Fuel Tax Credits: What You Can Claim and How to Calculate It

Introduction

Fuel tax credits are a valuable but often misunderstood incentive for Australian businesses. If you use fuel in your business operations—whether for a delivery van, a tractor, or a generator—you may be eligible to claim a credit that reduces your fuel costs. This guide explains what fuel tax credits are, who can claim them, how to calculate them, and how they interact with your GST obligations. Whether you’re a sole trader, a small business owner, a bookkeeper, or an importer, this pillar article provides the definitive reference you need.

What Are Fuel Tax Credits?

Fuel tax credits are a rebate on the excise duty (and equivalent customs duty) included in the price of fuel. They are designed to reduce the cost of fuel for businesses that use it in eligible activities, such as operating vehicles, machinery, or equipment. The credit is claimed through your Business Activity Statement (BAS) and is separate from GST credits.

Under the Fuel Tax Act 2006, businesses can claim a credit for the fuel tax component of the fuel they purchase, provided the fuel is used in eligible business activities. The credit is calculated based on the number of litres of fuel used and the applicable rate, which varies depending on the fuel type and the way it is used.

Expert tip: Fuel tax credits are not automatically applied. You must actively claim them on your BAS, and you need to keep accurate records to substantiate your claim.

Eligibility: Who Can Claim?

To claim fuel tax credits, you must meet several conditions:

• You must be registered for GST (or be a registered charity or other entity that is not required to be registered).
• You must use the fuel in a business activity that is eligible. This includes operating vehicles on public roads, off-road use in agriculture, mining, construction, and other industries, and use in certain marine and rail activities.
• You must have purchased the fuel in Australia and have a valid tax invoice (or a receipt that shows the fuel tax component).
• You must not be using the fuel for private or domestic purposes.

Certain activities are excluded, such as use in light vehicles on public roads (unless the vehicle is over 4.5 tonnes GVM) and use in recreational vehicles. The ATO provides a comprehensive list of eligible and ineligible uses.

Eligible Activities

Common eligible activities include:

• Operating heavy vehicles (over 4.5 tonnes GVM) on public roads
• Off-road use in agriculture, forestry, mining, and construction
• Use in generators, pumps, and other stationary equipment
• Marine and rail transport (subject to conditions)

Ineligible Activities

You cannot claim fuel tax credits for:

• Fuel used in light vehicles (under 4.5 tonnes GVM) on public roads
• Fuel used for private or domestic purposes
• Fuel that is not subject to excise or customs duty (e.g., some biofuels)

Qualifying Fuels and Uses

Not all fuels are eligible for fuel tax credits. The most common qualifying fuels are:

• Diesel
• Petrol (gasoline)
• Liquefied petroleum gas (LPG)
• Liquefied natural gas (LNG)
• Compressed natural gas (CNG)
• Ethanol and biodiesel blends (subject to conditions)

The rate of credit depends on the fuel type and the use. For example, diesel used in a heavy vehicle on public roads has a different rate than diesel used off-road. The ATO publishes quarterly rates.

Note: Rates are indexed quarterly and may vary. Always check the current ATO schedule.

Fuel Tax Credit Rates and Calculation

Calculating your fuel tax credit involves multiplying the number of litres of eligible fuel used by the applicable rate. The rate depends on the fuel type and the activity. The ATO provides a fuel tax credit calculator, but you can also do it manually.

Step-by-Step Calculation

1. Determine the total litres of each fuel type purchased for business use.
2. Identify the eligible use category (e.g., heavy vehicle on-road, off-road, etc.).
3. Find the current rate for that fuel and use from the ATO schedule.
4. Multiply the litres by the rate to get the credit amount.
5. Add up credits for all fuel types and uses.

Example: A farmer uses 1,000 litres of diesel in a tractor (off-road). The current rate is $0.419 per litre. The credit is 1,000 × $0.419 = $419.

Warning: If you use fuel for both business and private purposes, you must apportion the litres accordingly. Only the business portion is eligible.

GST Interaction and BAS Reporting

Fuel tax credits are separate from GST credits, but they interact on your BAS. When you purchase fuel, you can claim the GST credit for the GST included in the purchase price (if you are registered for GST). You can also claim the fuel tax credit for the excise component. Both are reported on your BAS, but in different sections.

On your BAS, you report:

• GST credits on purchases (including fuel) in the “GST credits” section.
• Fuel tax credits in the “Fuel tax credit” section (if you are claiming them).

It’s important to note that you cannot claim both a GST credit and a fuel tax credit on the same component of the fuel price. The GST credit applies to the GST portion, and the fuel tax credit applies to the excise portion. They are additive.

For example, if you buy diesel for $1.50 per litre (including GST), the GST component is $0.136 (since $1.50 / 11). The excise component is about $0.419. You can claim the GST credit of $0.136 and the fuel tax credit of $0.419, reducing your effective cost to $0.945 per litre.

Record Keeping and Documentation

To claim fuel tax credits, you must keep records that show:

• Date of purchase
• Quantity of fuel purchased
• Type of fuel
• Cost of fuel
• Vehicle or machinery registration (if applicable)
• Business use details (e.g., logbook, odometer readings)

You need to keep these records for at least five years. The ATO may ask for them to substantiate your claim. For vehicles, you may need to maintain a logbook to determine the business percentage if the vehicle is used for both business and private purposes.

Expert tip: Use a fuel card or a dedicated business fuel account to simplify record keeping. Always keep your tax invoices and receipts.

Claiming Fuel Tax Credits on Your BAS

You claim fuel tax credits on your BAS, usually quarterly. The process involves:

1. Calculate your total fuel tax credit for the period.
2. Enter the amount in the “Fuel tax credit” section of your BAS.
3. Include the GST credits on fuel purchases in the “GST credits” section.
4. Submit your BAS by the due date.

If you are a small business with a simpler BAS, you may be able to claim fuel tax credits using the “Simpler BAS” method, but you still need to calculate the credit accurately.

Note: Fuel tax credits are not subject to GST, so they do not affect your GST payable or refundable amount directly. They are a separate credit that reduces your overall tax liability.

Special Cases: Heavy Vehicles, Off-Road Use, and More

Certain situations have specific rules:

Heavy Vehicles on Public Roads

Vehicles over 4.5 tonnes GVM are eligible for fuel tax credits on fuel used on public roads. The rate is the same as the off-road rate for diesel, but there are conditions regarding the vehicle’s use and registration.

Off-Road Use in Agriculture and Mining

Off-road use in primary production, mining, and construction is generally eligible. You must be able to demonstrate that the fuel was used in the business activity, not for private travel.

Marine and Rail

Fuel used in commercial marine vessels and rail transport may be eligible, but there are specific rules and rates. Check the ATO guidance for these industries.

Fuel Blends

If you use blended fuels (e.g., biodiesel blends), the eligibility and rates may differ. You need to know the exact composition to calculate the credit correctly.

GST Calculator & Tools

At gstcalculatorau.com, we offer a suite of free calculators to help you manage your GST and fuel tax credit obligations. Our fuel tax credit calculator simplifies the process:

1. Select the fuel type.
2. Enter the number of litres used.
3. Choose the use category (e.g., heavy vehicle on-road, off-road).
4. Click “Calculate” to see your estimated credit.

We also provide a GST calculator for adding or removing GST from prices, and a BAS calculator to help you prepare your activity statement.

Use these tools to ensure accuracy and save time.

Common GST Mistakes to Avoid

When dealing with fuel tax credits and GST, businesses often make these errors:

• Claiming fuel tax credits without being GST registered – You must be registered for GST to claim fuel tax credits.
• Claiming GST credits on fuel without a valid tax invoice – You need a tax invoice that shows the GST amount.
• Not apportioning business vs. private use – If you use a vehicle for both, you must only claim the business portion.
• Using incorrect rates – Rates change quarterly; always use the current ATO schedule.
• Claiming fuel tax credits on ineligible fuel – For example, fuel used in light vehicles on public roads.
• Failing to keep records – Without proper documentation, your claim may be denied.

To avoid these mistakes, maintain a fuel logbook, keep all receipts, and review the ATO’s fuel tax credit guide regularly.

Conclusion

Fuel tax credits are a significant benefit for businesses that use fuel in eligible activities. By understanding the eligibility criteria, calculating your credits correctly, and integrating them with your GST reporting, you can reduce your operating costs and stay compliant. Use the tools and resources on gstcalculatorau.com to simplify your calculations and ensure accuracy. For specific advice, always consult a registered tax agent.