GST and Luxury Car Tax: How the Two Interact

For Australian businesses dealing with high-value vehicles, understanding the interaction between the Goods and Services Tax (GST) and the Luxury Car Tax (LCT) is essential. Both taxes apply to the supply and importation of cars, but they operate independently, with distinct thresholds, rates, and crediting rules. This pillar article provides a definitive reference for sole traders, small business operators, bookkeepers, and importers, explaining how GST and LCT work together, how to calculate them, and how to avoid costly mistakes.

What is GST and What is Luxury Car Tax?

GST is a broad-based consumption tax of 10% applied to most goods, services, and other supplies sold or consumed in Australia. It is collected by businesses and remitted to the Australian Taxation Office (ATO) through the Business Activity Statement (BAS). For cars, GST applies to the sale price, whether new or used, when sold by a GST-registered entity.

Luxury Car Tax (LCT) is a separate tax imposed on the supply or importation of cars whose GST-inclusive value exceeds a specific threshold. The LCT rate is 33% of the amount above the threshold. The LCT is not a GST, and it is not creditable as an input tax credit. It is designed to target high-end vehicles and is payable by the supplier or importer, but in practice, it is passed on to the consumer.

For the 2024-25 financial year, the LCT thresholds are:

These thresholds are indexed annually. The fuel-efficient threshold applies to cars that meet specific fuel consumption standards, as defined by the ATO.

How GST Applies to Car Purchases and Sales

When a GST-registered business sells a car, it must charge GST on the sale price (unless the sale is GST-free, such as certain exports). The buyer can claim an input tax credit for the GST component if the car is used for a creditable purpose (i.e., in the course of carrying on an enterprise).

For a sole trader or small business purchasing a car, the GST credit is available on the GST-inclusive price, but only for the business-use portion. If the car is used partly for private purposes, the input tax credit must be apportioned accordingly.

Example: A courier business buys a van for $55,000 (including GST). The GST component is $5,000 (1/11 of the price). If the van is used 100% for business, the business can claim a $5,000 input tax credit on its BAS. If the van is used 80% for business, the credit is $4,000.

For cars that are not luxury vehicles, GST is straightforward. However, when the car’s value exceeds the LCT threshold, the interaction becomes more complex.

How Luxury Car Tax is Calculated

LCT is calculated on the GST-inclusive value of the car that exceeds the applicable threshold. The formula is:

LCT = 33% × (GST-inclusive value – LCT threshold)

The GST-inclusive value includes the price of the car, any dealer delivery charges, and any other fees that are part of the supply, but excludes the LCT itself. For imported cars, the value includes customs value, duty, and any other costs incurred before the car is supplied in Australia.

Example: A non-fuel-efficient car is sold for $100,000 including GST. The LCT threshold is $76,950. The LCT is 33% × ($100,000 – $76,950) = 33% × $23,050 = $7,606.50. The total cost to the buyer is $107,606.50.

It is important to note that the LCT is not subject to GST. The GST is only on the car’s price, not on the LCT amount. The supplier must report and remit the LCT to the ATO, typically on the same BAS as GST.

The Interaction Between GST and LCT

GST and LCT are separate taxes, but they interact in several ways:

• GST is calculated first on the sale price of the car. The GST-inclusive price is then used to determine whether LCT applies.
• LCT is not creditable – you cannot claim an input tax credit for the LCT component. Only the GST component is creditable.
• GST credits are based on the GST-inclusive price – even if LCT is payable, the input tax credit is calculated on the car’s price (excluding LCT).
• Both taxes are reported on the BAS – GST is reported in the GST section, while LCT is reported separately (usually in the LCT section of the BAS).

For a business purchasing a luxury car, the total cost includes GST and LCT, but only the GST portion can be claimed as a credit. This means the effective cost of a luxury car for a business is higher than for a non-luxury car, because the LCT is a non-recoverable cost.

Expert Tip: Always separate the GST and LCT components in your accounting records. The LCT is not an input tax credit, so it should be treated as a non-deductible expense for GST purposes, though it may be deductible for income tax if the car is used for business.

Special Rules for Importers of Luxury Cars

Importing a luxury car into Australia triggers both GST and LCT. The GST is payable on the customs value plus any duty and transport costs, while LCT is payable on the GST-inclusive value of the car if it exceeds the threshold.

The process for importers:

1. Determine the customs value (usually the price paid for the car overseas, plus insurance and freight).
2. Add any customs duty (typically 5% for cars).
3. Calculate the GST on the sum of customs value, duty, and any other costs (e.g., transport to the point of sale).
4. Calculate the LCT on the GST-inclusive value (customs value + duty + GST + other costs) if it exceeds the threshold.

Example: An importer brings a car with a customs value of $80,000, pays $4,000 duty, and $2,000 transport costs. The GST is 10% of ($80,000 + $4,000 + $2,000) = $8,600. The GST-inclusive value is $94,600. If the car is not fuel-efficient, the LCT threshold is $76,950, so LCT = 33% × ($94,600 – $76,950) = $5,824.50. The total cost to the importer is $94,600 + $5,824.50 = $100,424.50.

Importers must be aware that the LCT is payable at the time of importation, even if the car is not sold immediately. The importer can claim a GST credit for the GST paid on import, but not for the LCT.

Exemptions and Concessions from LCT

Certain vehicles are exempt from LCT or qualify for a reduced threshold. These include:

• Primary production vehicles – cars designed for off-road use and used primarily in primary production may be exempt from LCT.
• Tourism operators – vehicles used in the tourism industry, such as stretch limousines, may be eligible for a concession.
• Emergency vehicles – police, fire, and ambulance vehicles are exempt.
• Vehicles for disabled persons – specially modified vehicles may be exempt.

To claim an exemption, the buyer must provide a declaration to the supplier, and the supplier must retain it. The ATO has specific forms and guidelines for these exemptions.

It is crucial to verify eligibility before assuming an exemption applies. Incorrectly claiming an exemption can result in penalties and interest.

GST and LCT for Second-Hand and Private Sales

When a car is sold by a private seller (not a GST-registered business), GST is not charged. However, LCT is generally not payable on second-hand private sales because the LCT was already paid when the car was first sold or imported. The LCT is a one-time tax on the first supply or importation.

If a GST-registered business sells a second-hand car, it must charge GST on the sale price, but LCT is not payable again if the car was already subject to LCT. However, if the car was never subject to LCT (e.g., it was imported privately and not previously taxed), the business may be liable for LCT on the sale.

For businesses buying second-hand cars from private sellers, no GST is charged, so no input tax credit is available. This is a common area of confusion for bookkeepers.

Business Use: Claiming GST Credits and LCT Implications

For a business that purchases a luxury car, the GST credit is available on the GST-inclusive price, but only for the business-use percentage. The LCT is not creditable, but it is included in the cost base for income tax depreciation purposes.

If the car is used for both business and private purposes, the GST credit must be apportioned. The LCT is also apportioned for income tax purposes, but not for GST.

Example: A sole trader buys a luxury car for $120,000 including GST. The GST component is $10,909.09. The LCT is 33% × ($120,000 – $76,950) = $14,206.50. The total cost is $134,206.50. If the car is used 60% for business, the GST credit is $6,545.45. The LCT is not creditable, but the business can claim depreciation on the full cost (including LCT) for income tax, subject to car limit rules.

It is important to note that the ATO has a car limit for depreciation purposes, which is $64,741 for 2024-25. The cost above this limit is not depreciable, but the LCT is still part of the cost.

GST Calculator & Tools

To simplify GST and LCT calculations, use the free tools on gstcalculatorau.com. Our suite includes a GST calculator, an LCT calculator, and a combined GST+LCT calculator for luxury cars.

Step-by-step guide:

1. Enter the car’s price (excluding GST) or the GST-inclusive price.
2. Select whether the car is fuel-efficient or not.
3. Enter any additional costs (e.g., dealer delivery, customs duty for imports).
4. The calculator will display the GST amount, the LCT amount (if applicable), and the total cost.

Sample calculation table:

Our tools are updated annually to reflect the latest thresholds and rates, ensuring accuracy for your BAS and tax planning.

Common GST Mistakes to Avoid

• Claiming input tax credit on LCT – LCT is not creditable. Only the GST component is claimable.
• Incorrectly applying the LCT threshold – Using the wrong threshold (e.g., applying the fuel-efficient threshold to a non-qualifying car) can lead to underpayment.
• Forgetting LCT on imported cars – Importers must account for LCT at the time of import, not at the time of sale.
• Not apportioning GST credits for private use – If a car is used partly privately, the GST credit must be reduced accordingly.
• Ignoring the car limit for depreciation – The ATO car limit affects income tax deductions, but not GST credits.
• Failing to report LCT on the BAS – LCT must be reported separately on the BAS, not lumped with GST.

To avoid these mistakes, maintain accurate records of all car purchases, including invoices, import documents, and usage logs. Consult a registered tax agent for complex situations.

Conclusion

Understanding the interaction between GST and Luxury Car Tax is vital for any business dealing with high-value vehicles. By knowing the thresholds, calculation methods, and crediting rules, you can ensure compliance and optimise your tax position. Use the calculators and resources on gstcalculatorau.com to simplify your calculations, and always seek professional advice for your specific circumstances.