Local authorities are being asked to waive charges for road closures on May 19 - to make it cheaper for people to hold royal wedding street parties.
Prince Harry and Meghan Markle will get married at St George's Chapel, Windsor Castle, on the same date as the FA Cup final at Wembley.
The service will begin at midday and the newlyweds will embark on a carriage procession along a route including Castle Hill, High Street, Sheet Street, Kings Road, Albert Road, Long Walk and finally Windsor Castle.
The Ministry of Housing, Communities and Local Government said: "Many councils, from Bromley to Salford, have already announced that they are waiving charges for street party road closures, making it easier and cheaper than ever to hold celebrations.
"The government is urging other councils to follow suit."
An extra Bank Holiday was announced for the wedding of Prince William and Kate Middleton and the occasion was marked with street parties.
Parliamentary Under Secretary of State Jake Berry MP said: "We've made it easier than ever for local residents from all backgrounds to come together to celebrate the royal wedding and we hope councils will get into the spirit by helping people wishing to organise street parties.
"With the FA Cup final taking place on the same day, there's never been a better reason to hold a street party and our updated guidance makes clear the steps residents need to take to ensure an enjoyable and safe day is had by all."