The product comes with a free standard valuation up to £560 and is available for house purchase applications.
Martin Richardson, Leeds Building Society’s director of business development, said: “This is an outstanding offer that allows customers to guarantee low payments for two years, and benefit from the peace of mind this delivers.
“We are confident that certainty at an affordable rate will be very popular. There is a strictly limited tranche, and will be withdrawn no later than Friday 16 October 2015.”