Lifestyle Communities (ASX:LIC) will offer all existing homeowners the option to move to the new deferred management fee (DFM) model, according to a Tuesday filing with the Australian bourse.

To date, the DFM under the company's certain residential site agreements with homeowners signed before July 7 cannot be calculated as a precise amount, the filing said.

Under the new model, the fee will be calculated on the homeowner's purchase price and pro-rated over five years to a maximum of 20% of the price, the filing added.

If all homeowners move to the new model, the company expects the carrying value of the DMF component of its investment properties as of June 30 to see a potential adjustment of up to AU$117 million.