Borrowing and credit
What is a tracker mortgage?
Quick definition: A tracker mortgage is a variable-rate mortgage where the interest rate tracks a reference rate, often Bank Rate, plus or minus a set margin.
At a glance
- The rate moves in line with a named reference rate.
- Many UK trackers are linked to Bank Rate.
- Monthly payments can rise or fall.
- The margin and tracker period are set by the mortgage terms.
Explain it simply
A tracker mortgage follows another interest rate. In the UK, many tracker mortgages follow Bank Rate, plus an extra percentage set by the lender. If the tracked rate goes up, the mortgage rate usually goes up. If it goes down, the mortgage rate usually goes down. This can be useful if rates fall, but it can make payments rise when rates increase. The borrower should check what the mortgage tracks and for how long.
Student explanation
Tracker mortgages are a clear example of variable-rate borrowing because the rate formula is linked to a reference rate. For example, a product might track Bank Rate plus a stated margin. The tracker period may last for a short deal period or for the life of the mortgage, depending on the product. Students should understand that a tracker is not the same as a discount rate: the tracker follows a reference rate, while a discount product usually applies a discount to the lender's variable rate.
Professional explanation
A tracker mortgage is a variable-rate mortgage with customer pricing linked by formula to a specified reference rate, commonly Bank Rate in the UK. The customer rate is typically the reference rate plus or minus a fixed margin, subject to product terms and any floors, collars or caps. Operational considerations include reference-rate changes, customer notification, payment recalculation, stress testing and treatment at the end of any product period. Tracker mortgages provide rate transparency but expose borrowers to reference-rate volatility.
UK example
A mortgage tracks Bank Rate plus 0.75 percentage points, so the borrower's payment changes when Bank Rate changes.
Why it matters
Tracker mortgages make the link between official or reference rates and household payments more direct.
Common misunderstanding
A tracker mortgage does not guarantee low payments; if the tracked rate rises, the mortgage payment can rise too.