Key takeaways
- The USPS Web Tools API that powered most free CMRA checkers retired on January 25, 2026, leaving third-party tools as the primary way to verify the commercial mail receiving classification.
- Bank compliance software cross-checks the address against the USPS commercial mail receiving database during KYC; a flagged address can stall the application.
- The classification is decided by the building, not the brand; switching providers at the same address does not change the flag.
Who this is for
- Founders whose bank or payment processor onboarding stalled and pointed at the address.
- Operators evaluating a virtual office building before signing up to make sure the address passes the commercial mail receiving check.
A CMRA (Commercial Mail Receiving Agency) is any private business that receives mail on behalf of others, from a UPS Store suite to a virtual office provider. USPS retired its free Web Tools API on January 25, 2026, so the old public CMRA lookup is gone. A USPS-certified replacement tool can check CMRA status, residential or commercial classification, and bank acceptance in under 30 seconds.
Why CMRA Status Decides What Your Address Can Do
Banks, landlords, and state filing offices run every address through USPS data before they approve an application. Two fields do most of the work. The CMRA flag tells them whether the address is a registered mail-receiving service. The Residential Delivery Indicator (RDI) tells them whether USPS classifies the address as residential or commercial.
Those two fields together create four possible address types, and each type behaves differently when you try to open a business bank account, file an LLC, or apply for IRS forms. An address that looks identical on a map can be an automatic approval in one case and a manual review in another, purely based on how USPS labeled the record.
Bank compliance software is the reason this matters
Mercury, Relay, Bluevine, and most traditional banks use automated Know Your Customer (KYC) checks that read the CMRA flag in real time. A CMRA flag alone rarely triggers a rejection, but paired with a commercial RDI can route your application into manual review, which can add 2-4 weeks to onboarding.
What Changed When USPS Retired Its Free Address Lookup
The USPS Web Tools API ran for more than two decades as the default free endpoint for address validation, CMRA lookup, and RDI classification. On January 25, 2026, USPS retired it and moved users to a new API with default rate limits of around 60 requests per hour and restrictions on bulk or automated list-based validation, which made free, high-volume address checks impractical for the use cases founders, landlords, and small businesses actually relied on.
That left a gap for anyone checking an address quickly, such as confirming that a virtual office address will not trip a bank filter, or verifying that a potential home office address is classified as residential. Commercial vendors still license the same CASS-certified USPS data, including the CMRA flag and the RDI field, and route it through their own APIs.
The underlying data is still USPS
Any reputable CMRA lookup running after January 2026 is pulling the same USPS-certified records the old Web Tools API exposed. What changed is the interface and the rate limit, not the source of truth.
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The Four Address Types, Explained
Every US street address falls into one of four buckets once you combine the CMRA flag with the RDI classification. Each bucket tells you what the address can safely be used for.
| Address type | Typical example | Bank acceptance | Public-record risk |
|---|---|---|---|
| Non-CMRA, commercial | A real office in a commercial building, a business park, some virtual offices | Highest | Low |
| CMRA, residential | A virtual office inside a residential zoning area, certain co-living mailroom setups | High | Low |
| Non-CMRA, residential | A home address, an apartment | High for sole proprietors, lower for LLCs | High, your home shows on state filings |
| CMRA, commercial | UPS Store locations, most mailbox-network suites, many generic mailbox services | Moderate, some banks ask for extra paperwork | Low |
How CMRA status and RDI classification combine into four address types.
The grade a verification tool assigns is a readable label on top of this combination. Non-CMRA plus commercial tends to score highest, CMRA plus commercial typically scores lowest among valid addresses, and a vacant or undeliverable address scores worst because it cannot be verified at all.
How UPS Store, Mailbox Networks, and Virtual Offices Score Differently
Mailbox-style services look almost identical from the outside, but the USPS data behind each one can differ sharply. Here is how the most common options tend to land.
- UPS Store: registered CMRA at every location, typically classified as commercial. It can work for mailing, but banks frequently flag it.
- Generic CMRA mailbox networks: almost always CMRA-flagged, usually commercial. Useful for forwarding, less reliable for bank onboarding without supporting documents.
- Executive suites and serviced office providers: some locations are CMRA-flagged, others are not, depending on how the building registered with USPS. Always check the specific address, not the brand.
- Virtual office providers: varies provider by provider. Some operate out of real commercial buildings, others out of mailbox-style suites. The flag depends on how USPS registered each specific building, so always run the exact street address before you commit.
- Home address: not CMRA, but residential. Works for many banks and LLC filings, at the cost of publishing your home address on state records.
The brand does not decide the flag, the location does
Two virtual offices from the same provider can land on opposite sides of the CMRA flag depending on the building and how USPS registered that specific suite. Run the exact street address before you assume.
What Banks, the IRS, and LLC Filings Do With a CMRA Flag
Each system treats the flag slightly differently. Knowing which one matters for your situation tells you whether to worry about the result.
| System | CMRA flag handling | What to prepare |
|---|---|---|
| Mercury and Relay (business banks) | Published policies state that virtual offices and CMRA addresses are not accepted as the principal physical address. A registered agent or virtual office may sometimes be listed as the legal or mailing address only. Always check each bank's current address policy before applying. | Lease agreement or mail service agreement, Form 1583 on file with the CMRA operator. |
| Bluevine (small business accounts) | Generally stricter with CMRA addresses for sole proprietors; LLC filings with matching state records are typically smoother. | LLC filing documents, state record matching the address exactly. |
| IRS (EIN (Employer Identification Number) application, tax returns) | Accepts a CMRA street address for EIN applications and tax correspondence. Form 1583 is a separate USPS requirement between you and the CMRA operator, not something the IRS verifies. | Form 1583 signed and on file with the CMRA operator (for USPS compliance, not for IRS submission). |
| State LLC filing offices | Varies by state. Most accept CMRAs as mailing addresses. Some require a physical address as the principal. | Check the specific state rule before filing. |
| Stripe and payment processors | For standard Payments accounts the CMRA flag rarely blocks approval. For Issuing or Financial Accounts, Stripe typically requires a non-CMRA operating address with supporting documents. A home address on a public receipt leaks privacy either way. | Commercial address that matches the LLC record; additional documents for Issuing or Financial Accounts. |
How each institution handles a CMRA-flagged address during verification.
Checklist: Verify Your Address Before You Use It
Run through this list before an address goes on any application. Each step can be done in under a minute, and catching a problem here is the difference between same-day approval and a 3-week hold.
- (1) Confirm the address is valid and deliverable in USPS data. A vacant or undeliverable address fails every downstream check.
- (2) Check the CMRA flag. If flagged, prepare a lease or mail service agreement and a signed Form 1583.
- (3) Check the RDI classification. Commercial tends to score best, residential is fine for many uses, vacant is a red flag.
- (4) Confirm the address has a suite number if the building needs one. Missing suite numbers drop the score and can fail matching during bank verification.
- (5) Match the exact address on your state LLC filing, EIN letter, and bank application, character for character.
- (6) Run the same check on every location you are considering before you sign up, not after.
How to Check Your Address in 30 Seconds, Free
We built the save office address checker to cover the gap left by the retired USPS Web Tools API. It runs the same CASS-certified CMRA and RDI check, combines them with deliverability and building-type data, and gives the result a plain-English grade from A to F with a breakdown for banks, LLC filings, the IRS, and privacy. No signup, no payment, no stored address data.
Paste any US street address at the save office address checker. Within a few seconds, the tool returns the CMRA status, the residential or commercial classification, a grade from A to F, and a field-by-field read on whether it will clear bank onboarding, work as an LLC principal address, and pass IRS filing requirements.
If the tool returns a grade that is lower than you need, every save office location across seven US cities — New York, Washington DC, San Francisco, Los Angeles, Wilmington (Delaware), Cheyenne (Wyoming), and Tampa — is a real US commercial building, accepted for LLC filings, IRS, and state compliance.
Beyond the CMRA Flag: Where Address Classification Keeps Showing Up
The CMRA check tends to be the headline, but the same USPS classification follows the address into places founders do not always expect. Homeowners insurance, commercial insurance, payment processor approvals, Google Business Profile verification, import-export license applications, and certain SaaS vendor onboarding flows all read the same flag. An address that clears bank verification tends to clear all of them.
The real question is whether the address will hold up across every system you need it for, not just one application. A one-time 30-second check before the address goes on the first form is a cheap, simple safeguard.
Frequently Asked Questions
