What do non-taxable and taxable dollars represent?
The non-taxable dollars represent the deposits you paid into your TRS account prior to January 1988, as well as any service credit purchase you may have paid for with after-tax dollars. The taxable dollars in your account represent deposits you have paid into TRS since January 1988 as well as any service credit purchase you may have paid with a rollover of tax-deferred dollars from another retirement plan or IRA, plus all interest your account has earned from inception to date.