State tax reciprocity agreements in the United States: 2026

Does this employee get taxed in one state or two?

That question comes up constantly in payroll and HR. It sounds simple. It rarely is.

Hiring happens across state lines all the time. Payroll gets configured. Withholding starts. Taxes get remitted. Everything looks fine until tax season, when employees discover they owe money in two states, or employers find out they have been withholding for the wrong one all year.

State tax reciprocity is one of the most misunderstood areas of US payroll compliance. Part of the confusion is that multiple arrangements get labeled reciprocity when they work very differently. Part of it is that even true reciprocity agreements have state-specific conditions that most guides do not mention.

This article breaks down exactly how state tax reciprocity works, which states have genuine agreements, which ones use reverse credits instead, what the conditional rules are for each state, and what the convenience of employer rule means for remote teams in 2026.

What is state tax reciprocity?

State tax reciprocity refers to an agreement between two or more states that allows employees to pay income taxes only to their state of residence, even if they work in a different state.

Under a true reciprocity agreement, the work state agrees not to tax income earned by residents of the partner state. The employee pays income tax exclusively in their home state. The employer withholds for the home state, not the work state. The employee files a single state return.

Without reciprocity, income can technically be taxed in both the state where it is earned and the state where the employee lives. Every state with an income tax provides a credit for taxes paid to another state, which prevents literal double taxation. However, the employee still owes filings in both states, and if the work state has a higher tax rate than the home state, the employee may owe additional money.

A real-world example

Maria lives in Philadelphia, Pennsylvania, and commutes to Camden, New Jersey, to work.

Pennsylvania and New Jersey have a true reciprocity agreement. Her employer withholds Pennsylvania tax, not New Jersey tax. She files one state return, pays taxes only to Pennsylvania, and never has to interact with New Jersey's tax authority.

Without that agreement, her employer would withhold New Jersey taxes. Maria would still owe Pennsylvania taxes as a resident. She would claim a Pennsylvania credit for the New Jersey taxes paid, which would cover most or all of the Pennsylvania liability. But she would have to file in both states and track the credits manually.

Reciprocity eliminates that complexity. That is the practical value. Not every cross-border arrangement works this way, the next question for employers is how true reciprocity differs from the reverse credit setups that often get mislabeled as reciprocity.

What is the difference between true reciprocity and reverse credits?

This is the most commonly misunderstood part of state tax reciprocity, and getting it wrong leads to real compliance errors.

Many guides, including some state revenue agency summaries, list Arizona, California, Indiana, Oregon, and Virginia as having reciprocity agreements. They do not, in the traditional sense. These states use reverse credit arrangements, which work differently.

True reciprocity vs. reverse credits

True reciprocity: The work state agrees not to tax nonresidents from the partner state. The employee pays tax only in their home state and files only one return. The employer withholds for the home state exclusively.

Reverse credit: The nonresident work state allows a credit against its own income tax for taxes paid to the employee's home state. The employee still owes taxes in both states, still files returns in both states, and calculates the credit at filing time. Filing complexity is not eliminated.

From a practical payroll standpoint, in a true reciprocity state pair, the employer withholds for the home state only. In a reverse credit state pair, the employer typically withholds for the work state, and the employee reconciles through their home state return.

The Tax Foundation, the leading authority on this topic, explicitly does not classify reverse credit arrangements as reciprocity agreements. When evaluating whether reciprocity applies to your employees, confirm you are looking at a true bilateral or unilateral agreement, not a reverse credit arrangement.

Once you know you are looking at a real reciprocity agreement, the next layer of nuance is how that agreement was formed, because that determines how stable it is.

What is the difference between bilateral and unilateral reciprocity agreements?

Not all reciprocity agreements are structured the same way. Understanding the difference matters when evaluating whether an agreement can change without warning or whether new state pairs might qualify automatically.

Bilateral agreements

A bilateral agreement is a formal, negotiated arrangement between two specific states. Both states explicitly agree to exempt residents of the other from income tax on wages earned within their borders. Seventeen of the 30 existing reciprocity agreements are bilateral.

In some bilateral agreements, state statutes define exactly which income sources the agreement covers. In others, revenue officers have discretion to conform to the reciprocating state's policy. Montana is a clear example of a state with explicit limits: Montana law restricts reciprocity agreements to contiguous states only, meaning states that share a physical border.

Unilateral agreements

A unilateral agreement works differently. Instead of a formal negotiated pact, the state automatically extends reciprocity to any state that provides similar treatment to its own residents.

Three states currently operate this way: Wisconsin, Minnesota, and Indiana.

Indiana's law captures the principle clearly. Nonresidents of Indiana who earn income within the state are exempt from Indiana taxes if their home state has a reciprocal provision exempting Indiana residents from taxes when they earn income there.

The practical outcome for the employee is the same. But the legal mechanism means these states can gain or lose reciprocity relationships based on changes in other states' laws, without a formal renegotiation. For employers managing payroll across these states, it is worth confirming agreement status annually rather than treating the current list as permanent.

With the structural background clear, here is the current map of which states actually have these agreements in place right now.

What state-by-state reciprocity agreements exist in 2026?

Here is the updated picture for 2026. There are currently 30 true reciprocity agreements across 16 states and the District of Columbia. These form corridors mainly from the Mid-Atlantic through the Midwest into parts of the Mountain West.

For reciprocity to apply in any of these state pairs, the employee must submit the appropriate exemption form to their employer. Until that form is on file, the employer is required to withhold for the state where the work is performed.

Source: Tax Foundation.

Note: Arizona, California, Indiana, Oregon, and Virginia appear on some lists as reciprocity states due to reverse credit arrangements. See the earlier section on the true vs. reverse credit distinction.

The chart is a useful starting point, but several of the agreements listed above carry conditions that most guides fail to mention. This is where employers get tripped up.

What are the conditional rules within reciprocity agreements?

This is where most payroll guides stop short, and where real compliance errors happen. Simply matching a state pair to the chart above does not guarantee reciprocity applies. Several states attach specific conditions that can disqualify an employee.

Kentucky conditions

Kentucky participates in the most reciprocity agreements of any state, but two of them carry conditions.

• Ohio residents working in Kentucky: Ohio residents are not eligible for Kentucky reciprocity if they are shareholder-employees owning 20% or more equity in an S corporation.
• Virginia residents working in Kentucky: Virginia residents are only eligible if they commute daily to their place of employment in Kentucky. Non-commuters who live in Virginia but stay overnight in Kentucky regularly do not qualify.

Minnesota conditions

Minnesota's reciprocity agreements with Michigan and North Dakota include a return frequency condition. Employees who live in Michigan or North Dakota and work in Minnesota must return to their home state at least once per month. An employee who lives in Michigan but rarely travels back does not qualify.

Practical implication for HR and payroll teams

When onboarding a new cross-state employee, do not stop at confirming the state pair. Confirm the employee meets the specific conditions for that pair. Collect the exemption form, and document when conditions change, particularly for employees who relocate, reduce commute frequency, or change their ownership stake in the company.

Even when you have confirmed the state pair and the conditions, one more rule can override everything you just set up, especially if the employee works remotely.

What is the convenience of employer rule, and how does it affect reciprocity?

The convenience of employer rule is one of the most consequential and least understood state tax provisions for companies with remote workers. It directly overrides normal reciprocity logic in the states that have it.

Under this rule, a state taxes a nonresident employee on income attributable to work performed within the state even if the employee physically works from a different state, as long as the remote work is for the employee's own convenience rather than because the employer requires it.

In practical terms: if your company is based in New York and an employee works remotely from New Jersey by choice, New York can still tax that income as if the work were performed in New York.

Which states have the convenience of employer rule?

Five states currently apply this rule:

• Connecticut
• Delaware
• Nebraska
• New York
• Pennsylvania

New York is the most aggressive in its application. Massachusetts adopted a similar rule during COVID and has since allowed it to expire. Arkansas repealed its rule, making the current count five states.

How does this interact with reciprocity?

If an employee lives in New Jersey and works for a New York-based company from their home, New York's convenience rule may still apply New York withholding to all or part of that income. New Jersey and New York do not have a reciprocity agreement, so the employee would file in both states and claim a New Jersey credit for New York taxes paid.

Even in state pairs with a genuine reciprocity agreement, the convenience rule can complicate things. Pennsylvania has both a reciprocity agreement with New Jersey and a convenience rule. If a Pennsylvania employer sends a New Jersey resident home to work, the question of whether that is employer-mandated or employee-convenient affects which state gets the income.

What employers should do

• Document in writing when remote work is employer-mandated, not employee-initiated.
• Consult a US state tax attorney for employees who live in a different state but work for a convenience rule state employer.
• Do not assume reciprocity agreements fully resolve withholding questions for employees working remotely from these states.

How is state tax withheld in states without reciprocity agreements?

In the 34 states that do not have reciprocity agreements, and for any state pair where no agreement exists, the withholding rules revert to the default:

• The employer withholds income tax for the state where the employee performs their work.
• The employee also owes income tax as a resident of their home state.
• The employee files a nonresident return in the work state and a resident return in the home state.
• The home state allows a credit for taxes paid to the work state, up to the home state's rate on that income.

This credit system prevents literal double taxation. However, it does not eliminate the compliance burden. The employee still files two returns. If the work state has a higher tax rate than the home state, the employee effectively pays the higher of the two rates.

Major states with no reciprocity agreements include New York, California, Massachusetts, North Carolina, Georgia, and Illinois (except for the states it does have agreements with).

For traveling employees, even a day or two in one of these states can create a withholding obligation, which is where de minimis thresholds become important.

What are de minimis thresholds for nonresident income tax withholding?

De minimis thresholds define how many days an employee can work in a state before the employer owes withholding there. This matters for employees who travel for work, attend conferences, or make occasional visits to a state outside their normal work location.

Many states have no de minimis threshold at all. If an employee works one day in California, California technically has a withholding obligation from that day. California, Massachusetts, Pennsylvania, and Kentucky are among the states that require withholding from day one.

Recent changes to watch

Alabama (October 2025): Alabama introduced a new 30-day safe harbor. This has a mutuality requirement, meaning it applies only if the employee's home state offers a reciprocal threshold.

Louisiana (January 2026): Louisiana upgraded its threshold without a mutuality requirement.

For employees with fixed work locations in a single state, de minimis thresholds are not relevant. For employees who travel, attend industry events, or visit client sites in other states, each visit can create a withholding obligation in the visited state.

Which states have no income tax?

If an employee works in a state with no state income tax, there is no withholding obligation in that work state. The employee still pays income tax in their state of residence.

The nine states with no state income tax on wages are:

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

New Hampshire taxes interest and dividend income but not employment wages. Washington taxes capital gains for high-income individuals but not employment wages.

These rules were designed for physical commuters, not distributed teams, which is why remote work has been stress-testing the system for the last few years.

Do state reciprocity agreements apply to remote workers?

Sometimes, but not automatically, and several variables can change the outcome.

Reciprocity agreements were historically designed for physical commuters. Remote work complicates this because the employee's work location and their employer's location may be entirely different states.

• When reciprocity can apply to remote workers: If the employee's home state and the state where their employer is located have a true reciprocity agreement, the employee may be able to claim exemption from the employer's state taxes by submitting the applicable exemption form.
• When reciprocity does not apply to remote workers: The state pair does not have a reciprocity agreement; the convenience of employer rule applies in the employer's state; or the employee works some days in the employer's office state and some remotely, creating a mixed work location situation.
• The form requirement always applies: Even when reciprocity applies, the employee must submit the appropriate exemption form before the employer can switch withholding to the home state.

Remote work also means employees are more likely to change states mid-year, which introduces its own set of payroll considerations.

What happens when an employee moves states mid-year?

Employee relocations during the year create a withholding situation that trips up many payroll teams.

When an employee moves from one state to another mid-year, the withholding obligation changes from the date of the move. For the prior part of the year, withholding remains as configured before the move. The employee will file a part-year resident return in their old state and a part-year resident return in their new state.

If the employee's new location changes whether reciprocity applies, that also takes effect from the move date. A new exemption form should be collected immediately.

Key items for payroll teams when an employee relocates

This includes:

• Update the employee's state of residence in the payroll system immediately.
• Collect a new state withholding form for the new state of residence.
• If the state pair has changed, collect or revoke the reciprocity exemption form accordingly.
• Document the effective date of the change.
• If the employee is moving to a no-income-tax state, confirm whether any work-state withholding still applies.

With all the rules and edge cases in place, here is the practical checklist every employer should follow when a reciprocity situation comes up.

What should employers do when reciprocity applies? A step-by-step checklist

This is the short list we give to HR and payroll leads when a cross-state employee joins. Follow each step in order, and most compliance problems disappear.

1. Confirm the state pair. Verify that the employee's state of residence and the state where they perform work are on the reciprocity chart and that it is a true agreement, not a reverse credit arrangement.
2. Confirm the employee meets any conditional requirements. Check for per-state conditions, particularly for Kentucky, Minnesota, and Ohio.
3. Collect the exemption form. The employee must submit the work state's exemption or nonresidence form. Until that form is received, the employer must withhold for the work state.
4. Update payroll withholding to the home state. Switch withholding to the employee's state of residence.
5. Confirm the employer is registered in the home state for withholding. The employer must be able to remit withholding to the home state.
6. Set a calendar reminder to review annually. Reciprocity agreements can change. Employees' situations change. Review the setup each year.

Even with a good checklist in place, things go wrong. Here is what happens when they do.

What happens if the employer withholds the wrong state's taxes?

Incorrect state withholding is a common outcome when employees do not submit their exemption forms on time or when payroll configurations are not updated after a relocation.

If the employer withholds the work state's taxes and should have withheld the home state's taxes: The employee will receive a W-2 showing withholding for the work state. They need to file a nonresident return in the work state claiming a full refund (since they are exempt due to reciprocity) and a resident return in their home state, where they may owe taxes because no withholding was remitted. The employee may face underpayment penalties if the home state tax owed is significant and no estimated payments were made.

Employers can reduce this risk by including a reciprocity check in the onboarding workflow for every new hire who lives in a different state than the business location, and by running a periodic audit of employees whose home state and work state differ.

State income tax is only one layer, though. Local and city taxes follow a different logic entirely.

Do reciprocity agreements cover local and city taxes?

Generally, no.

State reciprocity agreements apply to state income taxes. They do not automatically extend to local income taxes, city wage taxes, or municipal taxes. These are governed by separate rules.

For example, Philadelphia, Pennsylvania imposes a city wage tax on both residents and nonresidents who work in the city. Even if a New Jersey employee working in Philadelphia is covered by the Pennsylvania-New Jersey state reciprocity agreement and pays no Pennsylvania state income tax, they still owe the Philadelphia city wage tax on their Philadelphia wages.

Ohio is another notable example. Ohio has a state reciprocity agreement with several states, but many Ohio municipalities impose their own income taxes, and those municipal taxes are separate from the state agreement.

When managing payroll for employees in cities with local income taxes, confirm whether the local jurisdiction has its own reciprocity provisions or nonresident exemptions. Do not assume the state agreement resolves local tax obligations.

For teams that want to understand why this patchwork exists and where it might go, it is worth looking at the legal foundation of reciprocity and how it has evolved.

What is the legal basis for state tax reciprocity?

State tax reciprocity has constitutional underpinnings worth understanding for finance and legal teams.

In 2015, the US Supreme Court decided Comptroller of the Treasury of Maryland v. Brian Wynne. The Court held that it is unconstitutional for two states to impose income taxes on the same income without providing relief, because doing so violates the Commerce Clause by punishing interstate commerce. The ruling affirmed the constitutional basis for the credit system that prevents literal double taxation.

Reciprocity agreements go further than what the Constitution requires. They are voluntary arrangements between states that eliminate not just double taxation but also the administrative burden of filing in two states. States enter them because commuters benefit, employers benefit, and administrative costs to state revenue agencies decrease when they do not have to process nonresident returns from residents of neighboring states.

This also means reciprocity agreements are not guaranteed. They are administrative arrangements that states can modify or withdraw. New Jersey and Pennsylvania nearly ended their agreement in 2017 before New Jersey's legislature reversed course.

The constitutional backdrop explains why the system exists. The practical history explains why it has not expanded in decades.

What is the history of reciprocity agreements, and what does the future look like?

Reciprocity agreements grew steadily through the 1970s and 1980s as interstate commuting became more common. The expansion largely stalled in the early 1990s, and no significant new agreements have been added since.

The rise of remote work following 2020 created renewed pressure on the existing system. Remote workers who live and work in different states face the same complexity that reciprocity was designed to solve, but their situation is more varied and often involves states that are not neighbors and have no existing agreement.

H.R. 5674: the Mobile Workforce State Income Tax Simplification Act

Congress has repeatedly introduced legislation to address this gap at the federal level. The most recent version, H.R. 5674 Mobile Workforce State Income Tax Simplification Act of 2020, would establish a uniform federal threshold of generally 30 days, below which states could not impose income tax withholding on nonresident employees. If enacted, this would create a consistent de minimis rule across all states.

As of 2026, this legislation has not advanced significantly. It has broad support from business groups but faces resistance from states that would lose withholding revenue under the threshold rule.

For now, the patchwork of state-by-state rules remains the operative framework, and employers managing remote teams across multiple states need to navigate it state by state.

While reciprocity is often framed as a tax break for employees, the upside for employers is equally tangible.

How do state tax reciprocity agreements benefit employers?

Reciprocity agreements are often framed as an employee benefit, but employers gain meaningful operational advantages as well. Here is what changes on the employer side when a reciprocity agreement applies.

• Simpler withholding configuration: When reciprocity applies, the employer withholds for one state per employee rather than managing simultaneous obligations to both the work state and the home state.
• Fewer state registrations: Reciprocity can reduce the number of states where an employer needs a withholding account, though the employer still needs to be registered and remitting to the home state.
• Reduced employee frustration: Employees covered by reciprocity agreements have a much simpler tax year. They file one state return and are not surprised by balances due or refund requests, which reduces HR and payroll questions during tax season.
• Broader talent access: Candidates who live near state borders are more willing to accept roles in neighboring states when reciprocity eliminates multi-state filing complexity.

For employers hiring across state lines, understanding which agreements apply is not just a compliance task. It is a meaningful lever for reducing administrative overhead and improving the candidate experience.

Realizing those benefits consistently requires treating reciprocity as an ongoing workflow, not a one-time setup.

What are the best practices for employers managing reciprocal agreements?

Reciprocity agreements reduce complexity, but they do not manage themselves. Employers who treat them as a one-time setup rather than an ongoing process are most likely to encounter compliance gaps. These practices keep your configuration accurate year over year.

• Apply the correct withholding from day one. Include a reciprocity check in your onboarding workflow for every new hire who lives in a different state than your business location.
• Keep exemption forms on file and review them annually. An annual audit of every employee in a cross-state situation ensures your withholding configuration matches the current reality.
• Do not treat all reciprocity references equally. Confirm you are working with a true bilateral or unilateral agreement, not a reverse credit arrangement.
• Track days worked in each state for traveling employees. For employees whose work location is not fixed, day-tracking is necessary to understand whether withholding obligations have been triggered in additional states.
• Register to remit withholding in the home state before switching. When reciprocity applies and the employer switches withholding to the home state, confirm the employer has an active withholding account in the home state.
• Consult a US state tax professional for complex situations. The convenience of employer rule, conditional reciprocity terms, mid-year relocations, and multi-state employees are all situations where professional guidance is worth the cost.

Getting the fundamentals right, a verified agreement, a signed exemption form, and accurate withholding registration, covers the majority of reciprocity situations. For anything outside that standard path, the cost of professional advice is far lower than the cost of a compliance error.

US state compliance is just one piece of a larger picture. Once your team starts hiring internationally, the complexity moves from state-level to country-level, and that is where having the right EOR partner matters most.

How can Wisemonk help you hire compliantly across the US and globally?

State tax reciprocity is one slice of a much broader compliance picture. The moment you hire across US state lines or across country borders, you are dealing with different payroll systems, tax authorities, benefits frameworks, and labor laws simultaneously. Handling it internally is possible. It is rarely efficient.

Wisemonk is an Employer of Record (EOR) that helps global companies hire and pay employees across the US, UK, France, Germany, India, and 150+ other countries. We have been operating since 2020 and currently manage payroll for 2,000+ employees across 300+ client companies, with $20M+ in annual payroll processed.

Here is how our EOR service works in each of the markets employers most commonly ask us about:

• US hiring: We manage state registrations, multi-state withholding, reciprocity setups, state unemployment insurance, workers compensation, and ACA-compliant health benefits. You hire the candidate. We become the legal employer in the state and handle compliance end to end.
• UK hiring: PAYE payroll, National Insurance Contributions, pension auto-enrollment under the Pensions Act, statutory sick pay, holiday pay, and parental leave. We also handle right-to-work checks and IR35 considerations for contractor conversions.
• France hiring: Payroll with all the layers of French social contributions (CSG, CRDS, URSSAF), 13th month pay where applicable, collective bargaining agreement compliance, and mandatory health insurance (mutuelle). French payroll is one of the most complex in Europe, and we run it as a standard service.
• Germany hiring: Payroll with church tax, solidarity surcharge, social security contributions, and compliance with works council requirements. We handle registration with the relevant Krankenkasse and all statutory reporting.
• India hiring: This is our home market, and where we have the deepest expertise. We handle PF, ESI, professional tax, TDS, gratuity, statutory bonus, and full compliance with central and state labor laws. Our India EOR pricing starts at $99 per employee per month, which is significantly below global generalist EOR competitors.

For companies navigating something as specific as US state tax reciprocity, the same logic applies internationally. You can build internal expertise country by country, or you can work with an EOR that already has the legal entities, payroll infrastructure, and compliance processes in place.

If you are hiring across states in the US, expanding into Europe, or building out engineering talent in India, we can help. Get in touch with us to talk through your hiring plan and see how an EOR partnership could simplify compliance for your team.