Fuel Cost Recovery: Protecting Transport Margins When Diesel Moves

Sep 28, 2026

Summary

In 2026 diesel prices jumped within weeks. Operators with a fuel levy in their contracts could recover the cost as it happened; operators on fixed rates had to absorb it until they could renegotiate.

• The shock. Five-city average diesel rose from 176.6 to 322.4 cents a litre between 20 February and 31 March 2026, and was 286.8 cents on 23 September.
• The response. The Fair Work Commission’s Fuel Cost Recovery Order, from 21 April 2026, required businesses up the contracting chain to adjust rates fortnightly so owner-drivers and contractors recovered fuel increases measured from 6 March 2026.
• The tool. The Freight Metrics Fuel Levy Calculator applies the standard formula: (current fuel − base fuel) ÷ base fuel × fuel percentage. In its published example, a $1.00 base and 20.55% fuel share gives a 31.44% levy at $2.53 a litre.
• The sensitivity. In that example, a fuel rise of 54 cents a litre wipes out a 10% margin on a fixed rate. The February-to-March rise would have turned a $193 daily margin into a $280 daily loss.
• The consequence. Road freight exits rose from 7,661 in 2021–22 to 10,425 in 2024–25, and only 45.6% of non-employing road transport businesses survived four years.

A fuel levy in every contract, reset often and calculated from your own costs, is the simplest protection against the next fuel shock.

The 2026 fuel shock

Diesel is the most volatile cost a transport business carries, and 2026 showed how fast it can move. Average retail diesel in Australia’s five largest cities rose from 176.6 cents a litre on 20 February to 322.4 cents on 31 March, an 83% increase in six weeks. On 23 September 2026 it was 286.8 cents, still 110.2 cents above the February level (ACCC Weekly fuel price monitoring report, 24 September 2026). The ACCC links the rise to the escalation of conflict in the Middle East from 28 February 2026.

Excise, road user charge and fuel tax credits changed three times

Sources: ATO, Fuel tax credit rates from 1 July 2026; ATO, Fuel tax credit rates changed from 1 April 2026.

Operators must use the rate that applied on the date the fuel was acquired. Getting this wrong changes both the business activity statement claim and the net fuel cost used in pricing.

What a heavy vehicle operator actually pays

A GST-registered operator running heavy vehicles on public roads recovers GST and claims the fuel tax credit, so the net cost is well below the pump price. Using the ACCC average for 23 September 2026 and the ATO rate from 3 August 2026:

The calculation is arithmetic on the sourced figures. Actual prices vary by location, supplier and volume discount, and fuel tax credit eligibility depends on the vehicle meeting the ATO’s environmental criteria.

Fuel cost recovery

When fuel rises, someone absorbs the difference. Without a recovery mechanism in the contract, the carrier or owner-driver doing the work absorbs it. In 2026 the rules changed.

The Fuel Cost Recovery Order

On 20 April 2026 the Fair Work Commission made the Road Transport Contractual Chain Order – Fuel Cost Recovery – 2026, the first order of its kind. It applied from 21 April 2026 and followed a joint application by the Transport Workers’ Union and the Australian Road Transport Industrial Organization (Fair Work Ombudsman, Fuel cost recovery: Road transport order issued). Its key features:

• Who pays. Primary parties at the top of the chain, such as manufacturers, suppliers, large retailers and construction companies, must adjust the rate they pay so the transport provider recovers the increased cost of fuel.
• Who benefits. Secondary parties such as transport companies must pass those increases on, so the money reaches regulated road transport contractors (such as owner-drivers) and employee-like workers. The order does not apply to employees, or to livestock transport.
• How often. Rates must be adjusted each fortnight or twice each calendar month.
• The baseline. The increased cost of fuel is measured against the cost per litre on or before 6 March 2026.
• How to adjust. Parties can change the rate, add a fuel increment or levy, reimburse fuel costs directly, or combine these. Existing rise-and-fall clauses may already satisfy the order.
• When it stops. The fuel cost rules stop applying when the weekly average national terminal gate price for diesel, as reported by the Australian Institute of Petroleum, falls below $2 per litre.
• Contravening the order is unlawful, and courts can impose penalties.

Victorian Government guidance states that the order’s additional obligations applied from 21 April to 7 June 2026 (Victorian Government). The Commission said it would review the order after one month and then every three months, so operators should check its current status with the Commission.

The order was a response to a fuel supply disruption and switches off when diesel prices fall. A fuel levy written into every contract is the permanent fix, because it works whether or not an order is in force.

How a fuel levy works

A fuel levy (or fuel surcharge) is the fuel portion of the freight rate, adjusted up or down as fuel prices change without renegotiating the whole rate. The carrier quotes three things: a base rate, the base fuel price that rate assumes, and the percentage of the rate that is fuel. The levy is then:

\text{Fuel levy \%} = \frac{\text{Current fuel cost} – \text{Base fuel cost}}{\text{Base fuel cost}} \times \text{Base rate fuel \%}

The levy is recalculated daily, weekly or monthly, as agreed with the customer, usually using an average fuel price over the period (Freight Metrics, Fuel Levy Calculator).

The Freight Metrics Fuel Levy Calculator

The Freight Metrics Fuel Levy Calculator applies the standard levy formula to an operator’s own figures. The user enters four inputs, and the calculator returns the levy percentage and the adjusted rate.

The calculator does not update fuel prices automatically. The operator and customer agree which price to use, for example a weekly or monthly average.

Worked example from the calculator

Freight Metrics publishes an example linked to its Truck Operating Cost Calculator: a single curtain-sider running 750 km a day at 2.1 km per litre, with a 10% margin and a $0.213 per litre fuel rebate.

Source: Freight Metrics, Fuel Levy Calculator. The 20.55% comes from 357.14 litres a day (750 km ÷ 2.1 km/L) at $1.00, divided by a daily operating cost of $1,737.96 at that fuel price.

Checking the formula: at $2.53, (2.53 − 1.00) ÷ 1.00 × 20.55% = 31.44%, and $1,931.07 × 1.3144 = $2,538.20, matching the calculator to the cent after rounding.

Three rules for consistent results

Freight Metrics sets out three rules to keep the levy consistent with the truck cost model:

1. Use pump prices in both fuel fields. The 20.55% is fuel at the pump price over actual cost, which already includes the rebate saving. If you enter prices net of the rebate ($0.787 base, $2.317 current), use 16.17% instead; it produces the same 31.44% levy.
2. The fuel percentage is a share of cost, not of the rate. Using the share of cost means the margin applies to fuel increases too. Fuel as a share of the rate would be 18.49% in this example and would pass through the cost increase only.
3. The percentage only fits the inputs it came from. Change the truck, distance, fuel economy, margin or rebate and the fuel percentage changes. Recalculate it from the operator’s own Truck Operating Cost Calculator figures.

Freight Metrics notes that heavy vehicle fuel tax credits depend on vehicles meeting environmental criteria that carry their own costs, so the credit is not generally passed on to customers. The example’s $0.213 rebate is a model input; the ATO rate for heavy vehicles on public roads from 3 August 2026 is 21.3 cents per litre.

Business economics: how sensitive is the margin to fuel?

In both the Freight Metrics example and US industry data, fuel is about a fifth of operating cost while margins are thin, so a modest fuel rise can wipe out the whole profit. The Freight Metrics example puts fuel at 20.55% of daily operating cost. In the United States, the American Transportation Research Institute (ATRI) found fuel averaged US$0.48 of a total US$2.336 per mile in 2025, about 20.5%, and truckload operating margins were below 1% (FleetOwner; ATRI).

Sensitivity: the Freight Metrics example without a fuel levy

Using the calculator’s published example (357.14 litres a day, $1,737.96 daily cost, $1,931.07 daily rate), the daily margin is $193.11, or 10.0% of the rate.

These are calculations on the Freight Metrics example and the ACCC five-city averages, with pump price increases converted to ex-GST by dividing by 1.1. They assume fuel use and all other costs stay the same.

The lesson: in this example, a rise of just 54 cents a litre turns a 10% margin into zero. The actual 2026 rise was more than double that. Without a fuel levy, an operator on a fixed rate set in February would have been running at a loss at both the March peak and September prices.

With a fuel levy

With the levy in place, the rate moves with fuel. At $2.53 a litre the example rate rises from $1,931.07 to $2,538.21 a day, and at $3.00 to $2,724.73. Because the fuel percentage is a share of cost, the margin is preserved on the higher fuel spend as well.

Freight prices followed

The ABS reported that road freight transport output prices rose 15.5% in the June quarter 2026, driven by fuel (ABS, Price indexes and inflation). Freight prices did rise. Operators are most exposed when their contracts only reprice once a year, or when they depend on the customer agreeing to a mid-contract increase.

Failure rates: what happens when margins disappear

Road freight businesses were already closing at a rising rate before the 2026 fuel shock. The ABS data that will show the shock’s full effect has not yet been released.

Road freight exits (ABS)

Source: ABS, Counts of Australian Businesses, including Entries and Exits (cat. 8165.0), data cube 2, Road Freight Transport (ANZSIC 4610); 2021–22 and 2022–23 from the 18 December 2023 release, 2023–24 and 2024–25 from the 16 December 2025 release. An ABS exit means a business stopped actively trading, not necessarily that it failed.

Survival is lowest for the smallest operators

Of road transport businesses trading in June 2021, 52.9% were still trading four years later, against 63.1% across all industries. For non-employing operators, many of them owner-drivers, survival was 45.6%, against 56.8% across all industries (ABS 8165.0, data cube 4, December 2025 release, and data cube 1, August 2025 release). The ABS publishes survival only for the whole Road Transport subdivision, which includes buses, taxis and rideshare as well as freight.

Other indicators

• CreditorWatch data reported by the Australian Institute of Credit Management put the road transport closure rate at 8.46%, about one in 12 businesses, in the 12 months to 31 October 2025, citing fuel, maintenance and labour costs, interest rates and price competition (AICM).
• Across all industries, ASIC recorded 14,722 companies entering external administration for the first time in 2024–25, up 33.2% on the prior year (ASIC Corporate Insolvency Update, Issue 37).

Why fuel matters to survival

None of these sources isolates fuel as the single cause of closures. But the sensitivity example shows the mechanism: at a 10% margin, a fuel rise of about 54 cents a litre is enough to eliminate the profit on a fixed-rate contract. The businesses least able to absorb that are the smallest, which are also the ones with the lowest survival rates. ABS class-level data for 2025–26, which covers the fuel shock, has not yet been released; the last two class-level releases came out in December.

Practical steps to protect margins

1. Know your fuel percentage. Calculate fuel as a share of your operating cost from your own figures, using the Truck Operating Cost Calculator. A generic percentage can under- or over-recover.
2. Put a fuel levy clause in every contract. State the base rate, base fuel price, fuel percentage, the price source (for example, the ACCC or AIP average) and how often the levy is reset.
3. Reset often enough. The Fuel Cost Recovery Order required adjustments every fortnight or twice a month. Monthly or quarterly resets leave the operator carrying the cost in between.
4. Be consistent about the fuel tax credit. Use pump prices throughout, or net prices throughout, and match the fuel percentage to that choice, as the calculator’s rules set out.
5. Show the customer the working. A transparent levy based on a published price is easier to agree than a request for a rate increase.
6. Check your contracting chain. If you engage owner-drivers or subcontractors, make sure fuel increases are passed down. If you are an owner-driver, ask how your principal passes on fuel increases.
7. Watch the rules. Monitor the Fair Work Commission’s road transport cases; future orders may cover fuel levies, rate reviews and payment times.

About the data

• Fuel prices are ACCC averages for Australia’s five largest cities, including GST and excise. Net-of-GST figures divide by 1.1.
• Fuel tax credit and excise changes are from ATO rate tables. Operators should use the rate for the date fuel was acquired.
• The sensitivity example applies ACCC price changes to the Freight Metrics published calculator example. It assumes fuel use and all other costs stay constant, and it is an illustration, not a forecast.
• The Fuel Cost Recovery Order summary is from the Fair Work Ombudsman. Its current status should be checked with the Fair Work Commission.
• Business exits and survival are ABS figures; an exit is not necessarily a failure. CreditorWatch measures closures differently from the ABS, so the rates are not directly comparable.
• US cost data is included only to show fuel’s typical share of cost and margin levels; no equivalent official Australian series was found.
• This article is general information, not legal, tax or financial advice.

References

1. Australian Competition and Consumer Commission, Weekly fuel price monitoring report, 24 September 2026.
2. Australian Taxation Office, Fuel tax credit rates from 1 July 2026 to 30 June 2027.
3. Australian Taxation Office, Fuel tax credit rates changed from 1 April 2026.
4. Fair Work Ombudsman, Fuel cost recovery: Road transport order issued, updated 19 May 2026.
5. Victorian Government, Guidance on Road Transport Contractual Chain Order – Fuel Cost Recovery – 2026.
6. Freight Metrics, Fuel Levy Calculator and Truck Operating Cost Calculator Trial.
7. American Transportation Research Institute (2026), New ATRI Report Details Accelerating Costs and Low Profitability Despite Cuts.
8. FleetOwner (2026), Trucking operational costs hit record $2.336 per mile, ATRI reports.
9. Australian Bureau of Statistics, Price indexes and inflation.
10. Australian Bureau of Statistics, Counts of Australian Businesses, including Entries and Exits (cat. 8165.0), data cubes 1, 2 and 4.
11. Australian Institute of Credit Management (2025), Risks mounting in Australia’s road transport sector (CreditorWatch data).
12. Australian Securities and Investments Commission, ASIC Corporate Insolvency Update, Issue 37.

All sources accessed 28 September 2026. Calculations are based on the figures shown.