Why You Should Think Twice Before Letting Banks Link Your Properties

Owning more than one property is a great way to build wealth. However, it also means important decisions about how to structure your lending, especially property investment loans. One of the biggest risks I see as a mortgage adviser is when banks link multiple properties together under the same lending arrangement.

At first glance, this may seem like the easiest option, but in reality, it’s often not in your best interests.

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Why Do Banks Link Properties?

Banks and non-bank lenders like to have as much control as possible. By cross-collateralising your loans, they reduce their own risk. In other words, they link your home, rental or even business lending together.

The problem? This setup protects the bank’s interests, not yours.

When your properties are tied together, you lose flexibility. For example, if you sell one property, the bank will often reassess your whole position. It may then make you use the sale money to pay down other loans, even if that wasn’t your plan.

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Financing Properties Together vs. Separately

Yes, it’s easier to bundle everything with one lender. But “easy” is not a good reason to do it.

Keeping properties separate gives you more control. It ensures that if you sell or restructure one property, your other properties aren’t automatically dragged into the process.

Unfortunately, many people only find out the risks when it’s too late. Over the years at Mortgage Sense, I’ve spoken to many property owners in this position. Their bank had tied up all their assets without clearly explaining the long-term consequences.

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How Bank Policy Changes Can Catch You Out

Bank and Reserve Bank policies don’t stay the same forever.

A good example is the Loan-to-Value Ratio (LVR) rules, which changed several times in recent years. At one point, investment properties could only be financed up to 70%. Meanwhile, owner-occupied homes stayed at 80%.

For borrowers with everything tied together at one bank, this created major issues. People who thought they were in a strong position were suddenly told to pay down extra debt first.

By contrast, those who kept their lending structures separate often avoided these roadblocks.

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Why Independent Advice Matters

At Mortgage Sense, my job is to put your interests first. That means making sure you understand the risks of linking your properties and helping you keep as much control as possible.

In many cases, the best approach is to spread lending across different banks or lenders. It may seem more complicated at first. Yet it often gives you more flexibility. It also protects you from policy changes and forced decisions later.

Sometimes clients choose to stick with one bank and that’s okay too, but I always make sure you know the risks. The key is to make an informed choice, not just follow the path of least resistance.

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The Bottom Line

Cross-collateralisation may suit the bank, but it rarely suits the borrower.

If you own more than one property (or are planning to), get independent advice before your lender ties everything together. The goal is simple: keep control in your hands, not the bank’s.

At Mortgage Sense, we work with multiple banks and lenders across New Zealand to ensure you get the structure that suits you best.

Get in touch today to discuss your portfolio. Together, we can make sure your lending works for you, not against you.