Home Equity Loan vs Car Loan: Best Way to Buy a Car

To help you see the real-world impact of these two choices, let’s look at a typical $40,000 car purchase in the current Australian market.

This comparison assumes a standard interest rate of 6.5% for a mortgage top-up and 9.0% for a secured car loan.

The Cost Comparison Table

Feature	Mortgage Top-Up (25 Years)	Mortgage Top-Up (5-Year Goal)	Standard Car Loan (5 Years)
Monthly Payment	~$270	~$782	~$830
Interest Rate	6.5%	6.5%	9.0%
Total Interest Paid	$41,080	$6,950	$9,820
Total Cost of Car	$81,080	$46,950	$49,820

Key Takeaways from the Numbers

1. The "Slow Burn" Trap: If you simply add the car to your 25-year mortgage and only pay the minimum, the interest ends up costing you more than the car itself ($41,080 in interest for a $40,000 car).

2. The Sweet Spot (5-Year Mortgage Goal): If you use your home equity but manually increase your repayments to clear the car portion in 5 years, you save nearly $3,000 compared to a standard car loan.

3. Cash Flow vs. Total Cost: The car loan has the highest monthly commitment ($830), which might impact your borrowing power for other investments, but it guarantees the debt is gone in 60 months.

Professional Strategy: The "Split Loan"

In Australia, most major banks allow you to "split" your home loan. You can create a separate sub-account specifically for the $40,000 car.

• Benefit 1: It keeps the car debt separate from your home debt.

• Benefit 2: You can set a 5-year expiry on that specific sub-account so you aren't tempted to pay it off over 25 years.

• Benefit 3: It makes it much easier to track for tax purposes if the car is used for work.

Contact us if you have question or looking for any type of loan