The changes apply across the lender's range of buy-to-let purchase plans for UK residents.

The new products follow recent criteria changes at Aldermore.

The rate cuts span residential, buy-to-let and holiday let products.

Two and five-year fixed rates in its core residential range have seen the largest reductions.

The Society has also shortened the time from completion to payment of the cashback from 14 days to 5 days.

Rates have reduced by up to 0.31%.

The lender has joined the sub-4% mortgage market following its latest round of rate reductions.

The biggest reductions are to two-year fixed rates, with other products in the range seeing increases of up to 0.17%.

Atom has reduced rates across its residential mortgage range by up to 0.15%.

Rates have reduced by up to 0.46%.