Tax Implications of a Remote Workforce: Multi-State Payroll, Nexus, and Compliance

Remote work permanently changed the tax landscape for small businesses. Before 2020, most businesses had employees in one or two states and the compliance was straightforward. Now, a 10-person company might have employees in 8 different states, creating filing obligations in each one. Under state tax principles, an employee working from home in State A creates nexus for the employer in State A, even if the employer has no office, warehouse, or other physical presence there. This means the employer must register as an employer in State A, withhold State A income tax from the employee’s wages, pay State A unemployment insurance, obtain State A workers’ compensation coverage, and potentially file a State A corporate/business income tax return. The compliance cost of a single remote employee in a new state can run $500-2,000 per year in registration fees, payroll setup, and additional tax filings, plus the ongoing cost of multi-state payroll processing.

How do you manage multi-state payroll for remote employees?

How do I determine where I owe state income tax?

You owe state income tax in every state where your business has nexus, which can arise from physical presence (an office, employee, or warehouse), economic activity above the state’s threshold, or performing services in the state. Most states use an apportionment formula to divide your total business income among the states where you operate. The majority of states now use single-factor apportionment based on sales (revenue sourced to each state), though some still weight payroll and property. Each state has its own rules, rates, and filing requirements, and some states do not have an income tax at all.

What is the difference between nexus, apportionment, and allocation?

Nexus is the threshold question: does the state have the right to tax your business at all? Once nexus exists, apportionment is the formula that divides your operating income among the states where you do business, typically based on where your customers are located. Allocation is different: it assigns specific non-operating income items (gain on the sale of real property, for example) entirely to one state rather than spreading them. Most ongoing business income is apportioned, while one-time gains are allocated. Understanding the distinction matters because allocated income can create a large, unexpected tax bill in a single state.

Does a sales rep working from Texas create sales tax nexus?

If you sell taxable items, very likely yes. The Texas Comptroller says you’re engaged in business in Texas if you have an employee or representative in Texas to sell, deliver or take orders for taxable items. A remote sales rep like Sales Rep C in the example fits that description, whatever your sales volume into Texas.

Texas also counts a temporary or permanent location and owning or using tangible personal property in the state, including software. Without anyone there, you’d look to the remote seller safe harbor instead: $500,000 of total Texas revenue over the preceding twelve calendar months.

Sales tax nexus and income tax nexus are separate. P.L. 86-272 can shield a seller of tangible goods from state net income tax when the rep only solicits orders that are approved and shipped from outside the state, but it never applies to sales tax.

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.