They explained that UK-based companies are required to publish the names of shareholders, while offshore companies don't.
Her rep also said she gets "absolutely no tax or monetary advantages from this offshore company whatsoever - only privacy".
The Times claimed that by investing her money overseas, Emma was able to buy her £2.8m London home in 2013.
Emma's fans have had mixed reactions to the news.
On Twitter, some people expressed disappointment. Others, however, took the opportunity to show off their comedic skills.
Guy was shocked to discover the famous wizarding bank had shady connections.