Fixed vs tracker vs variable mortgages

Choosing the “best” remortgage type is really about matching risk and stability to your household budget. This guide explains the differences in plain English and how to decide.

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Quick answer

Fixed rates suit people who want predictable payments and prefer stability. Tracker rates can be attractive when you’re comfortable with payments moving up and down and want the chance of benefiting if rates fall. Variable rates (including SVR) can change at the lender’s discretion and are often used as a fallback rather than a planned long-term choice.

What it means

Fixed rate

Your interest rate is locked for a set period (often 2, 3, 5 years). Payments stay the same unless your lender changes other components. Many fixed deals have ERC during the fixed period.

Tracker

Your rate tracks a benchmark (commonly the Bank of England base rate + margin). If the base rate changes, your mortgage rate changes. Some trackers have ERC, others don’t.

Variable

The lender can change the rate. SVR is the most well-known variable rate and is often higher than remortgage deals. Many people try to avoid sitting on SVR for long.

Costs and what affects them

Rate stability: fixed is predictable, tracker/variable can change.
Fees: product fees and incentives can matter more than small rate differences.
ERC risk: fixed deals often have ERC; trackers vary.
Time horizon: if you plan to switch again soon, choose deals that suit your timeline.

Pitfalls to avoid

Choosing based on headlines: “lowest rate” isn’t always cheapest overall.
Underestimating rate rise risk on tracker/variable deals.
Forgetting ERC: it can block switching when a better deal appears.
Staying on SVR too long: often costly compared to remortgage products.

Checklist: picking the right type

If you need predictable budgeting, start with fixed
If you can tolerate fluctuations, consider tracker
Avoid sitting on SVR unless you have a clear short-term reason
Compare total cost (rate + fees) over the period you will keep the deal
Check ERC and your timeline before committing

FAQs

A fixed rate gives predictable payments during the fixed period, which many people find reassuring. But it can come with ERC and may cost more if rates fall significantly.

A tracker rate moves in line with a benchmark (often the Bank of England base rate, plus a margin). Payments can go up or down over time.

A variable rate can change at the lender’s discretion. It might not follow the base rate perfectly. Standard variable rate (SVR) is the most common example.

Start with your need for payment stability, your budget tolerance for rate rises, and how long you plan to keep the deal. Then compare total cost and check ERC risk.