Doctoral Admissions

Ph.D. in Computer Science (Pittsburgh)

trees and pedestrian bridge between Gates Center and Newell Simon Hall, Carnegie Mellon University

If you are applying to the Ph.D. program in Computer Science in either Pittsburgh or Portugal you must apply online. Instructions for each program are available below.


    • Application opens September 6, 2022
    • Early Deadline Tuesday, November 29, 2022 (3 p.m. EST)
    • Final Deadline Monday, December 12, 2022 (3 p.m. EST)
    • Applications and all supporting documents, including letters of recommendation, must be received by the final deadline.
    • Early application deadline fee $80 per program.
    • Application fee after November 29, $100 per program.
    • We expect all applicants to submit payment with their online application. However, we do waive the required fee under certain circumstances. Fees for application to a limited number of our programs can be waived for participants in certain programs. In addition, if you are unable to pay the application fee, SCS will consider a fee waiver request. Visit the SCS Fee Waivers page.

Required Documents & Support Materials

You must submit the following with your application:

  • GRE scores are highly recommended. If GRE scores are not submitted, please briefly explain in the statement of purpose section of your application.
  • If you are an international applicant and your native language (language spoken from birth) is not English, an official copy of an English proficiency score report is required. The English proficiency requirement cannot be waived for any reason. We strongly encourage applicants to take either the TOEFL or IELTS. In cases where these are not available it is acceptable to take the Duolingo test. We discourage the use of the "TOEFL IPT Plus for China", since speaking is not scored. Additional details are provided on the Frequently Asked Questions page.
  • A PDF of your most recent transcript from each college and/or university you attended, even if no degree was granted.
  • Your curriculum vitae in PDF format.
  • Your Statement of Purpose — a concise one- or two-page essay describing your primary research interests, related experiences and objective in pursuing a Ph.D. in computer science.
  • Three letters of recommendation, at least two of which are from faculty or recent employers.

Applications and all supporting documents, including letters of recommendation, must be received by the final deadline of December 12, 2022. You may continue to edit your application until the final deadline.

For more on the application process, check out the SCS Online Graduate Application Instructions.

For general questions about applying to doctoral programs in the School of Computer Science email: applygrad@cs.cmu.edu

Ph.D. in Computer Science (Portugal)

The dual-degree Portugal Ph.D. program uses the School of Computer Science online application for admissions. Students are admitted for the fall semester and cannot begin in the spring.

    • Application opens - September 6, 2022
    • Early Deadline Tuesday, November 29, 2022 (3 p.m. EST)
    • Final Deadline Monday, December 12, 2022 (3 p.m. EST)
    • If you need to retake your TOEFL, IELTS and/or GRE for this application, It is strongly suggested that you plan to take all required tests before November 29, 2022. Reportable scores can take two weeks to process and we may noy be able to review and scores that arrive after our December 12, 2022 deadline. deadline.
    • Early application deadline fee $80 per program.
    • Application fee after November 29, $100 per program.
    • We expect all applicants to submit payment with their online application. However, we do waive the required fee under certain circumstances. Fees for application to a limited number of our programs can be waived for participants in certain programs. In addition, if you are unable to pay the application fee, SCS will consider a fee waiver request. Visit the SCS Fee Waivers page.

Required Documents & Support Materials

You must submit the following with your application:

  • Select "Ph.D. in Computer Science/Dual Degree Portugal" in the application.
  • GRE scores are highly recommended. If GRE scores are not submitted, please briefly explain in the statement of purpose section of your application.
  • If you are an international applicant and your native language (language spoken from birth) is not English, an official copy of an English proficiency score report is required. The English proficiency requirement cannot be waived for any reason. We strongly encourage applicants to take either the TOEFL or IELTS. In cases where these are not available it is acceptable to take the Duolingo test. We discourage the use of the "TOEFL IPT Plus for China", since speaking is not scored. Additional details are provided on the Frequently Asked Questions page.
  • A PDF of your most recent transcript from each college and/or university you attended, even if no degree was granted.
  • Your curriculum vitae in PDF format.
  • Your Statement of Purpose — a concise one- or two-page essay describing your primary research interests, related experiences and objective in pursuing a Ph.D. in computer science.
  • Three letters of recommendation, at least two of which are from faculty or recent employers.

You must also apply to one of these Portuguese institutions, following their application guidelines:

For more on the application process, check out the SCS Online Graduate Application Instructions.