University of Helsinki offers one Bachelor's Programme in English, the Bachelor’s Programme in Science. The other undergraduate degrees are offered only in Finnish and/or Swedish.
The Bachelor's Programme in Science has two separate admission processes with different application periods. The correct application period is determined by your previous degree. The application period for Admission group 1 closed on 10 Jan 2020. The applications for Admission group 2 open on 18 March 2020, 8:00 (UTC+2) and close on 1 April 2020, 15:00 (UTC+2). You are eligible to apply in Admission group 2, if you have completed one of the following degrees: Finnish matriculation examination, RP- or DIA-examination administered in Finland, or IB- or EB-diploma.
After reading the instructions on this page carefully, you can submit your application online at the Finnish national application system Studyinfo.fi. Also the admission requirements for the programme can be found there. You will be directed to the online application form when clicking "Fill in application" on the programme page at Studyinfo.fi.