And their baby daughter is set to star in the romantic proceedings, according to Us Weekly.
"North will have a large role in the wedding!" an insider told the publication.
Another source says the pair have been planning "lots of events leading up to the big day" for their guests.
The wedding destination looks set to be Paris, where the power couple visited in January to scout venues.
While in the French capital, Kim and rapper Kanye toured the Palace of Versailles after dark and attended a dinner hosted by legendary designer Azzedine Alaia.
"I'm not telling where or the date, but I think it's kind of obvious it's in Paris," Kim told Jimmy Kimmel in January.
Kanye, who hired the AT&T Park stadium in San Francisco to propose to his girlfriend, is taking a hands-on approach to the wedding.
Kim, meanwhile, isn’t particularly keen on a big wedding but is "going along with it," a source told Us Weekly.
"Kim isn't totally pumped about a huge wedding, But she's going along with it."
The reality TV star already has her wedding dress planned – and there's more than one. "She'll do one dress change," a friend told the weekly publication.
Other preparations ahead of the wedding may be the reality TV queen's hair colour. Kim, who is known for flitting between blonde and brunette, dyed her hair back to her natural darker colour at the beginning of February.
"I'm back," she tweeted alongside a snap of herself sporting brown locks, followed by, ":-) Love change."