Fuel is one of those expenses that never waits politely in the background. If you run a trade business, a delivery service, a farm operation, or any business using diesel-powered equipment, you feel it every week. You fill the tank, approve the invoice, and watch cash leave the bank account again.

A lot of business owners assume that’s just the cost of getting the job done. But in many cases, part of that fuel cost may be claimable through Fuel Tax Credits, often called FTCs. This means “fuel rebate rates” becomes more than a search term. It becomes a cash flow issue.

The tricky part is that plenty of eligible businesses either don’t claim at all or don’t claim properly. That usually comes down to confusion about vehicles, work types, rates, and record-keeping.

Are You Missing Out on Fuel Tax Credits

You can be doing solid work, paying for fuel every week, lodging your BAS on time, and still miss fuel tax credits because the bookkeeping trail was never set up to catch them.

That happens a lot in small business. Fuel gets posted to a general expense account, the invoice is saved, and the transaction disappears into the month-end routine. Later, someone asks, “Did we claim the fuel tax credits on that?” and there is no clear answer.

The problem is rarely laziness. It is usually a record-keeping issue. Fuel tax credits sit in an awkward spot between tax, operations, and bookkeeping, so they are easy to miss if your Xero or MYOB file is not organised around how the fuel was used.

A good way to look at it is this. The fuel invoice tells you what you bought. Your claim depends on what that fuel did.

If that sounds subtle, it is. The same supplier account can include fuel for a heavy vehicle on public roads, an excavator on site, a generator, and a ute used partly for private travel. From a bookkeeping point of view, that is not one bucket. It is several different tax treatments hiding inside one bill.

Why business owners miss it

Some owners assume fuel tax credits are mainly for big transport operators. Others assume the software will work it out if the fuel bills are entered correctly.

It will not.

Xero and MYOB are only as good as the coding, tracking categories, job notes, and supporting records behind the entry. If the transaction just says “fuel” with no split between vehicle types or business activities, the books may be accurate for profit and loss purposes but still weak for an FTC claim.

Another snag is timing. FTCs are claimed through your BAS, so if your BAS process is rushed or unclear, credits can slip through without anyone noticing. If you want a quick refresher on that process, this plain-English guide to what an activity statement is helps connect the bookkeeping to the actual claim.

Where the confusion usually starts

Three questions usually cause the trouble:

• What used the fuel? A truck, a tractor, a generator, and earthmoving plant can all be treated differently.
• What was the fuel used for? Business use, private use, and mixed use need to be separated.
• What records prove it? The ATO generally wants to see more than a fuel total. It helps to have tax invoices, vehicle or equipment details, usage notes, and a clear method for any apportionment.

That last point is the one many businesses miss. Claiming FTCs is a bit like reconciling a bank account. The final number matters, but the working behind it matters just as much. When your records show how you got to the claim, you are in a much stronger position if the ATO asks questions later.

So if you have ever coded all fuel to one account and hoped the claim would sort itself out, you are not alone. The good news is that this can be fixed with a practical bookkeeping process, not guesswork.

Understanding Fuel Tax Credits and Eligibility

A fuel tax credit is a refund of the fuel tax included in the price of fuel used for eligible business activities.

That sounds straightforward until the same business buys fuel for a truck, a skid steer, a generator, and the owner’s ute, then tries to sort it all out at BAS time. This is why eligibility is often misunderstood. The question is not just “Did you buy fuel?” It is “Which fuel was used, by what asset, for what job, and what records prove it?”

A good way to approach FTCs is to work from the business outward. Start with the claim itself, then trace back to the bookkeeping.

Start with the business basics

Before you look at litres, rates, or vehicle types, check the foundation:

• GST registration: your business generally needs to be registered for GST.
• Business use: the fuel must be used in carrying on the business, not for private trips or personal equipment.
• BAS reporting: FTCs are claimed through your activity statement, so the bookkeeping needs to feed into that process cleanly. If that part still feels fuzzy, this guide on what an activity statement is gives a clear overview.

If those basics are not in place, even valid fuel use can be missed or claimed incorrectly.

Eligibility depends on both the fuel and the job it did

Many owners focus on the vehicle first. The ATO looks at the use as well.

Fuel may be claimable where it is used in eligible business activities such as running heavy vehicles, plant, machinery, or equipment. The rate and eligibility can change depending on whether the fuel was used on public roads or off-road, and whether the asset itself meets the rules.

That is where mixed-use businesses need to slow down and be precise. A construction business, farm, or landscaping operation might buy fuel from one supplier and pay one monthly bill, but the claim can still need to be split across several categories.

One invoice does not automatically mean one FTC treatment.

The exclusions are where many claims go wrong

Some fuel purchases do not qualify. Private use is a common example. Fuel that has already been claimed should not be claimed again. Ordinary road use in light vehicles is also much more limited than many owners expect.

This is the part I often explain like sorting laundry. From a distance, it is all just “fuel.” Up close, you need separate piles. On-road heavy vehicle use can sit in one pile. Off-road machinery use can sit in another. Private use belongs outside the claim altogether. If everything stays mixed together in the books, the BAS figure becomes an estimate, and estimates are exactly what you want to avoid if the ATO asks questions later.

What the ATO usually wants to see in practice

Clean FTC claims are built from records, not memory. In day-to-day bookkeeping, that usually means keeping:

• Tax invoices for fuel purchases
• Vehicle, plant, or equipment details so you can identify what used the fuel
• Usage notes or job records showing whether the fuel was used on-road, off-road, or partly private
• A consistent apportionment method where fuel is split across different uses

This is why FTCs should be built into your bookkeeping system early, not added as a rough adjustment at quarter end. In Xero or MYOB, that usually means setting up fuel accounts, tracking categories, or notes that separate fuel by asset or use. Done properly, your BAS claim becomes the result of your records, not a scramble to reconstruct them.

A quick sense check

Question	If yes
Are you registered for GST?	FTC may be available
Do you buy fuel for business activities?	Check the fuel use more closely
Do you run heavy vehicles, machinery, or plant?	You may have claimable fuel
Do you have both on-road and off-road use?	Your records need clear separation

If your business only uses light vehicles for ordinary road travel, the claim is often narrower. If you use fuel across machinery, heavy vehicles, generators, or site equipment, there is usually more to review, and stronger bookkeeping makes a big difference.

The Current Fuel Rebate Rates for 2026

You finish reconciling the quarter, pull up your fuel invoices, and ask the obvious question. What rate should I use?

People searching for fuel rebate rates usually want the current number. With fuel tax credits, though, the right rate depends on the job the fuel did.

As noted earlier, recent published guidance commonly cited by industry sources points to two benchmark rates used in practical examples for this period: 18.8 cents per litre for eligible heavy vehicles travelling on public roads and 46 cents per litre for eligible off-road fuel use.

Why there are two different rates

The split catches plenty of business owners off guard, especially if they buy the same diesel for several uses.

A simple way to look at it is this. Fuel used by eligible heavy vehicles on public roads usually attracts a lower credit rate. Fuel used off-road in eligible machinery, plant, or equipment usually attracts a higher rate. The reason is the Road User Charge, which reduces the credit available for certain on-road travel.

It helps to picture your fuel like stock going into two shelves in the storeroom. One shelf is public road use. The other is off-road business use. If your records mix those shelves together, the rate usually gets mixed up too.

That is why rate tables on their own are only half the story.

The rate only helps if your records separate the fuel use

A common bookkeeping mistake is to keep one fuel account and assume the BAS can be worked out later. That often creates problems because the claim depends on both date and use.

If your BAS period includes a rate change, or your diesel is used across trucks, generators, and site equipment, you need enough detail in Xero or MYOB to split those litres cleanly. In practice, that usually means coding fuel by vehicle, plant, or activity, then matching it back to invoices and usage records.

If you track road use with vehicle records, a clear ATO-style vehicle log book template can make that split much easier to support later.

Why timing matters

FTC rates are updated periodically, so copying the last quarter’s rate can create an avoidable error.

The safe approach is simple. Check the rate that applies to the BAS period, then check whether the fuel was used on-road or off-road. Once those two pieces line up, your bookkeeping software should support the claim instead of forcing you to rebuild it from scratch at lodgement time.

Use the rate that matches both the period and the activity. Good records turn that from guesswork into a routine bookkeeping step.

How to Calculate Your Fuel Tax Credit Claim

The core formula is simple:

Eligible litres × correct FTC rate = fuel tax credit claim

The hard part isn’t the maths. It’s identifying the right litres and matching them to the right rate.

Example one with a heavy vehicle on public roads

Let’s say a transport business has an eligible heavy vehicle and buys diesel for public road use during the BAS period.

The process looks like this:

1. Pull the fuel invoices for the BAS period.
2. Identify litres used by the eligible heavy vehicle.
3. Exclude any non-claimable or private use.
4. Apply the on-road FTC rate.

If the records show 1,000 eligible litres used on public roads, and the rate for that period is 18.8 cents per litre, the calculation is:

1,000 × $0.188 = $188

That gives you an FTC amount of $188 for that fuel use.

Example two with off-road machinery

Now take a construction business running an excavator on a work site. The diesel is used in eligible off-road business activity, so the higher rate may apply.

If the records show 1,000 eligible litres used off-road, and the relevant rate is 46 cents per litre, the calculation is:

1,000 × $0.46 = $460

Same litres. Different activity. Very different claim result.

That’s why broad coding like “diesel purchases” often causes problems. It hides the detail you need.

Mixed use is where many claims go wrong

A lot of businesses don’t sit neatly in one category. You might have:

• a truck travelling between sites
• a refrigerated unit using fuel as auxiliary equipment
• plant operating on-site
• a generator running off-road

Those uses may not all attract the same treatment. If one fuel source supports more than one activity, you need a reasonable way to split the litres.

A simple starting point is to use:

• vehicle-specific fuel cards
• separate equipment logs
• job or cost-centre tracking
• odometer and machine-hour records

If you need a reliable way to support vehicle-related record keeping, a practical ATO-style vehicle log book template can help tighten the evidence behind your allocations.

Here’s a useful walkthrough if you want to see the topic explained another way before setting up your own process:

A simple working method

Try this routine each BAS period:

Step	What to do
Gather	Export all fuel purchases for the period
Sort	Separate by vehicle, equipment, or job
Exclude	Remove private, duplicate, or non-eligible use
Match	Apply the correct FTC rate to each category
Total	Add the claim amounts for BAS reporting

The best FTC calculation is the one you can explain clearly six months later with invoices, logs, and coded transactions.

Recording and Claiming FTCs in Xero and MYOB

Friday afternoon. BAS is due soon, and you know the business bought plenty of diesel this period. The problem is not whether fuel was purchased. The problem is whether your records show, clearly and calmly, which litres belong in an FTC claim and why.

A valid claim often gets lost in messy bookkeeping. In practice, one of the most common reasons FTC claims are reduced, delayed, or skipped is simple. Fuel purchases sit in one general account, invoices are attached inconsistently, and nobody can trace which vehicle, machine, or job used the fuel. That creates extra work at BAS time and can raise questions later if the ATO asks how you worked it out.

What the ATO wants your records to show

A good FTC file should answer the same basic questions every time. Who bought the fuel, what asset used it, where it was used, when it was purchased, and how you decided the eligible amount.

At bookkeeping level, that usually means keeping records that show:

• Who used the fuel: vehicle, machine, or equipment ID
• What type of asset it was: heavy vehicle, plant, generator, refrigeration unit
• Where it was used: public road or off-road
• When it was purchased and used: invoice date and BAS period
• How much was eligible: litres, percentages, or a reasonable allocation method you can explain

The easiest way to think about it is this. Your accounting file is the summary, and your invoices, logs, and worksheets are the working papers behind it. The ATO does not just want a final number at 7D. It wants to see how that number was built.

A software setup that works in practice

The best setup is usually the one your team will keep up to date every week.

Start with a fuel structure that separates different treatments inside the ledger. A simple chart might include:

• Fuel on-road eligible
• Fuel off-road eligible
• Fuel non-claimable
• Fuel awaiting review

That last account is useful. It acts like a holding tray on your desk. If an invoice comes in and you are not yet sure how the fuel was used, park it there until the logs or job details are confirmed.

If your account list has become cluttered, a cleaner Xero chart of accounts structure for small business bookkeeping can make FTC coding much easier to maintain.

How to handle it in Xero

Xero works well for FTCs when you build the claim into your normal coding process instead of leaving it until BAS day.

A practical workflow looks like this:

1. Create separate fuel expense accounts for each claim treatment.
2. Capture supplier invoices with the image attached through Hubdoc or direct file upload.
3. Use bank rules only for repeat purchases with a consistent use pattern.
4. Add tracking categories for vehicles, equipment groups, or job types where needed.
5. Review transactions in the fuel awaiting review account before finalising the BAS.

Here is the part many business owners miss. A supplier is not the same thing as a fuel use. One Caltex or BP account can include road travel, off-road machinery, and non-claimable use in the same month. If the bank rule sends everything to one account automatically, the software has saved time but weakened the claim.

How to handle it in MYOB

MYOB can do the same job well, but it depends more heavily on disciplined coding from the start.

A simple process is:

• set up separate account codes for different fuel treatments
• use jobs or categories to identify vehicle groups, sites, or machinery classes
• attach invoices and supplier documents where the file allows
• reconcile fuel accounts monthly
• keep a supporting worksheet for litre splits or percentage allocations

That worksheet matters more than many people realise. The ledger tells you where the dollars were coded. The worksheet shows how you translated those purchases into an FTC claim. Together, they form a clearer story.

Getting the BAS ready

By the time you prepare the BAS, the FTC total should already be supported by coded transactions, tax invoices, logs, and your allocation worksheet. Then the amount flows to Label 7D.

A good routine is to review fuel coding monthly, not quarterly. It works like keeping the kitchen tidy while you cook. If you leave every invoice, log, and allocation until lodgement week, the claim becomes harder to check, easier to underclaim, and more stressful than it needs to be.

Maximise Your Claim and Avoid Common Mistakes

A common pattern looks like this. The fuel was bought, the work was done, and the business was entitled to claim. But by BAS time, nobody feels fully sure which litres were used on-road, which fed plant and equipment, and which should be left out. So the claim gets trimmed down "to be safe", or skipped.

That caution is understandable. Fuel tax credits can feel technical. The practical goal is simpler than many owners expect. Build a clear trail from purchase, to use, to calculation, to BAS, and keep that trail inside your bookkeeping file.

The ATO expects records that support what fuel was acquired, how it was used, and how any apportionment was worked out. That is why your Xero or MYOB setup matters so much. Good coding is only half the job. The other half is keeping the working papers, invoices, and usage notes that explain the numbers if anyone ever asks.

Mistakes that cost businesses money

Some mistakes lead to overclaiming. Others shrink a legitimate claim.

The expensive ones are usually these:

• Treating all fuel the same: One supplier account can cover heavy vehicles, off-road machinery, generators, and non-claimable use in the same month. If it all lands in one bucket, the claim becomes harder to defend.
• Claiming by purchase instead of use: Buying fuel does not automatically mean every litre attracts the same FTC treatment. The use of the fuel drives the claim.
• Using outdated rates or old worksheets: A spreadsheet from a prior period can carry the wrong rate into the current BAS.
• Forgetting auxiliary uses: Eligible fuel use can include more than the main engine in some cases, such as certain auxiliary equipment. If you never review those uses, you may leave money behind.
• Depending on memory: "Mostly used on-site" is not a method. A log, allocation worksheet, or site record is.

A practical way to tighten the claim

Use a monthly routine, not a quarterly scramble.

A good system works like labelling containers in a pantry. You do a little work as things come in, and later you can see exactly what belongs where. In FTC terms, that means coding fuel purchases by likely treatment, attaching the invoice, and updating a simple worksheet for mixed use before month-end.

For businesses using Xero or MYOB, a strong process usually includes:

• separate ledger accounts or clear categories for different fuel treatments
• attached fuel tax invoices and supplier statements where possible
• vehicle, site, or machinery logs that support business use
• a worksheet showing litre splits or percentage allocations for mixed-use fuel
• a monthly review to check rates, coding, and any unusual transactions before the BAS is prepared

That last point matters. Monthly review is where underclaims are usually prevented. It is much easier to fix one questionable fuel entry from last week than to rebuild an entire quarter from faded notes and driver recollections.

Good bookkeeping supports the claim before the BAS is lodged. It does not try to explain the claim after the fact.

What the ATO usually wants to see

Business owners often ask, "What records are enough?"

A useful answer is: enough records to tell a consistent story. If an ATO reviewer looked at your file, they should be able to follow the path from supplier invoice, to ledger coding, to allocation method, to the figure reported at Label 7D. That is why the supporting worksheet matters so much. It connects the accounting entries to actual fuel use.

If your fuel use spans vehicles, machinery, and mixed worksites, this is one area where a little structure can improve compliance and cash flow at the same time.

If you want a second set of eyes on your FTC setup, Ideal Calculations can help with a bookkeeping health check. That can be a practical way to review your Xero or MYOB file, tighten your fuel records, and make sure your BAS process supports accurate, confident claims.