Working in another state: what it creates

A good customer asks you to do a job an hour away. The only thing different about it is that the hour crosses a state line. You take the work, it goes well, and nobody thinks about it again until a notice arrives eighteen months later from a state tax department you have never dealt with.

Crossing a state line with a crew can create obligations in that state — registration, withholding, insurance, licensing — and the rules differ in every one of them. This is what to check before the truck goes, and what the books need to record so the answers exist later.

Why it catches contractors specifically

Most businesses sell across state lines without ever being physically present in one. Contractors are the opposite: the work is physical presence. Your people, your trucks and your tools are in that state for days or weeks, which is the kind of presence that creates obligations almost everywhere.

The thresholds are different everywhere, too. Some states care about a single day of work; some use a number of days, or an amount of payroll, or an amount of revenue. There is no general rule to rely on, which is why the only safe approach is to check each state before you work there.

The things to check, in order

1. Contractor licensing. Many states and plenty of cities require a license or registration to perform the work at all, sometimes with reciprocity for neighboring states and sometimes not. Doing unlicensed work can make a contract unenforceable — meaning you may be unable to sue to get paid.

2. Business registration. Operating in a state usually means registering to do business there, which brings annual filings and often a registered agent.

3. Payroll withholding. Employees working in another state frequently create an obligation to withhold that state’s income tax on the wages earned there, and to register as an employer first. Some neighboring states have reciprocity agreements that change this.

4. Unemployment insurance. Which state an employee’s unemployment tax belongs to follows its own set of rules, and it is not always where they live or where your office is.

5. Workers’ compensation. Your policy may not extend to work in another state unless it is listed. Check with your carrier before the job — a claim in an uncovered state is the kind of problem that ends businesses.

6. Sales and use tax. Which materials are taxed, and whether you are treated as a retailer or as the consumer of your own materials, varies. See sales tax for contractors.

7. Local taxes. Some cities and counties have their own registration, licensing or payroll taxes on top of the state’s.

What the books need to record

Most of the pain here is not the obligation — it is reconstructing, a year later, what you actually did. From the first out-of-state job, the books should carry:

• Which state each job was in, as a field on the job rather than a memory
• Payroll split by work state, not just by employee — which days, and how much, were earned where
• Revenue by state, because some obligations key off it
• Materials purchased and where they were delivered, for sales and use tax
• Days on site per employee, where a state counts days

None of that is difficult when it is recorded as it happens. All of it is close to impossible to rebuild accurately afterwards, which is why a notice about one job often turns into an expensive guess.

Before the next out-of-state job

A short checklist that costs an hour and prevents most of the trouble:

1. Ask your CPA what the state requires for a job of this size and duration
2. Ask your insurance agent to confirm workers’ compensation and liability cover the state
3. Check the state licensing board for your trade
4. Ask your payroll provider to set up the state before the first payroll, not after
5. Record the state on the job in your books from day one

If you have already been working out of state

Do not let it compound quietly. The exposure grows with every period that passes, and states generally treat businesses that come forward differently from businesses they find.

Tell your CPA what you did and where. Many states have voluntary disclosure arrangements for exactly this situation, and the position is almost always better than waiting for the notice. Bring the records above — which is a much easier conversation if the books separated the states as the work happened.

Related

• Twelve questions to ask your CPA before December 31
• Prevailing wage and certified payroll
• Surviving your workers comp audit

General information, not tax or legal advice. Registration, withholding, licensing and insurance requirements differ in every state — confirm each one with your CPA, your agent and the state’s own board.