You found the perfect candidate. They have the skills, the experience, and the enthusiasm you need. There is just one catch: they live in a state where your company has never operated.
Before you extend that offer, you need to understand state nexus. This legal concept determines when a state can require your company to register, withhold taxes, and file returns. For payroll purposes, the threshold is surprisingly low: one employee working in a state, even remotely from their home office, can trigger full tax obligations.
Unlike sales tax, which often requires $100,000 or more in revenue before you owe anything, employment tax nexus has no minimum threshold. Hire one remote software engineer in Colorado while your company is based in New York, and you now have payroll obligations in both states.
This guide explains what triggers payroll nexus, how remote work complicates the picture, and what you need to do when hiring creates tax obligations in a new state.
What Is State Nexus for Payroll Purposes?
Nexus is the legal connection between your business and a state that allows that state to impose tax obligations on you. For payroll purposes, nexus is established when an employee performs work in a state, regardless of where your company is headquartered or incorporated.
The key principle is straightforward: withholding obligations attach to the jurisdiction where an employee physically performs their work. If someone is sitting at a desk in Austin writing code for your San Francisco company, Texas has the right to require you to withhold and remit payroll taxes for that employee.
This differs significantly from other types of business taxes:
| Tax Type | Typical Nexus Threshold | Trigger |
|---|---|---|
| Sales Tax | $100,000+ in sales | Economic activity |
| Income/Franchise Tax | Varies by state | Physical presence or factor thresholds |
| Employment/Payroll Tax | $0 | One employee working in state |
The Department of Labor explains that for federal unemployment purposes, employers are liable if they pay wages totaling $1,500 or more in any quarter or have at least one employee during any day of a week in 20 different weeks. Most states use similar or even lower thresholds, with some triggering obligations from the very first dollar of wages paid.
How Remote Work Creates Unexpected Tax Obligations
Remote work has fundamentally changed the nexus landscape. Before the rise of distributed teams, most companies only had employees in states where they maintained physical offices. Now, a 10-person company might have employees scattered across eight different states, each creating separate compliance obligations.
Here is what makes remote employees different from traditional out-of-state business activity:
No minimum threshold exists. Unlike sales tax economic nexus (typically $100,000+ in sales), employment nexus triggers immediately. One part-time employee working from home in a new state creates the same registration requirements as having 100 employees there.
Physical presence of the work matters, not the employee's title or role. It does not matter if the employee never interacts with customers, never visits your headquarters, or works on purely internal projects. The physical location where they perform their job duties determines which state can tax their wages.
Remote work is permanent, not temporary. An employee who occasionally travels to another state for a client meeting triggers different rules than an employee who permanently works from home in that state. Temporary presence thresholds (14 days in some states, 30 days in others) do not apply to permanent remote arrangements.
The obligation falls on the employer. While the employee ultimately owes the taxes, the employer is responsible for registering with state agencies, withholding the correct amounts, and remitting payments on time. Get it wrong, and the state can pursue you for the unpaid taxes plus penalties.
What Obligations Does Payroll Nexus Create?
Once you have nexus in a state through a remote employee, you must handle:
Registration
- Register with the state's department of revenue (income tax withholding)
- Register with the department of labor (unemployment insurance)
- Some states combine these; others require separate applications
→ See our guide on how to register for state payroll taxes
Withholding
- Calculate and withhold state income tax based on wages, filing status, and state rates
- Exception: Nine states have no income tax (AK, FL, NV, NH, SD, TN, TX, WA, WY)
Unemployment Insurance
- Pay state unemployment insurance (SUI) tax on employee wages
- Rates and wage bases vary by state
- New employers receive a standard rate that adjusts based on claims history
Filing
- Submit quarterly wage reports listing each employee's wages
- File quarterly tax returns for withheld taxes
- Meet state-specific deadlines (penalties accumulate quickly for missed filings)
Employment Law Compliance
- Follow state rules on minimum wage, overtime, and paid leave
- Meet pay transparency requirements where applicable
- Maintain workers' compensation coverage
→ For a deeper look at managing employees across multiple states, see our complete multi-state payroll compliance guide.
The Convenience of the Employer Rule
If this were not complicated enough, several states apply a "convenience of the employer" rule that can create additional withholding obligations even when employees work entirely outside the state.
Under this rule, if a nonresident employee works remotely for their own convenience rather than because the employer requires it, the employer's state can still tax those wages. The logic: if the employee could work at the office but chooses to work from home in another state, that choice does not shift the tax obligation away from the employer's location.
States with Convenience of Employer Rules
| State | Rule Type | Key Details |
|---|---|---|
| Alabama | Full | Applies to nonresident remote workers |
| Connecticut | Reciprocal | Only applies to residents of other COE states |
| Delaware | Full | Standard convenience test with limited guidance |
| Nebraska | Modified | Only applies if employee is in-state 7+ days/year |
| New Jersey | Reciprocal | Only applies to residents of other COE states; enacted 2023 |
| New York | Full | Most aggressive enforcement; survived pandemic-era challenges |
| Pennsylvania | Full | Similar to NY; has reciprocity agreement with NJ |
| Oregon | Limited | Affects only nonresident managerial workers |
Source: Mosey
What This Means for Employers
- You may need to withhold for a state where your employee never sets foot. A Connecticut resident working remotely for a New York company may owe New York taxes even though all their work is performed in Connecticut.
- Documentation matters. To avoid the convenience rule, you need to demonstrate that remote work is required by business necessity, not employee preference. This means clear written policies, employment agreements specifying remote work as a condition of employment, and potentially reimbursing home office expenses.
- Your employees may face double taxation. When two states both claim the right to tax the same income, employees get caught in the middle. Some states offer credits to mitigate this, but the administrative burden falls on both you and your employees.
Common Example: The NJ/NY Scenario: If your employee lives in New Jersey but works for your New York-based company, they will file tax returns in both states. If they physically commute to NYC, New York taxes the income earned there, and New Jersey (as their resident state) taxes their worldwide income but provides a credit for taxes paid to New York.
The complexity increases if the employee works remotely from their NJ home. Under New York's convenience rule, NY may still require you to withhold NY taxes, even though the employee never sets foot in New York. NJ also expects taxes since the work is performed there.
The good news: New Jersey provides a credit for taxes paid to New York, preventing true double taxation. NJ also enacted its own convenience rule in 2023 and created a "bounty" - if an employee successfully challenges NY's convenience rule and receives a refund, NJ gives them a 50% credit on what they would then owe. Your employees file both returns, but credits should offset the duplicate tax burden. It creates extra paperwork, but they should not pay 100% to both states.
Common Scenarios That Create Nexus
Understanding when nexus triggers helps you plan hiring decisions and stay ahead of compliance requirements.
Scenario 1: Hiring a remote employee in a new state
You are based in California and hire a software developer who lives and works from their apartment in Texas. Even though Texas has no state income tax, you must register with the Texas Workforce Commission for unemployment insurance, file quarterly wage reports, and comply with Texas employment laws. Your California obligations remain unchanged.
Scenario 2: An existing employee relocates
Your marketing manager has been working at your Boston office for two years. She announces she is moving to Florida and wants to continue her role remotely. You now have nexus in Florida. You need to register as an employer there before her first paycheck from her new location, even though Florida has no income tax. You must handle workers' compensation, unemployment insurance, and compliance with Florida employment laws.
Scenario 3: Hiring in a convenience-rule state
Your company is headquartered in Delaware, and you want to hire a product manager who lives in Pennsylvania. Under Delaware's convenience of the employer rule, you may need to withhold Delaware taxes even though the employee works entirely from Pennsylvania. Pennsylvania also expects withholding for wages earned by its residents. You need to understand both states' rules and potentially withhold for both, with credits applied at tax time.
Scenario 4: Employees who split time between states
Your sales rep lives in New Jersey but comes into your Manhattan office two days per week. You need to allocate their wages between the two states based on days worked in each location. New York's convenience rule may further complicate this, potentially sourcing more days to New York than the employee physically worked there.
How to Determine Your Current Nexus Footprint
Before you can get compliant, you need to know where you have obligations. Start with these questions:
Where do your employees physically work? Not where they live, not where your office is, but where they actually perform their job duties. For remote employees, this is typically their home address.
Do any states have convenience of the employer rules? If your company is headquartered in New York, Delaware, Pennsylvania, Connecticut, Nebraska, New Jersey, Alabama, or Oregon, you may have withholding obligations for employees who work remotely in other states.
Have any employees relocated without telling you? Remote work makes it easy for employees to move without updating their records. An employee who relocated from your office state to another state months ago may have already created nexus you did not know about.
Do you have workers classified as contractors who might be employees? Misclassification does not avoid nexus. If a worker should legally be classified as an employee, you have nexus in their state regardless of how you have been treating them. California alone can levy fines of $5,000 to $25,000 per misclassified worker.
Steps to Take When Hiring Creates New Nexus
When you identify that a hire will create nexus in a new state, take these steps before your first payroll in that state:
1. Register as an employer with the appropriate state agencies. This typically means the department of revenue and department of labor. Processing times vary from a few days to several weeks, so start early. Our guide to registering for state payroll taxes walks through this process in detail.
2. Obtain workers' compensation coverage. Most states require workers' comp coverage before you can legally employ anyone there. Four states (North Dakota, Ohio, Washington, and Wyoming) are monopolistic, meaning you must purchase coverage from the state fund.
3. Review state-specific employment laws. Check minimum wage rates, overtime rules, paid leave requirements, and pay transparency laws. Remote workers in states with pay transparency laws (like California, Colorado, and New York) may trigger posting requirements even if you have just one employee there.
4. Set up your payroll system for the new state. Enter your new account numbers, tax rates, and filing schedules. Configure withholding calculations based on the state's rules and the employee's W-4 equivalent form.
5. Understand reciprocal agreements. Some neighboring states have agreements that simplify withholding. For example, if your employee lives in Pennsylvania but would otherwise have New Jersey withholding obligations, the PA-NJ reciprocity agreement means you only withhold for Pennsylvania.
6. Document remote work arrangements. If you want to avoid convenience-rule complications, document that remote work is a business necessity. Include this in employment agreements and maintain records showing why remote work is required for the role.
How Warp Can Help
Managing payroll nexus across multiple states is one of the most time-consuming parts of building a distributed team. Every new hire in a new state means researching registration requirements, navigating state agency portals, setting up new accounts, and tracking additional filing deadlines.
Warp is the only AI-native HR and payroll platform built for ambitious companies. Instead of clicking through clunky dashboards or .gov websites for taxes, Warp's AI agents open every state tax account, file every payroll form, and resolve every tax notice automatically.
When you add an employee in a new state, Warp registers your company with that state's tax agencies automatically. You never visit a government website, negotiate with tax agencies, or pay accountants $150 per filing. Warp handles tax registrations across all 50 states, files quarterly and annual returns, and resolves 80% of tax notices instantly by dealing directly with the agencies.
Every company also gets a dedicated Account Manager and Benefits Advisor included to guide you through payroll setup, multi-state expansion, and benefits selection. Whether you are hiring your first remote employee or scaling from 10 to 500 team members across the country, Warp keeps you compliant while you focus on building your business.
If you want payroll compliance software that's engineered to disappear, grab a demo of Warp.
Frequently Asked Questions
Does one remote employee really create tax nexus in their state?
Yes. Unlike sales tax, which typically requires $100,000 or more in revenue to trigger nexus, employment tax nexus has no minimum threshold. One employee working in a state, even part-time from a home office, creates full registration, withholding, and filing obligations for your company in that state.
What if my remote employee is in a state with no income tax?
You still have obligations. The nine states with no income tax (Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, Wyoming) still require unemployment insurance registration, quarterly wage reporting, and compliance with employment laws like workers' compensation. You skip income tax withholding, but not everything else.
What is the convenience of the employer rule?
Several states (including New York, Delaware, Pennsylvania, and Connecticut) apply this rule to tax nonresident employees who work remotely for in-state employers. If the remote work is for the employee's convenience rather than business necessity, the employer's state can still require withholding. This can create situations where employees owe taxes to a state where they never physically work.
How do I know if my company has nexus in a state?
You have payroll nexus in every state where an employee physically performs work. For remote employees, this is typically where they live. Also check if your headquarters state has a convenience of the employer rule, which may extend obligations to remote employees in other states. Review your employee addresses and work locations to map your current nexus footprint.
What happens if I do not register in a state where I have nexus?
Failing to register can result in penalties, back taxes, and interest. States can assess you for all taxes that should have been withheld, even if the employee has since left your company. Penalties vary by state but commonly range from $50 to $1,000 per quarter for late or missing filings, plus interest on unpaid taxes.
Can I avoid nexus by hiring workers as contractors instead of employees?
No. If a worker should legally be classified as an employee based on how they work, you have nexus regardless of how you label them. Misclassification can result in back taxes, penalties, and fines. California, for example, can assess $5,000 to $25,000 per misclassified worker. Classification is based on the nature of the work relationship, not your preference.
How far in advance should I register before hiring in a new state?
Plan for registration at least 60 days before your first payroll in a new state. Some states process registrations in a few days; others take several weeks. Starting early gives you time to resolve any application issues and ensures you can legally pay your new employee on schedule.
