Last reviewed 2026-09-13 · 6 min read
A lot of freelancers assume that if a client is based in another state, they might owe taxes there too. It's a reasonable worry — but for most self-employed people doing remote work, the state where a client happens to be located is not the main factor in figuring out where you owe state tax. What usually matters more is where you live, where you actually perform the work, and in some cases whether you have a more substantial connection to another state.
This is also an area where TaxStow can't give you a definitive answer. State tax rules for self-employed and remote workers vary enormously — some states have no personal income tax at all, some have specific rules about services performed within their borders, and some have reciprocity agreements with neighboring states. This site focuses on federal tax planning; for state-specific rules, your state (and, if relevant, your client's state) department of revenue is the authoritative source.
The rest of this guide is about the questions worth asking, not the answers those states will give you — those answers depend entirely on which states are involved and the specifics of your situation.
Client location usually isn't the deciding factor
It's a common assumption that billing a client in another state creates a tax obligation there. For most freelancers working remotely — writers, designers, developers, consultants — the location of the client generally isn't what triggers a state filing requirement. States generally tax based on residency and on income earned from work actually performed within their borders.
That said, some states have rules that look at where the benefit of the service is received, or have specific provisions for certain types of income, and these can differ from the general pattern. This is exactly the kind of question to direct to a state revenue department or a tax professional familiar with that state, rather than assume based on general patterns.
Your state of residence is usually your starting point
In most cases, the state where you live and are considered a resident will want to tax your self-employment income, regardless of where your clients are based. If you live and work entirely from your home state, that state's rules — including whether it has an income tax at all — are typically the primary thing to understand.
Some states have no personal income tax, which changes the picture considerably. Others have complex rules for residents with income from multiple sources. Check your own state department of revenue's website for how it treats self-employment or business income for residents.
Physically working in another state can matter more than a client's address
Where the deciding factor tends to shift is when you physically perform work in another state — for example, traveling to a client's office, working from a second home for part of the year, or relocating mid-year. Performing services while physically present in a state can create a filing obligation there, separate from anything about where the client is headquartered.
If you split time between states during the year, keep records of where you were physically working and for how long. This kind of documentation is often what a state will ask for if your filing status is ever questioned.
Reciprocity agreements and credits for taxes paid to another state
Some neighboring states have reciprocity agreements that simplify taxation for people who live in one state and work in another, and many states offer a credit for taxes paid to another state to reduce the risk of double taxation. Whether any of this applies to you depends entirely on which two states are involved.
Rather than guess, search your resident state's department of revenue site for terms like "reciprocity" or "credit for taxes paid to another state," or contact the department directly.
Moving mid-year adds another layer
Freelancers who relocate during the year often need to think about part-year residency in two states, which usually means allocating income earned before and after the move. The rules for how to split income, and which state taxes what, are set by each state individually.
If you moved during the tax year, this is a good time to consult a tax professional or your states' revenue departments directly rather than estimate on your own — part-year and multi-state returns are one of the more error-prone parts of state filing.
Local and city-level taxes
On top of state rules, some cities and localities impose their own income or business taxes on self-employed residents or on people performing work within city limits. These are separate from state income tax and are administered by the local government, not the state revenue department.
If you live or work in a city known to have a local income tax, check that city's or county's finance department for how it treats freelance or self-employment income.
Where to actually get answers
Because these rules genuinely vary by state and change over time, the most reliable step is to go directly to the source: your state's department of revenue (sometimes called the department of taxation or franchise tax board), and the equivalent agency in any other state where you might have a connection through work.
A tax professional licensed in the relevant state, or one with multi-state experience, can also help you sort out filing requirements if your situation involves more than one state.
Takeaways
- ·A client's location generally doesn't determine your state tax obligations — your residency and where you perform work usually matter more.
- ·State income tax rules vary enormously; some states have none, others have detailed sourcing rules.
- ·Physically working in another state, even temporarily, can create obligations there.
- ·Reciprocity agreements and credits for taxes paid to another state can reduce double taxation, but only apply between specific states.
- ·For anything state-specific, check your state department of revenue directly — this site focuses on federal planning.
Sources and further reading
Federal tax planning information only. TaxStow is not a tax preparer and this is not tax advice. State and local rules are separate, and a qualified professional can account for details this page cannot.