The series was written by Peter Bowker, directed by Euros Lyn and produced by Matt Strevens for Kudos Film & Television Company.

Describing how he became involved with the production, writer Peter Bowker said, "I was already reading Capital when Derek Wax (Executive Producer), who I've worked with before, sent me it.

Then the more I read the book the more I thought it was similar to Dickens, both in terms of catching a moment of time and how the big decisions filter in to everyday life.

He praised Toby Jones' "fine line in quiet desperation" as banker Roger Yount, and Rachael Stirling’s portrayal of his wife Arabella, but judged that "The standout performances came from Gemma Jones, as pensioner Petunia Howe, a working-class Londoner who had become an accidental millionaire by sitting steadily in her Edwardian terraced house and Wunmi Mosaku as Quentina Mkfesi, a Zimbabwean asylum seeker working illegally as a traffic warden and facing deportation.

[10] Writing in The Independent, Daisy Wyatt decided that, "Fans of John Lanchester's best-selling novel Capital will be pleased with the BBC adaptation starring Toby Jones and Lesley Sharp.

However, she felt that "[…] for viewers unfamiliar with the book, it may not have quite enough intrigue to keep them coming back for more", but concluded overall, "That said, the drama is a pleasing adaptation that brings life to lovable characters, with strong performances from the ensemble cast".

It’s a world where people who think they lead very separate lives are shown to be very connected – often without wanting it" before concluding that, "[…] as you expect from Bowker (writer of the Bafta-winning Marvellous), there is a fierce intelligence at work here, a script which asks some very interesting and important questions but doesn’t force the answers down your throat".