The subscription fee for Full Members is charged according to the following table:
Undergraduates of the 3-year curriculum of Bachelor of Engineering (Computer Science):
| Status | No. of Academic Years Covered | Amount |
| 1st Year Students | 3 | HK$110.00 |
| 2nd Year Students | 2 | HK$70.00 |
| 3rd Year Students | 1 | HK$35.00 |
| Students beyond 3rd Year | 1 | HK$35.00 |
Undergraduates of the 4-year curriculum of Bachelor of Engineering (Computer Science):
| Status | No. of Academic Years Covered | Amount |
| 2nd Year Students | 3 | HK$150.00 |
| 3rd Year Students | 2 | HK$100.00 |
| 4th Year Students | 1 | HK$50.00 |
| Students beyond 4th Year | 1 | HK$50.00 |
Undergraduates of the 4-year curriculum of Bachelor of Engineering:
| Status | No. of Academic Years Covered | Amount |
| 1st Year Students | 1 | HK$50.00 |
* A registration fee of HK$10 will be charged on joining CSA, ENS, HKUSU.
* The registration fee and subscribing fee of Freshmen of Bachelor of Engineering (Computer Science) start from 2008 are first collected by Engineering Society, HKUSU during the Registration Day. Otherwise, you may come to us directly and register and pay the registration fee to join CSA, ENS, HKUSU.
All staff of Department of Computer Science are Honorary Staff Members of CSA, ENS, HKUSU.
Any graduate of the curricula of Bachelor of Business Administration (Information Systems)/Bachelor of Engineering (Computer Science), Bachelor of Business Administration (Information Systems)/Bachelor of Engineering (Software Engineering), Bachelor of Engineering in Computer Science, Bachelor of Engineering in Software Engineering, Bachelor of Science in Bioinformatics, and Bachelor of Science in Computer Science and Information Systems and all postgraduates of Computer Science are welcome to be Associate Members of CSA, ENS, HKUSU. A registration fee of HK$20 will be charged on joining CSA, ENS, HKUSU.
Registration and Renewal of membership can be made during regular duty time at CS’Area.