While independent outage monitor Down Detector has registered a huge spike in TSB down reports.
At the time of writing, Down Detector UK has recorded a peak of around 1,400 TSB down reports.
Out of those affected some 62 percent are facing TSB internet banking issues while 35 percent are having mobile banking problems.
As the TSB issues hit users took to social networking site Twitter to report the problems they were facing.
Martin Lewis gives advice on taking money from old bank account
One tweeted: @TSB Is there a problem with internet banking? It’s not letting me log in to my account.