Set up a limited company: step by step
Incorporating a private limited company in the UK follows a clear order. If you prepare the decisions and details in advance, the online application with Companies House takes less than an hour – and the company usually exists within 24 hours.
Steps 1–2: name, people and articles
Check that your company name is available and doesn’t clash with existing trade marks. Decide who will be a director and shareholder, how the shares are split and who counts as a person with significant control (PSC). Choose articles of association: most companies adopt the model articles; several founders often add a shareholders’ agreement.
Step 3: verify identities and incorporate
Every director and PSC verifies their identity with Companies House – free via GOV.UK One Login or through an authorised corporate service provider – and receives a personal code. You then file the online application with the registered office address, registered email address, SIC code describing your business, statement of capital and the personal codes. The fee is £100 (since 1 February 2026).
Steps 4–5: HMRC, bank and the start
With your certificate of incorporation you open a business bank account. Register the company for Corporation Tax within three months of starting to do business, for VAT once taxable turnover exceeds £90,000 in a rolling 12 months, and for PAYE before the first payday. Keep your statutory registers, including the PSC register, up to date. planix shows you the next open step at any time.
Frequently asked questions
How long does it take to set up a limited company?
Online applications to Companies House are usually processed within 24 hours. Plan time beforehand for identity verification and agreeing the share split – and afterwards for the bank account and HMRC registrations.
In which order do I set up a limited company?
Name, people and shares first; then identity verification; then the online application with Companies House. Only after incorporation follow the bank account, Corporation Tax registration and, where needed, VAT and PAYE.
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