The lender said this new step no longer assumes letting agent costs for higher rate taxpayers, enabling a clearer picture of customer expenditure and ensuring it is not impacting those not paying letting agents’ fees.
As a result, the simplified calculator will have up to two more additional questions.
However, the lender added it will still allow small landlords with three or fewer mortgaged properties, as well as portfolio landlords mortgaging with no additional borrowing, to understand how much they can borrow.
NatWest Intermediary Solutions head of sales Mark Bullard (pictured) said: “These changes further demonstrate our commitment to improving our buy-to-let proposition for brokers and customers and will ensure that as a responsible lender we guarantee that our lend amount reflects the customer’s true costs.”