The Guide to Usable Equity
Find out how much you could actually borrow against your home
Most homeowners have more equity than they realise, and less of it available than they think. This free guide explains the difference and what it means for you.
Equity is the part of your home you own outright. Usable equity is the part a bank will actually lend against — and the two numbers are rarely the same. This guide explains how usable equity is worked out, what the banks will and won't count, and why new builds change the maths in your favour.
Free to download. Takes 30 seconds to request.
Why This Guide
The equity in your home is probably your largest asset, and the one you understand least
Most people know roughly what their house is worth and roughly what they owe. The gap between those two numbers feels like the money available to them. It isn't — banks lend against a proportion of your home's value, not all of it, and that proportion changes depending on what you're buying.
That's why two people with identical equity can end up with very different borrowing capacity. This guide walks through how the calculation works, what the banks are actually assessing, and what's realistically available to you as a starting point.
Usable Equity Calculator
Find out the level of equity within your home, how much of your equity is usable, and how much you could borrow to buy an investment property.
In New Zealand, if you are looking at buying a new build property, banks allow you to borrow up to 80% of your owner-occupied home value minus your current mortgage balance.
Your Usable Equity Breakdown
Here is your estimated borrowing power calculated against an 80% bank LVR rule.
Important — this is not financial advice
This calculator is for general information only. Usable equity is calculated at 80% of your home value minus existing debt. Serviceability and lending approval depend on your full financial situation and income.
Want to Better Understand Your Usable Equity?
Schedule a personalised strategy call with our Director, Hamish Cowan, to review your usable equity results.
Book Your Free Clarity Call →How Banks Calculate Usable Equity
A common misconception is that banks allow you to take 80% of your remaining home equity. In reality, Reserve Bank (RBNZ) guidelines dictate that a bank can lend up to 80% of your home's total value, minus what you currently owe.
Example Calculation ($1,000,000 Home Value, $500,000 Mortgage):
- Maximum 80% Lending Cap: $1,000,000 × 80% = $800,000
- Minus Existing Mortgage: $800,000 - $500,000 = $300,000 Usable Equity
If a bank lent $400,000, your total debt would rise to $900,000 ($500k mortgage + $400k equity). That would equal a 90% LVR on your home, which exceeds standard bank limits for owner-occupied properties.
What's Inside
The difference between what you own and what you can borrow, explained properly
By the time you finish reading, you'll be able to work out your own position. Here's what you'll learn:
- How to calculate your usable equity, step by step, using numbers you already have.
- What the banks will actually lend you, and why the answer changes depending on what you're buying.
- Why new builds let you borrow more, and what that means in practical terms for a deposit.
- The tax and lending advantages that only apply to new builds, explained without the jargon.
- The common myths about using equity, including the ones that stop people acting far longer than they should.
Get Your Free Guide
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Ready to see what your equity could do?
Read the guide first. When you want to put real numbers to it, book a free 15-minute Clarity Call and we'll look at your position and what's actually available to you.
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