Mr Pearce said he was able to transfer the money and BPAY it through the Commonwealth Bank phone app.
A Commonwealth Bank spokeswoman said it was a visual glitch and if Mr Pearce attempted to move the money, it would not have worked.
"It was a very, very rare incident last year which only a handful of our two million plus app users experienced temporarily," she said.
"No funds were actually available."
While this glitch happened to Mr Pearce late last year, he decided to tell of his temporary fortune following a number of other glitches in the past couple of months.
Just yesterday it was reported a man overdrew his account by more than $2 million after punching in the wrong amount when paying a Telstra bill.
Calum Mawson received a bill for $225 but then received a confirmation email from his phone provider saying it got his payment of $2,250,623.00.
"When I got the email I called customer service and I was told not to worry as the payment would not go through," he told news.com.au.
Mr Mawson was told by Telstra the payment would bounce back, but when he went to pay for an Uber the next day, he was rejected for insufficient funds and his account was overdrawn.
His account balance was not restored for three days.
The Commonwealth Bank spokeswoman said customers should always double-check details they were entering.
"If a Commonwealth Bank customer has made a mistaken internet payment, they should contact our call centre on 13 22 21," she said.
"In the event a payment is made to the wrong account and is processed, we attempt the retrieve our customers' funds on a best endeavours basis.
"In the event the moneys went to a closed account or the money has been spent we are unfortunately unable to retrieve the funds."
Westpac has also had its fair share of banking blunders and mistakenly gave a 21-year-old an unlimited overdraft, an unsecured loan of an agreed limit.