The NSW government says it's yet to make a decision on whether to introduce a toll in both directions on the Sydney Harbour Bridge and linking tunnel.

The proposal, detailed in leaked documents prepared by the Berejiklian cabinet, would help pay for the $14 billion cost of the proposed Western Harbour Tunnel and Beaches Link. Motorists travelling north on the bridge would be slugged with a $3 toll for the first time from 2022 as part of…