What a Product Transfer Is
A product transfer (often abbreviated 'PT') is where you switch to a new mortgage product with your existing lender. No new underwrite, no valuation, no solicitor. The lender simply changes the rate on your existing balance. It is offered by every UK residential mortgage lender to customers whose fixed-rate or tracker deal is ending.
You can arrange a product transfer directly with your lender online or over the phone, or through a broker. Either way, the product range is the same — the lender's own retention products. The difference is in the advice process and whether the broker reviews the wider market for a better alternative.
What a Broker Remortgage Is
A broker remortgage is where the broker assesses your case, quotes the whole UK mortgage market, and places you with whichever lender has the best rate and criteria for you. This involves a full underwrite, a new valuation (usually free on remortgage products), a solicitor to transfer the mortgage from your old lender to the new one, and a redemption of the old mortgage.
It is slower — typically 4 to 8 weeks — but it unlocks access to the best rates across 90+ lenders, not just your existing lender's retention range.
Speed: Product Transfer Always Wins
A product transfer can be arranged in 2–4 weeks, sometimes faster. No valuation, no underwrite, no solicitor. If your current deal ends within 6 weeks and you have not started a remortgage, a product transfer may be the only way to avoid slipping to the SVR.
A broker remortgage takes 4 to 8 weeks and should ideally be started 3–4 months before your current deal ends to allow for underwriting, valuation, and legals. If you are late starting, a product transfer bridges the gap — and you can still remortgage out of it later with no early repayment charge once you are on a new fixed period.
Cost: Broker Remortgage Usually Wins
Product transfer rates are set by your lender's retention pricing team. They are typically competitive relative to the lender's new-customer range, but not the cheapest in the market. A whole-of-market broker will usually find a rate 0.2%–0.6% lower on the same LTV and case profile.
On a £250,000 balance, a 0.4% rate gap over 5 years is £5,000 of saved interest. That easily covers the arrangement fees and any broker fee associated with a full remortgage. The broker remortgage route wins on raw cost in most cases.
The exception is where your lender is pricing loyalty rates very aggressively, or where the case has some complication that means only your existing lender will offer acceptable terms. Your broker will tell you honestly if your own lender's PT offer is the best route — a whole-of-market broker is professionally required to consider all options including staying put.
Advice Protections: Broker Remortgage Wins
A product transfer arranged directly with your bank is typically sold as an execution-only or single-firm advised sale. You do not receive whole-of-market advice. If the rate you took turns out to have been unsuitable, your recourse is limited.
A broker remortgage — even if the broker ultimately recommends a product transfer with your existing lender — is always advised on a whole-of-market basis. The broker documents why the recommended product is the most suitable across the market. If it later turns out unsuitable, you have full recourse to the Financial Ombudsman.
The Hybrid: Broker-Arranged Product Transfer
A surprisingly overlooked option: a broker can arrange a product transfer with your existing lender on your behalf, with whole-of-market advice comparing it to the rest of the market. If the PT is genuinely the best option (rare but possible), the broker documents why and arranges it. You get the speed of a PT with the advice protection of a broker-reviewed decision.
Most brokers offer this at a reduced fee (or fee-free) because the work involved is lighter. It is worth asking your broker for this comparison explicitly rather than defaulting to one route or the other.
Decision Framework
Quick rules of thumb:
- Deal ending in 8+ weeks, simple case, you want best rate → broker remortgage.
- Deal ending in 8+ weeks, complex case (self-employed, adverse, BTL) → broker remortgage definitely.
- Deal ending in 4–6 weeks, you are just starting → broker-reviewed PT, or PT direct.
- Already on SVR → broker remortgage — a PT may still be available but a full remortgage may be cheaper and the broker will tell you.
- Wanting to release equity or change term materially → broker remortgage (PTs cannot usually change the balance or term).
- Very small rate gap, hate paperwork → PT direct, accepting you may be leaving money on the table.
Important: Your home may be repossessed if you do not keep up repayments on your mortgage. There will be a fee for mortgage advice. The actual rate available will depend on your circumstances. Think carefully before securing other debts against your home.