Right now, hundreds of thousands of UK families are sitting on fixed-rate mortgage deals that are about to expire. And here's the scary bit — if you do absolutely nothing when your deal ends, your lender will quietly move you onto their Standard Variable Rate (SVR). That's their default rate, and it's almost always eye-wateringly expensive. We're talking the difference of hundreds of pounds every single month. That's a family holiday, Christmas sorted, or your energy bills covered — gone, just like that.
The good news? A little bit of action, taken at the right time, can save you a serious chunk of money. Let's walk through it together.
What Happens When Your Fixed Deal Ends?
When your fixed-rate period finishes — whether that's a two-year, three-year, or five-year deal — your mortgage doesn't just disappear. Instead, your lender automatically moves you to their SVR. As of 2024, most lenders' SVRs sit somewhere between 7% and 9%. Compare that to some fixed deals still available at around 4–5%, and you can see why acting early is so important.
On a £200,000 mortgage, moving from a 4.5% fixed rate to a 8% SVR could cost you an extra £300 or more every month. Over a year, that's £3,600 straight out of your pocket — for doing absolutely nothing. Your lender won't chase you to remind you. It's in their interest for you to stay put and pay more.
When Should You Start Looking for a New Deal?
Here's the thing most people don't realise — you can usually lock in a new mortgage rate up to six months before your current deal ends. That means you don't have to wait until the last minute, and you won't be left scrambling or stuck on that expensive SVR even for a week.
Set a reminder in your phone right now. Find out when your current deal ends (it's on your mortgage statement or your original paperwork), count back six months, and that's your start date. Even if rates drop between now and your switch date, many lenders will let you switch to a better deal before you complete — so there's very little risk in starting early.
Should You Stick With Your Current Lender or Switch?
Your current lender will often offer you a new deal — this is called a product transfer — and the advantage is that it's usually quicker and involves less paperwork. But here's the truth: they're banking on your loyalty and your laziness. Sticking with them out of convenience could mean missing out on significantly better rates elsewhere.
Always compare your lender's offer against the wider market. Use a whole-of-market mortgage broker or a comparison service to see what else is out there. The effort involved is genuinely worth it — even a 0.5% difference on a £200,000 mortgage saves you £1,000 a year.
What About Overpaying or Switching to a Shorter Term?
If you can afford it, this is also a brilliant time to think about overpaying your mortgage (most fixed deals allow you to overpay up to 10% of your balance each year without penalties). Every pound you overpay reduces the amount you owe, which means less interest overall and a shorter mortgage term. Even £50 extra a month makes a real difference over time.
Some homeowners also use the remortgage moment to switch from a 25-year term to a 20-year term, which builds equity faster. Just make sure the monthly payments are comfortably affordable — don't stretch yourself thin.
Terry's Top Tips
- Diarise your deal end date today — then count back six months. That's when to start shopping around.
- Never automatically accept your lender's renewal offer without comparing it to the rest of the market first.
- Use a whole-of-market broker — they can access deals you won't find on the high street and often charge no upfront fee.
- Check your credit score before applying — a better score means access to better rates. You can check yours for free.
- Don't panic if rates feel high right now — locking in certainty is valuable, and you can always remortgage again when rates improve.
The mortgage market can feel overwhelming, but you really don't need to navigate it alone. At TrueSaver, we help UK homeowners compare mortgage deals quickly and clearly, so you can make a confident decision without the stress. Whether your deal ends in three months or six, now is exactly the right time to start exploring your options. Head over to TrueSaver's mortgage comparison tool today and let's make sure you're not leaving thousands of pounds on the table.
