Q&A: A house in one state, a spouse in another. What about taxes?

Dear Liz: My husband recently took a dream job in a different state. We are renting a place there, and it is his primary residence. We own our home in the “original” state, where I live and work. We intend to keep our home for another three to four years. How will this impact our taxes? We are married, filing jointly and our income is straightforward W-2. Will we need to file as residents in both states? I know most states will credit taxes already paid on income earned in another state, but which is our “primary” residence? I may base permanently in the new state because I can work remotely. I am confused about filing jointly when each spouse lives in a different state.

Answer: Please talk to an accountant about the best way to handle your returns. In some cases, spouses who live in different states can submit their federal tax returns as “married filing jointly” while filing their respective state returns as “married filing separately.” Other times, there may be tax advantages to filing jointly in one state, or the nonresident spouse will be required to file.

If you are required to submit a return to the nonresident state, your accountant can tell you whether you qualify for credits. Alternatively, there may be a reciprocal tax agreement between states that allows nonresidents to avoid taxes if they follow certain rules.

But you’ll want to be particularly careful if you currently live in a high-tax state with a reputation for aggressive residency audits such as California, New York and Illinois.

A state auditor may decide that your husband’s move is temporary and his income is thus subject to your state’s taxes. It would be up to him to prove otherwise, and that may not be as easy as changing his voter registration. A tax pro can help guide him, and later you, on the best way to establish residency.