The new rates will include a two-year fixed rate at 2.34% at 75 per cent LTV with a £995 fee and a two-year fixed rate at 3.14%at 80% LTV with no fee.
Other changes include cuts to their existing Mover two-year fixed rate at 2.29% at 75% LTV with £995 fee.
SFI has also launched an exclusive for current account customers, a two-year fixed rate at 2.24% at 75% LTV with £995 fee.
Other exclusives for Current Account customers include a two-year fixed rate Homebuyer Plus at 2.34% at 75% LTV with a £995 fee.