Australia's Fuel Excise Cut April 2026: How It Works, What You Save, and What Happens When It Ends

The Return of the Fuel Excise Cut

On March 30, 2026, Prime Minister Anthony Albanese emerged from a national cabinet meeting with a measure Australians have seen before: a temporary 50% cut to the fuel excise. Effective April 1, the excise on petrol and diesel drops by 26.3 cents per litre for three months, until June 30.

It’s the second time in four years Australia has deployed this lever. In 2022, following Russia’s invasion of Ukraine, the same cut ran for six months. Now, with Middle East conflict sending oil prices to their highest levels in years and petrol prices above $2.50 per litre, the government has reached for the same tool again.

But this time the economic backdrop is different. Interest rates are at 4.10% after two back-to-back hikes. Inflation remains stubbornly above the RBA’s target band. And the question everyone is asking isn’t just “how much will I save at the bowser?” but “will this make things better or worse in the long run?”

This guide covers everything you need to know about the 2026 fuel excise cut: how it works mechanically, what you’ll actually save, the inflation debate, how businesses are affected, and what happens when it expires.

What Is the Fuel Excise and How Does It Work?

The Basics

The fuel excise is a flat tax applied to every litre of petrol and diesel sold in Australia. It’s collected from fuel manufacturers and importers (not directly from consumers at the bowser), but the cost is passed through to the retail price.

As of early 2026, the excise rate was approximately 53 cents per litre. This rate is indexed and adjusts twice each year (February and August) in line with CPI.

The excise is separate from the GST, which also applies to fuel. Importantly, GST is calculated on the total retail price including the excise, meaning you pay tax on top of tax. This “tax on tax” effect has been criticised for decades but remains unchanged.

Revenue Scale

Fuel excise is one of the federal government’s largest revenue streams. In the 2024-25 financial year, fuel excise raised approximately $19.8 billion, making it the third-largest source of taxation revenue after personal income tax and company tax.

The temporary 50% cut will reduce this revenue by approximately $2.55 billion over three months.

What the April 2026 Cut Means

From April 1, the excise rate drops from approximately 53 cents per litre to approximately 26.7 cents per litre. This applies to:

• Unleaded petrol (all grades including E10 and premium)
• Diesel
• LPG (proportionally reduced)

The heavy vehicle road user charge, normally approximately 32 cents per litre, has been reduced to zero for the same three-month period.

How Much Will You Actually Save?

Per-Tank Savings

Annual Equivalent (If the Cut Ran for 12 Months)

For context, if the excise cut were permanent (it isn’t), the annual savings for typical drivers would be:

Since the cut runs for only three months, divide these figures by four for the actual saving period. The average Australian driver will save approximately $79 over the three months.

But Prices Are Still High

It’s important to understand what the excise cut does and doesn’t do. It reduces the tax component of fuel prices by 26.3 cents per litre. But the underlying commodity price (driven by global oil markets) remains elevated.

With Brent crude above $US107 per barrel (compared to approximately $US70 before the Middle East conflict), the base cost of petrol before any tax is already significantly higher than normal.

Here’s a rough breakdown of what makes up the retail price of petrol in April 2026:

Without the excise cut, retail petrol would currently be approximately $2.37 to $2.67 per litre. With the cut, prices should settle between $2.10 and $2.40, depending on location and the retail cycle.

When Will You See Lower Prices at the Bowser?

Not immediately. Treasurer Jim Chalmers warned that the full benefit would take “somewhere between maybe one and two weeks” to flow through.

The delay exists because service stations hold existing fuel stock that was purchased and imported with the full excise already paid. Retailers aren’t going to absorb the cost of selling that fuel at a loss. As new fuel deliveries arrive with the lower excise, prices will gradually fall.

Energy Minister Chris Bowen reinforced this point: “The fuel in the tank at the service station might have been there for days. They’ve already paid the tax. So please, if you turn up tomorrow and the price hasn’t gone down, they’re just waiting for the new petrol with the lower tax to come in.”

Lessons From 2022

When the excise was cut in March 2022, the ACCC monitored the pass-through closely. Its report found that the excise cut had been passed on to retail prices at the vast majority of petrol stations after six weeks. However, the benefit was not always visible immediately due to the existing price cycle and retailer stock levels.

The ACCC is again monitoring the 2026 cut across capital cities and more than 190 regional locations. If you see evidence that a retailer is not passing on the cut after a reasonable period (two to three weeks), you can report it to the ACCC.

Tips for Getting the Best Price

• Use fuel price comparison apps. Apps like Petrol Spy, FuelMap, and state government fuel check tools (e.g. FuelCheck in NSW) show real-time prices near you.
• Fill up early in the price cycle. In cities like Sydney and Melbourne, petrol prices follow a regular cycle, rising sharply then falling over one to two weeks. Filling up near the bottom of the cycle (usually midweek) saves 10 to 20 cents per litre on top of the excise cut.
• Consider fuel loyalty programs. Supermarket fuel discounts (4 to 10 cents per litre) stack on top of the excise cut.
• If possible, delay filling up until mid-April. By then, most stations should have cycled through their pre-cut stock.

The Inflation Debate: Does Cutting the Excise Help or Hurt?

This is where the economics gets complicated, and where the 2026 cut differs most from 2022.

The Case That It Helps

The excise cut mechanically reduces the petrol component of the Consumer Price Index (CPI). Fuel makes up approximately 3.5% of the CPI basket. A 26.3 cent per litre reduction in fuel prices could reduce headline CPI by an estimated 0.3 to 0.5 percentage points in Q2 2026.

This matters because the RBA’s next rate decision in May will heavily weigh Q1 CPI data (released late April) and any early indicators from Q2. If headline inflation appears to be moderating, the RBA may choose to hold rates at 4.10% rather than hiking a third time.

For mortgage holders, this indirect effect could be more valuable than the direct fuel savings. Avoiding a third 0.25% rate hike would save a borrower with a $600,000 mortgage approximately $138 per month ($1,656 per year), far more than the $50 to $70 per month in fuel savings.

The Case That It Hurts

Economists including those at the RBA and the Grattan Institute have raised several concerns:

Demand stimulation. By making fuel cheaper, the excise cut encourages more driving and more fuel consumption. This is the opposite of what you want when supply is constrained.

Fiscal cost. The $2.55 billion cost must be funded somehow, whether through higher taxes elsewhere, reduced spending, or increased government borrowing. All three options have inflationary or growth-dampening effects.

Temporary nature. When the cut expires on June 30, fuel prices will immediately jump by 26.3 cents per litre. This creates an artificial spike in Q3 2026 CPI data, which could push headline inflation higher and potentially trigger further rate hikes in the second half of the year.

Distributional efficiency. A flat per-litre cut benefits heavy fuel users (often higher-income households with larger vehicles and longer commutes) more than low-fuel users. More targeted assistance (like direct payments to low-income households) might achieve better outcomes per dollar spent.

The RBA’s Dilemma

The RBA finds itself in an awkward position. The fuel excise cut is fiscal policy (a government decision), not monetary policy (an RBA decision). But the cut directly affects the inflation data the RBA uses to set interest rates.

RBA Governor Michele Bullock has been careful to distinguish between “temporary” effects on CPI (like the excise cut) and “underlying” inflation pressures. The RBA’s preferred measure, the trimmed mean CPI, strips out volatile items including fuel. If trimmed mean inflation remains elevated despite lower headline numbers, the RBA may still hike.

This creates a scenario where Australian households could get lower fuel prices AND higher mortgage rates simultaneously, which would defeat the purpose for many families.

How Businesses Are Affected

Fuel Tax Credits

Businesses that use fuel for eligible purposes can claim fuel tax credits through their Business Activity Statement (BAS). During the temporary cut period, the credit rates are adjusted to reflect the lower excise.

Eligible purposes include:

• Heavy vehicles (over 4.5 tonnes gross vehicle mass) travelling on public roads
• Machinery and equipment (tractors, generators, forklifts, mining equipment)
• Agricultural, forestry, and fishing operations
• Construction and mining activities

Light vehicles (under 4.5 tonnes) travelling on public roads are not eligible for fuel tax credits, so the excise cut is the only relief for most business vehicles.

Transport and Logistics

The zero-rating of the heavy vehicle road user charge for three months is a significant benefit for the transport and logistics industry. A long-haul truck using 50 litres per 100 kilometres and covering 200,000 kilometres per year burns approximately 100,000 litres.

For a fleet operator with 20 trucks, the quarterly saving exceeds $290,000. This should flow through to lower freight costs, which in turn should moderate price increases for goods transported by road (which is most goods in Australia).

Small Business Impact

Small businesses face the same fuel cost pressures as households, often multiplied. A tradesperson driving a ute 40,000 kilometres per year and using fuel-powered tools on-site could save $250 to $400 over the three-month cut period between the excise reduction and, if eligible, adjusted fuel tax credits.

However, small businesses also face the downstream effects of elevated fuel prices in their supply chains. Materials, parts, and inventory all cost more to transport. The excise cut helps at the margins but doesn’t address the underlying global supply disruption.

Comparing 2022 and 2026: Same Cut, Different World

The key differences:

1. Interest rates are already elevated. In 2022, the RBA was starting from near-zero. In 2026, rates are at 4.10% and still potentially rising. The interaction between fiscal stimulus (excise cut) and monetary tightening (rate hikes) is much more complex.

2. The cut is shorter. Three months instead of six means less fiscal cost but also less time for the benefit to flow through. By the time prices fully adjust at the bowser (two to three weeks), consumers get barely two months of full benefit before the cut expires.

3. Australia’s fuel reserves are more precarious. Australia had approximately 36 days of fuel supply when the Middle East conflict escalated. The 2022 situation, while disruptive, didn’t directly threaten Australia’s fuel supply chain in the same way.

What Happens on July 1?

Unless the government extends the cut (potentially announced in the May 2026 federal budget), the full excise rate will be restored on July 1, 2026. This means:

• Petrol prices will increase by approximately 26.3 cents per litre overnight.
• The heavy vehicle road user charge will be reinstated at approximately 32 cents per litre.
• CPI data for Q3 2026 will show an artificial spike in the transport component.

The political pressure to extend will be immense, especially if global oil prices remain elevated and petrol prices are still well above $2.00 per litre. But the fiscal cost of an extension (another $2.55 billion per quarter) will weigh on a government already managing a tight budget.

Treasurer Jim Chalmers has been careful to describe the cut as “temporary and targeted,” echoing the language used in 2022. In that instance, the cut was not extended, and petrol prices spiked by approximately 25 cents per litre when it expired in September 2022.

Practical Steps for Households and Businesses

For Households

1. Don’t rush to fill up on April 1. Wait one to two weeks for the cut to flow through to bowser prices.
2. Use price comparison apps to find the cheapest stations near you.
3. Consider your driving habits. If you can reduce discretionary driving, the savings compound.
4. Budget for the July 1 price increase now. Don’t let the temporary relief become a permanent expectation.
5. If you’re a two-car household, consider whether you can manage with one car during this period and bank the savings.

For Businesses

1. Review your fuel tax credit claims. Ensure you’re claiming all eligible credits at the correct (adjusted) rate for the April to June quarter.
2. Talk to your accountant about optimising fuel-related deductions and credits.
3. If you’re in transport or logistics, model the impact of the heavy vehicle road user charge returning on July 1 and plan for it now.
4. Consider fixed-price fuel contracts if available in your industry, to lock in some certainty beyond June 30.

For Investors

The fuel excise cut has implications for several sectors:

• Energy stocks (Woodside, Santos): Still benefit from elevated global oil prices regardless of domestic excise settings.
• Transport and logistics (Aurizon, Qube): Benefit from lower fuel costs in Q2 but face reversal in Q3.
• Retail (Woolworths, Coles): Lower transport costs may ease margin pressure temporarily.
• Consumer discretionary: More money in consumers’ pockets from fuel savings may support spending, but the effect is small and temporary.

The Bigger Picture: Australia’s Fuel Vulnerability

The 2026 fuel excise cut is a band-aid on a structural problem. Australia imports approximately 90% of its refined fuel, leaving it acutely vulnerable to global supply disruptions. The country’s fuel reserves (approximately 36 days when the Middle East conflict escalated) are among the lowest in the developed world and well below the International Energy Agency’s 90-day recommendation.

Successive governments have acknowledged this vulnerability without meaningfully addressing it. The 2022 and 2026 excise cuts are reactive measures that cushion the consumer impact but do nothing to reduce Australia’s dependence on imported fuel.

Long-term solutions include increasing domestic refining capacity (currently down to just two refineries: Ampol’s Lytton refinery in Brisbane and Viva Energy’s Geelong refinery), building strategic fuel reserves, accelerating the transition to electric vehicles, and diversifying import sources.

Until those structural changes occur, Australians should expect that every major geopolitical disruption to global oil markets will result in fuel price spikes, emergency excise cuts, and the same debate about inflation and interest rates.

Need Help With Your Tax or Business Planning?

If you’re a business owner navigating fuel tax credits, BAS lodgement, or the financial impact of rising fuel costs, a qualified accountant or tax agent can help you claim every dollar you’re entitled to.

Find an accountant near you to review your fuel tax credit claims and BAS.

Find a financial adviser near you to stress-test your budget against rising costs.

Find a mortgage broker near you if rising rates are squeezing your cash flow and you want to explore refinancing options.