Isa investments will celebrate their tenth birthday at the end of 2009, although many savers are not taking advantage of the full allowance which they provide.
According to recent research conducted by Halifax, less than a quarter of savers in the UK are making full use of their Isa investments .
Despite ten per cent of savers saying they intend to make the most of their Isa by the April 5th deadline, the study points out that up to two-thirds of respondents could be missing out.
Commenting on the findings, Flavia Palacios Umana, head of savings at Halifax, told Fairinvestment.co.uk: "The Isa has proved to be a very popular savings vehicle since its introduction almost ten years ago, but it is worrying that savers still aren't making the most of their allowance each year."
Leeds Building Society recently announced it has launched a new range of Isa products which are available for two, three or five years and pay up to 3.5 per cent interest tax free .




