Savers have been urged to take action now ahead of a critical deadline . A savings expert has also voiced concerns that people often don't understand the rules that apply to their savings and could needlessly be paying tax . The tax year ends on April 5, marking the final opportunity to utilise your ISA allowance for the current year. This permits you to deposit up to £20,000 annually into these tax-free accounts . You can allocate the allowance as you wish between stocks and shares ISAs and