A review published today claims providers of cash ISAs have shortened transfer times significantly since the Office of Fair Trading (OFT) intervened in 2010.
The highest rate offered on fixed-term five-year cash ISAs is down 10% on last year, from 5% to 4.5%, according to a comparison report released today.
An adviser has criticised Barclays Wealth for what he says have been "ridiculous" delays transferring a client's portfolio.
Saving into stocks and shares ISAs overtook savings into pensions for the first time in a decade in 2010/11, figures suggest.