HM Revenue & Customs

Income Tax on income

To calculate this figure you will need to deduct any remaining personal allowances to which you are entitled from your net profit and then calculate the tax due.

Further information can be found by following the link below. The calculator tools that are available on the Campaign webpages can help you estimate your tax.

Your guide to making a voluntary disclosure

If you have income to disclose from a second business you should include the liability from this business in the 'Other liabilities' box under the appropriate year. Further information about 'Other liabilities' is available within the help associated to that box.