US Company Formation

Registered Agent and Business Address Basics for a US LLC

Published September 4, 2026 Scriplit

A US LLC needs a registered agent in its formation state. That agent is not the same thing as a virtual mailbox, a coworking street address on your website, or the domain you type into a browser. Mixing those four ideas is how official mail sits unopened, how a processor flags a “fake address,” and how a founder thinks the company vanished because a scan folder was empty.

Scriplit is not a law firm or a CPA firm. This article is general information, not legal advice. Confirm current state registered-agent rules. An address service does not guarantee banking, Stripe, visas, or tax outcomes.

Registered agent: official delivery, not branding

State law requires an agent for service of process: a person or company with a physical street address in that state, available during business hours, who will receive lawsuits, state notices, and certain tax letters that are served on the company. If you do not live in that state, you almost always hire a commercial registered agent.

What the agent should do:

  • Accept service of process and forward it to you quickly, with a record of when it arrived.
  • Receive state annual-report reminders and compliance mail that is sent to the agent of record.
  • Keep their address current with the state when they move. You should get written notice.

What the agent is not required to do: answer your sales phone, host your inventory, look like a headquarters on Google Street View, or sign contracts. Some agents sell extras (mail forwarding beyond statutory mail, a “virtual office”). Those extras are optional products. Read the agreement so you know whether a letter to the agent is scanned, forwarded, or only held for statutory items.

If the agent resigns and you do not appoint a replacement, the state can eventually take action against the company. Treat the annual agent invoice like a utility, not a surprise subscription.

Mailbox and scan services

A virtual mailbox is a commercial mail-receiving service. You get a street address (sometimes a suite number), photos of envelopes, and forwarding. Banks, platforms, and the IRS may or may not accept that address depending on their rules that week. Some want a “physical presence” that a CMRA (commercial mail receiving agency) is not. Others accept it for correspondence but not for formation.

Use a mailbox when you need somewhere for supplier samples, non-statutory bank letters, or a contact address that is not your home. Do not assume it replaces the registered agent. Do not print a mailbox address as the registered office if the state form asked for the agent.

Private mailboxes often require USPS Form 1583. That is a postal rule, not an LLC filing. Complete it if the provider asks; it is identity paperwork, not a tax election.

The address on the website

A footer address is a trust and contact choice. Some businesses list the registered agent. That dumps statutory mail and random sales pitches into the same slot, and it publishes the agent’s street to the world. Other businesses list a mailbox or “remote-first, invoices by email.” Payment processors look for consistency with the application. If the site says New York and the LLC is Wyoming with an agent in Cheyenne, be ready to explain: formation state versus customer-facing contact.

Do not invent a US office you do not have. A photo of a lobby you do not lease is a KYC problem waiting for a reviewer who uses maps.

Phone numbers and WhatsApp are not addresses. Useful for customers; irrelevant to service of process.

How the three should sit together

Use Registered agent Mailbox / scan Website
Lawsuits and state statutory mail Yes, that is the job Only if you also listed it somewhere else by mistake No
Bank KYC “principal place of business” Sometimes accepted, often not “an office” Sometimes; depends on the bank Must match the story you tell the bank
Customer returns and support Poor choice Possible if you staff it Email/chat often better
Annual report address fields Follow the form: agent vs mailing vs principal Only where the form allows Irrelevant

Changing agents and addresses

When you switch agents, file the state’s change-of-agent form (names vary) and wait for confirmation before you cancel the old service. A gap is how a default judgment can be served to nobody who is watching. Update the IRS, banks, and processors if you used the old address on their files. A registered agent change is a compliance event, not only a vendor swap. It belongs on the same mental shelf as annual reports and ongoing filings.

Practical habits

  • Keep a one-page address map: agent, mailbox, IRS mailing, website, warehouse.
  • Give two people access to the scan portal. Founders travel; mail does not wait.
  • Open statutory PDFs the day they arrive. Deadlines inside those letters are real.
  • Never use a café or a friend’s apartment as the registered office unless that person is actually the agent and agrees in writing.

Scriplit formation packages typically include a first-year registered agent as described on US LLC formation. Mailbox products, if you need them, should be chosen for the mail you actually receive. If you are unsure which address to put on a bank form, say so in the formation enquiry rather than guessing a street that looks impressive on Street View. Impressive is not the legal test. Reachable is.