The NSW coalition government appears to be closing the gap on Labor less than a month before voters decide who will lead the state for the next four years, a key poll shows.
The Newspoll survey of 1014 voters published in The Australian shows primary support for Labor has fallen by four percentage points since September to 36 per cent, while the coalition has gained two points to 37 per cent.
Premier Dominic Perrottet has increased his lead as preferred premier over Opposition Leader Chris Minns to 43 per cent versus 33 per cent.
In September, Mr Perrottet led his opposition counterpart by 39 per cent to 35 per cent.
However, on a two-party preferred basis Labor leads the government on 52 per cent versus 48 per cent, the poll published on Monday found.
If replicated across the state on election day on March 25, Labor could win 42 seats and the coalition 41, with crossbenchers likely to decide which party will form government.
The Newspoll was conducted between February 20-23.
Meanwhile, the premier's election promise to expand his signature housing affordability policy has sparked a war of words with the opposition labelling it a forever tax.
The plan launched by Mr Perrottet on Sunday would enable first home buyers to choose between an up-front stamp duty payment or an annual land tax on their first and second homes.
"Stamp duty is a terrible tax," the premier told reporters.
The choice would be available on first and second homes worth under $1.5 million, with that cap raised by $50,000 each year from 2023-24.
Stamp duty would be mandatory on an investor's third property.
But the announcement was seized on by Labor as a clear indication the premier could further expand the scheme to all homes.
While treasurer in 2020, Mr Perrottet proposed abolishing stamp duty and replacing it with a broad-based land tax.
Mr Minns said he would rather people paid no stamp duty at all than a land tax forever.
"(Mr Perrottet) is indicating to the people of NSW that he wants to expand the land tax on the family home - something that we've never had in NSW before," he said.
Labor's policy proposes a stamp duty concession for first home buyers buying property up to $800,000 and offering a discount rate for homes up to $1 million.
As the election campaign continues, the state is preparing to mark the one-year anniversary of the devastating Northern Rivers floods, which killed five people and left the town of Lismore devastated.
NSW Greens MPs Jenny Leong and Tamara Smith will be in Lismore to launch a plan to raise billions in taxes from "big polluter" companies and reinvest that money in 2500 new social and public housing homes.
Lismore represented the frontline of both the housing and the climate crisis, Ms Leong said.
"People are hurting, they are traumatised and they need a place to call home," she said.
Under the minor party's plan, big banks, fossil fuel companies and property developers could be targeted for higher taxes, including a "climate disaster levy" on coal exports, which it says could net the state $7 billion a year.
