Quote below from the article you linked. Looks to me like the headline writer is one of the many unable to distinguish between the two:
Read something today, (forget where from) that the USA don’t have a trade deficit with the UK, so the Govt. Are asking for an exemption on trade tariffs. If this doesn’t work then I hope we have some retaliatory plans ready. Trade wars are no good for anyone, but we can’t be bullied by the USA.
The quote also refers to tax evasion, but in the context of measures that were introduced in last year's budget, which is what the £6.5bn reference relates to. Admittedly, I'd expect probably at least 95% of the population to view the terms as equivalent to each other, and it's a technicality that the vast majority of people won't be aware of, or even care about. I had to answer that specific question in some detail in one of my tax papers as part of my Chartered Accountancy exams many moons ago so, sadly, I'm one of the nerds who gets triggered by seeing it mis-used, particularly by journalists or politicians who are among the two groups who should know better.