Questions this answers
- Is my registered agent also my mailbox, and can it receive my EIN letter?
- Can I put my U.S. mailbox in every business and bank address field?
- What can I do if the bank, mailbox portal or formation provider rejects my address?
Start with the field being requested
An address is information about a particular role. A mailing address tells someone where correspondence should go. A physical business address describes an actual business location. A personal home address describes where a person lives. A registered office belongs to the company’s state-law registered-agent arrangement. Those answers may legitimately differ.
Write the exact field label beside the facts it asks for before copying an address into a form. Keep the state filing, IRS application, mailbox application and bank application separate. A state accepting a filing does not establish that the same address satisfies the bank’s identification review.
Sources:
irs-ss4-addresses
bank-cip
Registered-agent service does not settle ordinary mail handling
A registered agent’s duties depend on the state and entity type. Do not reduce the role to “lawsuits only,” and do not assume it includes every business letter. For example, Delaware LLC law requires agents to accept service of process and other communications and forward them, and separately addresses annual-tax statements. That is a Delaware rule, not a nationwide mail-service guarantee.
For an EIN letter or other ordinary business correspondence, establish the actual receiving arrangement before using the address. Ask the provider which legal entity operates the location, whether your company name is authorized there, what mail service is included, and whether the arrangement requires Form 1583. A paid mail-receiving service must satisfy the applicable USPS requirements; a registered-agent title does not replace that inquiry.
Sources:
de-registered-agent
usps-cmra
A mailbox authorizes delivery; it does not create an office or home
USPS treats a business that accepts U.S. Mail for others as a business service as a CMRA. DMM 508 covers registration, customer authorization and address format. The provider’s portal cannot waive those postal requirements. Confirm the precise delivery format, including the required PMB or permitted # designation, with the actual operator.
Form 1583 and a mailbox agreement do not, by themselves, establish that you live or work at the mail center. Do not remove the mailbox designation or call the PMB a personal apartment to get past a form. A genuine office or lease arrangement must be described according to its actual use and the recipient’s requirement, not merely its product name.
Sources:
usps-cmra
bank-cip
The IRS separates correspondence from physical location
The current SS-4 instructions use lines 4a–4b for the entity’s mailing address and lines 5a–5b for its physical address when different. Line 5 does not take a P.O. box. The instructions expressly cover foreign addresses; an LLC’s U.S. formation does not turn a rented mailbox into the place where the business operates.
Check the saved SS-4 and the actual mail arrangement before assuming an EIN letter will arrive. If an address or location changes, the IRS identifies Form 8822-B as the update route. Replacing a mailbox contract does not automatically update the IRS, your state record or your bank.
Sources:
irs-ss4-addresses
irs-ss4-current
A bank asks a different question from USPS
Under 31 CFR 1020.220, a bank’s customer identification program must collect a principal place of business, local office or other physical location for a non-individual customer. The rule has a separate address provision for individuals. A bank may therefore ask about both the company and the people connected with it; read each request in context.
These are minimum federal identification requirements within a risk-based program, not a promise that a particular bank will accept your foreign address, mailbox product, documents or account application. Obtain the bank’s current checklist for your company and owner facts before buying another address. A marketplace’s verification rules require their own review too.
Sources:
bank-cip
Fix the failed requirement instead of changing the story
Find out whether the message came from an automated address filter, a support representative, the actual mailbox operator or the bank’s account-review team. Save the wording and ask for the precise field, missing evidence, applicable requirement and reviewing office. An informal warning is useful information, but it is not necessarily a final decision by the approving office.
Correct genuine errors using the recipient’s documented process. Do not invent a lease, claim occupancy you do not have, substitute the mailbox for your home, or buy a notarization to make inaccurate information look official. If the recipient’s product cannot accommodate your truthful facts, the solution may be a different service rather than a different label.
Sources:
usps-cmra
bank-cip
irs-ss4-current
Worked examples
A founder works from an actual office abroad and pays for a U.S. mailbox for company correspondence. The bank asks for the company’s physical business address.
What to do: Keep the mailing address and actual operating location separate. Give the bank the true business-location facts and request its country and document checklist. Use the IRS’s distinct mailing and physical fields according to the current SS-4 instructions.
Why: Receiving a letter in the United States does not establish that the company operates at the mail center. The bank still decides whether its product supports these facts.
Sources:
irs-ss4-addresses
bank-cip
A formation package lists a registered agent, and the owner wants the IRS to mail the EIN letter there. The package does not describe ordinary mail service.
What to do: Before directing correspondence there, confirm the provider’s receiving scope and authorization for the exact company name. If commercial mail service is required, complete the actual CMRA’s onboarding rather than assuming the registered-agent appointment covers it.
Why: The state-law appointment and the ordinary mail-receiving arrangement need separate answers. State-specific communications duties must still be respected.
Sources:
de-registered-agent
usps-cmra
irs-ss4-addresses
A bank portal identifies a purchased “suite” address as a mailbox and stops the application. A seller suggests dropping the PMB number or adding a residence statement.
What to do: Preserve the exact message, ask the bank which physical-location evidence its reviewer needs, and describe the real arrangement accurately. Keep the operator’s required delivery format. Do not sign a residence or occupancy statement that is untrue.
Why: Changing the displayed label does not change how the location is used or satisfy the bank’s review. Notarization is not a substitute for accurate facts.
Sources:
usps-cmra
bank-cip
Do this in order
- List each current requirement: registered-agent appointment, company filing address, company mail, IRS correspondence, company physical location and owner identification. Keep the requesting organization and exact field label beside each one.
- Compare the provider’s written agreement and your saved applications. Mark which service is actually included and which was only advertised or assumed.
- For ordinary mail, identify the actual operator, the company name authorized to receive mail, the required delivery format and the Form 1583 requirements before directing important correspondence there.
- For IRS records, compare the saved mailing and physical addresses with the current SS-4 instructions. Use the IRS’s published update route for changes rather than assuming a provider updates it.
- For banking, obtain the current checklist for the company and owner. Ask which address is being verified and what genuine evidence is required for your actual location and business activity.
- Prepare a private folder of the relevant agreement, application, written requirement and any refusal. Send only the requested evidence through the recipient’s secure channel.
- If your facts do not meet a service’s published eligibility, stop before paying for extra stamps, new address products or repeated notarizations. Choose a compatible service or obtain advice for the actual unresolved legal or tax issue.
If you are stuck or something was refused
- Identify the failed layer and the office with authority to decide it. A portal error, a notary’s warning and a bank’s final decision are different records.
- Ask for the exact failed field or document, the stated reason, the written rule or product policy, and the available review or escalation process. Keep the response with the application.
- Fix a typo or mismatch with truthful evidence. For state filing errors, use that state’s official correction instructions or legal help; this guide does not supply a nationwide filing fix.
- For a CMRA authorization problem, work with the actual operator on its Form 1583 and record process. Do not edit a completed notarized record yourself.
- For IRS address or location changes, review Form 8822-B and its instructions. Update other organizations separately through their own processes.
- If no compatible service is available, consider whether to postpone the application. Do not create fictitious residence, office occupancy or documents to obtain approval.
When help is useful
You can do the comparison and collect the requirements yourself without calling or buying a notary service. The mailbox operator handles mail authorization; the bank handles its account decision; the state handles its filing rules; the IRS handles its records. Use a lawyer or tax professional for disputed legal rights, filing consequences or tax advice. Notary Geek can help when an identified document actually needs a notarial act, document authentication or shipping, but cannot make an unsuitable address acceptable to another organization.
Related guidance
Official sources and what they support
-
Delaware LLC Act: registered office and registered agent (state-statute); 6 Del. C. § 18-104(a)(1)–(2), (e)(1)c–d. Checked 2026-10-24.
Source publication date not established.
- Registered-office role is distinct from the company’s business location.
- Delaware LLC agents have service-of-process and other-communications duties, including annual-tax notification; this is not a nationwide summary.
-
USPS Domestic Mail Manual 508: Commercial Mail Receiving Agencies (postal-standard); 508.1.8.1; 1.8.2; 1.8.3a, e–i; 1.8.4e. Checked 2026-10-24.
Source publication date not established.
- Business mail receipt for others triggers CMRA analysis.
- CMRA registration, current customer authorizations, exact delivery format and record duties are separate from a provider’s sales label.
-
Instructions for Form SS-4, revision December 2025 (agency-instructions); Page 3, lines 3, 4a–4b, 5a–5b and 6 instructions. Checked 2026-10-24.
Source edition or publication date: 2025-12.
- Entity mailing and physical addresses have different fields.
- Foreign address formatting is expressly covered; physical-address line excludes P.O. boxes.
-
IRS: About Form SS-4 (agency-guidance); Opening note and Current revision links. Checked 2026-10-24.
Source publication date not established.
- Form 8822-B is the IRS route for changes in responsible party, address or location.
- Current revision links identify the filed form and instructions; a future draft is not the filed edition.
-
Bank Customer Identification Program requirements (federal-regulation); 31 CFR 1020.220(a)(1), (a)(2)(i)(A)(3), (a)(2)(ii)–(iii). Checked 2026-10-24.
Source publication date not established.
- Minimum identification requirements distinguish individual and entity addresses.
- Banks use risk-based identity verification and procedures for lack of verification; no account approval guarantee follows from a mailbox or formation.
Why we added these answers
Public questions and Greg Lirette's practitioner explanations helped identify these gaps. Reddit is evidence of the question and experience, not legal authority. Examples above are fictional.
- Public discussion: question-and-experience-not-law. Public author u/glirette verified; Greg’s workflow observations identify the recurring questions, not legal authority..
- Public discussion: question-and-experience-not-law. Public u/glirette comment and Greg/Notary Geek signature verified; state-specific assertions require current official verification..
Notary Geek may receive a referral credit if you click and later sign up through these links. A referral link is not an endorsement of the provider's pricing, fees, policies, uptime, security, suitability, address acceptance, or fit for your use case. These links are service categories to review, not legal, tax, banking, residency, mailbox-provider, registered-agent, hosting, cybersecurity, IT, or business-formation advice. Confirm directly with the provider and the party requesting the document before relying on any address, mailbox, hosting, or related service.
