Starting a business is an exciting venture, but navigating the legal requirements can be challenging—especially when it comes to company formation in the UK. Whether you’re launching a startup, setting up a limited company, or expanding as a foreign investor, submitting the correct documentation is a crucial first step in ensuring legal compliance and smooth operations.
In this guide, we’ll walk you through all the documents required for registering a company in the UK, the types of companies you can form, and how Interface Accountants can support your formation process from start to finish.
Understanding Company Formation in the UK
Company formation refers to the legal process of incorporating a new business entity with Companies House, the official registrar in the UK. Once registered, your company becomes a distinct legal body, separate from its owners or directors. This process is vital for gaining credibility, limiting personal liability, and accessing corporate tax benefits.
There are several company structures in the UK, but the most common for entrepreneurs is the private limited company (Ltd).
Key Documents Required for Company Formation
To register your business successfully, you’ll need to prepare and submit a series of mandatory documents. These documents provide essential information about your company, its structure, and its stakeholders.
1. Memorandum of Association
- A legal statement signed by all initial shareholders (subscribers) confirming their intention to form the company.
- Required for all companies and submitted during the online application.
2. Articles of Association
- These are the rules for running the company agreed upon by the shareholders and directors.
- You can use model articles provided by the UK government or submit customized versions tailored to your business.
3. Form IN01 (or Online Equivalent)
- This form includes all the critical details of your company:
- Company name
- Registered office address
- Director details
- Shareholder details
- Statement of capital and initial shareholdings
- People with Significant Control (PSC)
When forming your company online via the Companies House portal, this information is collected digitally instead of through Form IN01.
4. Proof of Identity and Address
All directors, shareholders, and PSCs must submit:
- A valid photo ID (passport or driving licence)
- Proof of address (bank statement, utility bill, council tax statement—not older than 3 months)
5. Registered Office Address
- This must be a UK-based address where official communications can be sent.
- Can be your business premises, accountant’s office, or a registered office service provider.
Optional but Recommended Documents
While not mandatory, the following documents are useful to keep ready for post-formation compliance and clarity:
- Shareholders Agreement – Defines how the company will be operated and how shares will be managed or transferred.
- Business Plan – Especially helpful for securing funding and managing growth.
- Initial Resolutions and Minutes – Recording the agreement to form the company and appoint directors or issue shares.
Company Formation Process: Step-by-Step
Step 1: Choose a Company Name
Ensure it’s unique and complies with Companies House rules.
Step 2: Decide on a Business Structure
Most small businesses register as Private Limited Companies (Ltd).
Step 3: Prepare Documents
Gather all the documents listed above and choose whether to submit online or via post.
Step 4: Register with Companies House
You can do this directly or through a formation agent or accountant.
Step 5: Receive Certificate of Incorporation
Once approved, you’ll receive this official document confirming your company exists.
How Interface Accountants Can Help
At Interface Accountants, we simplify the entire company formation process, ensuring you’re compliant from day one. Whether you’re a UK-based entrepreneur or an overseas investor looking to expand, our expert team can handle documentation, registration, tax setup, and post-formation support.
Our Company Formation Services Include:
- Advice on choosing the right structure
- Preparing and submitting incorporation documents
- Providing a registered office address (if needed)
- Setting up PAYE, VAT, and Corporation Tax
- Ongoing compliance support
By choosing Interface Accountants, you save time, avoid common mistakes, and ensure your company is ready for success.
Why Get Professional Help for Company Formation?
While it’s possible to register a company on your own, many entrepreneurs prefer expert support to avoid delays, errors, and legal complications. With constantly evolving regulations and responsibilities, partnering with a reliable firm like Interface Accountants ensures peace of mind and professional compliance.
Final Thoughts
Understanding and preparing the right documents is the foundation of successful company formation in the UK. From legal requirements to practical considerations, being thorough in this stage can save you future headaches and streamline your path to business success.
If you’re ready to register your company or need help navigating the process, contact Interface Accountants for personalised guidance and complete formation services.
FAQs
Can I form a company if I live outside the UK?
Yes, non-residents can register a UK company, but a UK registered office address is mandatory. Interface Accountants can assist with this.
How long does the company formation process take?
Online registration is usually completed within 24 hours. Postal applications can take 8-10 days.
Do I need to appoint a company secretary?
It’s not a legal requirement for private limited companies, but you can choose to appoint one.
What is a People with Significant Control (PSC)?
A PSC is anyone who holds more than 25% of shares or voting rights or otherwise exercises significant influence over the company. Their details must be submitted during registration.