US payroll for remote and hybrid teams
Reviewed by Mellow Editorial Team, HR & payroll content team
Running payroll for remote and hybrid teams in the US follows the same federal framework as any other employer — withhold the right taxes, file the right forms, hit the right deadlines — but the location of each employee adds a layer of state and local compliance that you have to get right from day one.
The federal baseline applies to every employee
Wherever your employees work, federal payroll obligations are the same.
You withhold federal income tax based on each employee's Form W-4. The progressive rate structure runs from 10% to 37% depending on taxable wages and filing status.
FICA taxes apply on top of that. You withhold 6.2% of each employee's wages for Social Security, up to the annual wage base, and 1.45% for Medicare with no cap. High earners are subject to an additional 0.9% Medicare surcharge on wages above the applicable threshold, which you withhold from the employee but do not match. You do match the base Social Security and Medicare contributions as the employer.
These obligations do not change because someone works from home three days a week or relocated across state lines.
Employee location determines state tax obligations
This is where remote and hybrid arrangements get complicated. The general rule is that employees pay state income tax where they perform the work — not where your company is headquartered.
If you hire a software engineer in Austin and your office is in New York, you have payroll tax obligations in Texas. Texas has no state income tax, so withholding is straightforward. But if that same engineer later moves to Colorado or Georgia, you pick up obligations in the new state.
Some states have no income tax at all — Texas, Florida, and Washington among them. Others have progressive income tax systems with their own forms, rates, and filing schedules. A handful of states, New York among them, apply a "convenience of the employer" rule that can result in an employee owing tax in the state where the company is located even when working remotely, unless the remote arrangement is required by the employer for a genuine business reason. Rules like this can create double-taxation exposure for employees if the resident state does not give a full credit.
The practical takeaway: every time you hire someone in a new state, or an existing employee moves, you need to register with that state's tax agency, set up withholding, and understand any local tax obligations at the city or county level.
Registering and filing across multiple states
Before you can withhold and remit taxes in a new state, you typically need to obtain an Employer Identification Number from the IRS (if you do not already have one), register for a state employer account, and in some cases register separately for unemployment insurance and local jurisdictions.
On the federal side, you file Form 941 quarterly to report wages paid, taxes withheld, and your employer tax contributions. By January 31 each year, you issue a Form W-2 to each employee and submit copies to the Social Security Administration. Contractors who receive $600 or more in a calendar year get a 1099-NEC instead.
Each state you operate in adds its own quarterly or annual filings. Deadlines, deposit schedules, and penalties vary. Tracking these across five or ten states is manageable but requires deliberate systems — a spreadsheet that worked for one state will not scale.
Classifying workers correctly before you start
Classification matters before payroll even begins. An employee triggers all the obligations above. A contractor does not — you pay them gross, they handle their own taxes, and you file a 1099-NEC if the annual threshold is met.
Misclassification is a serious risk. The IRS looks at the degree of behavioral and financial control you have over the worker, and the nature of the relationship. States run their own tests, often stricter than the federal one. California, for instance, uses the ABC test and broadly presumes workers are employees unless proven otherwise.
Remote work can make classification feel informal. A worker operating independently from a home office in another state is still an employee if the underlying relationship meets the criteria. Getting this wrong exposes you to back taxes, penalties, and interest.
Keeping policies consistent across locations
Employment is generally at-will in the US, but state law shapes a great deal beyond that — non-compete enforceability, pay transparency requirements, mandatory leave, and final paycheck timing, among other things. California prohibits most non-compete clauses outright. Several states now require salary ranges in job postings.
For hybrid teams where some employees are in the office and others are remote, consistency in written policy matters. Where you cannot apply a single rule uniformly because state law differs, document the variation clearly and make sure managers understand which rules apply to which employees.
How Mellow runs payroll across six countries covers some of the same multi-jurisdiction logic applied internationally — useful context if your team spans borders as well as state lines.
The state-by-state complexity is real, but it is manageable with accurate records, timely registrations, and a clear picture of where every worker actually performs their job.
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