Uk tax on income held in an overseas company

I own a company registered overseas. It holds investments, the income from which is kept in the overseas company and not remitted to the UK. Is this income taxable in the UK?

Hi andrewrb,
Unless you are taxed on the Remittance Basis, you should declare any foreign investment income (ie dividends etc) in the Foreign pages (SA106) of your Self Assessment Tax return.                            Paying tax on the remittance basis (Self Assessment helpsheet HS264) 
Tax on foreign income
Thank you.