Car Depreciation in Australia: How Fast Cars Lose Value and When to Sell
Car depreciation is the drop in a car’s value over time. In Australia, most cars lose a big chunk in the first year, then keep slipping after that. If you own an older or damaged car, that slide matters. This covers typical yearly rates, what speeds up the loss, how to work out your own car’s number, and when selling makes more sense than holding on.
What Is Car Depreciation?
Think of it as the gap between what you paid and what the car is worth today. Every car has it. Age, kilometres and wear all push the value down.
Two kinds are worth knowing. Market depreciation is what buyers will actually pay. Tax depreciation is a set formula the ATO uses for work or business cars. They aren’t the same number, so this post covers both.
You’ll also see the term used for used car depreciation in Australia. The idea is the same. Older cars just lose fewer dollars each year, since there’s less value left to lose.
Car Depreciation Rates in Australia by Year
Rates vary by model, so treat any figure as a rough guide. Still, a pattern shows up. Sites such as iSelect and National Cover say a new car can lose 10% to 15% as it leaves the dealer. It can drop another 10% to 15% over the first year.
The car depreciation rate you see quoted online is usually a yearly percentage. The table below shows how two rates play out on a $35,000 car. It’s an example, not market data. One column uses a steep 25% a year. The other uses a gentler 15%.
| Year | Value at 25% a year | Value at 15% a year |
|---|---|---|
| Start | $35,000 | $35,000 |
| 1 | $26,250 | $29,750 |
| 2 | $19,688 | $25,288 |
| 3 | $14,766 | $21,494 |
| 4 | $11,074 | $18,270 |
| 5 | $8,306 | $15,530 |
The first year hurts most in dollars. After that, the yearly loss shrinks. Some models hold their value far better than others. Toyota, Mazda and Honda often get named as strong performers, though demand can change that. SUVs also tend to hold value better than sedans, while luxury cars usually lose it fastest. So, the badge on the bonnet counts, but so does the body style.
What Makes a Car Depreciate Faster
Several things speed up the loss:
- High kilometres. Driving more than about 15,000 km a year tends to pull the value down.
- Age and wear. Every year adds more tired parts.
- Poor service history. Buyers pay less when records are missing.
- Accident history. Even a repaired car can sell for less, because buyers worry about hidden problems.
- Low demand. Some models are just harder to sell.
- Modifications. Custom changes can narrow the pool of buyers.
Damage deserves a closer look. A fender bender might cost a few hundred dollars to fix. Serious damage can wipe out much of a car’s value overnight.
How to Work Out Your Car’s Depreciation
Start with market value. Search for similar cars in online listings. Match the model, year, and kilometres as closely as you can. A car depreciation calculator can give a quick estimate too, though results vary between tools.
Next, work out the percentage lost:
- Subtract today’s value from the price you paid.
- Divide that number by the price you paid.
- Multiply by 100.
Say you paid $30,000 and the car’s now worth $18,000. You’ve lost $12,000. That’s 40% of the price.
Don’t forget the kilometres, though. Two cars of the same age can sit far apart in value. One has 60,000 km on the clock. The other has 180,000 km. Buyers will pay less for the second, so match listings carefully before you trust a number.
Car Depreciation and Tax: The ATO Effective Life (Brief)
This part only applies if you use the car for work or business. The ATO usually treats a car’s effective life as eight years. You can spread the cost in two ways:
- Prime cost. You claim equal amounts each year. On a $35,000 car, that’s $4,375 a year.
- Diminishing value. You claim more early on. It uses 200% divided by the effective life, which gives 25% a year.
The ATO also caps what you can claim. Its car limit was $69,674 for the 2025 to 26 year, and it changes over time. Check the ATO car limit and thresholds before you claim. A tax agent can help with the rest.
Keep in mind that tax depreciation is only a paper figure. It doesn’t tell you what a buyer will pay. A car can be worth nothing on your tax records and still sell for a few thousand dollars. The reverse can happen too.
When Depreciation Means It Is Time to Sell
Depreciation never stops. Repair bills, though, don’t follow the same pattern. So compare the two before you spend anything.
| Situation | Likely best move |
|---|---|
| Car runs well, repair costs well under its value | Repair it, then keep or sell |
| Repair costs close to or above its value | Sell it as it is |
| Car won’t run or has serious damage | Sell to a car buyer |
Waiting seldom helps an older car. Each month, it’s worth a little less. The longer a broken car sits, the less a buyer may offer. Parts rust, batteries die, and tyres go flat. A car that ran last year might need a tow today.
Cars That Are Past Repair
If the repair bill beats the car’s value, fixing it won’t pay off. Our cash for junk car removal service buys cars like that. Pickup is free across Melbourne, and you get paid in cash when we collect.
Cars With Accident Damage
Damage hits value hard, and repairs can take weeks. Our damaged car removal service takes cars in any condition, running or not. Tell us what happened when you ask for a quote. Same-day pickup may be available, depending on your suburb.
Old Cars That Still Run
A tired car can still bring in decent money. Our guide on how to get the most cash for your scrap car in Melbourne explains how to get a better offer. Read it before you accept the first price you’re given.
Car Depreciation FAQs
How many years is a car depreciated by ATO?
The ATO usually sets a car’s effective life at eight years. That’s the period used to spread its cost for tax. Your own car may lose value faster or slower in real life. Only people who use a car for work or business can claim it, and limits apply.
What is the depreciation rate for a car?
There’s no single rate. New cars often lose around 10% to 15% as they leave the lot, and another 10% to 15% in the first year. After that, losses usually slow. Kilometres, brand, and condition all change the result, so your car may differ.
How do you calculate depreciation on a vehicle?
Pick a method. Prime cost spreads the cost evenly, so you divide the price by eight for a car with an eight-year life. Diminishing value takes a larger share early, using 200% divided by the effective life. For a rough market value, check similar listings instead.
Featured image: Image by xb100 on Freepik
