Australia's ongoing fuel price volatility has accelerated the financial case for electric vehicles to the point where it's no longer a close comparison for many drivers. With national average unleaded petrol prices sitting above $2.20/litre in early 2026 and electricity costs broadly stable at 28–35 cents/kWh for home charging, the per-kilometre cost gap between electric and petrol driving has widened to a level that rewrites the ownership economics for any driver doing meaningful annual kilometres. This guide breaks down every element of running cost — not just fuel — to give you the complete, honest picture.
Fuel and Charging Costs: The Core Comparison
The headline numbers in 2026 are stark. The average petrol vehicle in Australia consumes approximately 8.5L/100km on a realistic combined cycle (accounting for the difference between manufacturer test figures and real-world urban/highway driving). At $2.20/litre, that equates to approximately $18.70 per 100km. Even the most fuel-efficient petrol-only vehicles — subcompact hatchbacks achieving 6.5L/100km — cost approximately $14.30 per 100km in fuel alone.
The average EV in Australia consumes approximately 16–20kWh/100km depending on vehicle size, driving conditions, and climate control use. At a home charging rate of 30 cents/kWh (a mid-range estimate for residential electricity in 2026), that equates to $4.80–$6.00 per 100km. For drivers who charge primarily overnight on off-peak tariffs (available at 15–20 cents/kWh through controlled load or EV-specific tariffs with several Australian distributors), the cost falls to $2.40–$4.00 per 100km.
The practical comparison for a driver doing 15,000km annually:
Average petrol vehicle: 15,000km × $0.187/km = $2,805/year in fuel
Average EV (home charging, standard rate): 15,000km × $0.054/km = $810/year in energy
Average EV (home charging, off-peak rate): 15,000km × $0.033/km = $495/year in energy
Annual fuel saving: $1,995–$2,310 per year. Over a five-year ownership period, that's $9,975–$11,550 in fuel savings alone — before accounting for any other running cost differences.
Public Charging: The Real Cost When You're Not at Home
The economics change significantly when public charging enters the picture. Fast DC charging at commercial networks in Australia in 2026 typically costs 55–75 cents/kWh (Ampol AmpCharge, Chargefox, Evie Networks) — roughly double the home charging rate. Tesla Superchargers, available to all vehicles since the network opened in 2023–2024, price at approximately 55–65 cents/kWh for non-Tesla vehicles and slightly lower for Tesla vehicles on subscription plans.
At 65 cents/kWh and 18kWh/100km consumption, public DC fast charging costs approximately $11.70/100km — still meaningfully cheaper than petrol but significantly less advantageous than home charging. Drivers who depend primarily on public charging (apartment dwellers without home charging access, frequent interstate travellers) should model a blended rate between home and public charging based on their actual usage pattern. A driver who charges 70% at home and 30% publicly arrives at an effective blended rate of approximately 40 cents/kWh, equating to around $7.20/100km — still 60% cheaper than average petrol.
Servicing Costs: EVs Win Significantly
Electric vehicles have fewer moving parts than petrol equivalents — no engine oil, no timing belt, no spark plugs, no exhaust system, no transmission fluid (in single-speed EVs), and significantly reduced brake wear through regenerative braking. This mechanical simplicity translates directly into lower scheduled servicing costs.
Average annual servicing cost comparison in Australia in 2026:
Petrol SUV (eg. Toyota RAV4 petrol): $350–$450 for a standard service including oil change, filter replacements, and inspection. Major services (every 40,000–60,000km) including timing belt and brake fluid flush cost $700–$1,200. Annual average over a 5-year period: approximately $450–$550.
Hybrid SUV (eg. Toyota RAV4 Hybrid): Slightly lower than petrol due to reduced brake wear. Annual average: approximately $380–$480.
EV (eg. Tesla Model Y): Tesla recommends annual inspection services at approximately $200–$300. No oil changes. Brake pad replacement is significantly delayed due to regenerative braking — many EV owners go 80,000–100,000km before first brake pad replacement. Cabin air filter replacement at $80–$120 every 2 years. Annual average over a 5-year period: approximately $180–$280.
Annual servicing saving: approximately $200–$350 per year for EV vs petrol. Over five years: $1,000–$1,750.
Tyres: EVs Cost More
This is the one area where EVs consistently cost more to run than petrol equivalents. EV-specific tyres — necessary to handle the higher vehicle weight from battery packs and to minimise rolling resistance — are typically 20–40% more expensive than equivalent petrol vehicle tyres. More significantly, EV tyre wear rates are higher due to instant torque delivery: many EV drivers report needing tyre replacement at 25,000–35,000km versus 40,000–60,000km for petrol equivalents in similar driving conditions.
Additional annual tyre cost for EV vs petrol: approximately $200–$400 per year depending on driving style and model. Tesla Model Y owners report particularly high tyre wear on aggressive setups; more conservatively driven EVs narrow this gap significantly.
Registration and CTP Insurance
Registration and CTP (Compulsory Third Party) insurance costs are broadly similar between EV and petrol vehicles for comparable size classes, though some state governments have introduced EV-specific registration incentives. The Victorian EV road user charge (3.0 cents/km for pure EVs, 2.5 cents/km for PHEVs — applicable to registered EVs from 2021) adds approximately $450/year at 15,000km, partially offsetting the fuel savings. However, Victoria's road user charge has faced legal challenges and its long-term future is uncertain. South Australia, New South Wales, and Queensland have not introduced similar charges as of April 2026.
The Complete Five-Year Running Cost Comparison
Modelling a 15,000km/year driver in 2026, choosing between a used Toyota RAV4 petrol (approximately $42,000) and a used Tesla Model Y Standard Range AWD (approximately $48,000 — $6,000 more):
RAV4 Petrol (5-year running costs):
Fuel: $2,805/year × 5 = $14,025
Servicing: $500/year × 5 = $2,500
Tyres: $600/year × 5 = $3,000
Registration/CTP: $900/year × 5 = $4,500
Total: $24,025
Tesla Model Y (5-year running costs):
Charging (home + occasional public): $900/year × 5 = $4,500
Servicing: $250/year × 5 = $1,250
Tyres: $900/year × 5 = $4,500
Registration/CTP/road user charge: $1,350/year × 5 = $6,750
Insurance premium gap vs petrol: $843/year × 5 = $4,215
Total: $21,215
5-year running cost saving for EV: approximately $2,810
This saving does not fully offset the $6,000 purchase price premium over the equivalent RAV4 petrol example. However, the calculation shifts substantially for higher-mileage drivers: at 25,000km/year, the EV running cost saving over five years reaches approximately $7,500–$9,000 — clearly exceeding the purchase price premium.
The Hybrid Middle Ground
For drivers who can't access home charging or who are uncomfortable with EV range constraints, the used Toyota RAV4 Hybrid presents the most compelling middle ground in the 2026 Australian market. At approximately $47,000 for a 2022 GXL hybrid, it costs $5,000 more than the petrol equivalent but delivers fuel consumption of approximately 4.7L/100km versus 7.8L/100km for the petrol — saving approximately $1,600/year in fuel. Servicing costs are similar to the petrol RAV4. Over five years, the hybrid savings fully justify the purchase premium, with money to spare — and resale values remain higher than the petrol equivalent.
The conclusion for Australian drivers in 2026 is increasingly clear: for high-mileage drivers with home charging access, the EV total cost of ownership case is compelling. For moderate-mileage drivers or those without home charging, a used hybrid captures most of the running cost benefit with none of the charging infrastructure dependency. The pure petrol vehicle — outside of specific use cases like remote regional driving or towing — is becoming increasingly difficult to justify on pure economics alone.
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