Learn more about foreign entities
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Learn when to register your business as a foreign entity, what "doing business" means in different states, and the consequences of not registering.

A company that “does business” in another state must register as a foreign entity there. This usually applies when there are significant ties to that state.
A business that expands its operations into a new state might need to register as a foreign business entity. It depends on whether the business’s activities in another state meet that state’s definition of “doing business,” which typically involves having a physical presence or significant economic ties to the state. As technology makes e-commerce and remote work more common, understanding the requirements for qualifying as a foreign business has become extremely important for business owners.
Business owners often wonder where to form their LLC or corporation and whether they can operate across state lines. In most cases, small business owners register their business in the state where they live and plan to operate.
If you want to operate in multiple states, your business must register as a foreign entity in each state where it “does business” — and doing business is defined under each state’s statutes, which means it can vary slightly.
It’s also possible to form a business in one state and operate in another, though requirements vary by state. For tax purposes, if your corporation meets federal requirements, it can elect S-Corp status regardless of the state of incorporation. While some entrepreneurs consider forming in states with favorable tax laws or incentives, the best choice often depends on your business needs and where you plan to conduct most of your activities.
Foreign qualification is the process of determining whether an out-of-state business meets the legal requirements to operate in another state. This usually includes the following criteria:
What counts as “doing business” in a state isn’t always clear. In general, it means having a physical presence or making money there. Sometimes, it’s easier to look at what doesn’t count as doing business to better understand what does.
The following factors often require a business to register as a foreign entity:

States will often consider an out-of-state company to be “doing business” there if it maintains a physical presence in that state. The more significant the presence, the more likely foreign entity registration is required.
Remote work has made this issue more confusing. Generally, a company that has employees in a state is considered to be “doing business” there. However, not every state sees it the same way: some states require more than one employee or even regular in-state operations.
Some states consider employing a resident as “doing business” because it creates an economic connection to the state.
If your business regularly signs contracts in another state, it may be considered “doing business” there. The more those contracts are tied to that state, the more likely you’ll need to register as a foreign entity. But isolated transactions (such as a single, short-term contract) aren’t usually considered doing business in a state.
For example, a business with a contract in a foreign state may be “doing business” if:
A business that has regular, in-person contact with customers, clients, or prospects in a foreign state may be considered to be “doing business” there.
When a company earns a substantial amount of revenue from a foreign state, that may count as “doing business.” This often happens through high sales volume or major contracts.
Some business activities generally do not count as “doing business” for foreign registration purposes.
A business that sells goods online is not automatically “doing business” in every state where customers make purchases. This can be confusing because a state may require an e-commerce business to collect sales tax without requiring foreign registration.
Employing independent contractors in a state does not typically require foreign entity registration. This is because contractors don’t create the same type of economic presence as employees.
Owning property in a foreign state does not automatically mean a business is “doing business” there. On its own, it doesn’t create a strong enough business connection to the state.
A foreign state can impose penalties on a business that should register there but fails to do so. These may include:
Yes. It’s possible to incorporate or organize a business in one state and operate it in another. However, the business must register as a foreign entity in any state where it operates.
Yes. S-Corp status is based on federal tax law. As long as a business entity is properly organized as a corporation under state law and meets the federal requirements, it can elect to be an S-Corp.
This question has no one-size-fits-all answer. Most small business owners form their business in the state where they live and plan to operate. Some may consider states with favorable tax laws or business incentives. Because requirements and circumstances vary, it can be helpful to get personalized guidance.
If you have specific questions about registering your business in another state or want advice tailored to your situation, an attorney can help. Our business formation services support entrepreneurs and business owners through every stage, from starting a new company to expanding across state lines.
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