The reality: With remote work now standard across many industries, even small businesses routinely have employees in multiple states. Each state has its own income tax rules, unemployment tax rates, workers' comp requirements, and labor laws. Getting multi-state payroll wrong means double taxation, penalties, and angry employees.
Whether you're a construction company with crews in Georgia and Florida, a professional services firm with remote employees across the Southeast, or a growing business expanding into Indiana — this guide covers everything you need to handle multi-state payroll correctly.
Step 1: Determine Where Each Employee "Works"
Before you can process multi-state payroll, you need to determine each employee's work state — which isn't always obvious.
The general rule
Income tax is withheld based on where the work is physically performed, not where the employee lives or where the company is headquartered. If an employee lives in Georgia but drives to Florida for work, their wages earned in Florida are subject to Florida's rules (which means no state income tax — a win).
Remote workers
For fully remote employees, the work state is typically the state where they sit — their home office state. Some states have a "convenience of the employer" rule that can complicate this, but Georgia, Florida, and Indiana do not.
Traveling workers
Employees who work in multiple states during the year may need to have income allocated across states based on days worked in each location. This is common in construction, sales, and consulting.
Step 2: Understand State Income Tax Withholding
Here's how income tax works in BlueWave HR's three service states:
| State | Income Tax Rate (2026) | State W-4 | Key Notes |
|---|---|---|---|
| Georgia | 5.39% flat rate | Form G-4 | Transitioning to flat tax. Standard deduction: $12,000 (single), $24,000 (married). |
| Florida | 0% (no state income tax) | None needed | One of 9 states with no personal income tax. No withholding required. |
| Indiana | 3.05% state + county tax | Form WH-4 | 92 counties, each with its own tax rate (0.5%–3.38%). Must withhold both state and county. |
⚠️ Indiana county taxes are tricky. You must withhold county tax based on the county where the employee lives (not works), but only if that county imposes a tax. There are 92 counties with different rates. If you're processing Indiana payroll manually, this is one of the easiest mistakes to make.
Step 3: Check for Reciprocity Agreements
A reciprocity agreement between two states means an employee only pays income tax in one state, even if they work in the other. This simplifies withholding significantly.
| State | Reciprocity With |
|---|---|
| Georgia | None |
| Florida | N/A (no income tax) |
| Indiana | Kentucky, Michigan, Ohio, Pennsylvania, Wisconsin |
If an employee lives in Kentucky and works in Indiana, thanks to reciprocity, you only withhold Kentucky income tax. The employee files Form WH-47 (Indiana) to claim the exemption.
Step 4: Register for State Unemployment (SUI) in Each State
This is the step many employers miss. You must register for State Unemployment Insurance (SUI) in every state where you have employees — even if it's just one person.
| State | SUI Wage Base (2026) | New Employer Rate | Rate Range |
|---|---|---|---|
| Georgia | $9,500 | 2.7% | 0.04% – 8.1% |
| Florida | $7,000 | 2.7% | 0.1% – 5.4% |
| Indiana | $9,500 | 2.5% | 0.5% – 7.4% |
Step 5: Workers' Compensation Across State Lines
Workers' comp is regulated at the state level, and the requirements differ significantly:
- Georgia: Required for employers with 3 or more employees
- Florida: Required for employers with 4 or more employees (construction: 1 or more)
- Indiana: Required for all employers (with very few exceptions)
If you have employees in multiple states, you need workers' comp coverage that satisfies each state's requirements. Most policies can be endorsed to cover multiple states — but you must specifically list each state on your policy. An unlisted state means uncovered employees.
Step 6: Comply with Each State's Labor Laws
Beyond taxes, each state has its own labor regulations. For Georgia, Florida, and Indiana:
| Requirement | Georgia | Florida | Indiana |
|---|---|---|---|
| Minimum wage (2026) | $7.25 (federal) | $14.00 → $15.00 (Sept 30) | $7.25 (federal) |
| Pay frequency | Semimonthly | No requirement | Biweekly or semimonthly |
| Final paycheck | Next regular payday | Next regular payday | Next regular payday |
| New hire reporting | Within 10 days | Within 20 days | Within 20 days |
Common Multi-State Payroll Mistakes
- Only withholding in the company's home state — every state where work is performed may require withholding
- Not registering for SUI in a new state when you hire a remote worker there
- Using the wrong state's wage for overtime — must use the applicable state's minimum wage
- Missing workers' comp coverage — unlisted states mean uncovered employees
- Not updating payroll when employees relocate — remote workers who move states change your tax obligations
FAQ
Which state do I withhold income taxes for — the state where the employee lives or works?
Generally, the state where the work is performed. If an employee lives in Georgia and works in Florida, no state income tax is withheld (Florida has none). If they live in Florida and work in Georgia, you withhold Georgia income tax at 5.39%.
What is a state reciprocity agreement?
A reciprocity agreement allows employees to only pay income tax in their home state even if they work in another state. Indiana has reciprocity with Kentucky, Michigan, Ohio, Pennsylvania, and Wisconsin. Georgia and Florida do not have reciprocity agreements.
Do I need to register for unemployment insurance in every state where I have employees?
Yes. You must register for SUI in every state where employees perform work, file quarterly returns, and pay the applicable tax rate for each state.
Multi-State Payroll Made Simple
BlueWave HR + iSolved handles multi-state tax withholding, SUI registration, workers' comp compliance, and state-specific labor law requirements automatically. We serve businesses across Georgia, Florida, and Indiana — and everywhere else your employees work.
Get Multi-State Payroll Help