About us

The CIOT is the leading body in the UK for taxation professionals dealing with all aspects of taxation. Our primary purpose is to promote education in taxation. One of our key aims is to achieve a more efficient and less complex tax system for all. Our comments and recommendations on tax issues are made solely in order to achieve this aim; we are an entirely apolitical organisation.

Membership of the CIOT is by examination; nationally recognised as the gold standard of UK taxation education. We support our 17,000 members and 4,000 students throughout their tax careers, providing assistance through our London-based head office and worldwide network of 40 branches. The CIOT is a registered charity, number 1037771 and a regulatory body for the purposes of Anti-Money Laundering supervision of tax practitioners.

The CIOT is a member of the Confédération Fiscale Européenne (CFE) and is registered under the European Commission's Transparency register, number 91596579174-61.

CIOT Office:

1st Floor
Artillery House
11-19 Artillery Row
London SW1P 1RT

Tel: 020 7340 0550 or *0844 579 6700

*An 0844 number is a fixed rate non geographic number. This means that a caller from a landline always pays the fixed call price of up to 5p per minute when calling this number from anywhere in the UK. Therefore, callers from outside of the London area will be charged the local calling rate for their area. The Institute does not receive commission for using the 0844 number. If you are calling from a mobile phone it is normally more cost-effective to use the 020 geographic number.