Insurance losses from floods in the Hobart region this month have climbed to $27.99 million as the clean-up continues.

The Insurance Council of Australia says 4306 claims were lodged by Friday afternoon following the May 11 storms, which brought more than 130mm of rain to the state capital in 24 hours.

It last week declared the event a catastrophe, activating a disaster hotline for policyholders and establishing a taskforce.

Forums will be held in Hobart next month to provide information on making claims, timeframes for recovery and managing issues that may arise, including complaints.