Yorkshire Building Society is offering discounted mortgage rates for borrowers who have saved for a deposit in a Help to Buy Isa.
The Yorkshire is offering two two-year fixed rates, one at 2.26 per cent at 90 per cent LTV and another at 3.27 per cent at 95 per cent LTV.
Five-year fixed rates are also available at 2.79 per cent at 90 per cent LTV and 3.89 per cent at 95 per cent LTV.
All discounted rates have a free standard valuation and £150 cashback.
The Help to Buy Isa offers a 25 per cent government bonus to a maximum value of £3,000 on money saved but the additional funds can only be released at completion of the property transaction and not used towards a deposit.
Janice Barber, mortgage manager at Yorkshire Building Society, said: "We know how tough it can be for first-time buyers to get on to the property ladder so we’re committed to looking at ways we can help them get a place of their own.
"Our Help to Buy Isa: Mortgage Exclusive range gives would-be homeowners who have demonstrated a commitment to saving for their first home a little extra help by offering a preferential rate and the potential for smaller deposits."
Last month the Help to Buy Isa came under fire for "misleading" savers on the circumstances the government bonus could be used under.
OneFamily claimed the scheme had delayed 45,000 property sales as a result of savers not being aware the funds could not be used towards a deposit, leading to 15 per cent having to borrow money from family and friends to make the initial downpayment.