Meta title: Filing Taxes in Two States: Reciprocity Explained | KR Taxes
Meta description: State reciprocity agreements decide if you owe tax twice. See which states have them, what to file, and how to avoid double taxation.
Filing Taxes in Two States: How Reciprocity Agreements Actually Work
If you live in one state and earn wages in another, a reciprocity agreement between those two states can mean you only pay income tax to your home state, skipping a second tax return entirely. But these agreements are narrower than most people assume: they generally cover W-2 wages only, not business income, rental income, or capital gains. For Arizona small-business owners, real estate investors, and high earners with income crossing state lines, knowing exactly what's covered, and what isn't, determines whether you're filing one return or several.
Key Takeaways
- Reciprocity agreements let residents of one state working in another pay income tax only to their home state, avoiding a second tax return on the same wages.
- These agreements almost always apply only to wages, salaries, tips, and commissions, not business income, rental income, or capital gains, according to Michigan's Department of Treasury.
- Arizona doesn't have traditional two-way reciprocity agreements. Instead, it offers a withholding exception for residents of California, Indiana, Oregon, and Virginia, paired with a tax credit mechanism, per the Arizona Department of Revenue.
- If your states don't have reciprocity, you're not taxed twice on the same dollar — your resident state generally gives you a credit for tax paid to the other state.
- Real estate investors with property in another state must still file a nonresident return there, regardless of any reciprocity agreement, because rental income isn't wage income.
How reciprocity agreements actually work
A reciprocity agreement is a deal between two states' tax departments: if you live in State A and work in State B, State B agrees not to tax your wages, as long as State A does the same for its residents working in State B. You give your employer an exemption form, they stop withholding for the work state, and you file one state return instead of two.
This only applies to a specific slice of income. Michigan's Department of Treasury states plainly that reciprocal agreements "do not apply to independent contractors, local taxes, or income other than compensation." Wisconsin's Department of Revenue draws the same line, noting that its reciprocity with Illinois, Indiana, Kentucky, and Michigan covers "salaries, wages, commissions, fees" earned as an employee, not business or investment income.
Which states actually have reciprocity agreements
There's no single national list; each agreement is between a specific pair (or small group) of states, almost all clustered in the Midwest and Mid-Atlantic:
- Illinois: Iowa, Kentucky, Michigan, Wisconsin
- Indiana: Kentucky, Michigan, Ohio, Pennsylvania, Wisconsin
- Iowa: Illinois only, per the Iowa Department of Revenue
- Kentucky: Illinois, Indiana, Michigan, Ohio, Virginia, West Virginia, Wisconsin
- Maryland: DC, Pennsylvania, Virginia, West Virginia
- Michigan: Illinois, Indiana, Kentucky, Minnesota, Ohio, Wisconsin, according to the State of Michigan
- Minnesota: Michigan, North Dakota
- Montana: North Dakota
- New Jersey: Pennsylvania
- North Dakota: Minnesota, Montana
- Ohio: Indiana, Kentucky, Michigan, Pennsylvania, West Virginia
- Pennsylvania: Indiana, Maryland, New Jersey, Ohio, Virginia, West Virginia
- Virginia: DC, Kentucky, Maryland, Pennsylvania, West Virginia, confirmed directly by Virginia Tax
- West Virginia: Kentucky, Maryland, Ohio, Pennsylvania, Virginia
- Wisconsin: Illinois, Indiana, Kentucky, Michigan
Notice what's missing: Arizona, California, Texas, Florida, and most states outside this Midwest-to-Mid-Atlantic corridor aren't on anyone's list. If you live in one of those states, you're working with a different tool: the credit for taxes paid to another state.
Arizona's version isn't quite reciprocity
Arizona is sometimes listed alongside "reciprocal" states, but that's not technically accurate. Arizona doesn't have a mutual agreement where both states waive tax on the other's residents. Instead, the Arizona Department of Revenue allows a nonresident employee working in Arizona to skip Arizona withholding if they're a resident of California, Indiana, Oregon, or Virginia, and they're eligible to claim Arizona's credit for taxes paid to another state on their home-state return. That combination, a withholding exception plus a credit, produces a similar practical result to reciprocity, but it's a one-directional accommodation built around Arizona's own credit statute, not a two-way pact like Michigan's formal reciprocal agreements, which are codified state-to-state arrangements rather than a one-sided exception.
To use it, you file Arizona Form WEC with your employer and claim the actual credit using Arizona Form 309, Credit for Taxes Paid to Another State or Country. You may still need to file an Arizona return even if your wages are exempt from withholding, particularly if you have other Arizona-source income.
What happens without a reciprocity agreement
If your two states don't have a reciprocity deal, you're not automatically taxed twice on the same income. The general mechanism is a credit for taxes paid to another state: your resident state calculates your full tax liability, then credits you for what you already paid to the nonresident state on the same income. You'll typically file:
- A nonresident return in the state where you worked, reporting only the income earned there.
- A resident return in your home state, reporting all your income, then claiming a credit for the tax paid to the nonresident state.
The credit usually caps out at what your home state would have charged on that same income, so if the work state's rate is higher, you may still owe a small difference. Illinois' own guidance to residents working in a non-reciprocal state confirms this structure directly: you report the income to Illinois and separately settle up with the other state.
Real estate investors: reciprocity doesn't cover your rental income
This is the nuance that trips up investors the most. If you own rental property in another state, reciprocity agreements between your home state and the property's state are irrelevant to that income, because reciprocity covers employee wages, not rental or business income. Michigan's Treasury guidance is explicit that a reciprocal-state resident "does have to pay Michigan tax on business income earned from business activity in Michigan," even while their wages stay exempt. The same logic applies in the other direction: an Arizona resident with a rental property in Oregon still files an Oregon nonresident return on that rental income, and separately claims Arizona's credit for taxes paid, regardless of the wage-only withholding exception described above.
What high earners should watch for
Reciprocity and credit-for-taxes-paid rules are built around ordinary wage withholding. Once your income includes equity compensation, K-1 income from a pass-through business, or investment gains sourced to another state, the reciprocity conversation mostly stops applying, and you're back to state-by-state sourcing rules and the credit mechanism. This is one more reason high earners often overpay without a proactive, multi-state review. If you're managing income across multiple states, it's worth a broader look at your overall tax planning strategy rather than assuming a single reciprocity form covers everything.
Getting your bookkeeping ready for multi-state filing
Filing correctly across two or more states starts with clean records showing exactly where income was earned and when. If your bookkeeping doesn't already separate income by state or track days worked in each location, that's usually the first gap to close before tax season, not during it. Our Accounting & Business Performance team can help set up that tracking so your multi-state return isn't a scramble every April.
Ready to sort out your multi-state filing?
Whether you're working under an actual reciprocity agreement, Arizona's withholding exception, or a straightforward credit-for-taxes-paid situation, the filing sequence matters and getting it wrong can mean paying more than you owe or missing a credit you're entitled to. Our team, introduced here, works with Arizona residents who have income, wages, or property in other states every year.
Schedule a free consultation to review your specific state filing situation before you file.
Frequently Asked Questions
How do I file my taxes if I worked in two different states?
If the two states have a reciprocity agreement, you generally file only in your resident state, after submitting an exemption form to your employer. If there's no agreement, you typically file a nonresident return in the state where you worked and a resident return in your home state, claiming a credit there for tax paid to the other state.
Can I file taxes twice for two different states?
Yes, and in non-reciprocal situations, you're expected to. Filing two returns doesn't mean paying full tax twice on the same income; the credit for taxes paid to another state is designed to prevent that. It just means two separate filings.
Can you owe tax to two different states if you work in one and live in the other?
Generally no, not on the same dollar, assuming you claim the credit or reciprocity exemption you're entitled to. Without claiming it, you could end up overpaying, since neither state automatically applies the other's credit for you.
How do taxes work when you live in two states during the year?
If you actually moved during the year, you're typically a part-year resident of both states, filing a part-year return in each and dividing your income based on when you lived where. This is different from living in one state permanently while working in another, which is the standard reciprocity or credit scenario.
Does moving to Arizona mid-year mean I get taxed twice on the same income?
No. You'd generally file a part-year resident return in your former state for income earned while living there, and an Arizona part-year return for income earned after you became an Arizona resident, without double-counting the same income twice.
Do reciprocity agreements cover self-employment or 1099 income?
No. Reciprocity agreements are built around employee wages, salaries, tips, and commissions. Independent contractor income, business income, and rental income generally aren't covered, and you'd need to look at each state's individual sourcing and filing rules instead.
