The Pandora Papers are made up of some 12 million leaked documents revealing the hidden wealth, tax avoidance and money laundering of some of the wealthiest people on earth. Hundreds of journalists around the world have been trawling through the documents for months, with the Guardian and the BBC leading the UK investigation. In one of the most high-profile revelations, it has been claimed that Tony Blair and his wife dodged hundreds of thousands in stamp duty.
There is no suggestion of hidden wealth or money laundering by the Blairs in the Pandora Papers.
However, they do reveal why the couple didn't have to pay ￡312,000 in stamp duty when buying a ￡6.5m building in Marlybone, London.
The former Labour prime minister and his barrister wife acquired the building in 2017 by buying the offshore company that owned it.
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The Pandora Papers reveal the Blairs acquired a British Virgin Islands (BVI) company controlled by the family of Bahrain’s current minister for industry, commerce and tourism - though both sides have said they didn't initially know who they were dealing with.
By acquiring the holding company, and not the property itself, the couple weren't required to pay stamp duty.
There is nothing illegal about this transaction, and there's no evidence the Blairs were actively seeing to dodge tax.
However, the deal highlights a loophole available to wealthy property owners.
Mr Blair has long been critical of tax loopholes, so the revelation is particularly embarrassing.
The townhouse in Marylebone, central London, is now home to Mrs Blair's legal consultancy, which advises governments around the world, as well as her foundation for women.
Mrs Blair said the sellers had insisted they buy the house through the offshore company.
She said they had brought the property back under UK rules and will be liable to pay capital gains tax if they sell it in future.