A software engineer in Tampa logs on each morning, attends a few Zoom standups, ships some code, and never sets foot in Manhattan. Her employer is headquartered there. When April rolls around, she gets a New York W-2 with state income tax withheld for every day she worked — even though she spent zero of them in New York. Welcome to the strangest corner of American payroll: the "convenience of the employer" rule.
A handful of states tax remote employees as if they were sitting at a desk in the office, regardless of where the worker physically logs in. The rule predates the pandemic by decades, but the explosion of telework turned a sleepy doctrine into one of the most expensive tax surprises a remote worker — or a multi-state employer — can run into. In May 2025, New York's Tax Appeals Tribunal upheld the rule again in the long-running Zelinsky case, signaling that the convenience rule is here to stay through 2026 and beyond.
If you live in one state and work for an employer headquartered in another, this article walks through the mechanics, the state-by-state landscape, how reciprocity and resident credits do (and do not) offset double tax, and what employers must withhold in 2026.
What the Convenience of the Employer Rule Actually Says
In most states, wages are sourced to the location where the employee physically performs the work. If you live and work in Texas, your income is Texas-source. If you commute into Illinois three days a week, those days are Illinois-source.
The convenience of the employer rule flips that default for telecommuters. If a nonresident employee works remotely "for their own convenience" rather than out of "necessity" for the employer, the days worked at home are still sourced to the employer's state. The employee owes income tax there, and the employer must withhold accordingly.
The original logic was narrow: it stopped New York–based executives from claiming their summer home in Vermont was a "branch office" to dodge New York tax. The modern application is anything but narrow. Post-2020, the same regulation pulls in software engineers, accountants, paralegals, and college professors who simply happen to live somewhere else.
The "necessity" test is brutally hard to satisfy. Under New York's regulation (20 NYCRR 132.18(a)), an employee's home office can only qualify if the work could not be performed at the employer's office — meaning the employer required the remote location for its own business reasons. Convenience to the worker, the worker's family, the commute, or even a fully closed New York office is not enough. A May 2025 Tribunal ruling reaffirmed that even when the employer's office was physically closed during COVID, days worked from home for a Connecticut professor still counted as New York workdays.
Which States Apply It in 2026
Eight states currently enforce some version of the rule, though the strictness varies:
- New York — the most aggressive enforcer. Applies a strict "necessity" test and audits high earners with out-of-state addresses every year.
- Pennsylvania — applies the rule broadly to nonresident telecommuters of Pennsylvania employers.
- Delaware — long-standing convenience rule, especially relevant for finance and credit card workers headquartered in Wilmington.
- Nebraska — applies the rule to nonresidents of Nebraska employers.
- Connecticut — adopted a "reciprocal" version in 2019. It only triggers when the employee lives in another state that itself has a convenience rule (New York, Pennsylvania, Delaware, or Nebraska). Otherwise Connecticut sources to where the work is physically performed.
- Arkansas — applies the rule, though enforcement is less aggressive.
- New Jersey — adopted a reciprocal convenience rule in 2023, mirroring Connecticut's approach.
- Alabama and Oregon — apply narrower versions in specific situations.
If your employer is headquartered in any of these states and you work from home in a state that does not also have the convenience rule, you may be looking at a tax bill in the employer's state for every workday — even the ones you spent in your own kitchen.
The Zelinsky Decision and Why It Matters for 2026
Professor Edward Zelinsky teaches at Cardozo Law School in New York City. He lives in Connecticut. He spent about two days a week working from home before the pandemic, and was forced to work fully remote during COVID closures. He sued New York for a refund of the tax attributable to those home-office days.
He lost the first round in 1999. He lost the second round in May 2025. The Tax Appeals Tribunal held that he had "sufficient minimal contacts" with New York to satisfy due process, because he availed himself of New York's economic market through his New York–based employer. The closure of his employer's physical office during COVID did not matter. The fact that he spent less than 10% of his working days in New York did not matter. The convenience rule applied to every single home workday.
Zelinsky has signaled he will appeal, but for now the message to remote workers is unmistakable: a New York employer plus a home office equals New York tax on 100% of your wages, with extremely narrow exceptions.
How Double Taxation Happens — and How Resident Credits Try to Fix It
Here is the painful part. The worker's resident state also wants to tax that same income, because resident states tax their residents on worldwide income.
The standard fix is the resident credit: your home state lets you claim a credit for income tax actually paid to another state on the same income. In theory, the worker pays only the higher of the two state rates, never both stacked on top of each other.
In practice, three things break the math:
- The credit is capped at the home state's own tax on that income. If New York's rate is 6.85% and your home state's rate is 5%, you get a 5% credit and effectively pay the 1.85% gap to New York. You never get money back from your home state.
- Some home states refuse the credit when the other state's claim is "improper." A few states have historically taken the position that convenience-rule sourcing is not "tax legally owed" to the other state, leaving the worker fully double-taxed. New Jersey's 2023 reform was partly designed to push back on this.
- City tax does not always credit. New York City and Yonkers tax their residents but not nonresidents, so a New York City resident pays New York City tax on top of state tax. A Connecticut resident hit by the convenience rule for state purposes does not also owe New York City tax — but the state-level interaction alone is enough to sting.
If your home state has a reciprocity agreement with the work state, the convenience rule does not save you either. Reciprocity treaties typically tell employers to withhold only for the home state — but reciprocity is a separate agreement between states, and convenience states tend not to participate. New Jersey–Pennsylvania, Illinois–Wisconsin, and the D.C.–Maryland–Virginia pact are real, working reciprocities. New York has none of significance.
Reciprocity Agreements: A Short Map
For workers whose employer is in a state with reciprocity, the picture is much simpler. Reciprocity says: if you live in State A and work in State B, and the two states have an agreement, only State A withholds and taxes you. The employer files a withholding exemption (often a single-page form) with State B's revenue agency.
Common reciprocity pairs that matter in 2026:
- Pennsylvania has reciprocity with Indiana, Maryland, New Jersey, Ohio, Virginia, and West Virginia — but Pennsylvania still applies its convenience rule to workers in states outside those agreements.
- Illinois has reciprocity with Iowa, Kentucky, Michigan, and Wisconsin.
- Virginia has reciprocity with D.C., Kentucky, Maryland, Pennsylvania, and West Virginia.
- New Jersey has reciprocity only with Pennsylvania.
- D.C. has reciprocity with every state for its own residents, since D.C. cannot tax nonresidents.
None of New York, Delaware, Nebraska, Connecticut, or Arkansas has broad reciprocity. A Connecticut resident working remotely for a New York employer files a New York nonresident return, takes the resident credit on the Connecticut return, and pays the higher of the two rates.
What the Employer Has to Do
For the company writing the payroll checks, the rule creates real compliance obligations. In 2026, multi-state employers should be doing the following:
Establish withholding nexus the moment an employee starts working in a new state. A single full-time remote employee in a new state generally creates withholding nexus for that state. The employer must register with the state's department of revenue, file periodic withholding returns, and issue a W-2 reporting that state's wages.
Run the convenience analysis for each remote worker. For New York, Pennsylvania, Delaware, Nebraska, and Arkansas employees of out-of-state employers — or out-of-state employees of in-state employers — the employer must decide whether to source wages to the office state or the home state. The default for a convenience state is to source to the office. Reversing that requires documented evidence of "necessity" — a closed office is not enough; a written job description specifying that the role must be performed from a specific out-of-state location is closer to the line.
Handle dual withholding when in doubt. When the worker's home state and the convenience state both demand withholding, some employers withhold for both and let the employee sort it out via the resident credit at year end. Others withhold only for the convenience state and educate the employee on filing for the credit. The first approach is safer for the employer; the second is friendlier to the worker's cash flow.
Don't forget state unemployment insurance (SUI). SUI is sourced under the federal "localization of work" four-factor test, not the convenience rule. SUI almost always goes to the state where the remote employee physically works, even if income tax goes to the office state. That means the same employee may generate income tax filings in two states and SUI filings in a third. A New York employer with a remote worker in Florida pays Florida SUI (Florida has no income tax, so no income tax withholding) but withholds New York income tax on every workday.
Register as a foreign entity if required. Many states require an out-of-state employer with a resident employee to register with the Secretary of State as a foreign entity before opening payroll accounts. This is a separate step from the revenue department registration.
Document everything. Keep dated work-location logs, employee handbooks describing remote-work policies, and the legal basis for any "necessity" determination. New York auditors routinely request these records three to five years later.
Practical Moves for Workers Caught in the Rule
If you live in one state and work for an employer in a convenience state, a few moves can reduce the damage:
- File a nonresident return in the office state every year, even if your employer's W-2 already withheld there. Skipping the return guarantees you cannot claim the credit at home.
- Claim the resident credit on your home state return. Use the worksheet for "credit for income tax paid to another state." Attach a copy of the nonresident return.
- Track every day worked in and out of the office state. A spreadsheet with date, location, and reason is a defensible record. Some states accept a calendar export from Outlook or Google plus geolocation evidence.
- Negotiate explicit "necessity" language with your employer. If the company hires you for a role that requires you to be physically present in your home state — for a regional client, in a regulatory zone, or because the role replaces a local office — get it in writing. It is the only realistic path to escaping the convenience rule entirely.
- Consider domicile carefully if you move. If you change residence from a high-tax convenience state to a no-income-tax state, the convenience rule still grabs every workday for the former employer. The change pays off only if you also change employers, or if your employer formally restructures the role to be "necessary" out-of-state.
What Could Change
Reform efforts have stalled for years. The federal Multi-State Worker Tax Fairness Act, which would override state convenience rules, has been introduced repeatedly without passing. New Hampshire sued Massachusetts during COVID over a temporary remote-work rule and lost at the Supreme Court when the Court declined to take the case.
The likeliest near-term shift is the U.S. Supreme Court eventually hearing a Zelinsky-style appeal on Commerce Clause grounds. Until then, expect the convenience rule to keep applying — and expect more states to either adopt their own version (to retain revenue from their resident employers) or pass reciprocal "if you tax our residents this way, we will tax yours back" laws, as Connecticut and New Jersey have done.
Keep Your Multi-State Records Clean
If you work remotely across state lines or run a company with employees scattered across multiple states, the audit trail is everything. You need a per-day work-location log, a clean separation of wages by state, and the ability to reconstruct three to five years of payroll detail if a revenue agency asks. Beancount.io provides plain-text accounting with full version control and a transparent audit trail — no proprietary database, no vendor lock-in, every entry inspectable in a text editor. For remote workers tracking days across states, or businesses managing multi-state payroll and tax credits, that transparency turns a stressful audit into a five-minute query. Get started for free and bring the same rigor to your finances that the IRS and state revenue agencies bring to yours.