During my changeover from the very old ARC format (Paper type) to the somewhat New ARC format (Same Paper type), my Unique ID Number changed once from F139xxx (One English alphabet followed by 6 digits) to FC0139xxx6 (Two English alphabets followed by 8 digits). They added a “C”, a Zero and a 6 at the end. The “xxx” remained the same.
When I changed from ARC to APRC to TARC, the Unique ID number remained the same (FC0139xxx6).
It changed one last time when I got my Taiwanese ID to F16000XXXX
Did you have any issues having it updated in banks, contracts, etc.? Luckily, I did not have any issues updating my ID number at banks, Far East Tone etc.
Did your credit history change over smoothly or did you start over again? Yes, it changed over smoothly. Did not start over again
NHI records? It got carried over to my new ID number.
Yes, this could be the main reason as I had a very smooth transition as I’m very fluent in Chinese and didn’t have any communication issues.