Tracker mortgages
A tracker rate moves in step with the Bank of England base rate, plus a fixed margin. You benefit immediately if the base rate falls — and pay more if it rises. It suits borrowers who expect stable or falling rates and can absorb some volatility.
How a tracker works
A tracker is a variable rate mathematically tied to an external index — almost always the Bank of England base rate — plus a fixed percentage. If the base rate is 4% and your margin is 0.75%, you pay 4.75%, and your rate moves penny-for-penny with the base rate.
Unlike the lender’s standard variable rate, a tracker can only move when the base rate does, not at the lender’s discretion.
| Aspect | Detail |
|---|---|
| How the rate is set | BoE base rate plus a fixed margin (e.g. 4% + 0.75% = 4.75%) |
| The margin | Fixed for the product term — only the base-rate element moves |
| If the base rate rises | Your rate rises penny-for-penny |
| If the base rate falls | Your rate falls penny-for-penny |
| Early repayment charges | Many have none; some apply during an initial period |
| Best suited to | Confident borrowers expecting the base rate to hold or fall |
Who it suits
Financially confident borrowers who expect the base rate to hold or fall, and who can comfortably absorb an increase if they’re wrong. Many trackers have no early repayment charges, adding flexibility.
- Immediate benefit if the base rate falls.
- Often no early repayment charges, so you can switch freely.
- Transparent — moves only with the base rate.
The risk
The flip side of flexibility is exposure: if the base rate climbs, so does your payment, with no ceiling unless you choose a capped product. For contractors who value certainty, a fixed rate may sit better.
Tracker, answered
Is a tracker cheaper than a fixed rate?+
Sometimes at the outset, but it can become more expensive if the base rate rises. You’re trading certainty for the chance of lower payments — and the risk of higher ones.
Can the lender change my tracker margin?+
No. The margin above the base rate is fixed for the product term. Only the base rate element moves, which is what makes a tracker more transparent than an SVR.
Do trackers have early repayment charges?+
Many don’t, which is part of their appeal — but some do during an initial period. Always check the specific product before assuming you can leave penalty-free.