Over 100,000 business customers, including taxi owners, will receive their refund in the mail.
The average refund will be $265 for businesses and $1255 for taxi owners.
In 2017 the NSW Government overhauled the old green slip scheme to create a more affordable, lower cost scheme.
In addition to lower premiums in 2018, the government is providing partial refunds to 4.2 million vehicle owners who paid too much in 2017.
Minister for Finance, Services and Property Victor Dominello said $52 million would be returned to business customers over the coming weeks.
Individual policy holders will be able to access their refunds online through Service NSW in the coming months.
Sydney drivers will receive the largest refunds, at an average of $70 and country drivers will receive $30.