National Savings Tessa rollover

National Savings has launched a Tessa Isa which offers the same interest rate as its cash mini Isa at 5.75%. The Tessa Isa also comes with the guarantee that the variable rate will be at least as high as the base rate for the whole tax year to 5 April 2000. Savers with maturing Tessas will now be able to invest proceeds of up to £9,000 in the Tessa Isa in addition to the National Savings' cash mini Isa and its range of other tax-free savings products. Deposits can be made by post. Other key features are minimum deposits of only £10 and no fees, charges, penalties or hidden costs, accord...