An individual aged 18 or over was able to open a TESSA with a bank,
building society or other
financial institution from 1 January 1991 to 5 April 1999. A specific requirement was the presentation of the applicant's
National Insurance number, to ensure only one TESSA (tax free) account investment could be operated by the individual per year. Interest on the TESSA was free from UK
income tax. The favourable tax treatment of a TESSA lasted for five years, and it was possible to invest up to £9,000, with a maximum investment of £3,000 in the first year and £1,800 in each of the second to fifth years (although, if the maximum was invested in the first four years, only £600 could be added in the fifth year). Withdrawals were permitted within the first five years: tax relief was clawed back if any of the invested capital was taken out, but withdrawals of interest did not trigger a
clawback of the tax relief. ==Evolution==