Incorporating your business
Last reviewed 20 July 2026
Incorporation means moving your existing business into a limited company. Done at the right time, for the right reasons, it saves tax and protects you. Done by default because “everyone has a company”, it adds cost and admin for nothing.
Reasons that justify it
- Liability. The company’s debts stop being your personal debts — decisive if you carry stock, premises, staff, or contract risk.
- Tax at growing profits. Corporation tax (19%–25%) plus dividend tax on what you extract can beat income tax plus National Insurance on the whole profit — especially if you can afford to leave some profit in the company.
- Perception and access. Some contracts, agencies, and lenders simply prefer companies.
- Planning room. Company pension contributions, income timing between tax years, and bringing in a spouse or co-owner as shareholder all work more flexibly through a company.
Reasons that don’t
Hiding income doesn’t work (HMRC sees company filings), and at modest profits fully withdrawn, recent dividend tax rises have narrowed the gap — from April 2026 dividends are taxed at 10.75% (basic) and 35.75% (higher), on top of corporation tax already paid. The arithmetic needs doing with current rates, not folklore from 2015.
What the switch involves
- Form the company and appoint directors and shareholders — decisions with tax consequences, not formalities.
- Transfer the trade and assets. Goodwill and equipment need valuing; reliefs usually prevent an immediate capital gains bill, but only if claimed properly.
- Close the sole-trade record cleanly: final accounts and Self Assessment covering the switch.
- New registrations: corporation tax, PAYE for your own salary, VAT transferred or re-registered.
- New bank account, new invoicing details, and contracts moved across.
There’s also timing: incorporating at your accounting year end is far tidier than mid-year.
Dentists, a special note
For associates, incorporation interacts with NHS superannuation and how your income is paid — the answer is genuinely individual. It’s a conversation we have with dental clients constantly; see our dentists page.
How we help
We run the numbers both ways with current rates, tell you plainly whether incorporation pays, and if it does — handle the whole switch, from formation to first company accounts.
This guide is a general summary, not advice for your specific circumstances. Rules and rates change — for a recommendation you can act on, talk to us.
