The two-year fixed rate purchase mortgage is available from an initial rate of 5.79% with a £999 fee.
NatWest is also introducing an 85% LTV two year tracker purchase and remortgage product with an initial rate of 4.69% with a £999 fee
And it is launching a 18 month tracker purchase and remortgage product with an initial rate of 3.29%, up to 75% LTV, with a £999 fee.
However, it is also increasing the rates on two buy-to-let deals in its core range.
The two year fixed rate, 75% LTV, purchase and remortgage product will increase by 0.3% to 4.69%.
Meanwhile the two year tracker at 75% LTV for purchase and remortgage product will also increase by 0.3% to 4.19%.
Mark Bullard, head of sales, NatWest Intermediary Solutions, says: “The prevailing market conditions means that we are having to move swiftly to actively manage our product ranges so that we preserve our service standards.
“Against this backdrop I am pleased that we are able to refresh our corporate range with higher LTV mortgages.”