The Comparison Rate Trap: Why That Low Car Loan Ad Is Lying to Your Face

Two Numbers. Only One Tells the Truth.

Every car loan advertised in Australia is legally required to display two rates side by side: the advertised rate (sometimes called the nominal rate) and the comparison rate. Most Australians focus on the first one. That's exactly what lenders are banking on.

The advertised rate tells you the base interest charge — nothing else. It does not include establishment fees, ongoing account-keeping fees, or other charges that quietly add up over the life of your loan. The comparison rate rolls those fees in and gives you a single, more honest number that reflects what borrowing actually costs you per year.

Australian law requires lenders to display the comparison rate alongside the advertised rate for car loans. So why don't more people use it? Because the advertised rate is almost always the smaller, sexier number — and that's the one that ends up on the big sign at the dealership.

Here's What the Gap Actually Costs You

The difference between these two numbers isn't just academic. Consider this: a loan advertised at 5.99% p.a. with a $600 establishment fee and a $15 monthly account-keeping fee can carry a comparison rate of 7.2% p.a. — that's the real cost, and it's the figure worth comparing. On a $30,000 car loan over five years, the gap between a rate of 6.50% and 9.95% adds up to roughly $3,000 in extra interest across the life of the loan. That's not a rounding error. That's a holiday, a year's worth of rego and insurance, or a solid emergency fund.

Right now, as of 1 June 2026, the average fixed-term personal loan rate — including car loans — sits at around 9.06% p.a. according to Reserve Bank of Australia data. Yet lenders keep advertising rates starting well below that. The reason? Those headline rates are reserved for the best-case applicant: excellent credit score, brand-new car, stable PAYG employment, possibly a property owner. The reality for most borrowers sits well north of what's on the sign.

What Rate Are You Actually Likely to Get?

As of mid-2026, the average secured car loan rate for prime borrowers is around 7.48% p.a., while the overall average across all borrower types tracks closer to 8.92% p.a. For borrowers with below-average credit, the average rate available on a car loan has been reported at around 13.74% p.a., with some lenders charging 20%–25% p.a. in the highest-risk scenarios.

Several factors shape the rate you're actually offered:

• Your credit score — the biggest single factor. Lenders reserve their sharpest rates for borrowers with excellent credit histories.
• Vehicle age — new cars attract lower rates because they hold their value and give lenders stronger security. Cars older than seven years often can't be financed on a secured basis at all, which pushes you into higher-rate unsecured territory.
• Loan type — a secured car loan (where the car serves as collateral) consistently attracts lower rates than an unsecured personal loan.
• Loan term — some lenders charge higher rates on longer loan terms. A lower monthly repayment over seven years can end up costing significantly more in total interest than a five-year term.
• Employment type — PAYG employees typically get better rates than the self-employed or those on irregular income.

The uncomfortable truth? Less than a third of Australians — just 30% — say they feel confident comparing and selecting a car loan without help from a professional. And 28% of people who've already taken out a car loan say they regret their choice. Of those, nearly half say their main regret was relying on the salesperson at the dealership to guide them on finance.

The Dealer Finance Problem

Dealer finance is convenient — you pick your car and sort your loan in the same room on the same day. But convenience has a price. Dealership finance has been consistently flagged as involving higher fees and less transparency around rates and charges. Some borrowers also report poor post-sale support. The dealer isn't your finance adviser. They earn a commission or margin on the finance they sell you, which means their incentive is not always aligned with getting you the best deal.

Here's the move that changes the dynamic: get pre-approved financing before you walk onto the lot. When you already have an approved rate in your pocket, you can negotiate on the car's price — not get distracted managing two negotiations at once while someone hands you a coffee and tells you it's a great deal.

The EV Angle: A Timely Wrinkle Worth Knowing

If you're considering an electric vehicle, there's a separate — and time-sensitive — finance consideration at play right now. The Federal Government's Fringe Benefits Tax (FBT) exemption for EVs purchased through novated leases is being wound back. The full exemption for eligible battery electric vehicles continues until 31 March 2027 — but from 1 April 2027, a $75,000 price cap kicks in, meaning only EVs at or below that value will retain the full exemption. From 1 April 2029, the full exemption ends entirely and is replaced with a 25% discount. Plug-in hybrids already lost their eligibility back in April 2025 and won't be reinstated.

What this means practically: if you're an employee considering an EV through salary packaging, the current window — where you can structure the full finance and running costs from pre-tax dollars with zero FBT — is open, but not for much longer. The key deadline to be aware of is 31 March 2027. Speak to a financial adviser or registered tax agent about how this applies to your situation before making any decisions.

For context on how fast things are shifting: EVs hit a record 16.4% of all new car sales in Australia in April 2026 — roughly one in every six vehicles sold. EV sales were up 157.2% year-on-year that month, while petrol vehicle sales tumbled by 30.1% over the same period. The market is moving fast, and the finance rules are moving with it.

The Green Car Loan Discount — Worth Checking

One genuinely useful piece of news for EV buyers who aren't going through a novated lease: green car loans. Around 40% of lenders currently offer discounted car loan interest rates specifically for EVs and plug-in hybrids. The lowest green car loan rates available right now start from under 5.54% p.a. comparison rate for eligible electric vehicles — meaningfully below the rates available for equivalent petrol cars. If you're buying an EV outright or through a standard car loan, it's worth specifically asking about green loan products rather than assuming the rate you're offered is the only one available.

What to Actually Do Before You Sign Anything

• Always compare the comparison rate — not just the advertised rate. If a lender won't tell you the comparison rate upfront, walk away.
• Check if the comparison rates are like-for-like — by law, comparison rates are calculated on a standardised example (usually a $30,000 loan over five years). Different loan amounts or terms will produce a different comparison rate, so the fine print matters.
• Watch out for fees buried in the structure — establishment fees, monthly account-keeping fees, early exit fees, and balloon payment structures can all significantly change the true cost of a loan.
• Get personalised quotes from multiple lenders — the advertised rate is for the best-case borrower. Your actual rate depends on your credit profile, income, and vehicle choice. Get real quotes, not brochure rates.
• Consider your loan term carefully — a longer term lowers your weekly payment but increases total interest paid. Make sure you know the total cost of the loan over its full life, not just the monthly repayment.

Where Milam Fits In

Standard car finance — whether it's a dealer loan, a bank loan, or a traditional GFV product — is built around one thing: collecting repayments. At the end of the loan, the asset has depreciated, and you've paid interest on it the whole way. You get nothing back.

Milam does it differently. Our customers get lower weekly repayments and an equity payout when they return the car — instead of walking away empty-handed like they would on a standard Guaranteed Future Value loan. It's a structure designed to actually put money back in your pocket, not just extract it.

Understanding the comparison rate — and what it reveals about the true cost of finance — is the first step toward making a smarter decision about how you fund your next car. Don't let a small number on a big sign make a $3,000 decision for you.

This article contains general information only and does not constitute financial advice. Speak to a financial adviser or registered tax agent before making any finance or tax decisions.