The account can also be opened via the building society's branches. Tom Riley, Nationwide’s Director of Banking & Savings, said: “As a mutual, we continue to look at how best to reward and offer value to our members and the launch of our new Member Exclusive FRISA does just that. "As we fast approach the end of the tax-year, this new account means our current best on-sale ISA rate is available exclusively to existing members. "We want to ensure that this new account is available to as many members as possible, which is why it is available to open online and via our branches.