In most cases, people chose to pay their fines at a chain convenience store, Post Office or wire by ATM transfer payment. Money can also be paid directly at the Taichung Motor Vehicles Offices:

2, YuanYou Road, Sec. 1, Dadu District, (04) 2691-2011.
77, BeiTun Road, Beitun District, 0800-231-035, (04) 2234-1103

Useful Links
Taichung City Motor Vehicles Station