What is LVR — and why does it affect your mortgage?

If you've started looking at mortgages, you've almost certainly come across the term LVR. It comes up in bank conversations, on mortgage comparison sites, and in Reserve Bank announcements. It's also the single number that has the most direct impact on how much deposit you need and what rate you'll pay.

It's not a complicated concept, but it's worth understanding properly — because it affects your costs both when you buy and while you hold.

What LVR actually means

LVR stands for Loan to Value Ratio. It's a simple calculation: your loan amount divided by the value of the property, expressed as a percentage.

LVR = loan amount ÷ property value × 100

So if you're buying a $700,000 home with a $140,000 deposit, you need to borrow $560,000. That's $560,000 ÷ $700,000 = 80% LVR.

If your deposit were $70,000 instead, you'd borrow $630,000. That's $630,000 ÷ $700,000 = 90% LVR.

The ratio tells the lender how much of the property value they're funding — and how much skin in the game you have. A lower LVR means more equity from day one, which means less risk to the bank.

Why 80% is the key threshold in New Zealand

The Reserve Bank of New Zealand sets LVR restrictions that govern how much high-LVR lending banks are allowed to do. For owner-occupiers, banks are required to keep the vast majority of their new residential lending at or below 80% LVR. They can lend above 80%, but only within a limited allocation.

This creates a practical divide in the market. Loans at 80% LVR or below are straightforward — you're in the mainstream lending pool, you get the standard rates, and there are no additional charges for your LVR position. Loans above 80% come with extra cost, because you're using a portion of the bank's restricted high-LVR allowance and the bank is carrying more risk.

That extra cost is called a low equity margin.

The low equity margin — what it costs

A low equity margin is an additional interest rate loading applied to loans above 80% LVR. The exact amount varies by lender and by how far above 80% you are, but as a rough guide:

LVR	Deposit on $100k	Typical low equity margin	Extra annual cost per $100k borrowed
80%	$20,000	None	—
85%	$15,000	~0.25%	~$213
90%	$10,000	~0.50%	~$450
95%	$5,000	~0.75–1.00%	~$713–$950

Per $100k of property value — multiply for your purchase price. Figures are indicative; margins vary by lender and change over time.

On a $700,000 purchase at 90% LVR, that's a loan of $630,000. At 0.5% margin, that's $3,150 a year in additional interest — or roughly $263 a month on top of the standard rate. It's real money, and it's worth factoring into your planning.

Some lenders offer an alternative to the ongoing margin: a one-off low equity fee charged upfront, which some banks allow you to capitalise into the loan rather than pay in cash at settlement. This can make the cost of buying at higher LVR more manageable in the short term, though it does mean you're borrowing slightly more. Not all lenders offer this — it's worth asking specifically if it applies.

LVR changes over time

Your LVR is not fixed. It moves for two reasons: you pay down the principal, and property values change.

As you make mortgage payments, your loan balance shrinks and your LVR drops. On a 30-year mortgage, the early years are heavily weighted toward interest so the principal reduction is slow — but it does move.

Property value increases can move your LVR much faster. If you bought at 90% LVR and your property increases in value by 10%, your LVR position improves even if you haven't paid down a dollar. If values fall, the reverse is true — and if your LVR rose above 80% due to a value drop, your bank could theoretically increase your margin.

Why refinancing matters once you hit 80%

If you bought above 80% LVR and are paying a low equity margin, it's worth tracking your LVR actively. Once you cross below the 80% threshold — through repayments, rising values, or both — you may be eligible to have the margin removed or to refinance to a better rate.

Banks don't always do this automatically. You may need to request a revaluation and then formally ask for the margin to be reviewed. If your lender's rate is no longer competitive, it may also be worth looking at what other banks will offer based on your improved LVR.

This is one of the things we keep an eye on for clients — particularly those who bought at high LVR a few years ago and are now in a much better equity position than when they started.

LVR and new builds

New builds are generally treated more favourably under LVR rules. Banks are often permitted to lend at higher LVR for new construction without using their restricted high-LVR allocation. If you're considering a new build, it's worth factoring this in alongside the other differences in how new build finance is structured.

The bottom line

LVR determines how much deposit you need and what you'll pay for being below the standard threshold. At 80%, you're in the mainstream and paying the best available rates. Above 80%, you're paying a premium — either as an ongoing margin or a one-off fee — for the privilege of borrowing more relative to the property value. That premium is the cost of getting into the market earlier with less saved, and for many buyers, it's a reasonable trade-off.

If you want to understand exactly where you sit and what the cost looks like for your specific numbers, get in touch. We work through this with buyers at every LVR position — and we'll give you a straight answer on what it costs and whether there's a better way to structure it.

For a practical look at how LVR connects to your deposit options as a first home buyer, see our article on how much deposit you actually need.