Owner-Driver GST Guide Australia — What You Need to Know Before Your Next BAS

GST catches more Australian owner-drivers off guard than almost any other part of running their business. Not because it is complicated, but because it is easy to forget that one eleventh of every dollar you invoice is not your money.

This guide covers the basics of how GST works for owner-drivers, what you can claim back, and how to make sure you never face a BAS bill you cannot pay.

This is general information only. Always speak with a registered tax agent or accountant for advice specific to your situation.

Do You Need to Register for GST?

If your annual turnover from your trucking business is $75,000 or more you are legally required to register for GST. For most working owner-drivers this threshold is reached quickly.

Once registered you must:

Charge GST on all your taxable supplies — meaning you add 10% to every invoice

Lodge a Business Activity Statement (BAS) either monthly or quarterly depending on your turnover

Remit the GST you have collected to the ATO

Claim back the GST you have paid on eligible business expenses

If your turnover is below $75,000 you can still choose to register voluntarily, which allows you to claim back GST on your business purchases.

How GST Works on Your Transport Income

When you invoice a customer for a load, the amount you charge includes GST. This is important to understand: the GST is not your money. It is the ATO's money that you are collecting on their behalf.

Example:

You invoice a customer $2,300 for a load.

The GST component is $209.09 (which is $2,300 divided by 11).

Your actual income from that job is $2,090.91.

You must remit $209.09 to the ATO when you lodge your BAS.

If you spend that $209.09 before your BAS is due you will have to find the money from somewhere else. This is one of the most common cash flow problems for owner-drivers.

The solution is simple: as soon as you receive payment on any invoice, set aside one eleventh of it in a separate account. Do not touch it. It is not your money.

What GST Can You Claim Back?

The good news is that GST goes both ways. You can claim back the GST you have paid on eligible business expenses. This is called an input tax credit.

Common claimable expenses for owner-drivers include:

Diesel and fuel — the GST you pay at the pump

Truck parts and repairs

Tyres

Servicing and maintenance

Tolls (where GST applies)

Insurance premiums

Accounting and bookkeeping fees

Phone and communication costs used for business

Work-related equipment and tools

You cannot claim GST back on expenses that do not include GST, such as most financial services, residential rent, or wages paid to employees.

To claim input tax credits you must hold a valid tax invoice for the expense. Keep all your receipts.

How the BAS Works

Your Business Activity Statement is how you report and pay your GST obligations to the ATO. Most owner-drivers lodge quarterly. Your BAS quarters are:

Q1: 1 July to 30 September — due 28 October

Q2: 1 October to 31 December — due 28 February

Q3: 1 January to 31 March — due 28 April

Q4: 1 April to 30 June — due 28 July

On your BAS you report:

Total GST collected on your sales (called G1)

Total GST you are entitled to claim back on purchases (called 1B)

The difference is what you owe or what you will receive as a refund

If you have collected more GST than you have paid you owe the difference to the ATO. This is the normal situation for a profitable business.

The Diesel Fuel Rebate

Australian owner-drivers may also be eligible for the fuel tax credit scheme, which allows you to claim back part of the fuel excise included in the price of diesel.

The fuel tax credit rate changes regularly and the amount you can claim depends on what activity the fuel was used for. For heavy vehicles travelling on public roads the rate is lower than for off-road use.

This is separate from GST and is claimed on the same BAS. Speak with your accountant about how to maximise your fuel tax credit claim — it can add up to thousands of dollars per year for a busy owner-driver.

Common GST Mistakes Owner-Drivers Make

Not setting aside GST as it comes in. The most common and most painful mistake. Treat one eleventh of every payment as untouchable from day one.

Forgetting to account for GST when calculating job profit. Your real profit on a $2,300 job is based on $2,090.91 not $2,300. If you calculate profit on the GST-inclusive figure you are overestimating every job.

Not keeping receipts for claimable expenses. Every receipt you lose is a GST credit you cannot claim. Take a photo of every receipt the same day you receive it.

Missing BAS deadlines. The ATO charges interest and penalties on late BAS lodgements. Put your BAS due dates in your calendar at the start of every financial year.

How TruckProfit Helps With GST

TruckProfit automatically strips the GST from your revenue on every job so your profit calculation is always based on your real income. It shows you the GST component on every job and tracks your total GST liability across the quarter so you always know what you owe before your BAS is due.

There are no nasty surprises at BAS time when you can see your GST liability building in real time throughout the quarter.

Track your GST automatically with TruckProfit