The US firm announced last week that it would suspend business in Taiwan from Friday after the government raised the maximum penalty for Uber drivers to USD 804,000 - the highest in the world.
The Transport Ministry last week said it was preparing to charge the firm Taiwanese dollar 230 million in penalties.
Uber has racked up fines for running a business without the proper registration to operate as a taxi service since it entered the Taiwan market in 2013.
Single mother Fiona Yang, 38, said Uber had been her main source of income for the past two years as she juggles earning a living and raising two children.
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"I can understand why they had to suspend operations. The penalties are outrageous," she told AFP.
"It has a big impact on me. How am I going to raise my kids?"
Uber said last week it hoped the suspension would prompt action from President Tsai Ing-wen, who is pushing for the island to foster its own "Asian Silicon Valley".
Taiwan's suspension came after Uber halted services in Hungary last July due to new legislation that stops drivers from making money with their own vehicles.
The smartphone app has faced stiff resistance from traditional taxi drivers around the world, as well as bans in some places over safety concerns and questions over legal issues, including taxes.
Uber insists it is a platform connecting drivers and passengers, not a transport business like taxi firms.