If you have retirement contributions from a previous retirement system still on account, those contributions can be transferred direclty to our system and you will be entitled to maintain the same level of contributions you were paying in your previous employment.  Under current regulations, if you refunded those contributions, you will become a new member of the Montague Retirement System and therefore; you will be subject to the new member contribution rate of 9%, plus 2% on earnings over $30,000.00.    Once a member of the Montague System - you could then inquire about purchasing the previously refunded creditable service through a buy back.