I have a 403b retirement account from working at a private university in Massachusetts until I retired. Massachusetts taxed these contributions until 1998 and I had contributions to this account dating from before 1998. Since these contributions were already taxed in Massachusetts, that state exempts distributions from this account from state taxable income until these previously-taxed contributions have been recouped. I began taking my RMD from this 403b in January 2021 and moved to Maryland from Massachusetts in October 2021. Are the distributions I received after I became a resident of Maryland taxable on my Maryland income tax return or are they still exempt from state income taxation since I have not yet recouped the entire amount of the previously-taxed contributions? If they are still tax exempt, where do I indicate this on my Turbotax Maryland resident income tax return?
