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D9
Fixed Rate vs Tracker Mortgage for BTL
Rate certainty vs flexibility — the call depends on your hold horizon and ICR headroom.
Compare your options
Fixed (2yr or 5yr)
Pros
- Cashflow certainty
- Easier to budget
- Often required for tight ICR
Cons
- ERCs lock you in
- Pay a premium for certainty
- Miss falls in base rate
Best for: Tight ICR, long-term hold, or planning portfolio changes inside the term.
Tracker / variable
Pros
- Benefits from rate cuts
- Often no/low ERC
- Flexibility
Cons
- Cashflow risk if rates rise
- Lender may stress-test harder
- Can derail ICR
Best for: Strong ICR, willingness to remortgage quickly, view that rates will fall.
Worked scenarios
ICR at 5.5% with thin cover
| Option | Outcome |
|---|---|
| Fixed | 5-yr fix often the only option that passes stress. |
| Tracker | Risky — a 1% rise can break ICR. |
Decision checklist
- Get both fixed and tracker quotes in writing.
- Stress-test cashflow at +1% and +2%.
- Plan exit (ERCs, portability).
Related guides
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