"We think we are going to do it in Nashville," Kaitlyn, 36, toldEntertainment Tonight. "October of 2022."
Kaitlyn revealed she Jason, 32, have decided on the guest count of "300 or less."
"I wanted small always, but Jason's convinced me to go big," Kaitlyn said. "But then, 'Mr. Finance' Jason was like, budgeting, and he's like, 'Maybe we go smaller?'"
Kaitlyn got the ball rolling on her wedding plans before leaving for the Dancing with the Stars 2022 winter tour, which kicks off Friday.
"I was like, 'Jason, we got to lock down a wedding planner because once I'm gone, I'm not gonna be able to do much and I'm not too picky about things,'" Kaitlyn told ET of the planning process.
"I'll let the wedding planner, as long as I trust them, do their thing, so hopefully that will make it easier."
Kaitlyn announced in Fall 2021 she'd be joining the Dancing with the Stars tour after winning the mirrorball trophy with her pro partner Artem Chigvintsev on Season 29 in November 2020.
Jason told Us Weekly in August 2021 that the couple's wedding plans were progressing nicely.
"We have created a guest list. We have created a website. We have a date set. So, we're [doing] all the right things," Jason shared.
At the time, however, Kaitlyn and Jason -- who currently live in Nashville together -- hadn't decided on where to wed considering Jason's family lives in Buffalo, NY, and Kaitlyn's relatives are in Canada.
"So, we were thinking Nashville is probably a fun area to go," Kaitlyn said last year.
Once the pair tie the knot, Kaitlyn and Jason anticipate wasting no time in starting a family.
"I've had baby fever for, like, 10 years," Kaitlyn admitted last year. "Jason and I already [said], like, 'We're making one as soon as we get married.'"
Kaitlyn would apparently like a big family, but she said she has realistic expectations going forward.
"I have so many girlfriends who have struggled with getting pregnant that I'm truly just happy to even have one," Kaitlyn told Us.
"If that's in the cards for me, what would I ideally love? Probably three but [I'm] not getting any younger. So, I don't know if that's going to happen."
Kaitlyn, who co-hosted The Bachelorette's seventeenth and eighteenth seasons with Tayshia Adams, had originally planned on a Summer 2022 wedding.
"I just know that basically as soon as we can get the ball rolling, I want it to be a Great Gatsby-like, black-tie event -- very glam, which is so opposite of what I thought I would want," Kaitlyn revealed in June 2021.
"Because four years ago, I would have been like, 'I want bohemian. I want it farm-style.' I just keep changing my mind."
Kaitlyn added how she and Jason envisioned their nuptials being "super-chic" with a reception that includes "a band, a deejay and a piano man," who will conduct a sing-a-long during the evening.
Kaitlyn also previously revealed she'd like Artem to choreograph "a nice romantic waltz" for her first dance with Jason as man and wife.
Kaitlyn first met Jason while taping an episode of her "Off the Vine" podcast in October 2018, and he took her out on their first date in January 2019.
Jason -- who finished Becca Kufrin's The Bachelorette season in third place in 2018 -- moved from his place in Seattle, WA, to live with Kaitlyn in Nashville in June 2019. The couple has since adopted two dogs together.