Choosing between a fixed and a variable mortgage is one of the most consequential financial decisions a homeowner makes, and it rarely comes with the luxury of time. Your first cheap deal is about to expire, or you are a first-time buyer staring down a wall of jargon: SVR, tracker, discount, ERC, LTV. Strip away the acronyms and the choice is genuinely simple. You are deciding who carries the risk of future interest-rate moves — you, or the lender. This guide walks through the four mortgage types with real 2026 rates, explains when each earns its keep, and ends with a five-question framework you can run in one sitting.
The four mortgage types explained
Fixed rate. A fixed-rate mortgage does exactly what the name promises: your interest rate stays the same for the entire fixed period, usually 2, 3 or 5 years and sometimes 10. If you fix at 4.5% for five years, it stays at 4.5% no matter what the Bank of England does with base rates, and your monthly payment never moves. That makes budgeting effortless and protects you completely against rate rises. The trade-offs are real, though. Fixed deals are usually priced a touch above the best short-term trackers, you are locked in for the whole period, and if rates fall you watch other people benefit while your agreed rate carries on. Leave early and early repayment charges (ERCs) bite, so a fix is a commitment as much as it is peace of mind. In the 2026 examples below, note how the 5-year fix from Nationwide comes in cheaper than both shorter fixes — a sign the market expects rates to drift down over the next few years.
| Lender | Deal | Rate (75% LTV) |
|---|---|---|
| Halifax | 2-year fixed | 4.7% |
| Nationwide | 5-year fixed | 4.3% |
| HSBC | 3-year fixed | 4.5% |
Standard variable rate (SVR). The SVR is the lender’s default rate — what you land on when your deal expires and you take no action. It is set entirely at the lender’s discretion and can change at any time, usually (but not always) moving in step with base rate. It is also emphatically the most expensive ticket in the market: Nationwide charged 6.49%, HSBC 6.75% and Halifax 6.99% in the 2026 examples. Nobody plans to pay SVR. People end up on it by inertia, and a quick remortgage before your deal ends is routinely the cheapest financial move a UK homeowner can make.
Tracker rate. A tracker mortgage follows a benchmark — normally the Bank of England base rate — plus a fixed margin. If the base rate is 4.25% and your deal is “base rate + 0.99%”, you pay 5.24%; when the base rate changes, your rate changes automatically, up or down. Trackers are transparent because the formula is public, are usually cheaper than fixed deals, and often come with no or lower early repayment charges, which suits borrowers who overpay. The risk is the mirror image of a fix: you carry the interest-rate risk, and payments rise when the base rate rises.
| Lender | Deal | Rate (75% LTV) |
|---|---|---|
| HSBC | 2-year tracker | Base rate + 0.99% = 5.24% |
| Nationwide | 2-year tracker | Base rate + 1.09% = 5.34% |
| Barclays | 2-year tracker | Base rate + 1.14% = 5.39% |
Discount rate. A discount deal charges the lender’s SVR minus a fixed percentage. If the SVR is 6.5% and your discount is 1.5%, your rate is 5.0%; if the SVR rises to 7.0%, your rate becomes 5.5%. It is cheaper than SVR and flexible, and often carries lower fees. Its weakness is transparency: a tracker’s formula is public, but a discount depends on a lender-controlled SVR that can move whenever the lender likes. Santander’s 2-year discount sat at 5.1% (SVR minus 1.4%) and Barclays’ at 5.0% (SVR minus 1.5%) in the 2026 examples — attractive rates, but ones that rise on the lender’s say-so.
The side-by-side picture
| Feature | Fixed | Variable (SVR) | Tracker | Discount |
|---|---|---|---|---|
| Rate changes | No (during fixed period) | Yes, anytime | Yes, with base rate | Yes, with SVR |
| Payment predictability | High | Low | Medium | Medium |
| Initial rate | Higher | Highest | Lower | Medium |
| Early repayment charges | Yes (usually) | Usually no | Sometimes | Sometimes |
| Lock-in period | 2-10 years | None | None | None |
| Best for | Certainty seekers | Flexibility seekers | Rate-drop bettors | Budget-conscious |
Read across that table and the pattern snaps into focus. Fixed is the insurance product — you pay a modest premium for certainty. Tracker and discount are the value products — cheaper today because you take on the risk that rates rise. SVR is the do-nothing product that nobody should pay by choice.
Where rates stand in 2026
As of mid-2026, at 75% LTV, typical rates shake out like this:
| Rate type | Typical range (75% LTV) |
|---|---|
| 2-year fixed | 4.5-5.0% |
| 5-year fixed | 4.2-4.8% |
| Tracker | 5.0-5.5% |
| Discount | 5.0-5.5% |
| SVR | 6.5-7.0% |
The key insight is the odd one at the top of the table: fixed rates are currently slightly lower than tracker and discount rates. That is unusual. It happens when lenders expect the base rate to stay flat or fall — they price fixed deals off their forecast for future rates, and a flat-to-falling outlook pushes fixed pricing down. If you believe rates are heading lower, a tracker lets you ride that fall without needing to break a fix; if you value certainty, the fixed deals are unusually good value right now.
Matching the mortgage to your situation
A first-time buyer earning £35,000 who needs to know exactly what they will pay each month while they build their career is the textbook fixed-rate customer — a 5-year fix at 4.3% removes every surprise from the biggest bill they have ever had. A high-income homeowner with savings buffer and a strong belief that the Bank of England will cut rates within 18 months is the natural tracker buyer: they take the cheaper 2-year deal and can absorb a payment increase if they are wrong. A retiree with a small £50,000 mortgage who may simply pay it off from savings might rationally stay on SVR — the amount is small, they want no lock-in, and the rate difference matters little. A self-employed worker with irregular income might choose a 2-year discount for the lower payments combined with the freedom to overpay in a good month. The pattern across all four: your income stability, your time horizon and your cash buffer decide the answer, not your opinion of where rates are going.
A five-question framework
If all of that feels like a lot, ask yourself five questions in order. Can I afford a 2% rate increase? If the honest answer is no, go fixed — the decision makes itself. Do I plan to stay more than 3 years? If yes, a longer fix usually saves money; if you are moving soon, avoid paying ERCs. Do I want to overpay significantly? If yes, a tracker or variable deal with no early repayment charges beats being locked into a fix. Do I believe rates will fall? If yes, a tracker or discount lets you benefit without breaking a deal. Do I simply sleep better knowing my payment never changes? If yes, again, fix. Most people land clearly on one side by question three.
Bottom line
There is no single best mortgage — there is the deal that matches your income, your risk tolerance, and how long you plan to stay in the home. For most first-time buyers and anyone on a tight budget, today’s unusually cheap fixed rates make the decision an easy one. For flexible borrowers who overpay and expect rates to fall, a tracker or discount deal (in that order) should win. And whatever you choose, mark the calendar: remortgage before the deal ends, because the SVR waiting on the other side — up to 6.99% at Halifax — is a price nobody should pay out of inertia.