State tax reciprocity agreements in the United States: 2026

Does this employee owe state income tax in one state or two? It is the question that quietly trips up finance teams the moment someone lives on one side of a state line and works on the other.

State tax reciprocity is what decides the answer, and getting it wrong leads to double withholding, surprise filings, and refund cleanups at tax time. Cross-border pay is exactly where payroll gets complicated, so this guide explains how reciprocity works, which state pairs qualify in 2026, the forms involved, and what to do when withholding goes wrong.

What is state tax reciprocity?

State tax reciprocity is an agreement between two or more states that lets an employee who lives in one state and works in another pay state income tax only to their state of residence. It prevents double withholding and removes the need to file a return in both states. There are currently 30 such agreements across 16 states and the District of Columbia.

The logic is simple. Income can normally be taxed both where it is earned and where the worker lives, which is also why the difference between payroll tax and income tax matters here. Reciprocity removes that overlap by assigning the wages to the home state alone, so the work state agrees not to withhold or tax them. This applies to state income tax for W-2 employees, not federal income tax withholding.

A simple real-world example: Maria lives in Philadelphia, Pennsylvania, and commutes across the river to Camden, New Jersey. Because Pennsylvania and New Jersey have a reciprocity agreement, Maria's employer withholds Pennsylvania tax, not New Jersey tax. She files one state return and pays tax only to her home state. Without that agreement, her employer would withhold New Jersey tax, and Maria would have to reconcile it later on her Pennsylvania return: more paperwork, more room for error.

According to the Tax Foundation, these 30 agreements form a corridor running from the Mid-Atlantic through the Midwest to parts of the Mountain West. With the idea clear, the next question is how reciprocity actually gets switched on.

How does state tax reciprocity work?

Reciprocity works through a single document: a state tax exemption form. The employee files it with their employer, and the employer then stops withholding the work-state tax and withholds the home-state tax instead. Until that form is on file, the employer must keep withholding for the work state, because reciprocity is never applied automatically.

The exemption form sits alongside the Form W-4 in the employee's file and changes how payroll deductions work for that worker. Here is the sequence in practice:

1. The employee confirms that their work state and home state have an active reciprocity agreement.
2. The employee completes the work state's exemption form (for example, Form WEC in Arizona or Form MI-W4 in Michigan) and submits it to their employer.
3. The employer stops withholding work-state income tax and begins withholding the employee's home-state tax, plus any local taxes the home state requires.
4. The employee files a single resident return in their home state.

In some cases the employee may also need to make estimated tax payments to their home state during the year, especially if the employer cannot withhold for that state. If you are setting this up for the first time, our guide to running payroll walks through the wider workflow.

What are the types of state tax reciprocity agreements?

State reciprocity comes in four forms: bilateral agreements, unilateral offers, commuter exemptions, and reverse credit arrangements. They differ in whether both states agree, one state acts alone, or relief comes through a credit rather than an exemption. Seventeen of the 30 agreements are bilateral, the most common form by far.

Bilateral agreements

A bilateral agreement is a mutual arrangement between two states. Each agrees to exempt the other's residents from tax on wages earned across the line, so the employee pays only their home state.

A Pennsylvania resident working in New Jersey, for instance, pays income tax only to Pennsylvania. Most agreements follow this model, and some statutes limit which income types are covered or which states qualify. Montana, for example, may only enter agreements with neighboring states.

Unilateral offers

A unilateral offer is when one state extends reciprocity to any state that provides the same treatment to its residents. Three states do this: Indiana, Minnesota, and Wisconsin. Indiana's law is the broadest, automatically exempting nonresidents whose home state exempts Indiana residents in return.

Commuter exemptions

Maryland and Virginia, which already hold bilateral agreements with several states, also operate a commuter provision built mainly around the District of Columbia. Because Washington, D.C., is not allowed to tax nonresident wages at all, a Virginia or Maryland resident working in D.C. pays tax only at home. The two states reciprocally exempt D.C. residents who commute into them.

Reverse credits

A reverse credit is relief that flows through a credit rather than an exemption. When an Arizona resident works in California, Arizona taxes the income and California grants a credit for the Arizona tax paid, rather than the other way around.

Arizona, California, Indiana, Oregon, and Virginia recognize reverse credits, though not in every pairing. This still requires filing in both states, much like the multi-state filing that self-employed and independent contractors often face, so it is weaker relief than a true reciprocity agreement.

Which states have tax reciprocity agreements in 2026?

At Wisemonk, we have handled global onboarding for more than 300 companies, and that scale teaches one lesson that travels across every payroll system: lock down the withholding details before the first pay run, not after.

In 2026, sixteen states and the District of Columbia have active reciprocity agreements. Kentucky participates in the most with seven, followed by Michigan and Pennsylvania with six each, while Iowa, Montana, and New Jersey each offer reciprocity with only one state.

The chart below lists every work state, its reciprocal home states, and the exemption form an employee must file. For the wider context, you can see our guide to employer payroll taxes and what belongs on a compliant pay stub.

Source: Tax Foundation and state departments of revenue. Reciprocity agreements change. This chart reflects agreements active as of June 2026; always confirm the current rule and form with the relevant state tax authority before relying on it.

Can reciprocity agreements change or be added?

Reciprocity agreements are voluntary, and in most states the tax administrator, not the legislature, makes the final call. That means agreements can be added, narrowed, or repealed, so a pairing that worked one year should be re-confirmed the next. Roughly 25 states with a wage income tax currently offer no reciprocity at all.

The clearest cautionary tale is Minnesota and Wisconsin. The two states held a reciprocity agreement for decades, but disputes over revenue-sharing payments led Minnesota to end it for the 2010 tax year, and it has not been restored. This kind of change matters most for a distributed workforce, where staff move across state lines and global mobility shifts who owes tax where.

At the federal level, proposals such as the Mobile Workforce State Income Tax Simplification Act have been introduced repeatedly to set a uniform threshold before a nonresident owes tax, but none has become law. For now, the rules remain state by state. When no agreement exists, a different set of rules takes over.

How is state tax handled in states without reciprocity agreements?

Having processed more than $20M in payroll for global teams, we have seen the same pattern everywhere: the most expensive cleanups begin when income is mapped to the wrong jurisdiction at the withholding stage.

When two states have no reciprocity agreement, the work state withholds its own income tax first, and the employee still owes tax in their home state. Double taxation is avoided through a credit: the home state grants a credit for taxes paid to the work state. The income is taxed once in total, but the employee must file two state returns to sort it out.

That credit is usually the lesser of the tax actually paid to the work state or the tax the home state would have charged on the same income. A short example shows why the totals even out:

• Imagine living in a state with a 5 percent income tax and working in a state with a 7 percent tax, on $60,000 of wages.
• The work state taxes the $60,000 at 7 percent, or $4,200.
• The home state would have charged 5 percent, or $3,000, and grants a credit up to that amount.
• The worker pays $4,200 in total, allocated across the two states, which is the higher of the two rates.

This protection exists because the U.S. Supreme Court ruled in 2015 that states must provide relief so the same income is not taxed twice. The catch is the compliance work: two returns, much like the multi-state position that workers who file taxes as independent contractors can run into, plus careful tracking of days worked in each state when the schedule is hybrid.

Which states have no income tax for nonresident employees?

Nine states levy no tax on wage income, so an employee working there owes no income tax and faces no withholding in that work state. They must still file and pay state income tax in their state of residence, because residency, not work location, determines where wage income is ultimately taxed. This is a common question when paying employees across multiple locations.

The nine states with no wage income tax are:

1. Alaska
2. Florida
3. Nevada
4. New Hampshire
5. South Dakota
6. Tennessee
7. Texas
8. Washington
9. Wyoming

If an employee lives in one of these nine states and works in another that does tax wages, the work state may still withhold, and the worker may need to file a nonresident return there. The reverse is the simpler case: live in a taxing state, work in a no-tax state, and only the home state collects. For teams spread across many jurisdictions, global payroll services exist precisely to keep this straight.

Do state tax reciprocity agreements apply to remote workers?

Yes, reciprocity applies to remote workers, but only when an agreement exists between the state where they live and the state their work is sourced to, and only after they file the correct exemption form. Remote and hybrid work has made this far more common, since employees now routinely live in a different state from their employer.

Two complications matter for remote teams. First, states vary in how many days a nonresident can work in a state before withholding is triggered, and hybrid schedules that split time across two states require tracking days and allocating income between them. Second, some states apply a "convenience of the employer" rule, where a remote employee's wages are taxed by the employer's state even if the person never physically works there, which can override the normal reciprocity logic.

In practice, remote workers should confirm their specific state pair, file the right exemption form, and accept that multi-state filing is sometimes unavoidable. To know more about keeping distributed teams aligned, read our guide to remote team management best practices, and for the operational side you can see our overview of remote workforce solutions and the remote workforce management software and productivity tools for remote teams that support it.

What should you do if the wrong state was withheld?

If your employer withheld tax for the work state when a reciprocity agreement should have applied, fix it in two steps. First, correct your withholding going forward by filing the exemption form with your employer. Second, recover the money already withheld by filing a nonresident return in the work state to claim a refund, while still reporting the income on your resident return.

A few practical points keep this clean:

• File the exemption form promptly: Until it is on file, the employer is required to keep withholding for the work state. This is part of the standard payroll process.
• Claim the refund through a nonresident return: Virginia, for example, has employees use Form 763-S to claim a refund of tax withheld in error.
• Watch for underpayment penalties: If you stop work-state withholding but your employer does not withhold for your home state, make estimated payments to your home state so you are not penalized at filing.
• Re-certify each year: Several states require the exemption form to be renewed annually, so a one-time filing is not always enough.

Recurring withholding errors are usually a sign of a setup problem, and our guide on choosing a payroll provider covers what to look for.

Does reciprocity cover business, rental, or other non-wage income?

In most cases, it covers only wage and salary income. If you earn other income in the work state, such as business income, rental property income, interest, or capital gains, that income can still be taxed by the work state, and you may need to file a nonresident return there even when a reciprocity agreement covers your wages.

There are also specific carve-outs worth knowing. Residents of Arizona, Oregon, and Virginia who work in California must file a California nonresident return even though a reverse credit arrangement applies, then claim an Other State Tax Credit to avoid being taxed twice.

If your income mixes wages with independent work, you can see our guide to what a 1099 contractor is and the wider taxes for independent contractors, since non-wage income is exactly where the rules diverge. When in doubt, confirm directly with the work state's tax department.

How do employers benefit from state tax reciprocity?

Reciprocity reduces payroll complexity by letting an employer withhold for a single state per employee, the home state, rather than juggling withholding and filings in two. That means fewer corrections, lower audit risk, and easier cross-border hiring, and it compounds when paired with payroll automation or outsourced payroll services.

The main advantages:

• Simpler payroll processing: Withholding follows the employee's home state, which lowers the risk of duplicate or incorrect withholding.
• One jurisdiction per worker: Whether or not an agreement applies, the employer withholds for only one state per employee, the home state with an agreement or the work state without one.
• Easier cross-state hiring: Reciprocity removes tax friction from hiring across state lines, widening the talent pool a company can reach. The same logic extends to hiring international employees, where cost matters as much as compliance, as our breakdown of cost per hire shows.
• Cleaner compliance: Remitting to a single state per employee streamlines reporting and reduces the chance of multi-state errors surfacing in an audit.

Capturing those gains comes down to a few disciplined habits.

What are the best practices for employers managing reciprocal agreements?

Across the 2,000+ employees we have helped companies onboard, the cleanest payroll setups share one habit: the correct withholding jurisdiction is settled before the first pay run, not patched afterward.

The core best practice, then, is to determine each employee's withholding state up front, then collect the right exemption form and keep clean records.

• Apply the correct withholding state: Withhold for the home state when reciprocity applies, and the work state when it does not. This holds for U.S. companies and for international employers with U.S.-based staff. Smaller teams can start with payroll services for small business.
• Collect and renew exemption forms: Get the form on file before adjusting withholding, and track which states require annual re-certification. Clear employment contracts help set this out from the start.
• Set expectations with employees: Tell workers upfront whether reciprocity covers their situation so they can plan filings and submit forms on time. This applies during onboarding and offboarding alike, including when you terminate an employee.
• Register where required and keep records: Depending on the work and residence states, you may need to register with one or more state tax authorities; clean records support accurate filings and smoother audits, the same discipline behind strong employer of record compliance.
• Get guidance when hiring across state lines: When you start hiring in neighboring states, confirm the rules with a payroll specialist or tax professional, since each new state pair can change the answer.

Where your payroll reaches beyond US borders, that same discipline is what we handle.

How Wisemonk helps

Wisemonk is an India-native EOR. We help global companies hire, pay, and manage talent without the overhead of setting up a local entity. State tax reciprocity is a US domestic matter that your US payroll handles, but the moment your team extends into a new market, local withholding, statutory deductions, and compliance work very differently, and that is the part we take off your plate.

Through our managed payroll service, we run fully managed payroll for your team there end to end, covering tax, deductions, and payroll compliance on your behalf, with the same discipline that keeps the state rules above clean for your US team.

We hold a 4.8/5 rating on G2, and you can see where this fits in our global payroll guide and through our Employer of Record service. If your team spans more than one country, talk to our payroll experts to see how we run the local side end to end. We are a leading EOR in India, expanding our services to the United States and the United Kingdom, so you get one partner for your broader global hiring journey.

What our clients say

Companies from the US, UK, and Europe trust us to build their teams compliantly and fast. Here's what our clients say:

"I'm very happy that I discovered Wisemonk. They have been a pure pleasure to work with, and their attention to detail is impressive. They helped us understand their pricing model, find top-qualified individuals, interview them, and then onboard them. I gave them criteria for the type of people we sought, and they delivered. The individuals they were able to find have been some of the best engineers I have ever worked with. I recommend Wisemonk to anyone who is in need of staffing assistance." - Dan Sampson, Head of Engineering at Cobu

"Working with the Wisemonk team has been a genuinely positive experience from day one. They've been consistently accessible and are building fantastic relationships with our local team. As someone based in the UK, I value the quality of compliance Wisemonk brings, I have full confidence when it comes to financial, legal, and HR matters. They've ensured our team is managed in line with local employment law and have also been flexible when we've wanted to go beyond statutory requirements. Whether it's increasing annual leave or tailoring health insurance, they've offered clear guidance to help us enhance the benefits we provide. It's been a great partnership." - Lisa Jones, Chief People Officer at Couch Health