The QPP contribution rate for a Tier VI member is subject to change each year as of January 1, the start of the new "plan year." TRS uses salary/wage information provided by your employer(s) when we determine your contribution rate. Therefore, if you are a Tier VI member who disagrees with your QPP contribution rate, your first step should be to contact your employer(s) to ensure all of your salary/wage information is correct. TRS would correct your contribution rate, if necessary, only based on updated information from your employer(s).