Key Takeaways
• A home equity loan lets you borrow against your home's value as a separate facility, alongside your existing mortgage.
• It differs from cash-out refinancing, which replaces your whole loan, by leaving your existing mortgage untouched.
• It can take the form of a lump-sum loan or a flexible line of credit you draw on as needed.
• It is additional borrowing secured against your home, so it suits clear purposes and careful use.
If you have built up equity in your home, a home equity loan is one way to put it to use, by borrowing against that value without disturbing your existing mortgage. It is a flexible option that suits people who want to access their equity while keeping their current home loan as is. Understanding how it works and how it differs from other ways of tapping equity helps you choose the right approach.
This guide explains what a home equity loan is, the forms it can take, how to borrow against your equity with one, and what to weigh up. Because some uses have tax implications, it is general information rather than advice, and worth confirming the details with the right professionals.
There is usually more than one way to access your equity, and the best choice depends on your situation. If you would like to compare your options with our team, we are happy to walk you through them at no cost and with no pressure.
What a Home Equity Loan Is
Let us start with what the product actually is, in plain terms.
A home equity loan lets you borrow against the equity you have built in your property, the difference between its value and what you owe, as a separate loan secured against your home, sometimes called a second mortgage. Crucially, it sits alongside your existing mortgage rather than replacing it. You keep your current home loan as it is, and add a second facility that draws on your usable equity, generally up to 80% of your home's value, minus your existing loan. The money can be used for many purposes, from renovating to other investments.
The Forms It Can Take
'Home equity loan' is a broad term, and it usually comes in one of two shapes.
A Lump-Sum Loan
The most straightforward form is a separate loan for a set amount, sometimes called a top-up or loan split. You borrow a fixed sum against your equity and repay it over time, much like any loan, with regular repayments. This suits a known, one-off need, such as a renovation of a particular size, where you know how much you want.
A Line of Credit
The other common form is a line of credit: an approved limit you can draw on as needed, rather than a single lump sum. You only pay interest on what you actually use, and you can redraw as you repay, which makes it flexible. The trade-off is that lines of credit often carry a slightly higher rate and require discipline, since the easy access can make it tempting to keep drawing rather than pay down. It suits ongoing or uncertain needs, like a staged renovation.
How It Differs From Refinancing
This is the distinction that trips people up, so it is worth making clear.
With cash-out refinancing, you replace your entire mortgage with a new, larger loan and take the difference as cash; you end up with one loan, possibly on a different rate or term. A home equity loan is different: it leaves your existing mortgage exactly as it is and simply adds a separate facility on top. The big advantage is that you keep your current home loan, and its rate, untouched, which matters if you are on a competitive or fixed rate you would rather not disturb. The trade-off is that you now have two facilities to manage, and the equity portion may carry a slightly higher rate. Which approach is better depends on your numbers, and it is worth comparing the two.
How to Borrow Against Your Equity
Borrowing against your equity with this kind of loan follows a clear path. In broad terms, the steps are:
• Work out your usable equity: roughly 80% of your home's value, minus your existing loan balance.
• Apply for the home equity loan or line of credit, which the lender assesses much like any loan.
• The lender arranges a valuation and checks that you can service the extra borrowing.
• Once approved, the new facility is secured against your home, and you can access the funds.
From there, a lump-sum loan is repaid with regular repayments, while a line of credit is drawn on and repaid more flexibly. A broker can help you work out your usable equity and choose the right facility.
The Costs and Considerations
A home equity loan is a useful tool, but it is still borrowing against your home, so go in with the full picture.
The funds are additional debt secured against your property, which increases your total borrowing and repayments, with your home as security. The equity portion, especially a line of credit, may carry a slightly higher interest rate than your main loan, and there can be establishment and valuation fees. If your total borrowing goes above 80% of your home's value, the lender's mortgage insurance may apply. You will also need to show you can service the extra repayments. And if you use a line of credit, discipline matters, so the flexibility does not quietly turn into a balance you never reduce. One more point worth checking: if you use the funds for an income-producing investment, the interest may be tax-deductible depending on how the money is used, which an accountant can confirm. Used deliberately, for a clear purpose, a home equity loan is a sound tool.
A Real-World Example: Renovating Without Refinancing
Here is a common situation where a home equity loan fits well. Treat it as a guide only.
Pete and Hannah have a $380,000 mortgage on their $720,000 home, on a competitive fixed rate they would rather not break. They want $50,000 to renovate. Rather than refinance their entire loan and risk disrupting that fixed rate, they take out a separate $50,000 home equity loan, secured against their home, while leaving their existing mortgage exactly as it is.
Their usable equity, around $196,000, easily covers it, and their total borrowing of $430,000 stays well under 80% of the home's value, so there is no lender's mortgage insurance. They repay the $50,000 home equity loan alongside their existing mortgage. By using a separate facility, Pete and Hannah fund their renovation without touching the home loan they were happy with.
Frequently Asked Questions (FAQs)
What is a home equity loan?
A home equity loan lets you borrow against the equity in your home, the difference between its value and what you owe, as a separate loan secured against your property. It sits alongside your existing mortgage rather than replacing it, so you keep your current home loan and add a second facility. The funds can be used for many purposes, such as renovating, and you generally access up to 80% of your home's value, minus your existing loan.
How is it different from cash-out refinancing?
The key difference is what happens to your existing mortgage. Cash-out refinancing replaces your whole loan with a new, larger one and gives you the difference as cash. A home equity loan leaves your existing mortgage untouched and adds a separate facility on top. Refinancing can suit you if you would get a better overall deal; a home equity loan suits you if you want to keep your current loan and rate as they are.
What's the difference between a home equity loan and a line of credit?
A home equity loan is usually a lump sum you borrow and repay over time, suited to a known, one-off need. A line of credit is an approved limit you draw on as needed, paying interest only on what you use, and redrawing as you repay. The line of credit is more flexible but often carries a slightly higher rate and requires discipline. Which suits you depends on whether your need is a fixed amount or an ongoing one.
How much can I borrow against my equity?
Generally, up to 80% of your home's value, minus your existing loan balance, is your usable equity. On a $700,000 home with a $400,000 loan, that is around $160,000. You can sometimes borrow beyond 80%, but that usually means paying lenders' mortgage insurance. You also need to be able to service the extra repayments, which the lender assesses, so your income matters as much as your equity.
Will a home equity loan affect my existing mortgage?
Not directly, and that is often the appeal. A home equity loan is a separate facility, so your existing mortgage, including its rate and term, stays exactly as it is. This is useful if you are on a competitive or fixed rate you do not want to disturb. You will, however, have an additional loan to repay alongside your mortgage, and both are secured against your home, so your overall commitments increase.
Is the interest on a home equity loan tax-deductible?
It depends on what you use the funds for. If you borrow to invest in an income-producing asset, the interest is generally tax-deductible because the purpose is to produce income. If you use it for personal purposes, such as a car or a holiday, it is not. What matters is how the money is used, not that it is secured against your home. Because tax depends on your circumstances, an accountant should confirm it.
The Bottom Line
A home equity loan is a flexible way to borrow against the value in your home without disturbing your existing mortgage. It sits alongside your current loan as a separate facility, either a lump sum you repay over time or a line of credit you draw on as needed, and it draws on your usable equity, generally up to 80% of your home's value minus what you owe. Its main appeal is keeping your existing home loan and rate exactly as they are.
As with any borrowing against your home, it adds debt and repayments, may carry a slightly higher rate, and calls for deliberate use, especially with a line of credit. Whether a home equity loan, a line of credit, or a cash-out refinance suits you best depends on your numbers and goals. If you would like help comparing the options and finding the right one, we would be glad to work through it with you.