"RICH and completely dumb" - yes, he said it himself.

Big Brother winner Tim Dormer posted a picture of his St. George bank account online yesterday showing off the $250,000 which had just been deposited into his account by Channel Nine after winning the series.

"Look what I just discovered!!! Not wanting to brag or anything, BUT seriousssssly!!?" Dormer wrote alongside the quarter of a million dollar bank balance thanks to his victory a month ago. News_Image_File: The picture of Tim's bank account before it was deleted. Picture: Supplied

But the image was quickly deleted after Dormer realised that he had also posted his bank account details along with the hefty balance.

He then uploaded another image on Facebook, Instagram and Twitter after calling the bank to delete his account.

"Rich and completely dumb..." he wrote next to the pic, "yes I did just post my bank account details before!! A quick call to the bank to close that account! Phew!! #rich #idiot."

News_Module: Tim Dormer

Dormer received a mixed response from his followers with some lambasting him for bragging about being "rich", while others simply congratulated him for being so open about the earnings.

The newly minted former Nova employee now fronts 2DayFM's The Bump with fellow Big Brother housemate Tahan Lew-Fatt. News_Image_File: Tahan, Tim and Jade - the final three of Big Brother. Picture: Supplied