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X UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON , D.C. 20549 FORM 20 - F REGISTRATION STATEMENT PURSUANT TO SECTION 12 ( b ) OR ( g ) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of event requiring this shell company report : For the transition period from Commission File number : 001-39968 to TELUS International ( Cda ) Inc. ( Exact name of Registrant as specified in its charter ) Not Applicable ( Translation of Registrant's name into English ) Province of British Columbia ( Jurisdiction of incorporation or organization ) Floor 7 , 510 West Georgia Street Vancouver , BC V6B 0M3 ( Address of principal executive offices ) Michel E. Belec Chief Legal Officer TELUS International ( Cda ) Inc. Floor 7 , 510 West Georgia Street Vancouver , BC V6B 0M3 Tel : ( 604 ) 695-6400 ( Name , telephone , e - mail and / or facsimile number and address of Company contact person ) Securities registered or to be registered pursuant to Section 12 ( b ) of the Act . Title of each class Subordinate voting share , no par value Trading symbol TIXT Name of each exchange on which registered New York Stock Exchange Securities registered or to be registered pursuant to Section 12 ( g ) of the Act . None Securities for which there is a reporting obligation pursuant to Section 15 ( d ) of the Act . None Indicate the number of outstanding shares of each of the issuer's classes of capital or common stock as of the close of the period covered by the annual report . At February 23 , 2021 , 51,932,214 subordinate voting shares were issued and outstanding . Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes ¨ No x If this report is an annual or transition report , indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15 ( d ) of the Securities Exchange Act of 1934. Yes ¨ No x Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days .