This is another topic that has been discussed and outlined at length for a while. Since we are finally nearing going live with V2 we have to formally decide on some details.
There are currently no fees, this has helped hinder real members by encouraging short-term yield farming. Fees like these should have been in place at the original Harmony mainnet of FATExDEX.
An explanation of how the mechanisms of the fees work and the benefits can be found in this article, in the section under the same title as this proposal, and in prior Medium articles that are titled to reference V2.
These fees will not occur until the FATE redeploys on MATIC. WHY: it is easier for developers to focus on the FATE to MATIC redeploy and incorporate V2 features (there is also a membership rewards controller based on the time that is not being used immediately) than it is to deploy the new smart contracts on Harmony first.