The couple, who announced their engagement in March 2016, have two children together - daughter Lukensia, 8, and son Phoenix, 6.
Taking to Instagram, Jillian released a statement that read: 'Hey tribe, You've been with me through it all so I'm sharing some news with you...'
Continuing, 'Heidi and I have been split for a while now. We've found we're better friends and parents living apart than staying together.
'Life and people change but our love for one another and commitment to raising our two kids as an inseparable team remains.
'Thanks for always loving and supporting us, the feeling is mutual.'
Jillian and Heidi began dating in 2009, according to Us Weekly. The two adopted their first child from Haiti in May 2012, and Rhoades gave birth to their second child the same month.
Speaking candidly to PEOPLE about being a gay parent, Michaels admitted: 'One evening, when my daughter was maybe 6, she said to me that she thought gay people were gross, or gay was gross. And I freaked out.
'When people , I don’t find that it’s ‘all the sleepless nights’ or the poopy diapers. It’s these kinds of moments that bring you face to face with all of your deep, dark issues, where you don’t handle it well. And I really wish I had handled it differently in the moment.'
Heidi has not yet addressed the breakup publicly.
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