Can you use a PO box as a business address? It’s one of the first questions founders ask when they want to keep a home address off the public record. The short version: a PO box is fine for some mail, but it will not pass as your official company address any more. If you’re weighing your options, our virtual office guide walks through every route in one place.
This matters because the rules changed. Since March 2024, Companies House no longer accepts a Royal Mail PO box as a registered office, and the same applies to lookalike box services from other providers. Below, you’ll see exactly what a PO box can and can’t do, what the law now demands, and why a proper business address service — the kind explained in what a virtual office address is — has become the standard compliant fix.
Quick answer
A PO box works as a mailing or correspondence address for general post. It cannot be your registered office, and most banks and payment providers will reject it. For anything that needs an “appropriate” verifiable address — company registration, a director’s service address, a business bank account — you need a real street address, which is what a virtual office provides.
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- Flexible monthly plans — request a quote, no long lease
Can you use a PO box as a business address in the UK?
Partly. You can print a PO box on invoices, your website, or marketing as a contact and mailing address, and Royal Mail will deliver post to it. What you can’t do is use it where the law asks for a genuine, checkable location. Can you use a PO box as a business address for company registration? No — that door closed in 2024.
Think of it as a contrast that’s easy to remember: a PO box hides your mail behind a number, but a registered office has to receive it, in the open, at a real place. Regulators and banks care about the second thing.
What does Companies House require for a registered office?
Under the Economic Crime and Corporate Transparency Act, every registered office must now be an “appropriate address.” According to the official Companies House rules, that means a physical UK address in your country of registration where someone acting for the company will see any post delivered, and where the sender can get confirmation of delivery.
A PO box fails both tests, which is why the guidance states plainly that you can no longer use a Royal Mail PO box — or similar services — as your registered office. Get it wrong and the company can be struck off the register. The cheapest address can quietly cost you the whole company.
When is a PO box actually fine for a business?
A PO box still has honest uses. Sole traders who don’t want their home address on a website often use one for customer post, and a Royal Mail PO box keeps that mail in one place. It works for parcels, returns and general correspondence.
The limits show up the moment you need credibility or compliance. You still have to register your real address with Royal Mail behind the box, most business bank accounts and card processors won’t accept a box number, and it can’t sit on the public register as a registered office or director’s service address. So can you use a PO box as a business address for the paperwork that counts? Not on its own.
What is the compliant virtual-office alternative?
A virtual office gives you what a PO box can’t: a real, staffed commercial street address you’re allowed to use as your registered office, your director’s service address, and your trading address. Mail is received, scanned or forwarded, and your home address stays private. It’s the same setup covered in our guide to a virtual office in London, available across the country.
Because it’s a genuine location with a person to receive post, it satisfies the “appropriate address” test, and it reads as a professional business address to clients, banks and suppliers. That’s the turn: one address, fully compliant, nothing hidden.
How much does a UK business address cost?
Virtual office and business-address plans in the UK run on flexible monthly terms rather than a fixed lease, so the price depends on the location and whether you add mail forwarding or call answering. Prestige postcodes cost more than regional ones. Because it’s a lead-gen product, you request a quote for the address and services you actually need instead of paying for an empty office. How far in advance should you set it up? Before you incorporate — you need the address in place first.
Ready to set up your virtual office in the UK?
Frequently asked questions
Can you use a PO box as a business address?
You can use it for general mail and correspondence, but not as your registered office or on the public company record. Companies House stopped accepting PO boxes as registered offices in 2024.
Can a PO box be a registered office address?
No. A registered office must be an “appropriate address” — a physical UK location where post is received and delivery can be confirmed. A PO box meets neither condition.
Can sole traders use a PO box?
Yes, as a mailing address to keep a home address private. Just know that many banks and payment providers still ask for a full physical address, and a box can look less established to customers.
Will a bank accept a PO box as a business address?
Usually not. Most UK business bank accounts and card processors require a verifiable physical address for anti-fraud checks, which a PO box doesn’t provide.
Is a virtual office address legal for a limited company?
Yes. A virtual office provides a real commercial address you can use as your registered office and director’s service address, meeting the appropriate-address rule.
What’s the difference between a PO box and a virtual office?
A PO box is a locked mailbox at a sorting office. A virtual office is a real business address at a staffed building, usable for registration, banking and mail handling.
Sources
- Companies House — the UK registrar that maintains the public register of company addresses.
- GOV.UK — Company address rules — what an appropriate registered-office address must do.
- GOV.UK — Registered office address on formation — the address requirement when you incorporate a company.
- Economic Crime and Corporate Transparency Act 2023 — the law that introduced the ‘appropriate address’ rule and ended PO-box registered offices.
This article is general information, not legal, financial or tax advice. Rules differ by jurisdiction and change over time. Confirm your situation with a qualified solicitor, chartered surveyor or accountant. Last reviewed: 8 August 2026.
