I understand that income made overseas and then remitted into indonesia is taxed.
My understanding is that it is irrelevant whether or not you transfer that money from overseas to Indonesia. If you are a tax-resident in Indonesia and you earn money abroad, then this income is taxable in Indonesia - even if you do not transfer that money to Indonesia or convert it into IDR.
But of course, it can be that the country where you earned that money has a double tax treaty which might say that this income is only taxable where you earned it or where the company you work for is located. But also then it should not make a difference whether or not you transfer that money to Indonesia.
First question that you should check:
Are you a tax-resident in Indonesia by the definitions of the tax authorities? As far as I know, one criteria is if you have a KITAS/P. But even if not (in your case KITAP and so on is probably irrelevant since you are Indonesian), there are additional criteria of becoming a tax-resident here. I think an active NPWP is also sufficient to being treated as a tax-resident (not 100% sure about it).
Second step (if you are a tax-resident in Indonesia) would be to check the double tax treaty between the country where you earned that income and Indonesia. Check what the dtt says about who is allowed to tax that type of income.
Third step could be that you check if that type of income qualifies as non-taxable income if re-invested in Indonesia.
If you earned that money before you became a tax-resident in Indonesia, then the transfer to an Indonesian bank account itself should not be tax-relevant in my view - at least I never heard of any case like that. I mean, you transfer it from one account under your name to another account under your name. I don‘t know how anyone could judge that as income.
But as centurion stated...if it is a large amount it can happen that the authorities want to check the source of the money to ensure you earned it legally and declared it somehow in the past (in the country where you earned it/where you worked).
I hope I could help. Of course, I cannot guarantee that all the information is correct since I am not a tax consultant. If anyone has a different understanding or opinion, feel free to correct me
