Savers in the basic, higher and additional rate tax bands who invest the maximum £20,000 allowance into an ISA this tax year will need their provider to deliver a minimum rate of return of 1.84% p.a. to beat inflation.
The situation is far worse for 20% tax payers with non-ISA investments of £20,000, who must achieve a rate of 2.30% just to keep pace with inflation, rising to 3.34% for a 45% additional rate tax payer.