisions. First, have certain expertise. Second, valid for 4 tax years calculated from the time they become residents.
"That is so that foreigners who work here [in Indonesia], what is taxed is their income originating from Indonesia," added Minister of Finance Sri Mulyani Indrawati.
The income referred to is income received or obtained by foreigners in connection with work, services, or activities in Indonesia with any name and in any form paid outside Indonesia.
However, the provisions of Article 4 paragraph (1a) of the KUP Law (General Provisions and Tax Procedures Law) do not apply to foreigners who utilize the Double Taxation Avoidance Agreement (P3B) between the Indonesian government and the government of the partner country or P3B partner jurisdiction where the foreign national earns income from outside Indonesia.
Further provisions regarding the criteria for certain expertise and the procedures for imposing income tax on foreigners in Article 4 paragraph (1a) of the KUP Law will be regulated by the Minister of Finance Regulation (PMK)...