A statement signed by the LASU Public Relations Officer, Mr Kayode Sutton, on Wednesday said the deadline would not be extended.
The institution warned that only students who paid the school fees would be issued matriculation numbers.
It urged the new students to make all necessary payments on or before the deadline in readiness for their matriculation on Friday.
LASU said that adherence to instructions would enable it to ensure a hitch-free academic calendar.
It urged all its students to be of good behaviour and abide by the rules and regulations of the institution.
The News Agency of Nigeria reports that the 2013/2014 newly admitted students began their screening on March 10. (NAN)