The lender has also launched an exclusive five-year fixed rate remortgage deal at 3.45% with no reservation or completion fee, free standard valuation, free legal fees or £500 cashback and 10% overpayments per annum.
Another five-year buy-to-let deal is offered at a fixed rate of 3.25% with £199 reservation fee and £800 completion fee. This product also includes 10% overpayments per annum, and is available to future investors.
Steve Carruthers, head of mortgage distribution at Newcastle Intermediaries, said: “I’m pleased to announce a number of rate reductions across our whole buy-to-let range but in particular our popular five- year products. We know that whilst the purchase market has shrunk over recent years our re-mortgage exclusive product will be popular for existing investors looking for long term rate security.”