Simple hacks to calculate home equity for refinancing

Home equity is the portion of your property you own outright after subtracting what you still owe on the mortgage.

For paediatric nurses considering a refinance home loan, knowing your equity figure tells you whether you can access a lower interest rate, consolidate debt into your mortgage, or release funds for another property. Lenders use this calculation to decide how much they'll let you borrow and whether you'll need to pay Lenders Mortgage Insurance again.

How to calculate your current equity

Subtract your outstanding loan balance from your property's current market value. If your home is worth $650,000 and you owe $420,000, your equity is $230,000. Your equity as a percentage is calculated by dividing $230,000 by $650,000, which gives you around 35%.

Most lenders will let you borrow up to 80% of your property's value without needing to pay LMI. In the example above, 80% of $650,000 is $520,000. Since you owe $420,000, you could access up to $100,000 in usable equity while staying under that threshold.

Why the 80% threshold matters when refinancing

Lenders apply the same 80% loan-to-value ratio rule when you refinance as they do for new purchases. Going above 80% triggers LMI, which can add thousands to your refinance costs and may offset the benefit of a lower interest rate.

Paediatric nurses with profession-based LMI waivers can sometimes borrow up to 90% or 95% of their property value without paying the insurance premium. If you had a no LMI loan when you bought, check whether your new lender offers the same waiver on refinance applications. Not all lenders extend the benefit to existing homeowners, so this needs to be confirmed upfront.

When your property valuation changes the outcome

Lenders order their own valuation during the refinance application process, and the figure they use might differ from online estimates or council valuations. If the lender's valuation comes in lower than expected, your usable equity shrinks.

Consider a paediatric nurse who bought a unit off-the-plan three years ago and now wants to refinance to access equity for an investment property. The online estimate suggests the unit is worth $580,000, and the loan balance is $460,000. That would give 80% usable equity of around $4,000. But if the lender's valuation comes back at $550,000, the 80% threshold drops to $440,000, meaning there's no accessible equity at all without paying LMI.

Using equity to consolidate debt or release funds

Once you know your usable equity, you can decide what to do with it. Some paediatric nurses refinance purely to access a lower interest rate and improve cashflow. Others want to pull cash out for a deposit on another property, fund renovations, or roll high-interest debts like car loans or credit cards into the mortgage.

If you're planning to consolidate into your mortgage, the lender will add the debt amount to your new loan balance and reassess your borrowing capacity. A paediatric nurse earning $95,000 with $25,000 in car and credit card debt might find that rolling it into a mortgage at a lower interest rate reduces monthly repayments by several hundred dollars, even though the total loan amount increases.

What happens if you're coming off a fixed rate period

If your fixed rate period is ending, your equity position determines whether you can switch lenders or need to stay put. Paediatric nurses who fixed at low rates a few years ago often find their property has increased in value, giving them more equity to work with now.

A nurse who bought with a 10% deposit and fixed for three years might now have 25% equity due to price growth and principal repayments. That puts them in a position to refinance without LMI and access offset accounts or redraw facilities that weren't available on the original loan. If equity hasn't increased enough, switching lenders might require paying LMI again, which makes staying with the current lender and negotiating a lower rate the more practical option.

How equity affects your refinance strategy

Your equity percentage determines which loan structures are available. Paediatric nurses with less than 20% equity have fewer lender options and often pay higher interest rates. Those with 30% or more equity can access premium loan products, offset accounts, and lower rates reserved for low-risk borrowers.

If you're close to the 20% equity mark but not quite there, it might be worth waiting a few months and making extra repayments to push your equity over the threshold before applying to refinance. Paying down an extra $10,000 could shift your loan-to-value ratio from 82% to 78%, removing the need for LMI and opening up more competitive loan options.

Call one of our team or book an appointment at a time that works for you to review your equity position and work out whether refinancing makes sense for your situation right now.

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