On April 3, 2023, Shim confirmed he would marry his non-celebrity girlfriend, who is 18 years younger than him, in July after dating for four years.[10] They registered their marriage on June 5, 2023.[11]
On July 8, 2023, the couple held a private wedding ceremony near Mount Fuji in Japan.[12]
On July 17, 2024, it was announced that Shim's wife was pregnant.[13]
^Jeong, Jin-young; Kim, Chang-hyeon (18 March 2014). "'식샤' 심형탁 "드라마 성공? 윤두준 덕분이죠"(인터뷰)". Newsen (in Korean). Archived from the original on 2015-04-02. Retrieved 2015-03-09.
^Jeong, Jin-young; Kim, Chang-hyeon (26 March 2014). "심형탁 "결혼? 아직 도라에몽이 더 좋아요"(인터뷰)". Newsen (in Korean). Archived from the original on 2015-04-02. Retrieved 2015-03-09.
^Ahn Jin-yong (April 3, 2023). "[단독]심형탁, 일본인 여성과 7월 결혼…4년 열애 결실" [[Exclusive] Shim Hyung-tak, married a Japanese woman in July... 4 years of dating] (in Korean). Munhwa Ilbo. Archived from the original on April 3, 2023. Retrieved April 3, 2023 – via Naver.
^Seo Yu-na (July 6, 2023). "심형탁, ♥사야 몰래 개조한 신혼집 공개 "日에 후지산 뷰 집 짓는 중"(신랑수업)[어제TV]" [Shim Hyung-tak, ♥ Saya secretly renovated newlyweds house “Building a house with Mt. Fuji view in Japan” (Groom Class) [Yesterday TV]] (in Korean). Newsen. Retrieved July 10, 2023.
^Kwak Sang-ah (July 8, 2023). ""기뻐하는 얼굴 보는 게 좋아" 심형탁-사야의 일본 결혼식 장소는 흔치 않은 '후지산 바로 밑'이다" ["It's nice to see a happy face" Shim Hyung-tak - Saya's Japanese wedding venue is 'right under Mt. Fuji', which is not common] (in Korean). huffingtonpost.kr. Retrieved July 10, 2023.
^Kang, Joo-hee (July 18, 2024). "심형탁, 18세 연하 ♥사야 임신 소식에 눈물 '펑펑'" [Shim Hyung-tak, 18 years younger than her, bursts into tears at the news of Saya's pregnancy] (in Korean). Newsis. Retrieved August 10, 2024.