Enrolled Agent. 5 years writing corporate (1120) tax software. 3 years 1040 tax preparation. Eighth year here at TurboTax on Community/AXC. Specialize in HSA and other health programs, and the Child and Dependent Care credit and/or exclusion
Did you have a code D in box 12 of your W-2? That would be a contribution through your employer to a 401(k) plan.
Are there other codes in box 12 like AA?
I am not sure what you question is, but look at this MA webpage and see if it answers your question - https://www.mass.gov/info-details/tax-treatment-of-pension...