Multi-State Withholding Exposure Matrix
A reference framework for mapping employee residence and work states to withholding obligations, nexus triggers, and reciprocity agreement status. State tax law changes frequently — verify current rates and rules with qualified state tax counsel before implementation.
Official sources
Use federal payroll sources alongside current state tax agency guidance for final withholding decisions.
The Two Questions
For every employee who works or lives in more than one state, payroll must answer two questions:
- Which state(s) have withholding jurisdiction? Generally: the state where work is performed + the state of residence (if different)
- Is there a reciprocity agreement? If yes, only one state withholds (typically the residence state)
General Withholding Rules
| Situation | Withholding obligation |
|---|---|
| Employee lives and works in same state | Withhold for that state only |
| Employee lives in State A, works in State B — no reciprocity | Withhold for both State A (residence) and State B (work). Avoid double taxation by applying credit rules per each state's law. |
| Employee lives in State A, works in State B — reciprocity agreement exists | Withhold for State A (residence) only. Employee files exemption certificate with employer. |
| Employee is remote worker, employer in different state | Withhold for employee's home state. Employer may have nexus in employee's state — verify registration requirements. |
| Employee travels to work temporarily in multiple states | Multi-state apportionment based on days worked in each state. Some states have "convenience of employer" rules (see NY). |
An employer has state payroll tax nexus — and must register as an employer, withhold state income tax, and pay state unemployment insurance — when it has sufficient presence in the state.
Common Nexus Triggers
| Trigger | Typical threshold | Payroll action required |
|---|---|---|
| Employee working in the state (any amount) | 1+ days for most states | Register employer; withhold SIT; pay SUI |
| Remote employee residing in the state | Immediate upon hire | Register as employer in employee's home state |
| Physical office, warehouse, or facility | Immediate | Register and withhold |
| Sales employee regularly soliciting in state | Varies — many states: any activity | Consult state tax counsel; may trigger corporate income tax nexus too |
| Temporary project work (construction, consulting) | Varies: typically 14–30 days; some states: 1 day | Day-counting essential; track via time entry |
| Business travel (no regular work location) | Most states: 14–30 days before withholding required | Track days; implement threshold monitoring |
New York "Convenience of Employer" Rule
New York imposes income tax on all wages earned by a NY-based employee working remotely in another state unless the employee works out-of-state due to a "necessity of the employer" (not the convenience of the employee). This means a NY employee working from home in New Jersey is still subject to NY income tax on those wages — the employee may owe both NY and NJ tax with a credit for one or the other depending on each state's rules. Pennsylvania, Delaware, Nebraska, and Arkansas have similar rules.
A reciprocity agreement between two states allows residents of one state who work in the other to pay income tax only to their home state. The employee must submit an exemption certificate to their employer. Agreements can be terminated — Illinois terminated its agreement with Iowa effective 2025 as a notable recent example.
| State | Reciprocal with | Employee must file |
|---|---|---|
| Arizona | California, Indiana, Oregon, Virginia | WEC (AZ Form) |
| DC | All U.S. states (DC residents only owe DC tax) | Form D-4A |
| Illinois | Iowa (terminated ~2025 — verify), Kentucky, Michigan, Wisconsin | IL-W-5-NR |
| Indiana | Kentucky, Michigan, Ohio, Pennsylvania, Wisconsin | WH-47 |
| Iowa | Illinois (check status — termination pending/effective) | 44-016 |
| Kentucky | Illinois, Indiana, Michigan, Ohio, Virginia, West Virginia, Wisconsin | 42A809 |
| Maryland | DC, Pennsylvania, Virginia, West Virginia | MW507 |
| Michigan | Illinois, Indiana, Kentucky, Minnesota, Ohio, Wisconsin | MI-W4 |
| Minnesota | Michigan, North Dakota | MWR |
| Montana | North Dakota | Form MW-4 |
| New Jersey | Pennsylvania | NJ-165 |
| North Dakota | Minnesota, Montana | NDW-R |
| Ohio | Indiana, Kentucky, Michigan, Pennsylvania, West Virginia | IT-4NR |
| Pennsylvania | Indiana, Maryland, New Jersey, Ohio, Virginia, West Virginia | REV-419 |
| Virginia | DC, Kentucky, Maryland, Pennsylvania, West Virginia | VA-4 |
| West Virginia | Kentucky, Maryland, Ohio, Pennsylvania, Virginia | WV/IT-104R |
| Wisconsin | Illinois, Indiana, Kentucky, Michigan | W-220 |
Employees working exclusively in these states have no state income tax withholding obligation. However, SUI still applies, and some of these states have other payroll-related obligations (e.g., Washington's PFML, Nevada's modified business tax).
| State | Creditor garnishment of wages | Key rule |
|---|---|---|
| Texas | PROHIBITED for most creditors | Only child support, student loans, back taxes, and spousal maintenance permitted. Most creditors cannot garnish TX wages. |
| Pennsylvania | PROHIBITED for most creditors | PA prohibits wage garnishment by private creditors. Permitted only for domestic support, state/federal taxes, and student loans. |
| North Carolina | PROHIBITED for most creditors | Only government debts, domestic support, and student loans. No private creditor wage garnishment. |
| South Carolina | PROHIBITED for most creditors | Same as NC — very limited wage garnishment. |
| Florida | Very limited — head of household exemption | Wages of head of household are fully exempt if providing 50%+ of financial support for a dependent. Applies to most earners. |
| California | More restrictive than federal | 25% of disposable earnings OR amount over 40× state minimum wage (whichever is less). CA minimum wage significantly higher than federal. |
| New York | More restrictive than federal | 10% of gross wages OR 25% of disposable earnings (whichever is less); additionally, wages up to 30× state minimum wage are exempt. |
| Illinois | More restrictive than federal | 15% of gross wages, subject to CCPA limits. |
| All other states | Follow federal CCPA or slightly more restrictive | 25% of disposable earnings or 30× federal minimum wage — verify state-specific rules |
| State | Involuntary termination | Voluntary resignation | Penalty for late payment |
|---|---|---|---|
| California | Immediately at time of termination | Next regular payday (or 72 hours if 72+ hours notice given) | Waiting time penalty: 1 day's wages per day late, up to 30 days |
| New York | Next regular payday | Next regular payday | Civil penalty + liquidated damages |
| Texas | Within 6 calendar days of termination date | Next regular payday | Civil penalty + administrative fees |
| Florida | Next regular payday | Next regular payday | No specific statutory penalty |
| Illinois | Next scheduled payday | Next scheduled payday | 2% per month of unpaid wages + attorney fees |
| Massachusetts | Day of termination | Following regular payday | 3× unpaid wages + attorney fees |
| Washington | End of established pay period | End of established pay period | $1,000 penalty or 10% of unpaid wages (greater) |
| Most other states | Next regular payday | Next regular payday | Varies; typically civil penalty |
State UI wage bases vary significantly and are updated annually. The federal FUTA wage base is $7,000 — but most states have higher taxable wage bases. Employers pay SUI on wages up to the state wage base at their experience rate.
| State | 2026 SUI Wage Base (approx.) | Notes |
|---|---|---|
| Alaska | $50,900 | Very high; increases annually |
| California | $7,000 | Ties to federal minimum; SDI wage base much higher |
| Colorado | $23,800+ | Indexed to state average weekly wage |
| Florida | $7,000 | Federal minimum |
| Hawaii | $62,000+ | Among highest nationally |
| Illinois | $13,271 | Indexed; verify annually |
| New York | $12,800+ | Indexed; verify annually |
| Oregon | $54,000+ | High; verify current year |
| Texas | $9,000 | Set by TWC; verify annually |
| Washington | $72,800+ | Highest nationally; indexed to WA average wages |
An increasing number of states require employer and/or employee contributions to state-sponsored Paid Family and Medical Leave (PFML) programs. These are payroll deductions separate from SUI and SDI.
| State | Program | Employee deduction? | Employer contribution? | W-2 Box 14? |
|---|---|---|---|---|
| California | SDI / PFL | Yes | No (employer may opt in) | Yes — CA SDI |
| Colorado | FAMLI | Yes | Yes (50/50 split for employers 10+) | Yes |
| Connecticut | CT PFML | Yes (0.5% of wages) | No | Yes |
| Massachusetts | MA PFML | Yes | Yes (varies by employer size) | Yes |
| New Jersey | FLI / TDI | Yes | Yes (TDI employer contribution) | Yes |
| New York | NY PFL / DBL | Yes | Yes (DBL) | Yes — NY SDI & PFL |
| Oregon | Paid Leave Oregon | Yes | Yes (employers 25+) | Yes |
| Rhode Island | TDI / TCI | Yes | No | Yes |
| Washington | WA PFML + WA Cares (LTC) | Yes — both programs | Yes — both programs | Yes |
| Maryland | MD FAMLI (launching 2026) | Yes | Yes | Yes |
State Tax Data Setup
- Each employee needs a State Tax Data record for every state where income tax must be withheld — both work state and residence state if different
- The Regulatory Region on the employee's Job Data record maps to the applicable tax rules for that work location
- Reciprocity is handled by setting the work-state tax data to reflect exemption from withholding, with the residence state carrying the full withholding obligation
SUI Multi-State Setup
- The SUI State field on the employee's Job Data or tax data record controls which state receives SUI contributions
- For multi-state employees, SUI generally applies to the state of localization (where they primarily work)
- The SUTA rate table must be updated annually before the first payroll of the new year
PFML Deduction Setup
- State PFML programs require separate deduction codes configured with the correct tax class and rate for each state
- W-2 Box 14 codes must be set up per state requirements — each state PFML agency specifies the exact label required
- Employer contribution rates require corresponding general deduction or benefit cost codes mapped to the correct GL accounts