The Government's expected to announce next week that congestion charging in Auckland could be introduced in 2025.

A report by the Helen Clark Foundation's looked at the equity impacts of congestion charging, and is recommending the charges be brought in fairly.

There was talk in 2020 that Aucklanders could pay $3.50 to go in and out of the CBD during peak times.

Report author and WSP Fellow Tom James says congestion charging appears to be inevitable.

He says without it, achieving the country's climate goals is extremely unlikely.

The report says the equity impacts of a Wellington congestion charge are less clear, as there needs to be more research.

LISTEN ABOVE