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Official Companies House Service

Update Your Business Activity

Change your company's Standard Industrial Classification (SIC) codes quickly and easily. Fully compliant with UK regulations.

Secure & Encrypted
Fast Processing
Expert Support

Find Your Company

Search the Companies House register to begin your update.

Can't find your company? Ensure you are entering the correct registration number.

Why Update Your Activity?

Keep Your Business Accurate & Compliant

Your Standard Industrial Classification (SIC) code tells the world what your business does. Keeping it updated is a legal requirement.

100% Compliant

Ensure your company records meet strict Companies House regulations with our verified SIC code selection.

Accurate Records

Keep your public business profile up to date, which is crucial for banking, loans, and supplier checks.

Avoid Penalties

Incorrect classification can lead to inquiries or issues with HMRC. We help you get it right.

Full Documentation

Receive digital confirmation and updated company registers immediately after filing.

Instant Filing

Direct digital connection to Companies House means your updates are submitted instantly.

Online Visibility

Your correct business activity will be reflected on the public register within 24 hours.

Simple 4-Step Process

How It Works

We've streamlined the process of updating your business classification codes.

Find Your Company

Search the Companies House register to locate your business instantly.

Select Activity

Choose up to 4 new SIC codes that best describe your current business activities.

We Submit

Our system validates your selection and submits the update directly to Companies House.

Confirmation

Receive digital confirmation once the public register has been updated, usually within 24 hours.

What's Included

Everything Needed to Update Your Status

One fixed fee covers the whole update. From selecting the right SIC codes to confirming the change on the public register, everything is included with no hidden extras.

01

Official SIC Code Update Submission

02

Companies House Confirmation Statement

03

Up to 4 Activity Codes Selection

04

Digital Filing Receipt

05

Public Register Update

06

Compliance Verification

07

Secure Data Processing

08

Email Support

Why Update With Us

Filed Correctly, First Time

Verified Filing

Official Companies House agent, filed directly to the register.

Secure Data

256-bit SSL encryption on every detail you submit.

5-Star Rated

Trusted by UK businesses for accurate, on-time filings.

Expert Team

Compliance specialists reviewing every submission.

Common Questions

Frequently Asked Questions

Common questions about updating your business activity.

Still have questions?

Our support team is here to help you get started.

Contact Us

Tyson Roselyn Accountants Logo

Your accountants for peace of mind. Tyson Roselyn helps sole traders, limited companies, and directors across the UK with accounting, tax, and compliance, from formation to filing. Streamlined, accurate, and 100% online, so you stay compliant without the stress.

Support

+44 7414 111 162support@tysonroselyn.com
2nd Floor, Office 2A, Grand Arcade, Apex House, London N12 0EH, United Kingdom
71-75 Shelton Street, London WC2H 9JQ

© 2026 Tyson Roselyn Accountants Limited.
All rights reserved.

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Tyson Roselyn is a private company. We are not Companies House, GOV.UK, or any UK government agency, and are not affiliated with or endorsed by any government department. Companies House identity verification is carried out through our authorised ACSP (Authorised Corporate Service Provider).