At the time of the 2010 general election, the Conservatives promised a transferable tax allowance worth around £150 to married couples.
The Liberal Democrat leader Nick Clegg ridiculed the proposals as "patronising drivel that belongs in the Edwardian age".
His party later secured a provision in the coalition agreement allowing them to abstain from voting on the issue.
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Tory divisions over a controversial benefit reform could be exposed in a Labour vote in the House of Commons on Wednesday.
Should no deal be negotiated, Dover, the UK's gateway to Europe, would be one of the places to feel the effects of this most.
The Young Vic’s new artistic director Kwame Kwei-Armah has said he could back quotas to help improve the diversity of British theatre.