We moved from California to Massachusetts, and one of our W2s includes income earned in both CA and MA. When filing MA taxes, we come to "Income taxed by another state", but we are lost as to how to find the 5% income taxed by other states with we were a part-resident of MA. It seems no matter what number we put, it is an error. This number comes from Schedule OJC question 1, which references Form 1-NR/PY line 12 while a part-year resident that is taxed by other jurisdictions. Any help appreciated. We have one W2 that covers CA and MA income, one MA W2, two CA 1099, and one 1099 that covers both CA and MA income.
