Tracker rate mortgage schemes follow movement in the Bank of England base rate at an agreed differential.
The Tracker rate mortgage is available for a fixed period or the life time of the loan. The most common tracker rate period is 2 years, though mortgage lenders now offer 3 year, 5 year and even 10 year track rate mortgages.
If the tracker rate is for a set period of time the mortgage will revert to the lenders standard variable rate at the end of the tracker rate period.