Porting a Co-op / Platform Mortgage – Everything You Need to Know

If you’ve got a mortgage with the Co-operative Bank (or their mortgage arm, Platform) and you’re thinking of moving home, one of the first questions you’ll ask is: what happens to my mortgage?

Do you keep your current deal, change it, or start from scratch? That’s where mortgage portingcomes in.

At Strive, we’re whole-of-market brokers with access to Co-op mortgages as well as hundreds of other lenders. That means we can help you compare Co-op’s offering with what else is out there, so you make the right move for your circumstances — not just the one that’s easiest.

What is porting a mortgage?

Porting is essentially transferring your current mortgage product from your old property to your new one. It means you keep the same rate and terms you’ve already secured, rather than paying your mortgage off and applying for something completely new.

This can be really useful if you’re mid-way through a fixed rate deal with Co-op and want to avoid early repayment charges.

Are Co-op / Platform mortgages portable?

Yes — most Co-op and Platform mortgages can be ported in principle. But it’s not quite as simple as just “carrying it across”. You’ll need to go through the process of applying again, as though it were a brand-new mortgage.

That means:

• Credit checks to make sure your financial history is still on track.

• Affordability assessments to confirm you can manage the repayments on the new property.

•  Underwriting in line with Co-op’s latest lending policy.

So while the product itself may be portable, the approval isn’t guaranteed. Your personal situation and the new property still have to fit.

What is Co-op’s porting criteria?

When you port with Co-op or Platform, you’ll go through the same checks you would on any new mortgage:

• Your income will be assessed.

• Your debts and commitments will be taken into account.

• Your credit score will be checked.

• Their underwriters will review the overall picture.

The difference is that instead of choosing a new product for the whole balance, you’re aiming to keep hold of your existing deal — unless you need to change the amount you borrow.

How does porting a Co-op mortgage work?

Here’s a simple example:

Let’s say you currently owe £150,000 on a 2.5% fixed rate until 2027. If you move house, you could transfer that £150,000 on exactly the same deal to your new property.

But what if you need to borrow more to fund the move? In that case, Co-op usually sets up a new sub-account alongside your old deal. So you might have:

• £150,000 at 2.5% fixed until 2027 (your existing product).

• £50,000 on one of Co-op’s current rates (say 4.2%), set up as a new deal.

The two parts run alongside each other, and once the fixed period ends you can usually combine them when you remortgage.

Can I borrow more when porting a Co-op mortgage?

Yes — provided you meet affordability and credit criteria, Co-op may allow you to top up your mortgage. But any extra borrowing will go onto one of their current products, which may be at a different rate to the one you’re carrying over.

Can I borrow less when porting?

You can, for example if you’re downsizing. The key thing to be aware of is that if you repay more than your annual overpayment allowance, you might trigger early repayment charges. Sometimes that’s still the right choice — especially if better deals are available elsewhere.

What if Co-op decline my porting application?

Being turned down doesn’t always mean you’re stuck. If Co-op won’t allow the port, the first step is to find out why. Sometimes it’s down to affordability or the property itself. In some cases, borrowing a bit less can make the difference.

If Co-op still won’t work, you’ve got other options. Because we’re whole-of-market, we can compare other lenders for you. Some have more flexible criteria, or may be willing to lend more. And if the issue is temporary — for example, a recent job change — it may be worth reapplying once your circumstances are more settled.

Are Co-op good mortgage lenders?

The Co-operative Bank has a unique place in the mortgage market. They’re often seen as an ethical bank, which matters to a lot of people. Their service is generally good, and many customers like the values they stand for.

When it comes to products:

• Their rates are usually average to competitive.

• Every so often they’ll offer a market-leading deal, but that’s not the norm.

• Other lenders may lend more or apply more flexible criteria, depending on your situation.

So — are they good? Yes, for the right borrower. But whether they’re right for you depends on what you need and what else is available at the time.

What are Co-op mortgage rates like?

Co-op’s rates are typically in the middle of the pack. They’re not consistently the cheapest, but they’re rarely uncompetitive either. Think of them as solid, dependable, and sometimes excellent if you catch a strong deal at the right time.

Is porting a Co-op mortgage right for you?

The answer depends on a few key factors:

• Will Co-op lend you the amount you need?

• Is your current deal still competitive compared to what’s available now?

• Would early repayment charges apply, and are they worth paying to switch?

• Would having two separate sub-accounts make future remortgaging trickier?

For some people, keeping their Co-op deal is the perfect solution. For others, it makes more sense to switch — even if it means paying a fee — because the long-term savings are greater.

Why use a broker for Co-op mortgage porting?

Going direct to Co-op limits your options. You’ll only see their products, which may or may not be the best fit for you. Working with a broker like Strive means:

• We can compare Co-op’s deals against the whole market.

• We sometimes have access to exclusive rates you won’t find direct.

• We handle the paperwork and guide you through the process.

• Most importantly, we help you decide if porting is the best move, or if switching lenders could save you more.

Final thoughts

Porting with Co-op or Platform can be a smart way to avoid fees and keep hold of a decent rate, but it isn’t always the right answer. The only way to know for sure is to weigh it up against the alternatives.

At Strive, that’s exactly what we do. We’ll compare your current Co-op mortgage with the rest of the market, explain the pros and cons, and make the whole process simple and stress-free.

👉 Thinking about moving and not sure what to do with your Co-op mortgage? Get in touch with us today — we’ll help you figure out whether to port or switch, and make sure you get the best deal for your move.

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