Why Remortgage? The SVR Trap
When your fixed-rate or tracker deal ends, your lender moves you onto their standard variable rate (SVR). SVRs are typically 1.5 to 3 percentage points higher than the best available fixed rates. On a £200,000 mortgage, that difference can mean £200 to £400 extra per month — money you're handing over simply because you didn't switch.
The SVR trap catches people who forget their deal is ending, assume switching is complicated, or believe loyalty to their lender will be rewarded. It rarely is. Lenders make significant profit margins on SVR customers, which is precisely why they don't rush to remind you to leave.
Beyond avoiding the SVR, there are other good reasons to remortgage: locking in a lower rate when interest rates fall, releasing equity for home improvements, consolidating debts, or changing your mortgage term. Each has different implications and you should understand them before committing.
Product Transfer vs Full Remortgage
A product transfer is the simplest option: you stay with your current lender but move to a new deal. There's usually no valuation, no solicitor, and minimal paperwork. Many lenders now offer product transfers online in under 30 minutes. The downside is that your current lender's rates may not be the most competitive, and you can't change the mortgage amount or add a borrower.
A full remortgage means applying to a new lender entirely. This involves a fresh affordability assessment, a property valuation (often free), and conveyancing work (also often free via cashback or lender incentives). It takes 4 to 8 weeks but opens up the entire market. If your property has increased in value, you may qualify for a better loan-to-value band and therefore a lower rate.
| Factor | Product Transfer | Full Remortgage |
|---|---|---|
| Timeframe | 1 to 2 weeks | 4 to 8 weeks |
| Legal fees | None | Often free (lender incentive) |
| Valuation | Not required | Usually free |
| Rate choice | Current lender only | Whole market |
| Affordability check | Minimal or none | Full reassessment |
| Can release equity | Sometimes | Yes |
| Can change lender | No | Yes |
Costs to Factor In
Early repayment charges (ERCs) are the biggest potential cost. These apply if you leave your current deal before it ends — typically 1% to 5% of the outstanding balance. On a £250,000 mortgage, a 3% ERC means £7,500. Always check your mortgage offer or annual statement for the exact ERC schedule and when it expires.
Other costs include arrangement fees on the new mortgage (£0 to £1,999, often added to the loan), a broker fee if you use one (£0 to £500), and potentially a valuation fee (£150 to £1,500, though most lenders offer free valuations for remortgages). Some lenders also charge a deeds release fee of £50 to £300 when you leave.
The key calculation is simple: will the monthly savings over the new deal period exceed the total switching costs? A mortgage broker or comparison site can run this quickly. Be cautious about adding arrangement fees to the loan — you'll pay interest on them for the full mortgage term.
The Remortgage Process Step by Step
Start 3 to 6 months before your current deal expires. This gives you time to shop around without rushing, and most rate locks last 3 to 6 months. If rates drop before completion, many lenders will let you switch to their lower rate.
The process itself is straightforward if you have a clean credit history and stable income. Expect to provide proof of income, bank statements, ID, and details of your current mortgage. If you're self-employed, you'll typically need two years of accounts or SA302 tax calculations.
- ▸Month 1: Check your current deal's end date and any ERCs. Get your property's estimated value from online tools or a local agent.
- ▸Month 2: Compare deals across the market. Consider using a whole-of-market broker, especially if your circumstances are complex (self-employed, multiple properties, adverse credit).
- ▸Month 3: Apply to your chosen lender. They'll run a credit check, verify income, and arrange a valuation. A solicitor (often provided free by the lender) handles the legal transfer.
- ▸Month 4: Completion day — your new lender pays off the old one and the new deal begins. Your monthly payment changes from the following month.
When Remortgaging Might Not Make Sense
If you have a small remaining balance — say under £50,000 — the fixed costs of remortgaging (arrangement fees, potential ERC) may outweigh the rate savings. Run the numbers carefully. Similarly, if your credit score has deteriorated since your original mortgage, you may not qualify for competitive rates with a new lender, making a product transfer the safer bet.
Changes in your circumstances can also complicate things. If you've reduced your working hours, become self-employed, or taken on other debts, a new lender's affordability assessment may reject you even though you're comfortably making your current payments. In these cases, your existing lender's product transfer — which typically involves a lighter affordability check — may be your best route.
Finally, if you're planning to move within the next year or two, check whether your current mortgage is portable. Many fixed-rate deals can be transferred to a new property, which avoids ERCs and gives you one less thing to arrange during the move.
Key Takeaways
- ✓Never let your mortgage roll onto the SVR — set a reminder 3 to 4 months before your deal ends
- ✓Product transfers are quick and easy but limit you to your current lender's rates
- ✓Always calculate whether switching costs (ERCs, fees) are outweighed by monthly savings
- ✓Start the process 3 to 6 months early to give yourself time and lock in rates
- ✓If your circumstances have changed, a product transfer may be easier to secure than a full remortgage