I expect the other requirements remain the same.
I could be wrong though so take this with grain of salt.
MIn 5 years residency unbroken (get proof from the immigration agency), clean record , Chinese proficiency (72 hours of Chinese classes with cert to prove it), current ARC and passport copy.
You need to apply at your local household registration office for the 歸化 document..they then submit it to the ministry of interior I think. The household registration office have people who will guide you through the steps.
So far above is what I submitted...they can be pretty anal about having it in the right format it has to be all in Chinese for instance. They will give you clear instructions what they want follow to the letter.
They may also delve into your court record without telling you .....
They do not need tax statements and hopefully do not delve into them...
As I have started applying already I need to figure out if I can continue with current application and then submit my professional record to executive yuan for review (I should qualify working in two of the key tech fields in economic category) so I don't need to renounce my original citizenship....that's the plan!!