Due to the system in Taiwan not really being set up for APRC and ARC holders, you will be frustrated to find that you cannot simply use your health insurance card to login to the portal like a local. – This is something you need to get used to in Taiwan.
However, this is one way… the Alien Citizens digital card. Our partners over at foreignersintaiwan have a guide: https://www.foreignersintaiwan.com/blog-370963385326684/taiwan-alien-digital-citizen-certificate-faq
First, I suggest using Chrome. Chrome will often translate the Chinese characters into English for you.
Enter in your details.
Scroll down and tick ‘agree’ and hit ‘sure’
Go to ‘Query job’ and then click “Workers’ pension personal account information”
And there you have it! Done! If you used Google Chrome, you will be able to view it in English.