Business incorporation calculator
Where you run a business as a sole trader it might save tax and NI if you transfer it to a company. However, doing so has immediate and long term tax consequences.
Using the calculator
Our calculator works out the tax effects of transferring an unincorporated business to a company. It shows how much, if any, tax you can save on business profits. It also allows you to project both your and the company's tax and financial position in the four years following incorporation.
Related Topics
-
HMRC checks directors’ loans are paid up
HMRC is writing to agents to check corporation tax returns for previous years are correct as it used to be possible to add a future date for an anticipated loan repayment. What’s the issue and what should you do if your advisor receives a letter?
-
Working from home tax relief scrapped in Budget
Employees who are required to work from home are currently able to claim tax relief at a flat rate of £6 per week. That's changing from 6 April 2026. What's the full story?
-
Government quietly confirms change to key tax deduction
The headlines for individuals at last week's Budget were all about the income tax hikes. But the small print contained confirmation of another important change. What’s the full story?

This website uses both its own and third-party cookies to analyze our services and navigation on our website in order to improve its contents (analytical purposes: measure visits and sources of web traffic). The legal basis is the consent of the user, except in the case of basic cookies, which are essential to navigate this website.