If you mean the USPS label, the answer comes from a data field called the Residential Delivery Indicator (RDI). RDI marks an address as residential or business, and USPS uses the word business. USPS's RDI page never mentions mailbox addresses. A mailbox address can also carry a second label.
Many guides online call a mailbox address "commercial." In a search we ran on October 24, 2026, we checked the short descriptions of ten results. Seven used the word commercial, and none named the USPS field that records the label.
We read the USPS pages for RDI and for Delivery Point Validation (DPV), the postal rules for private mailboxes, and four address fields that ask about this label. Below is what each source says, and where the label changes what you should write on a form.
What the Residential Delivery Indicator (RDI) is
RDI is a USPS data product. The USPS PostalPro page describes it in two sentences:
"The RDI™ Product allows customers to determine whether an address is classified as residential or business in the USPS® Address Management System (AMS) database. Addresses processed using the RDI data return an indicator denoting ‘Yes’ for Business or ‘No’ for Residential."
So the answer has two values: Yes means business and No means residential. The page doesn't offer a third value.
We counted the words on the RDI page, in the product text only, with menus and footer left out. Residential and business each appear 7 times, and commercial appears 0 times. The only "commercial" on the full page is in a side menu, inside the name of a different USPS service. In RDI data, the opposite of residential is business.
USPS built RDI for parcels. The overview says so directly:
"The RDI™ is a data product that verifies whether a delivery type is classified as residential or business. Designed specifically for shipping parcels, this distinction between delivery types is valuable due to the fact that some shipping companies charge higher fees for residential delivery."
The first benefit on the page's list points the same way: "Reducing residential delivery surcharges by validating delivery type status for the purpose of choosing parcel shipping suppliers." A surcharge is an extra fee on top of the normal price.
How RDI reaches the forms you fill in
The RDI page describes a data file for address software, not a lookup on a USPS website. The page says the product "is designed for use alongside CASS Certified™ ZIP + 4® address matching software" and that "Updates to the product are released monthly." Coding Accuracy Support System (CASS) software is the address-checking software that mailers and many websites run.
USPS also lets licensees pass the results on. The page says "the RDI data can also be redistributed to third parties." In our reading, a checkout page or a sign-up form may get an RDI answer from a software vendor without ever showing you the word RDI.
The data is organized by ZIP+4 codes and delivery points. The licensing section says "The 9-digit hash table consists of ZIP + 4 codes that contain only business deliveries." A second table lists the business delivery points inside ZIP+4 codes that mix business and residential deliveries. The RDI page doesn't say how the data treats a numbered box inside a mail center, so we won't guess.
On the RDI page, we found no mention of mailboxes, virtual addresses or CMRAs.
Residential use and residential classification are different things
The word residential shows up in mailbox rules too, with a different meaning. The Domestic Mail Manual (DMM) is the USPS rulebook for mail. DMM 508.1.8.3a says:
"A separate PS Form 1583 must be completed for each addressee of a Private Mail Box (PMB) for residential or personal use."
In that rule, residential describes how a person uses the box. Someone can rent a private mailbox for personal mail. Nothing on the RDI page ties the classification to how a box is used. When a form says "residential address," the form usually means the place you live. RDI classification and personal use are two separate questions, and neither one makes a mailbox your home.
A mailbox address carries a second label: the CMRA flag
Postal rules give mailbox companies their own name. USPS Publication 28, the addressing standard, says "Private companies offering mailbox rental services to individuals and businesses are considered commercial mail receiving agencies (CMRA)." The DMM defines a CMRA as "a business that, in whole or in part, accepts the delivery of U.S. Mail on behalf of another person or entity as a business service." We explain the rest of a CMRA's duties in what a CMRA is.
The C in CMRA stands for commercial. When someone calls a mailbox address commercial, the writer may mean this CMRA status. Other writers may mean the RDI label. The two are different answers from different USPS products.
The CMRA label lives in DPV. USPS says the DPV product "identifies whether a ZIP + 4® coded address is currently represented in the USPS® delivery file as a known address record." DPV also has a CMRA table. A 2012 USPS notice on the DPV page, titled "DPV® CMRA Table Expansion," says "Effective with the February release of the DPV® monthly data fulfillment, P.O. Box™ (PBSA) records will be added to the CMRA table." We cover how software uses that table in is your mailing address a P.O. box.
Where the residential or business label changes the answer
The label matters only when a field asks for one kind of address. We read four places that ask. The table quotes each one.
| Where you enter the address | What the text asks for | Does a residential address fit? | What the text says about mailboxes |
|---|---|---|---|
| A US bank account for an individual (31 CFR 1020.220) | "a residential or business street address" | Yes, and so does a business address | The rule doesn't mention mailboxes or CMRAs |
| A US bank account for a company (31 CFR 1020.220) | "a principal place of business, local office, or other physical location" | Not named | The rule doesn't mention mailboxes or CMRAs |
| Mercury, company physical address | "A verifiable residential address (if your company doesn’t have an office yet)" | Yes | Refuses a "virtual address" and a "commercial mail receiving agency" |
| TikTok Shop, individual seller | "Residential address inside the United States." | Required | The TikTok pages we read don't mention mailboxes |
| Parcel delivery (USPS RDI page) | Not a form field | Not a form field | "some shipping companies charge higher fees for residential delivery" |
Bank accounts
The federal customer identification rule for banks sets the address a bank collects. For an individual, the rule asks for "a residential or business street address" (31 CFR 1020.220(a)(2)(i)(A)(3)(i)), so either kind meets the rule. For a company, the rule asks for "a principal place of business, local office, or other physical location" (31 CFR 1020.220(a)(2)(i)(A)(3)(iii)). Banks can add their own policies on top. We trace the rule further in opening a business bank account without a physical address.
Mercury
Mercury is a financial technology company that offers business accounts. For the company physical address, its help page lists "A verifiable residential address (if your company doesn’t have an office yet)" as acceptable. The same section says "We don’t accept a P.O. box, virtual address, commercial mail receiving agency, mail center, or registered agent address." For the legal address, the page says "This address must be a physical address in the United States (e.g. the address on your company formation documents, an office location, etc). We can not accept a P.O. box as your legal address." Our field-by-field reading is in can I use a virtual address for Mercury.
TikTok Shop
TikTok's seller requirements ask an individual seller for a "Residential address inside the United States." Sole proprietors and companies give "Your primary business address in the United States," and the primary representative gives a "Residential address." TikTok's seller guide for individuals adds one check: "Residential address must match what is on the proof of address documentation." The guide for individuals lists a utility bill, an insurance policy, a bank statement or a credit card bill as proof. We break down every TikTok field in TikTok Shop business address requirements.
Parcel fees
The RDI page says "some shipping companies charge higher fees for residential delivery." The page doesn't name the companies. We didn't read any carrier's pricing rules for this post.
If a form asks for your residential address, which address do you give?
If a field asks where you live, give the place you live. A mailbox address is built for fields that ask for a mailing address. Fields that ask for a business or physical address vary, and Mercury refuses a virtual address in its company physical address field. A mailbox address isn't your home, whatever label software gives it.
Two fields above show the gap. Mercury lists a residential address as acceptable for the physical address, and the same section refuses a virtual address. TikTok checks the residential address against documents such as a utility bill. TikTok's field wants your real home. Mercury's field wants where your team works, and a home address is acceptable there if the company has no office yet. Mercury refuses a mailbox address there, and TikTok's proof-of-address check points to your home.
Your home address can then end up on business records. If you would rather keep your home off public filings, read can I use my home address as my business address. Field names also differ from form to form. A "mailing address" and a "business address" can ask for different things, as we explain in business mailing address vs business address.
This post explains USPS data products, a federal bank regulation and platform help pages. The post isn't legal or banking advice. Check each institution's current rules for your situation.
How an Auteur address fits a mailing or business field
We sell virtual mailboxes, so this is the seller's view. Auteur is in pre-launch, and your exact street address is assigned the day your city opens. We don't say any bank, platform or carrier will accept our address, and we don't promise how USPS data classifies the address. Each institution may apply its own rules.
The Virtual Business Address receives mail in a business or trade name. Choose it if mail will come to an LLC, a corporation or a DBA (doing business as) name. The Virtual Mailing Address is for personal mail, in individual names only. Choose it only if every piece will come in your own name.
Both plans photograph the envelope of every piece as it arrives, and we open and scan only when you ask, for one flat fee per piece. Henry, our AI assistant, explains each letter you ask us to open. USPS Form 1583 is required before any provider can receive mail for you. Pricing comes by email with the next steps, and our fees and limits are in our fair use policy.
If your mail comes to a business name, get your Virtual Business Address. Ordering is free, there's no card, and nothing is charged today. For mail in your own name only, the Virtual Mailing Address is the plan to choose.
FAQ
Can a virtual mailbox address be used as a residential address?
A mailbox address isn't the place you live. Some fields ask for a residential address and check it against documents. TikTok, for example, says "Residential address must match what is on the proof of address documentation." Mercury accepts a residential address for the company physical address if the company doesn’t have an office yet, and it refuses a virtual address in the same section.
Will a carrier charge residential rates to a mailbox address?
The RDI page doesn't say. The page says only that "some shipping companies charge higher fees for residential delivery." Each carrier sets its own fees, and the RDI page doesn't mention mailbox addresses.
Can I look up whether my address is residential or business?
The RDI page describes a licensed data file for address-matching software, with updates "released monthly." We didn't find a lookup tool for individuals on that page. A mailbox provider or a software vendor with an RDI license may be able to tell you.
Is a CMRA address the same as a commercial address?
The two terms come from different USPS products. Publication 28 calls a mailbox company a CMRA, and DPV keeps a CMRA table. RDI labels addresses as business or residential, and the RDI product text never uses the word commercial.
Bottom line
USPS records the residential label in RDI, where "Yes" means business and "No" means residential. Commercial isn't the USPS word for the other value. A mailbox address can also carry a CMRA flag from a different USPS product, DPV. The USPS pages we read don't say which RDI value a mailbox address gets. The label matters most when a field asks for a residential address. If a field asks where you live, give your home. Use a mailbox address where a field asks for a mailing address, and read the rules for any field that asks for a physical address.
