NatWest will increase a select range of new business rates, including residential, first-time buyer and green mortgage deals, by up to 0.11%.
The new business rate changes will come into effect on 31 January.
Within its purchase range, there will be rate increases of up to eight basis points (bps) and 11 bps on select two- and five-year deals.
An example includes its five-year fixed purchase rate at 95% loan to value (LTV) with no fee, which will go from 5.19% to 5.3%.
High-value purchase deals will rise by 4-6bps, with one example including its two-year fixed rate with a £995 fee at 85% LTV, which will be priced at 4.85%.
On the first-time buyer side, select two- and five-year deals will go up by around 6-10bps. For instance, its five-year fixed rate purchase deal at 90% LTV with a £995 fee and £250 cashback will come to 4.8%.

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The lender’s two-year fixed rate green mortgage deal at 85% LTV will go up from 4.64% to 4.7%. It has a product fee of £995.
NatWest previously adjusted rates last week.
Santander slashes new business and product transfer rates
Santander will lower most new business and product transfer fixed rates by up to 0.28%, while a small number will rise by up to 0.12%, on 31 January.
The lender added that it was temporarily withdrawing its green remortgage range for residential and buy-to-let (BTL) customers.
Within its new business range, two-year residential purchase deals at 60%, 75%, 90% and 95% LTV along with five-year fixed rates at 75%, 85%, 90% and 95% LTV will fall by up to 0.28%.
The lender’s two-year fixed rate at 85% with no fee will decrease by 0.01%.
Most of its residential remortgage deals on two- and five-year terms will contract by around 0.1% and 10-year fixed rates at 75% LTV will decrease by the same amount.
Santander’s three-year fixed new-build purchase rate at 90% LTV will reduce by up to 0.25%.
Two-year fixed residential large loan purchase and remortgage rates at 60% LTV with a £1,999 fee will decrease by up to 0.06%.
On the BTL side, two-year fixed purchase rates at 60% and 75% LTV will fall by up to 0.16% and five-year remortgage products at 60% LTV will fall by up to 0.02%.
Santander will increase its two-year residential purchase rate at 85% LTV and its five-year fixed rate, both with a £999 fee, by 0.02%.
Five-year BTL purchase products at 60% and 75% LTV will go up by 0.06% and two- and five-year BTL remortgage deals at 75% LTV will rise by up to 0.11%.
Within its product transfer range, select residential two- and five-year fixed rates will go down by up to 0.1%, while its BTL five-year fixed rates at 60% LTV will fall by around 0.02%.
Select two- and five-year fixed BTL rates at 60% and 75% LTV will rise by up to 0.12%.
Accord Mortgages cuts BTL PT rates
Accord Mortgages will lower its BTL product transfer deal at 60% LTV by up to 0.05% from 31 January.
The lender said the current range would be withdrawn on 30 January and the new range will be available at 9am on 31 January.