I will not complete my honours thesis until the end of the first semester next year. Can I apply this year?
Yes, if you believe your academic referees will be able to speak with complete confidence about your expected performance at the end of your honours year. While you can apply this year (and next year, if you are still within the age limit), we do discourage candidates from having a “trial run”. The time of the members Selection Committee is valuable and it really does need to be concentrated on serious applications.