James Morrish
Mortgages

Remortgaging: When and Why to Switch Your Mortgage

2026-04-05
Remortgaging: When and Why to Switch Your Mortgage

If you've had your mortgage for a while, remortgaging—switching to a new deal with a different lender or a new deal with your current lender—might save you significant money. But it's important to understand when it makes sense and what the process involves.

The most common reason to remortgage is to get a better interest rate. If your current fixed-rate deal is ending and new rates have fallen, or if you're on a variable rate that's risen, switching could reduce your payments. Even a 0.5% reduction on a £200,000 mortgage saves around £1,000 per year.

You should start exploring remortgage options three to six months before your current deal ends. This gives you time to shop around without pressure. Many lenders allow you to lock in a rate in principle before your deal matures, so you know exactly what your new payment will be.

Remortgaging isn't free. You'll typically pay:

  • Valuation fees (usually £150–£500)
  • Legal and conveyancing fees (typically £500–£1,500)
  • Broker fees if using a mortgage broker (often included in the rate)
  • Possible early repayment charges from your current lender

Calculate whether the savings from a better rate will outweigh these costs. Generally, if you're saving more than 0.5% and staying in the property for at least two years, remortgaging makes financial sense.

Other reasons to remortgage include: releasing equity to fund home improvements or other expenses, shortening your mortgage term to pay it off faster, or switching from a variable rate to a fixed rate for payment certainty.

Your home's value affects remortgage options. If property prices have risen since you bought, you may now have more equity, potentially accessing better rates. Conversely, if values have fallen, you might have less flexibility.

Your financial situation matters too. If your credit score has improved, you'll qualify for better rates. If it's deteriorated, you might face higher rates or rejection. Similarly, if you've paid off significant debt, you'll be in a stronger position.

The application process is similar to your original mortgage. You'll need to provide income verification, bank statements, and proof of identity. Your new lender will arrange a valuation to confirm the property's current value.

One often-overlooked consideration: check your current mortgage agreement for early repayment charges. These can be substantial and might wipe out your savings. However, many lenders offer a redemption penalty-free period before the fixed rate ends.

Be cautious of lenders offering unusually low rates—they may have hidden fees or strict lending criteria. Work with a whole-of-market mortgage broker who can compare options across the market and ensure you're getting a genuine good deal.

Remortgaging can be an excellent financial move, but only if you've done the maths and understand all the costs involved.