What Happens If I Have a Side Hustle in a Different State Than Where I Live?
A remote side project, a client based in another state, or work performed while visiting family across the border can all raise the same nagging question: does this side income belong to the state where you live, the state where you earned it, or somehow both. It’s a question a lot of people don’t think to ask until a tax form shows an unfamiliar state name on it.
In short
Earning side income connected to a state other than the one you live in can, in some situations, create a filing obligation in that other state, in addition to your home state’s return. Whether that actually happens depends heavily on the nature of the work, how much was earned, and that state’s specific rules — some states have reciprocal agreements or minimum income thresholds that avoid double filing, while others don’t. Because the details vary so much, this is a case where checking the specific rules for the states involved matters more than any general rule of thumb.
Why the state matters at all
States generally tax income based on some combination of residency and where the income was “sourced” — meaning where the work was actually performed or where the paying client or business is located, depending on the state’s rules. A side hustle that’s fully remote and performed from a home state usually doesn’t trigger another state’s filing requirement just because a client happens to be based elsewhere. But physically working within another state’s borders, even temporarily, can be treated differently by that state’s tax code.
Situations that tend to raise the question
- Freelance or contract work for an out-of-state client. Sourcing rules vary, but many states focus on where the work was performed rather than where the client is located.
- Temporary work while traveling or visiting. Some states have a minimum number of days or dollar threshold before requiring a nonresident return.
- Reselling or gig work with a physical presence in another state. Attending markets, events, or deliveries across a state line can sometimes create a more direct connection to that state.
What a nonresident return generally involves
If a filing obligation does exist in a state other than home base, it typically takes the form of a nonresident tax return, reporting only income connected to that state rather than all income earned during the year. Most home states then provide a credit for taxes paid to the other state, which is designed to prevent the same income from being taxed twice — though the mechanics of that credit vary and don’t always offset the full amount. This is one more reason keeping side hustle income in a account separate from everyday spending can make it easier to see exactly how much was earned and where, before tax season arrives.
Keeping the paper trail clean from the start
Because state-by-state rules hinge on details like where work was physically performed or how many days were spent in a location, keeping basic records — dates, locations, client details — as the income comes in is far easier than reconstructing it later. This overlaps with broader recordkeeping habits that matter for any inconsistent or growing side income, regardless of which states end up being involved. General guidance on how long tax records should be kept applies here too, since a multi-state question is exactly the kind of situation where old documentation can matter years later.
Worth remembering
A side hustle that crosses state lines doesn’t automatically mean a complicated tax situation, but it’s a genuine possibility worth checking rather than assuming away. Because sourcing rules, reciprocal agreements, and income thresholds vary so much between states, looking up the specific rules for the states actually involved — or asking a tax professional familiar with multi-state filing — is a more reliable path than guessing based on how a single-state situation would normally work.