I applied online. The process took 8 weeks. I interviewed at BDO (Reading, Engeland) in Dec 2015
Interview
First interview: competency-based, just talk about your cv and why you chose your university, A levels, and your degree; why tax, what are your career goals; how do you know about the qualification; and BDO's four values
Assessment day: Intray-a letter to a client whose father just passed away. Talk about the current progress and additional issues and information needed, I didn't finish the writing so make sure you manage your time well.
Group exercise-a hospital cutting its costs and increasing its income. 10 options from which you need to pick out 4. My advice is to do the calculations and present the results after you finished discussing.
Presentation-choose a company and talk about its challenges, how bro can help, and benefits and risks. Keep eye contact.
Partner interview- nothing to worry about, just know more about you.