Porting a mortgage
Reviewed by Alistair MacLeod – Edinburgh, Scotland
Key Takeaways
- It’s the deal, not the debt: Porting means transferring your current interest rate and terms to a new property, not the actual loan itself.
- Avoid Early Repayment Charges (ERCs): Porting is the primary way to avoid paying thousands of pounds in exit fees when leaving a fixed-rate deal early.
- Scottish Legal Context: Porting must align with the "Conclusion of Missives" and the "Date of Entry," which differ from the English exchange and completion process.
- Top-up Mortgages: If your new Scottish home is more expensive, you will likely need a "top-up" loan, often at a different (current) interest rate.
- Re-qualification is mandatory: You must pass a fresh credit check and affordability assessment; porting is never guaranteed.
- Valuation Requirements: Even with a Scottish Home Report, your lender will usually require their own valuation or a "transcript" of the Single Survey.
Table of Contents
- Porting a mortgage
- What Exactly is Porting?
- Why Porting is Popular in the Current Scottish Market
- The Process: Step-by-Step in Scotland
- Porting and the "Top-Up" Mortgage
- Downsizing and Partial Porting
- Scottish Costs to Consider
- Comparison: Porting vs. Remortgaging
- Common Pitfalls and Challenges
- Practical Example: The Edinburgh Move
- Common Questions (FAQ)
- Conclusion
Porting a mortgage
Moving home in Scotland is an exciting milestone, whether you are trading a chic West End tenement in Glasgow for a garden in the suburbs or relocating from the Highlands to the central belt. However, in a climate of fluctuating interest rates, the "mortgage question" often looms large. If you secured a record-low fixed rate a couple of years ago, the thought of losing it to move house can be painful.
This is where porting a mortgage comes into play. It is a financial bridge that allows you to take your existing mortgage product with you to your new property. For many Scottish homeowners, it is the secret to moving without triggering eye-watering Early Repayment Charges (ERCs) or losing a competitive interest rate that is no longer available on the open market.
But porting isn't as simple as changing your address on a website. It involves a full application, a new valuation, and a deep dive into the nuances of Scottish property law. This guide will walk you through everything you need to know about porting a mortgage in Scotland, from the first "Offer Over" to the moment you get your keys on the Date of Entry.
Understanding how to sell house with mortgage is the first step before deciding whether to port your current deal or start fresh.
What Exactly is Porting?
Despite the name, you aren't actually "carrying" a bag of money from one house to another. When you port a mortgage, you are technically redeeming your current mortgage and taking out a new one with the same lender, secured against the new property, while keeping the same interest rate and terms.
In Scotland, where the property market often moves quickly once missives are concluded, understanding the mechanics of porting can give you a significant advantage. It allows you to maintain your financial stability while navigating the unique aspects of the Scottish buying process.
Is Your Mortgage Portable?
Most modern fixed-rate and tracker mortgages are portable, but it is not a universal feature. You can find this out by:
- Checking your original Mortgage Illustration document.
- Looking for a "Portability" clause.
- Contacting your lender or a specialist mortgage broker.
If your mortgage is not portable, you would generally have to pay an ERC to close the account and start fresh with a new lender—a cost that can range from 1% to 5% of your outstanding loan balance.
Why Porting is Popular in the Current Scottish Market
The primary driver for porting is cost-saving. If you are midway through a five-year fixed rate at 2.5% and current market rates are hovering around 5%, porting that 2.5% rate to your new home could save you hundreds of pounds every month.
If you need to move quickly to secure a new home, working with cash house buyers can simplify the timeline and ensure your porting application isn't delayed by a broken chain.
Furthermore, porting protects you from Early Repayment Charges. On a £200,000 mortgage, a 3% ERC is £6,000. By porting, you effectively keep that £6,000 in your pocket to spend on Land and Buildings Transaction Tax (LBTT) or renovations for your new home.
The Process: Step-by-Step in Scotland
The Scottish property system has its own rhythm. Here is how porting fits into that timeline.
1. The Initial Assessment
Before you even book a viewing for a new property, speak to your lender. You need to ensure you still meet their lending criteria. Your financial circumstances may have changed since you first bought your home—perhaps you’ve started a family, changed jobs, or seen a shift in your credit score.
2. The Decision in Principle (DIP)
Just like a standard mortgage, you need a DIP. In Scotland, many sellers will not even consider an offer from you unless your solicitor can confirm you have the funds or a DIP in place. Ensure your lender knows you intend to port.
3. Finding the Property and the Home Report
In Scotland, the seller provides a Home Report. While this includes a Single Survey and a valuation, most lenders will still require their own valuation. Some lenders may accept a "transcript" of the Home Report for a small fee, but others will insist on sending their own surveyor to ensure the property is suitable security for the loan.
Porting can be more complex if your property value has dropped, so it is worth researching how to sell house negative equity Scotland if you are concerned about your loan-to-value ratio.
4. Making an Offer and Concluding Missives
Once your offer is accepted (usually via your solicitor), the legal process of "concluding missives" begins. This is the series of formal letters between solicitors that forms the binding contract. Once missives are concluded, you are legally committed to the purchase. You must ensure your mortgage porting application is fully approved before your solicitor concludes missives, or you risk being unable to complete the purchase.
5. The Date of Entry
This is the Scottish term for "completion." On this day, your solicitor will coordinate the transfer of funds. Your old mortgage is paid off, and the ported mortgage (plus any top-up) is activated on the new property.
Porting and the "Top-Up" Mortgage
What happens if you are moving from a £250,000 home to a £400,000 home? Your existing mortgage might only be £180,000.
In this scenario, you port the £180,000 at your existing low rate. For the remaining balance required, you take out a "top-up" loan with the same lender.
Crucial Note: The top-up portion will be at the lender’s current market rates, not your old rate. This means you will end up with two "sub-accounts" under one mortgage:
- Sub-account A: The ported amount at your old rate.
- Sub-account B: The top-up amount at today’s rate.
Example Table: The Cost of Moving Up
| Feature | Old Property | New Property |
|---|---|---|
| Property Value | £200,000 | £350,000 |
| Existing Mortgage (Ported) | £150,000 @ 2.5% | £150,000 @ 2.5% |
| Additional Borrowing | £0 | £100,000 @ 5.2% |
| Total Mortgage | £150,000 | £250,000 |
| Estimated Monthly Payment | £673 | £1,270 |
Note: Figures are for illustrative purposes based on a 25-year term.
Downsizing and Partial Porting
If you are moving to a cheaper property (downsizing), you might not need the full amount of your current mortgage.
If you port a smaller amount than your current loan, most lenders will charge you a pro-rata Early Repayment Charge on the difference. For example, if you have a £200,000 mortgage but only port £150,000 to your new smaller home, you will likely pay an ERC on the £50,000 you "left behind."
Scottish Costs to Consider
When porting in Scotland, you must budget for specific costs that differ from other parts of the UK.
1. Land and Buildings Transaction Tax (LBTT)
LBTT replaced Stamp Duty in Scotland. It is a tiered tax.
- Up to £145,000: 0%
- £145,001 to £250,000: 2%
- £250,001 to £325,000: 5%
- £325,001 to £750,000: 10%
- Over £750,000: 12%
If you are porting to a second home without selling your first one immediately, you will also be liable for the Additional Dwelling Supplement (ADS), which is currently 6% of the total purchase price.
2. Conveyancing Fees
A Scottish solicitor is essential. They handle the "Offer to Purchase," the "Examination of Title," and the "Registration of Title." Expect to pay between £800 and £2,000 plus VAT and outlays, depending on the complexity and property price.
3. Valuation and Transcript Fees
Even if the Home Report is perfect, your lender might charge a valuation fee (often £200–£500) or a transcript fee (£75–£150) to "re-badge" the Home Report for their own use.
Comparison: Porting vs. Remortgaging
Is porting always the best option? Not necessarily. Use this table to compare your path.
| Feature | Porting with Current Lender | Remortgaging with New Lender |
|---|---|---|
| Interest Rate | Keep your existing rate | Pay current market rates |
| ERCs | Usually £0 (if porting full amount) | Can be 1% to 5% of loan |
| Arrangement Fees | Might apply for top-ups | Usually apply for new deals |
| Lending Criteria | Must meet current criteria | Must meet new lender's criteria |
| Flexibility | Limited to one lender's products | Access to the whole market |
Common Pitfalls and Challenges
The "Double Application" Risk
When you port, you are essentially applying for a mortgage all over again. If your credit score has dipped or you have recently become self-employed, your current lender could actually decline your application to port. This can be devastating if you have already concluded missives on a new home. Always get your porting application approved before legal commitment.
Property Suitability
Lenders have strict rules about the type of property they lend on. In Scotland, this can be tricky with certain types of construction (e.g., non-traditional "Cruden" or "Whitson-Fairhurst" houses common in some post-war schemes) or flats above commercial premises (like a pub or a takeaway). Even if they gave you a mortgage on your current tenement flat, they might refuse to port it to a specific new-build or a rural cottage with a private water supply.
The Timing Gap
In a perfect world, you sell your old house and buy your new one on the same day. In reality, there can be delays. Most lenders allow a "grace period" (often 30 to 90 days) where you can sell your home, pay the ERC, and then have that ERC refunded once you complete the purchase of the new home and port the mortgage.
Practical Example: The Edinburgh Move
Let’s look at a realistic Scottish scenario.
The Situation: Fiona and Alistair own a flat in Leith worth £250,000 with a £150,000 mortgage at 2.2% fixed for another three years. They want to buy a house in Dunfermline for £300,000.
The Financials:
- Current Mortgage: £150,000.
- ERC if they switch lenders: 3% (£4,500).
- New Mortgage needed: £200,000 (assuming they use their £100,000 equity).
The Porting Solution: They port the £150,000 to the new house, keeping the 2.2% rate. They take a top-up of £50,000 at the current rate of 5.5%.
- They save £4,500 by avoiding the ERC.
- They save roughly £160 per month compared to taking the full £200,000 at the new 5.5% rate.
- Their Scottish solicitor manages the conclusion of missives to ensure the "Date of Entry" matches the redemption of the Leith mortgage.
Common Questions (FAQ)
Can I port my mortgage if I am moving to England?
Yes, most UK lenders allow porting across the border, though the legal processes (Conveyancing vs. English Land Registry) will differ significantly.
Does porting require a new solicitor?
You will need a solicitor to handle the Scottish conveyancing and the registration of the new "Standard Security" (the mortgage deed) over the new property. It doesn't have to be the same solicitor who did your first purchase, but they must be on your lender’s approved panel.
What if I need to borrow less?
As mentioned, if you borrow less, you will likely pay a partial ERC on the amount you are "paying back" early. Check with your lender for their specific "overpayment" or "under-porting" rules.
Can I port a Help to Buy (Scotland) mortgage?
Porting a mortgage that involves a Scottish Government shared equity scheme (like the old Help to Buy or LIFT) is significantly more complex. You will usually need to repay the government's equity stake from the sale proceeds before porting the remaining mortgage balance.
Conclusion
Porting a mortgage is one of the most effective tools in a Scottish homeowner’s arsenal, especially when interest rates are on the rise. It allows you to bridge the gap between your current financial reality and your future home aspirations without the sting of early repayment penalties.
However, because porting involves a full re-assessment of your finances and a fresh valuation of your new property, it is not a "guaranteed" right. Success requires careful timing, a clear understanding of the Scottish legal system, and early communication with your lender or broker.
Before you put your "For Sale" sign up in the garden, check your mortgage terms. That low interest rate might just be the most valuable thing you pack for your move.
Alistair MacLeod
Edinburgh, Scotland
Scottish property expert and writer with over 15 years of experience in the Scottish property market. Specialising in property law, tax implications, and helping homeowners navigate the complexities of selling property in Scotland.