The application deadline is April 1.
Apply online (https://apply.gsas.columbia.edu/apply/)
Please note that when using the online application process, you will
still need to submit letters of evaluation, supporting materials,
transcripts and standardized test scores.
Further information about the online application can be found on the Graduate School of Arts and Sciences (GSAS) website including the GSAS Admissions forms library.
Once you have submitted your application, you can check the status of your application online.