Fuel Excise Cost Calculator: What the 2026 Increase Costs Your Business

Fuel excise returned to the full indexed rate of 53.7 cents per litre on 3 August 2026.

That is 17.1c/L more than the July rate and 33.1c/L more than the April emergency rate. It also sits above the 52.6c pre-crisis baseline, because excise is indexed — there is no “back to normal” coming.

Work out what it costs you.

Fuel Excise Cost Calculator

Fuel excise returned to the full indexed rate of 53.7c per litre on 3 August 2026. Work out what that costs your fleet.

Auto-fills from vehicle type. Override with your real figure if you have it.

Used to show the revenue needed to replace this cost.

Changes your net position. Confirm entitlement with your accountant.
Additional annual excise cost vs the July rate
$0
Excise period Rate Annual excise cost vs today
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This is one line item. There are eight others.

Fuel is the most visible cost pressure right now, but wages carry roughly half the weighting of the small business cost index. A Profit Diagnostic finds the levers that move more than fuel does.

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Excise rates: 52.6c/L to 31 March 2026; 20.6c/L from 1 April to 30 June 2026; 36.6c/L from 1 July to 2 August 2026; 53.7c/L from 3 August 2026. Source: Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts. Fuel tax credit rates move with the excise rate and vary by use — entitlements shown here are indicative only. This calculator provides general information, not tax advice. Confirm your position with your accountant.

How to read the result

The headline figure is the step-up from July, which is the increase that landed this month and the one most operators have not yet repriced for.

The revenue figure is the important one. At a 10% net margin, every dollar of unrecovered cost requires ten dollars of additional sales to replace. That comparison is usually what convinces people to have the pricing conversation rather than absorb it.

Fuel tax credits change the picture if you run heavy vehicles on public roads or use fuel off-road. The credit rate moves with the excise rate, so your net position depends on your entitlement. The offsets applied here are indicative — confirm your actual entitlement with your accountant.


What to do with the number

Recalculate cost per kilometre. Not fuel cost — total cost including maintenance, tyres, registration, insurance, finance, depreciation and driver time. Most operators quote from a figure built two or three years ago and adjusted by feel.

Check your contracts. Do they contain a fuel surcharge mechanism, and are you actually applying it? Do they contain rise-and-fall, and does fuel fall within scope? For fixed-price work quoted before March 2026 — what is the remaining exposure and how long does it run?

Move the surcharge before the base rate. A surcharge tied to a published index is far easier for a customer to accept than a rate increase, because it is visibly outside your control and it falls again when fuel does.

Do not absorb it quietly. The default Australian response to cost increases is absorption — thinner margins, longer hours, less taken out of the business. Absorbing this across a fleet for twelve months is a decision. Make it deliberately or not at all.


Where to go next


Excise rates sourced from the Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts. Current as at 7 August 2026. This calculator provides general information, not tax advice.

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Written by Pipeline Plan Team

Pipeline Plan builds high-converting B2B websites and automation systems for Australian businesses, from Victoria's Mornington Peninsula and Australia-wide.