Emmanuel Macron has pledged tax cuts but says the French would also have to work more as he outlined his response to months of anti-government protests.
Macron is under pressure to quell nearly six months of "yellow vest" demonstrations that have brought weekly havoc to cities nationwide.
A first salvo of measures offered last December and worth 10 billion euros ($A16 billion) failed to calm anger among low-income workers.
Macron, who has struggled to shake off the moniker "president of the rich" over his past as an investment banker, said he wanted a "significant" cut in income tax, which would be financed by closing loopholes some companies benefit from.
He said government spending would also be squeezed and the French would have to work longer hours.
The tax cuts, which come at a time when France is battling to keep its budget deficit in check and stick to European Union rules, would be worth around 5 billion euros, he said.
"We must work more, I've said it before. France works much less than its neighbours. We need to have a real debate on this," Macron told an audience of journalists at the Elysee Palace.
Macron said he also wanted to get the French more involved in the democratic process by making it easier to hold referendums on some issues.
A new push to decentralise government, breaking away from the historic "centrist" method where all is decided in Paris, would also be made within a year, and no more schools or hospitals would be closed without backing from the local mayor.
Although the number of demonstrators has declined since a peak in November, protesters clashed with police for a 23rd straight week last Saturday, with the sustained unrest having a draining effect on business, tourism and the economy.
Thursday's response is the result of a three-month long national debate, during which Macron discussed issues from high taxes to local democracy with groups of citizens at town hall meetings around the country.
Dubbed the "great debate", it also involved one meeting where he stayed up debating issues of state with philosophers until after midnight.
Despite the criticism leveled at him, and opinion poll ratings that have fallen to around 30 per cent, Macron stuck to his guns on his policy platform on Thursday, saying his government had already implemented many reforms and would go on.
The yellow vest street rebellion erupted over planned diesel tax hikes but quickly morphed into a broader backlash against inequality and a political elite perceived as having lost touch with ordinary voters.
Macron, who swept to power promising to "transform France" and "make work pay", has seen his ambitious reform agenda derailed, or at least knocked off target, by the unrest. Pension and unemployment insurance reforms planned for 2019 have made little progress so far.
