Molo launched to market in November 2018.
Molo has increased the maximum loan size on their BTL offering from £250,000 to £500,000 for eligible customers.
The UK's first fully digital mortgage lender offers a a maximum of 75% LTV for up to loans up to £300,000.
For loans between £300,000 and £500,000, Molo offers an LTV of up to 65%.
Francesca Carlesi, chief executive at Molo, said: "Our aim is to be accessible to all UK borrowers.
"This change is yet another step forward in bettering our consumer offering and opening up fast, simple, fair, fully-digital lending to those looking for a higher buy-to-let loan amount."