Police have shot a gunman in the shoulder after he fired at officers with a shotgun in Tasmania's northwest.

Officers were called to a property in Shorewell Park, near Burnie, about 8:30am on Sunday after reports an armed man was acting aggressively, making threats and firing a weapon.

Police tried to negotiate with the 25-year-old, urging him to disarm himself.

He fired at police before being shot in the shoulder by officers.

He was taken into custody at the scene, given first aid and taken to hospital.

Western District Commander Debbie Williams said the man is in a stable condition and is expected to undergo surgery on Sunday afternoon.

"We would like to thank the local community for their assistance as we carry out our investigations," she said.

"We appreciate their patience and understanding."

The Tasmania Police Professional Standards Unit has been advised and will investigate the incident.

Anyone with information has been asked to come forward.