Business addresses
One company can have several valid addresses.
There is no single “US business address” that automatically works everywhere. A company may list a registered office, principal office, and mailing address, each for a different purpose.
one company, three addressesDo you need a US office?
Not every company needs to operate from a US office. A non-resident founder may run the business from another country, while the company keeps the in-state registered-agent address required for its entity filing. The form asking for an address determines which fact belongs in that field.
The IRS makes this distinction explicit in its Form SS-4 instructions: the EIN application has separate mailing and physical-address fields and tells applicants how to enter an address outside the United States. That does not make a foreign operating address an in-state registered office, and it does not guarantee that a bank or another provider will accept it.
State forms can separate the same facts. Wyoming's official LLC formation form asks independently for the registered agent's physical address, the company mailing address, and the principal office.
Three addresses, three jobs.
- 01
Registered agent address
A physical street address in the formation state where the agent accepts service of process and official notices. It is a legal requirement, not a mailing convenience. Read what a registered agent is for the details.
- 02
Principal office / business address
Where the business is actually located or primarily operates. This is the address states may record as the company's location and that some institutions ask for to verify where the business runs.
- 03
Mailing address
Where the company wants its correspondence delivered. This may be a PO box, a commercial mailing service, or a virtual mailbox. It is about receiving mail, not about being a legal point of contact.
Physical vs. mailing vs. virtual.
A PO box is a locked mailbox inside a Post Office — the USPS explains PO boxes as a place to keep mail private and secure, not a physical location for the business. A virtual mailbox is a commercial service that receives your mail at a real street address and scans or forwards it.
These are mailing conveniences. They are useful for a mailing address, but they do not by themselves become the company's physical location, and they do not replace the registered agent — see virtual address vs. registered agent.
What states and banks may ask for.
Different parties ask for different things. A state filing may ask for a principal office, a registered agent, or a mailing address — sometimes all three. Banks and payment providers set their own policies about which address they accept for a business account, and those policies vary.
Do not assume one address satisfies everyone. Some institutions require a physical street address where the business operates and will not accept a PO box or a virtual mailbox. The USPS notes that its Street Addressing service for PO boxes, where available, is a mail-delivery feature — it lets a PO box also receive private-carrier packages, but it is not a substitute for a physical address where one is actually required.
The reliable move is to check the specific requirement at the specific agency or institution before you file or apply.
How to choose yours.
- 01
Start from where the business actually operates
The principal office is a fact, not a preference. List a real location for the business, and keep the other addresses separate rather than forcing them all to be the same place.
- 02
Match each address to the form that asks for it
Give the state the registered agent address it requires, the mailing address where you actually want mail, and the physical address where the business operates — not one address forced into every box.
- 03
Verify against the current source before relying on it
Confirm the requirement at the agency or institution itself. What one state or bank accepts is not a promise that another will. When it changes, update it as part of your good-standing routine.
Form with a clean, correct address record.
Corppy keeps the required formation details in one straightforward flow.
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