You can file an original nonresident state return for both years, then amend your state returns for your resident state to obtain the credit for taxes paid to another state.
Resident State: All income worldwide is required to be
reported on your resident state return. Any money that is also taxed in a
nonresident state allows you to use "credit for taxes paid to another state" when you complete your resident state return.
Your resident state does not want you to pay tax twice on the same
income. The credit will be the amount of tax charged by the nonresident
state or the tax that would have been charged by the resident state, whichever
is less.
Nonresident
State: Any money earned in a
nonresident state is required to be reported on that state tax return (with the
exception of reciprocal agreements which does not apply in this case).
The nonresident state will tax any income earned that is derived from that
state or while you were in that state for work.
To amend your tax
return use the information below and be sure to read it completely before you
begin so that your original figures are entered on the amendment appropriately.
The IRS does not allow the amended return to be e-filed therefore you must
mail the return. Instructions will be provided including the address.
Your state return should be included in the amendment if applicable. (see
images attached)
