When your current mortgage deal is ending, the choice often looks simple: stay with your existing lender or move to a new one. In practice, a product transfer and a remortgage can differ on rate, fees, paperwork, flexibility, and affordability checks. The lowest headline rate is not automatically the cheapest overall option, so compare the full cost and process before deciding.
What is the difference between a remortgage and a product transfer?
A remortgage means replacing your current mortgage with a new mortgage from a different lender while staying in the same property. Because a new lender is taking you on, the process normally involves a fresh application, affordability checks, credit checks, and a property valuation. Legal work is also usually required, although some remortgage deals include free legal services or cashback.
A product transfer mortgage keeps you with your existing lender but moves you onto another deal it offers. If you are not increasing your borrowing and there is no material change affecting affordability, a full affordability assessment may not be required under UK mortgage rules, although lenders can still apply their own eligibility requirements.
When a product transfer can make sense
The main attraction is simplicity. Your lender already holds your mortgage and has your payment history, so the switch can involve less paperwork than moving elsewhere. There is also normally no need for a new solicitor simply to transfer the mortgage between lenders.
This route can be useful if your finances have changed since you first borrowed. You may have become self-employed, reduced your hours, or built up other commitments. A new lender may assess those changes closely, while your current lender may still be able to offer a straightforward rate switch if the borrowing is not increasing.
The drawback is limited choice. You can only select from products your existing lender makes available. A convenient deal may still cost more than a competitive remortgage once the rate, product fee, incentives, and expected balance are compared.
When remortgaging can be worth the extra work
Remortgaging opens the door to a wider market. Another lender may offer a lower overall cost, a more suitable fixed period, better overpayment terms, or a fee structure that suits your balance. It can also be relevant if you want to change the term or raise additional borrowing, subject to the new lender’s criteria.
The trade-off is a fuller application. The lender may review income, spending, debts, credit history, and the property. You may also face arrangement fees, valuation costs, legal costs, mortgage exit fees, or an early repayment charge. Some lenders cover certain switching costs, so compare the actual package rather than assuming every remortgage carries the same charges.
Switch lender vs stay: compare the total cost
A useful way to compare mortgage renewal options is to look at both choices over the same period. If you are considering two-year fixed deals, compare the monthly payments, then add product fees, legal costs, valuation charges, exit fees, early repayment charges, and any cashback. Also consider the balance likely to remain when the deal ends.
For example, imagine you owe £180,000 with 20 years remaining. Your current lender offers a product transfer at 4.40%, while another lender offers 4.20%. On a repayment basis, the monthly difference is only about £19 before fees. If the remortgage has a £999 product fee and the product transfer has no fee, the lower rate may not save enough over a short deal period to justify switching. With a larger balance or bigger rate gap, the result could be different.
This is why the rate should be compared with the fees. A guide to mortgage fees and charges can help you calculate the real switching cost. It can also be useful to review loan-to-value bands, because a lower LTV may unlock better products.
Affordability, credit checks, and timing
If you switch lenders, expect a more detailed affordability process. A new lender may ask for payslips or accounts, bank statements, details of loans and credit cards, and information about regular expenditure. A guide to mortgage affordability checks can help you understand the type of information lenders commonly review.
Timing matters too. Many homeowners start comparing options several months before their existing deal ends. That creates time to review a product transfer offer, apply to a new lender if necessary, and complete legal work before falling onto the lender’s standard variable rate. Check when your current lender lets you reserve a new product.
Do not assume staying is automatically cheaper. If your lender’s rate is materially higher, convenience can become expensive. Equally, a lower remortgage rate is not automatically better if fees absorb most of the saving.
Which route may suit you?
A product transfer may suit you if
You value speed and simplicity, your current lender has a competitive deal, your circumstances make a new affordability assessment difficult, or the savings elsewhere are too small to outweigh switching costs.
A remortgage may suit you if
You can qualify comfortably with another lender, the wider market offers a clearly better overall deal, you want features your current lender does not offer, or your mortgage balance is large enough for a modest rate difference to create meaningful savings.
Questions to ask before choosing
Compare deals over the same period, check every fee, confirm whether an early repayment charge applies, and review overpayment rules. Think about likely life changes as well. If you expect to move home, change jobs, reduce income, or repay a large lump sum, flexibility may matter as much as the initial rate. A guide to remortgaging costs can help you build a realistic switching budget.
FAQ
Is a product transfer the same as remortgaging?
No. A product transfer keeps your mortgage with the same lender but moves you to another deal. A remortgage normally means taking a new mortgage with a different lender to replace your existing one.
Does a product transfer require an affordability check?
Not always. Where there is no additional borrowing and no material change affecting affordability, UK rules can allow an existing lender to switch a borrower without a full affordability assessment. The lender’s own criteria still matter.
Is remortgaging always cheaper than a product transfer?
No. A lower interest rate can be outweighed by product fees, legal costs, valuation costs, exit fees, or early repayment charges. Compare the total cost over the same period rather than choosing on rate alone.
When should I start comparing mortgage renewal options?
Starting several months before your current deal ends gives you time to compare your lender’s product transfer offers with remortgage deals elsewhere and complete any application or legal work before moving onto a standard variable rate.
Conclusion
The better choice depends on the numbers and your circumstances. A product transfer can offer a quick, low-friction route when your existing lender is competitive or a fresh affordability assessment could be difficult. Remortgaging gives you access to a wider market and may save more when another lender offers a stronger overall package. Compare rates, fees, balance, flexibility, and application requirements side by side, then choose the option that fits your situation rather than the most attractive headline rate.