No. Massachusetts does NOT tax military retirement pay.
"Noncontributory pension income or survivorship benefits
received from the U.S. uniformed services (Army, Navy, Marine Corps, Air Force,
Coast Guard, commissioned corps of the Public Health Service and National
Oceanic and Atmospheric Administration) is exempt from taxation in
Massachusetts." Page 9
https://www.mass.gov/files/documents/2018/01/18/dor-2017-inc-form-1-inst.pdf
