Virtual Mailbox & Form 1583 Rules in Florida
A commercial mailbox rental (CMRA) or private mailbox (PMB) in Florida cannot serve as your LLC's registered agent with the state. However, a CMRA can generally be used as your business address for other purposes, though you should verify this with your specific provider and any relevant regulations. When opening a virtual mailbox at a CMRA, the USPS Form 1583 must be completed. Florida permits remote online notarization (RON) under Chapter 117, Part II, and an in-state online notary may notarize the Form 1583, allowing you to complete the entire mailbox sign-up process online.
The Form 1583 typically requires either notarization or witnessing by the CMRA owner; notarization is not universally mandatory across all USPS locations, as some accept CMRA-owner attestation. For the most current requirements and procedures, confirm details on the official USPS and Florida state websites before proceeding. This overview provides general information only and does not constitute legal advice; consult a qualified attorney for your specific situation.

How a virtual mailbox works
A virtual mailbox is a real street address at a commercial mail-receiving agency (CMRA) that scans your mail; opening one means filing USPS PS Form 1583, witnessed by a notary or the provider, with two IDs.
| Detail | As the rule stands |
|---|---|
| Can a virtual mailbox be your registered agent? | No (a PMB cannot be your registered agent) |
| Can it be your LLC business address? | Generally yes — verify |
| Online notarization (RON) for Form 1583 | Online notarization (RON) available |
| Form 1583 witnessing | Notary or CMRA-owner witness (in person or by A/V) |
| PMB designator (address line) | 'PMB <number>' or '# <number>' (USPS DMM 508.1.4) |
| Governing citation | Fla. Stat. §117.201 et seq.; USPS DMM 508.1.8 |
Opening any virtual mailbox means filing USPS PS Form 1583. The form must be witnessed — by a notary or by the mailbox provider (the CMRA owner/manager), in person or by real-time audio-video under the 2024 CMRA Clarification rule — and you supply two acceptable IDs. It is usually notarized, and the notarization can be done online via remote online notarization (RON) wherever the state allows it.
Confirm before you file. This is informational only, not legal advice. The official state Secretary of State / notary page and USPS are the authoritative sources.
Check your state's rule →Virtual address for an LLC in Florida → · Choosing a provider →
Compiled from the USPS federal baseline (DMM 508 / 39 CFR) and the state notary/RON statute, and verified June 2026. Always confirm the current rule on the official state Secretary of State / notary page before you rely on it — RON law is still moving. How we compile this. Informational only, not legal advice.