Richard Sattler has expressed his disappointment in the loss of sponsors for the event, chiefly the Spirit of Tasmania. This, according to Mr Sattler, has to do with the horse deaths on the Spirit of Tasmania in 2018.

"[The] Spirit were one of our biggest sponsors and they're not sponsoring us anymore and we pay a premium to bring horses down," he said.

"From our point of view it's become very hard with the changing of regulations and rules... that have been in place for years have changed.

"We have to transport them down from the mainland and it's becoming more complicated all the time and much more expensive."

Mr Sattler said the sponsorship issues may impact the polo's future.

"We'd be really disappointed ... we put it together and make it a fun show in an area where no one thought we'd be able to put on an event like this," he said.

"We basically get a full house every time, but we don't always get the co-operation we'd like to get surrounding that - we end up picking up the tab for everything."

Dorset Mayor Greg Howard said any event that brings people from outside the district, for what is often a weekend visit, makes a very valuable contribution to the local economy.

"It helps put Dorset on the map. It would be disappointing if it didn't happen... it's something different and something people don't see all the time. It's as much a social day outing as what it is about the sport itself," he said.

The council is not involved in the event due to it being a private function.

"The council did put $100,000 into sealing the road into Barnbougle when the golf courses got going... that's something that's unusual for a private enterprise but it was money well spent because the golf courses have proven to be highly popular and highly successful," Mr Howard said.

North East Tasmania Chamber of Commerce president Cynthia Summers said the event was a major boost to local accommodation and businesses, particularly in the Bridport area.

"It would be a shame if it could not continue," she said.