27/08/2026
Sometimes a mortgage with a higher interest rate can actually be the cheaper option.
Sounds completely backwards, but this is why I’m slightly obsessed with looking at the whole cost rather than one percentage.
Imagine you already have a large mortgage on a good fixed rate. You need another £100,000.
Remortgaging the entire balance might mean giving up that cheap rate, paying an ERC, putting the whole mortgage onto today’s pricing and potentially paying another set of fees.
Alternatively, you might leave the existing mortgage exactly where it is and raise only the additional money separately.
Yes, that smaller loan could have a higher rate. But that doesn't automatically make the overall structure more expensive.
This is why I never want to answer “What’s the cheapest rate?” until I’ve answered “What’s actually the cheapest way of achieving what you want?”
They’re not always the same thing.