You need a Miami address for the business, and the options start piling up. A P.O. box at the post office down the street. A mailbox at the shipping store next to your favorite cafecito window. A coworking membership in Wynwood. A virtual office on Biscayne Boulevard. They all promise "a business address," and they're priced all over the map.
We sell one of these, so take our view with that in mind. But each of the four is the right answer for somebody, and the wrong one costs you either money or a lot of driving on I-95. Here's how they really compare, in general terms. Providers differ, so check what each one includes.
Two words first
P.O. box. A box you rent from USPS, the US Postal Service, inside a post office. It's a USPS product, run by USPS.
CMRA. Short for commercial mail receiving agency. It's the postal name for a private business that accepts mail for its customers and holds it or sends it on (USPS CMRA FAQ). Shipping-store mailboxes, virtual mailboxes and virtual offices are all CMRAs in postal terms, whatever their signs say. Your address there carries a "#" or "PMB" and a mailbox number, which our guide on what PMB means in an address explains.
Both kinds ask you to prove who you are before mail starts flowing. That's normal, and it's there to protect your mail.
A P.O. box at the post office
The classic. You reserve a box, then go to the post office with PS Form 1093 (the USPS box application) and two IDs, one with your photo and one that proves where you reside, to pick up your keys (USPS P.O. box basics).
What's good: it's USPS itself, the box is behind a locked door, and the price usually beats everything else on this list. If you're already near that post office every week and you only get letters, it's hard to argue with.
What to know: a standard P.O. box isn't a street address. Only USPS can put mail in it, so a courier package from a private carrier can't go there (same USPS page). Some post offices offer a premium option that gives the box a street-style address and accepts private-carrier packages, but only at locations that take part. And you read your mail by going there and opening the little door. No photos, no scans.
On Sunbiz, the Florida state website where LLCs are registered, a P.O. box can be your LLC's mailing address but not its principal office, which has to be a street address (Sunbiz filing instructions).
A mailbox at a shipping store
These are the mailboxes at pack-and-ship stores, often in a strip mall near home. Postally, the store is a CMRA, so you sign PS Form 1583 (the USPS form that authorizes a business to receive your mail) and get a street address with a "#" and a box number.
What's good: it's a real street address, the stores often keep long hours, and many take packages from different carriers. If you ship products, being able to drop a box at the same counter where you pick up your mail is a genuinely nice setup. Some stores send a text or email when something arrives.
What to know: it usually works best when you're close by. Mail handling varies a lot from store to store. Some photograph envelopes or scan on request, many expect you to come in and look. If you travel, or the business is run from somewhere else, that's where it gets awkward.
A coworking membership
A coworking space rents you a desk, a shared lounge and meeting rooms, by the day or the month. Many will receive mail for members, either in the membership or as an add-on.
What's good: you get a place to work, and that's the whole point. If you're tired of the kitchen table and want coffee, other humans and a printer, a coworking membership solves a different problem than a mailbox does, and solves it well. Your mail is right there when you show up.
What to know: you're paying for space, so it usually costs more than a mail-only option. Mail handling is often a front desk or a shelf, and scans or forwarding vary by space. If you rarely go in, you're paying for a desk you don't use.
A virtual office or virtual mailbox
A street address, a team that receives your mail, and an app where you see it. A virtual mailbox is the address and the mail. A virtual office usually adds things like a phone number, packages, a proof of address document and access to meeting rooms.
What's good: you don't have to be there. Envelopes show up as photos, you ask for scans or forwarding from your phone, and many let you sign Form 1583 remotely. USPS allows signing on a real-time video call with the CMRA's staff or in front of a notary commissioned in the US (Federal Register, 2024). It fits owners who travel, run the business from another city or country, or just don't want another errand.
What to know: there's no desk of your own. Entry plans often charge per scan, packages may need a higher plan, and banks and payment platforms set their own address rules. Mercury, an online business bank, doesn't accept virtual or mailbox addresses as the company address (Mercury). So ask yours first.
The same question for all four: can it go on Google Maps?
None of the mail-only options can. Google says that if you rent a mailing address but don't operate from it, that location isn't eligible for a Business Profile, the listing that puts you on Maps (Google Business Profile guidelines). That covers P.O. boxes, shipping-store mailboxes and virtual mailboxes alike. Working from home in Miami? Our guide on which address goes on your website, invoices and Google walks through the Google side.
So which one fits?
Rough rules of thumb, not gospel:
- You're local, you get a few letters and you like the post office: a P.O. box is cheap and solid.
- You're local, you ship products and you'll drop by often: a shipping-store mailbox near home is convenient.
- You actually want a place to work: coworking. The mail comes along for the ride.
- You're away a lot, run the business from elsewhere, or want your mail on your phone: a virtual mailbox, and a virtual office if you need packages, a phone number or proof of address.
Some people combine them, too. A coworking day pass when you need a desk, and a mailbox address that never changes.
Where Prima fits
Prima is a virtual mailbox that grows into a virtual office, at 2125 Biscayne Blvd in Edgewater, a landmark office building between Downtown and Midtown Miami. Your address is "2125 Biscayne Blvd, Suite 300 #" plus your mailbox number. Our own team receives your mail in the building, a photo of every envelope lands in the app, and you scan, forward or pick it up when you choose. You sign up online in minutes and sign Form 1583 with an online notary on a video call, included.
The Address plan is $39 a month today, month to month with no contract. Business adds packages, a Miami number with call forwarding and a proof-of-address service agreement, and Executive adds check deposits and meeting room hours in the same building. See current prices, the side-by-side comparison, or what a virtual mailbox in Florida looks like with us.