Why Am I Getting So Much Mail After Forming a Limited Company?

Last updated: Oct 09, 2026 2 minute read Limited Company
featured-image
Daniel Tuckey
Written by: Daniel Tuckey

You get a lot of post after forming a limited company because your registered office address is listed on the public Companies House register. Anyone can find it, including businesses that send mailers to new companies. Some of that post is genuine and important. Some is sales mail, and a small amount can be misleading. Here's how to tell the difference.

Key Takeaways

  • Your registered office address appears on the public register, so anyone can look it up.
  • Newly formed companies often receive sales mailers, and some are legitimate while others are not.
  • Official post from Companies House or HMRC should always be taken seriously.
  • We don't sell our customers' data.
  • A registered office service can keep your home address off the register and filter out most junk.

Why Does New Company Mail Start Arriving?

When a company is registered, its registered office address goes onto the public register at Companies House. This is a legal requirement, and it means the address is freely available for anyone to find.

Some businesses use the register to find new companies and send them offers, from stationery and websites to accounting and marketing services. It's the same reason a new homeowner gets leaflets through the door. The timing can make it feel as though your details were shared. They weren't. We don't sell customer data.

 

The mail usually isn't a sign your details were leaked or sold. Your registered office address is public by law, so anyone can look it up and send you post the week your company appears on the register.

Which Mail Should I Take Seriously?

Post from Companies House and HMRC matters. These are the bodies your company deals with every year, and a letter from either can relate to something with a deadline attached.

It's worth opening these straight away. If a letter looks like it's from an official body but something feels off, check the sender's details against the organisation's own website. Official guidance on GOV.UK explains how to spot scam letters and emails.

How Can I Tell If a Letter Is a Scam?

Not every unexpected letter is a scam, but a few things should make you pause:

  • It asks for payment quickly, or says you'll face a penalty if you don't pay today.
  • It looks official but doesn't come from Companies House or HMRC.
  • It offers to "register" or "renew" something your company already has.
  • The sender details don't match the organisation they claim to represent.

If you're not sure about a letter, don't pay anything until you've checked it. You can also contact our support team and they'll point you in the right direction.

Can I Stop the Junk Mail?

You can't remove your registered office address from the public register. What you can do is choose which address goes there.

If you use a registered office service, the address on the register is ours, not your home. Our Registered Office London service uses an N1 London address. It keeps your home address private, and it filters out junk mail so only the important post is forwarded to you.

If you're using your own address at the moment, our guide on using your home address as your registered office explains what that means. Our guide to mail forwarding services covers how forwarding works, and what post we forward lists what's included.

What Should I Do Next?

  1. Open anything from Companies House or HMRC and note any dates mentioned.
  2. Put sales mailers to one side and don't feel pressured to reply.
  3. Check any letter that asks for payment before you act on it.
  4. Decide whether you'd like to move your registered office to an address that isn't your home.

When you're ready, you can compare our company formation packages or visit our homepage to see everything we offer.

FAQs

Why am I getting so much post after setting up my company?

Your registered office address is on the public register, so sales and marketing businesses can find it. Most of it is mailers aimed at new companies.

Did Companies MadeSimple sell my details?

No. We don't sell our customers' data. The address was available to anyone on the public register.

Is all of this mail junk?

No. Post from Companies House and HMRC is important and should be opened and acted on.

How do I know if a letter is a scam?

Be wary of letters demanding fast payment or offering to register or renew something you already have. Check the sender against the organisation's official website before you pay.

Can I remove my address from the public register?

No, a registered office address must be shown. You can use a registered office service so the address shown isn't your home.

Who can help if I'm unsure about a letter?

Our support team can advise on any mail you're unsure about.

This article is for general information only and does not constitute legal advice. If you're unsure about a letter, check the sender's official website or GOV.UK, or speak to a qualified professional, before taking action.