More than two million tourists visited the island last year, according to official figures, as Bali rebounded from the COVID-19 pandemic after imposing a zero-tolerance policy on rule-breakers.
When asked if the new tax would deter visitors, Koster said authorities did not believe numbers would dip.
“It’s not a problem. We will use it for the environment, culture and we will build better quality infrastructure so travelling to Bali will be more comfortable and safe,” he told reporters.
The palm-fringed hotspot has vowed a crackdown on misbehaving tourists after a spate of incidents that have included acts of disrespect to the predominantly Hindu island’s culture.
Bali immigration deported a Danish woman last month after she was filmed flashing to the public while riding a motorbike.
A Russian woman was also booted out of the island in April for posting a nude photo of herself in front of a sacred tree.
In June, the local government published a guide for tourists who wish to visit Bali after being pressed to do so by the island’s immigration office.