The ITV1 show, which was won by Ashleigh & Pudsey in May, will visit seven cities to find acts for the 2013 series
Any performer of any age is welcome to try out in London, Birmingham, Glasgow, Belfast, Cardiff, Manchester and for the first time ever, Sheffield.
Executive producer Sam Donnelly said: "Britain's Got Talent is a show like no other and after a fantastic series in 2012 we want to make sure that our next series is packed to the rafters with the very best variety talent around too.
"We have high hopes for all the cities and we're determined to find even more talent than ever before."
Acts can apply for the auditions on the Britain's Got Talent website. Filmed auditions with the judges will take place in the New Year.
Open audition details are as follows:
Photo gallery - Britain's Got Talent final 2012: