Start With Your Financial Goals
Before you can decide between a product transfer and a remortgage, you need to be clear about what you are trying to achieve. Different goals point towards different solutions.
If your primary goal is to minimise your interest rate:
A full remortgage gives you access to the entire market, which means you are more likely to find the absolute lowest rate available for your circumstances. Product transfer rates from your existing lender may be competitive, but they will not always match the best deals available elsewhere. If saving the maximum amount of money on interest is your top priority, casting the widest net makes sense.
If your primary goal is convenience and speed:
A product transfer wins hands down. The process is faster, simpler, and involves far less paperwork. If you value your time and do not want the hassle of solicitors, valuations, and extensive forms, a product transfer offers a much smoother experience.
If you need to raise additional funds:
If you want to release equity from your property for home improvements, debt consolidation, or other purposes, a full remortgage is usually the better route. While some lenders offer additional borrowing alongside a product transfer, the options and rates available through a remortgage are typically more favourable.
If you want to restructure your mortgage:
Changing your mortgage term, switching between repayment types, or making other structural changes generally requires a full remortgage. Product transfers tend to keep the existing terms in place and primarily change the interest rate and deal type.
Being honest with yourself about your priorities will help you focus on the option that best aligns with what matters most to you.
Assess Your Current Financial Position
Your current financial circumstances play a major role in determining which option is more practical and beneficial.
Income stability:
If your income has remained stable or increased since you took out your current mortgage, a full remortgage application should be straightforward. However, if your income has decreased, you have moved from employment to self-employment, or you have recently changed jobs and are still in a probationary period, a new lender's affordability assessment could be more challenging. In these situations, a product transfer — which often does not require a full affordability check — may be the safer option.
Credit history:
If you have maintained a clean credit record, you should be able to access competitive deals from any lender. But if you have experienced credit difficulties since taking out your current mortgage — missed payments, defaults, county court judgements, or high levels of unsecured debt — a new lender may decline your application or offer less favourable rates. Your existing lender already knows your payment history with them and may be more willing to offer a product transfer.
Existing debts and commitments:
New lenders will assess your total debt-to-income ratio as part of the affordability check. If you have taken on additional financial commitments — a car loan, credit card balances, or personal loans — this could reduce the amount you are able to borrow or affect the rates you are offered. Product transfers may not scrutinise these commitments as closely.
Property value changes:
If your property has increased in value, your LTV ratio will have improved, potentially giving you access to better rates through a full remortgage with a new valuation. Conversely, if property values in your area have fallen, a product transfer that does not require a new valuation could be advantageous.
Run the Numbers: A Practical Comparison
The most effective way to decide between a product transfer and a remortgage is to calculate the total cost of each option over the full deal period. Here is how to do it:
For the product transfer:
- Note the interest rate and deal length your lender is offering.
- Calculate the total monthly payments over the deal period.
- Add any product fees (most product transfers are fee-free, but check).
- This gives you the total cost of the product transfer.
For the remortgage:
- Note the best interest rate and deal length available from the wider market.
- Calculate the total monthly payments over the deal period.
- Add the arrangement fee (if any), valuation fee (if not included free), and legal costs (if not included free).
- Subtract any cashback offered by the new lender.
- This gives you the total cost of the remortgage.
Example comparison:
Suppose you have a mortgage balance of £200,000 with 20 years remaining. Your existing lender offers a product transfer at 4.5% with no fees. A new lender offers a remortgage at 4.1% with a £999 arrangement fee but free legals and free valuation.
Over a two-year deal period:
- Product transfer monthly payment: approximately £1,265. Total over 24 months: approximately £30,360.
- Remortgage monthly payment: approximately £1,224. Total over 24 months: approximately £29,376, plus £999 fee = approximately £30,375.
In this example, the costs are almost identical, which means the convenience of a product transfer might tip the balance. But if the rate difference were larger, the remortgage could save a meaningful amount despite the fee.
This kind of calculation is something a mortgage broker can do for you quickly and accurately, taking into account all the specific numbers relevant to your situation.