Over 39 sushi businesses in Queensland, New South Wales and the Australian Capital Territory have breached workplace laws, according to a Fair Work Ombudsman audit.

Inspectors have found 37 businesses are underpaying their staff, with 29 businesses breaching record keeping and pay slip laws.

Fair Work Ombudsman Sandra Parker stated sushi eateries were often employing young migrant workers, who may not be aware of their workplace rights and entitlements.