Key takeaways
- No single US document is "the" proof of business address. Each recipient decides what it accepts, and federal bank rules leave the choice of evidence to the bank.
- Every document proves something narrower than "my business is here": a lease proves a right to use a space, a utility bill proves a service account at an address, a bank statement proves an address on file.
- Reviewers check the same things: a third-party issuer, a name that matches the application, the full street address with any unit number, and a date inside their window.
- Date windows differ even within one provider. Two of Mercury's own help articles give 90 days and 60 days for bills and statements.
- Mercury says it doesn't accept a P.O. box, virtual address, mail center (CMRA) or registered agent address as a company's physical address. Other providers have similar rules.
- A Registate lease and utility bill are documents, not approvals. The bank or platform reviews them and makes its own decision.
On this page (8)
What "proof of address" means depends on who's asking
Your business address starts as a fact about the real world, not a document. The SBA puts it simply: your business location determines the taxes, zoning laws and regulations your business is subject to (source). A proof of address is only evidence of that fact, and each organization that asks for it is trying to answer a slightly different question.
| Who asks | What they want to know | What they collect |
|---|---|---|
| IRS | Where to send tax mail, and where the business physically is | A mailing address and, if different, a street address on Form SS-4, with no P.O. box on the street line (source). No document is attached. |
| Banks | Where the company actually operates | For a company: "a principal place of business, local office, or other physical location" (31 CFR 1020.220). Each bank sets its own verification procedure. |
| Fintechs and payment platforms | Legal address, operating address and where to mail cards | Their own lists of documents and date windows, published in their help centers (Mercury example). |
| USPS, for a mailbox (CMRA) | Who is receiving mail through the agent, and where they live or do business | Form 1583 with a photo ID and a separate address ID for the applicant's home address (source). |
The law asks for a location, not a document
The federal Customer Identification Program rule tells banks to collect, for a company, a principal place of business, local office or other physical location. For proving that the company exists, it gives examples such as certified articles of incorporation or a government-issued business license, and it lets each bank write its own procedures, using documents, non-documentary checks or both (source). That is why two banks can publish two different lists, and why no provider's list is the national standard.
What each document actually proves
Founders often treat proof of address as one box to tick. It helps to read each document the way a reviewer does: what does this piece of paper really show, and what doesn't it show?
| Document | What it shows | What it doesn't show | Common limits |
|---|---|---|---|
| Signed lease | The company has a right to use a specific space for a term | That anyone works there day to day | Must be signed and current; Mercury lists a "valid and signed lease agreement" |
| Utility bill | A service account at that address, in a name, on a date | Who owns or runs the business there | Recency window; some providers restrict which bill types count |
| Bank, card or financial statement | Another financial institution has that address on file | That the address is a physical workplace | Recency window; Mercury won't accept its own statements |
| Tax documents | A tax authority has that address for you | A physical location, if the address is a mailing address | Mercury accepts tax documents from the most recent year |
| Formation documents | The address the company registered with its state | Where it operates; this is often the registered agent's address | Useful for the legal address, rarely for the operating address |
| Government photo ID | A person's residential address | Anything about the company | Used when a provider accepts the owner's address, e.g. a home office |
| USPS Form 1583 | A mail agent may receive mail for you | That your business operates at that address | Proves a mailbox relationship, not a place of business |
Mailing address and physical address are different facts
The IRS makes this distinction on Form SS-4. Lines 4a and 4b ask for the mailing address for the entity's correspondence, which the IRS says will generally be used on all tax returns. Lines 5a and 5b ask for the physical address, only if it differs, and say not to enter a P.O. box there (source). So an IRS letter proves where the IRS mails you. If that is a mailbox, the letter doesn't make it a place of business.
The same split shows up with platforms. Stripe asks for the physical location where the majority of your business activity is carried out (source), and the address documents it accepts must show the business name or the account owner's name (source). Our Stripe requirements page walks through its list.
The details a reviewer checks on every document
Whatever the document, the review is mostly a comparison: does this paper say the same thing as your application? Mercury's wording is a good summary of what most providers look for. Documents "must clearly show the company name, or the beneficial owner's name, along with the full physical address (including unit numbers if applicable)" (source).
- The issuer. Proof comes from someone else: a landlord, a utility, a bank, a government agency. A document you produced yourself shows only what you claim.
- The name. The legal company name exactly as on your formation document, or the owner's name where the provider allows it. A trade name or a spelling difference can lead to a request for another document.
- The full address. Street, suite or unit, city, state and ZIP, written the same way as on the application. A missing suite number can read as a different address.
- The date. Statements and bills have to be recent, and "recent" is defined by the recipient. A lease has to be current for the period you're applying in.
Recency windows vary, even at one provider
Mercury's general address article accepts a utility bill or financial statement from the last 90 days (source). Its Mercury for Accountants article lists a utility bill, account statement or subscription invoice from the last 60 days (source). Both are Mercury's own pages, checked in September 2026. The practical lesson: read the page for the exact product you're applying for, and when in doubt, submit the newest document you have.
Why banks often refuse virtual and mailbox addresses
A commercial mail receiving agency (CMRA) is a business that receives mail for customers, usually at a private mailbox (PMB) number. USPS requires each customer to file Form 1583, with a government photo ID and a second ID that confirms the applicant's own home or business address (source). That form proves the mailbox relationship. It doesn't claim that your business operates at the CMRA's location, and USPS says the application may be verified to confirm that the applicant resides or conducts business at the home or business address listed on the form.
Providers that verify a physical location say plainly that a mail address isn't one. Mercury's own articles are a clear example:
- Physical address: "We don't accept a P.O. box, virtual address, commercial mail receiving agency, mail center, or registered agent address" (source).
- Legal address: it "cannot be a P.O. Box, PMB, or virtual office", and the physical address "cannot be a registered agent, P.O. Box, PMB or virtual office" (source).
- If a valid legal address isn't on file, Mercury says account access may be temporarily restricted and that it can't make exceptions (source).
The two Mercury articles differ slightly on what the legal address may be. Our Mercury requirements page sets them side by side.
A registered agent address is not an operating address either
Your registered agent receives legal and state notices for the company, and its address often appears on your formation documents. That makes it a fine legal or registered address and a poor physical one: Mercury lists it among the addresses it won't take as the physical address (source). See registered agent vs business address for how the two roles differ.
What a Registate address document can and can't do
Registate's proof of address service provides a signed lease for space in a commercial building in Delaware and a utility bill in your company's name. Those are the document types providers most often list, so they give you something concrete to submit when a provider asks.
What they support
- A third-party document that names your company and a full US street address
- A consistent address to use across your application, your records and your other documents
- A lease and a bill together, for providers that ask for more than one document
Where the limits are
- No document guarantees acceptance. Every bank, payment platform and marketplace runs its own review and makes its own decision.
- Rules about operations still apply. The lease is meant for compliance and proof of address, not daily occupancy. A provider that asks where you and your team work day to day may treat it differently from an office you staff.
- Some providers restrict document types. A provider may accept only certain kinds of utility bill, or ask for a statement from another bank. Check its list before you order anything.
- Accuracy is on you. Tell each provider where your business really operates, including an address outside the US if that is where you work. Mercury, for example, accepts verifiable international addresses for overseas customers (source).
For how specific providers treat addresses, see US banking and payments and why US banks say no.
Before you upload an address document
- 1Find the provider's own listOpen the help page for the exact account or product you're applying for. Note which documents it accepts, which address it wants (legal, physical or mailing), and its date window.
- 2Decide which address you're provingA legal address, an operating address and a mailing address can be three different places. Use the right one in the right field.
- 3Match the name character for characterUse the legal name from your formation document, including the LLC or Inc. suffix, or the owner's name only where the provider allows it.
- 4Check the address line and the dateSuite or unit number included, same format as the application, and dated inside the window. Upload every page the provider asks for.
- 5Keep your records consistentIf your business mailing address or location changes, the IRS asks you to report it on Form 8822-B (source). Update your bank and platforms at the same time so the documents keep matching.
Still choosing an address setup? Virtual mailbox vs virtual office explains what each one gives you, and virtual office covers the location options.
Sources
We checked every rule above on the official page in September 2026. Providers edit their help pages without notice, so confirm before you apply.
- IRS, Instructions for Form SS-4 (lines 4a to 6)
- IRS, About Form 8822-B, Change of Address or Responsible Party, Business
- USPS, PS Form 1583, Application for Delivery of Mail Through Agent (June 2024)
- 31 CFR 1020.220, Customer identification programs for banks
- U.S. Small Business Administration, Launch your business: pick your business location
- Mercury, Company address requirements
- Mercury, Mercury for Accountants: Address Requirements
- Stripe, Verifying your business address
Frequently asked questions
What documents can prove a business address?
The ones providers list most often are a signed lease, a recent utility bill and a recent bank or credit card statement in the company's name. Some also accept tax documents, subscription invoices or, for a home office, the owner's government ID. Each provider publishes its own list.
Is there one official proof of business address in the US?
No. Federal rules require banks to collect a company's principal place of business or other physical location, but each bank decides how to verify it. That is why lists and date windows differ between providers.
How recent does a proof of address document need to be?
It depends on the recipient. Mercury's general address article says 90 days for utility bills and statements, while its Mercury for Accountants article says 60 days. Check the page for the exact product you're applying for and use the newest document you have.
Can I use my virtual mailbox address as proof of address for a bank?
Usually not as the physical address. Mercury, for example, says it doesn't accept a P.O. box, virtual address, commercial mail receiving agency, mail center or registered agent address as a company's physical address. A mailbox works as a mailing address.
Is USPS Form 1583 a proof of business address?
No. Form 1583 authorizes a commercial mail receiving agency to receive mail for you. It proves the mailbox arrangement, not that your business operates at that address.
Can my registered agent's address be my business address?
It can appear as the registered or legal address on your formation documents, but many providers won't accept it as the operating address. Mercury lists registered agent addresses among the physical addresses it doesn't accept.
Whose name has to be on the document?
Usually the company's legal name, matching your formation document. Some providers, including Mercury and Stripe, also accept the beneficial owner's or account owner's name. The address must match the application in full, including any suite or unit number.
Does a Registate lease guarantee my bank or Stripe account will be approved?
No. Registate provides a signed lease and a utility bill in your company's name. Every bank, payment platform and marketplace reviews documents under its own rules and makes its own decision.
Does an IRS letter prove my business address?
It proves where the IRS mails you. On Form SS-4 the mailing address and the physical street address are separate lines, and the street line can't be a P.O. box. If your IRS mailing address is a mailbox, the letter doesn't show a place of business.