The Sun reports that the pair, who wed in a lavish ceremony attended by many of their famous friends in September of last year, have had a series of rows and decided to 'take time out'.
The source continued 'they are spending some time apart while they work through their problems.'
'They’ve not split up but have been going through a tricky time - arguments and various other things.
They have always had a tempestuous relationship and have been through a hell of a lot.'
Another source told the Daily Mirror: 'This could be the beginning of the end. No one has dumped the other, they just can’t make things work at the moment.
'It’s very sad and not what either of them ever wanted to happen.'
Kym is based in the North West where she films Coronation Street while Jamie is down in London due to his Eastenders commitments but even when he returns home it is reported the pair are not staying together.
“Jamie is not at the marital home — even when he’s back in the North West. They’ve been living apart for about a week.
“They are utilising the fact that Jamie is filming in London to have a bit of space while they try to work through it.'
The couple have a daughter, Polly - 2 - together while Kym has two children from her marriage to Jack Ryder.
The couple have had a tempestuous relationship with Jamie being accused of taking another woman back to his hotel suite in May of last year where they were reported to have kissed.
At the time Kym revealed she was 'annoyed, upset and angry' continuing 'I was annoyed there were girls in his room, but I trust him and there’s no way he’d cheat.'
There is no suggestion any third party is involved in the current difficulties.