Nationwide is offering a two-year fixed-rate bond that pays 6 per cent on lump sum deposits up to a maximum of £5,000.
Customers can take a monthly income option on Nationwide's member's summer bond that pays 5.8 per cent gross monthly.
The product is only available to Nationwide members who have held a personal membership savings account, FlexAccount or Nationwide mortgage for three years or more. Only one account per member is allowed and the offer is not available to Nationwide credit card holders or members of Nationwide's subsidiaries. The bond is issued on a first-come, first-served basis.
Executive director Stuart Bernau says: “We believe it is important to reward loyalty and our members' fixed rate bonds have always proved very popular. We are delighted to be offering members one of the best available rates for a lump sum of up to £5,000. This is an excellent return over two years.”