Liverpool City Council is waiving the cost of signs and cones for street parties held to celebrate the Queen's Diamond Jubilee.
The council has agreed to cover the costs associated with the closure of roads - which would usually fall to organisers - over the bank holiday weekend from 2 to 5 June.
These costs would usually total about £100.
So far, 18 street parties have been organised in Liverpool.
Mayor of Liverpool Joe Anderson said the council wanted to make it as easy as possible for people to hold an event.
"It is a great opportunity for neighbours and friends to come together and celebrate the Queen's 60 years of service to the nation," he said.
Party organisers are being advised that they will still need to obtain public liability insurance for their events.
No licences or permits are needed for serving food or drink - unless it involves the sale of alcohol - or for playing music.
The council said the deadline for applications was 18 May.
The Queen's Diamond Jubilee tour will arrive in Liverpool on 17 May.