Be warned!

THE DEDUCTIBILITY OR potential lack of deductibility for corporation tax purposes of company contributions to pension arrangements for directors particularly shareholding directors of private limited trading companies was highlighted in Mike Truman's 'Meeting Points' Taxation 14 July 2005 page 412 in the item 'Contributions from the family company'.
Under the new pensions rules from 6 April 2006 a contribution of up to £215 000 can be paid to a company pension arrangement on behalf of an individual by a combination of company and employee contributions subject to the employee's contribution not being more than the greater of £3 600 or 100% of his annual salary. On an annual basis this is going to be the only check and the amount increases year on year.
For ordinary employees pension planning from 6 April 2006 is going to be much simpler...