The mortgage, launched today, is available for borrowers with a 95% LTV and has an £845 product fee.
The news comes as the Society reduces two-year fixed rates for mortgage customers with 15%, 10% and 5% deposits across the range in a move designed to help first-time buyers.
Brendan Gilligan, Mortgage Product Manager for Yorkshire Building Society, said:
“We’re very pleased to launch this very competitive, sub-4.00% rate for borrowers who want to borrow 95% of the value of their home. As a financially sustainable mutual with no external shareholders, we want to help as many people as possible to buy their own home and first-time buyers are a key part of this. We understand the challenges of buying your first home and have cut rates across the higher loan-to-value brackets to assist first-time buyers as much as possible.”