Victoria's Labor government on Sunday unveiled a pledge to cap road tolls at $30 a week throughout 2027 if it holds onto power at the November election.
It says the $191 million commitment could save individuals and small businesses as much as $5000 per vehicle from January 1.
Premier Ben Carroll denied the policy was simply a move to undercut an opposition plan to cap tolls at $50 a week for two years.
Labor's $30 cap would reach around 200,000 account holders, twice as many as under the coalition's August pre-election pitch, he said.
"The bigger the cap, the less support," he said.
But Opposition Leader Jess Wilson accused the government of offering the cap at "five minutes to midnight" before the election.
"They've had 12 years to do this," she said.
"Victorians are paying higher tolls today as a direct consequence of the decision making of this Labor government."
Under Labor's plan, cars, motorbikes and light commercial vehicles such as utes and vans would be eligible for the 12-month, $30 toll cap for travel on Victoria's three toll roads: CityLink, EastLink and the West Gate Tunnel.
The maximum rebatable claim would be $350 per week, while small businesses would be eligible to apply for cash back on up to five vehicles.
The government estimates the toll cap would save a motorist who travels the full EastLink route every weekday $2500 over the year, while a ute driver using the full CityLink arterial five days a week could claim $5000.
A family or business with three cars could claim up to $15,000.
''A measure like this isn't sustainable long-term - but it's needed in the short-term," Roads Minister Paul Hamer said.
The coalition's $180 million pledge would kick in from July 1, 2027 and could save drivers up to $3000 a year per vehicle.
Tolls would continue to be paid as normal under both pledges, but drivers would be able to claim a rebate each quarter through Service Victoria.
An administration fee of $16 for drivers using toll roads without an e-tag would also be scrapped under both pitches.
The toll relief measures mirror a popular $60-per-week toll cap in place in NSW since 2024 and made permanent by the state Labor government in late 2025.
It has been lowered to $50 until July as a cost-of-living relief measure.
Meanwhile, the coalition on Sunday reiterated its plan to scrap Labor's laws prohibiting gas connections for all new residential and commercial builds from January 1, 2027.
Ms Wilson described the rules as "ideological" and said Victorians should decide how they cook their meals, heat their homes and run their businesses, pledging to axe the plan within 100 days of entering government.
The Victorian Chamber of Commerce and Industry called for fiscal discipline from all sides of politics during the election campaign, warning the state's debt load - the highest in the country - was unsustainable.
Labor continues to trail the coalition in the polls with a primary vote flatlining at 25 per cent for the third straight month, according to the latest Resolve Political Monitor conducted in October and published by Nine newspapers.
Support for the coalition bumped one percentage point to 28 per cent, while primary support for One Nation also plateaued, at 23 per cent.
One Nation's deputy leader in Victoria, Colleen Harkin, on Friday proclaimed the right-wing populist party was prepared to "work with anybody to remove Labor".
Ms Wilson has consistently rejected the idea of entering into a coalition with the rival party.