The document summarizes key deadlines for filing 2019/20 Hong Kong profits tax returns. The extended deadlines are June 30, 2020 for accounting periods from April 1 to November 30, 2019, August 17, 2020 for periods from December 1, 2019 to December 31, 2019, and November 16, 2020 for periods from January 1 to March 31, 2020. Newly registered businesses generally receive their first return 18 months after incorporation. Continuing businesses will have returns issued on April 1 each year, except in 2020 when it is postponed to May 4 due to COVID-19. Businesses not previously assessed as liable to tax must notify authorities within 4 months if they become chargeable.