At 75-80 per cent, rates now start from 1.64 per cent with a £999 fee and 1.99 per cent with no fee.
At the upper end of the scale, product transfers within the 90-125 per cent LTV tier have a rate of 3.49 per cent.
Other rates range from 2.24 per cent to 2.94 per cent for switching residential borrowers with 10 to 20 per cent equity in their homes.
The bank has also increased rates on its five-year fixed product transfer mortgages by 0.05 per cent.
These products have early repayment charges for the first five years of the term, and rates now vary between 2.44 per cent and 2.99 per cent.