Hi Bethany, The concept you're looking for is "nexus", which means whether a state has the authority to tax certain income. My tax advisor has consistently guided me (15+ years) that if I provide services for clients in other states, while I'm currently *in* MA, then only MA has nexus (my income from that client is only taxable in MA). But if I physically travel to the other state and provide services to that client FROM that state, then that state also has nexus (if they have a state income tax) and I would need to file an income tax return for that state. Keep in mind that income taxes paid to other states are deductible from your MA income tax bill, so you don't get double-charged. It's just a hassle to file more tax returns, in particular since the non-resident returns require you to apportion your income...the calculations are time-consuming. Good luck! Jeremy ======================== From: "Bethany Seeger" <bethany at seeger.ws> Subject: [Hidden-tech] Working remotely for out of state company Hi everyone, I recently started working remotely for an institution in another state. I know there are MA state tax implications, but unsure of what they are and the stuff I read online is unclear. I plan on talking to a tax accountant/lawyer, but also figured I'd ask this list since it's likely that some of you are in the same boat. If you have experience with this and have some advice, can you please email me, off list? I've read a few contradictory things online, so I'm mostly interested in personal experiences rather then web pages. Thanks, Bethany bethany at seeger.ws