| Deadline/Date | Status / Notes | |
| Abstract submission | 31 Jan 2026 | Passed |
| Abstract decisions & presentation format notifications | 23 Mar 2026 | — |
| Early-bird registration & excursion booking | 31 Mar 2026 | — |
| Sign up for shared accommodation & free accommodation | 1 May 2026 | Free accommodation is for Global South students only; No guarantee. |
| Late registration & Welcome Reception | 16 Aug 2026 | — |
| XX IUSSI Congress | 17-20 Aug 2026 | — |
| Excursions | 21 Aug 2026 | — |
