Key dates

• 7 September 2025

  TSL 2026 Competition Launch – SUSTAINABILITY CULTURE – registration for Teacher Champions/Schools opens on the TSL Competition Platform, hosted by Submittable

• 8 March 2026 (midnight UTC)

  Final deadline for entries via the TSL Competition Platform (extended by a week due to the high volume of submissions)

• 1 May 2026

  Announcement of International Competition 2026 Finalist & Honourable Mention winners on the TSL website

• 22 May 2026

  Finalists & Honourable Mention certificates available on TSL Certificates Portal

• 22 May 2026

  “Top 10” Finalists in the Primary and Secondary age categories will be notified via their Teacher Champions (using their TSL Competition Platform registered email addresses)

• End May 2026

  Invitations to participate in the International Student Debates will be emailed to Teacher Champions (using their TSL Competition Platform registered emails)

• 1-2 July 2026

  International Student Debates, followed by International Student Awards – Primary Schools age group (July 1) & Secondary Schools age group (July 2)