Salaried workers in pubs, hotels, cafes and restaurants will get top-up payments if they work more than 18 hours a week on weekends and public holidays, according to new rules brought in by the workplace tribunal.

Following a series of underpayments of salaried staff in hospitality due to extreme work hours, the Fair Work Commission will in September bring in limits on how many overtime and penalty-rate hours annualised wage staff can work under the hospitality and restaurant awards.