Tax ramifications of living in one state and working in another
States can tax your income where you live and where you work. For many people, that’s the same state. However, there are also occasions when a worker may live in one state — say, Vermont — while working in another, like New York.
Seventeen states have reciprocity agreements to keep tax obligations simple.[1] For example, Virginia and Washington, D.C. have this type of agreement; if someone lives in, say, Fairfax, Va. but works in D.C., they only owe taxes in their home state of Virginia.
In most cases, though, the state where the employee worked would tax them on their wages, while their home state would tax them on all income from all sources.
Let’s look at someone who lives in North Carolina but works in South Carolina. Normally, they would be taxed at South Carolina’s rate (which could be as high as 7%) on all wages earned at work.[2] Then, North Carolina would tax their income at its flat 5.25% rate on all income from all sources.
To avoid double taxation, most states offer a credit for taxes paid to other states on earned income. In this case, the worker would file for their North Carolina tax returns and reduce their liability by what they paid in South Carolina. There’s a bit of complexity around dealing with two different tax codes, and because of varying tax rates, there may still be some additional income owed. Generally, though, this relieves taxpayers of paying double on their taxes.
A variant of this is publicly visible with professional athletes, who are charged “jock taxes” based on where they play their games. A player on the Dallas Mavericks, for example, would pay state taxes in Texas for their home games, but would pay Colorado state taxes for a road game against the Denver Nuggets.
However, the post-pandemic workplace has changed for a lot of employees. Rather than spending an hour (or more) commuting into the office, people are choosing to stay at home. That North Carolina resident is now working in North Carolina, as well, so the tax liability is only in one state, instead of two.
That seems like it would make things easier, and for many states, it does. But for seven states with “convenience of the employer” or “income sourcing” rules, it could potentially lead to double taxation.