A UK tax barrister is suing Uber for tens of millions he says it owes in backdated VAT.
Jolyon Maugham QC, a barrister at Devereux Chambers and founder of The Good Law Project, is suing Uber for unpaid VAT to find out "whether HMRC treats these big US multinationals including Uber with kid gloves."
Maugham told ITV News that Uber should be charging VAT on its ride-hailing services, and owes just shy of £20m just for London in 2015 alone.
Since HMRC can claim for up to four previous years' worth of tax - and sometimes more - the total bill could be a whopper.
In fact, if the action succeeds in the UK, it's likely Uber would face similar costs across the EU.
The company just lost a similar case in Australia, where the court ruled it must pay the Aussie VAT equivalent, Goods and Services Tax (GST).