Duncan was reported to have re-signed with Souths on 24 August; one outlet reported it, none carried a figure.
The Sydney Morning Herald reported on 24 August 2026 that Tallis Duncan is closing in on a new deal with South Sydney, set to keep him at the club until the end of 2030. Duncan says he is ready to shift back to his preferred back-row role to accommodate Latrell Mitchell.
Tallis Duncan · Souths · signed through 2027 · Cap Dramas Estimate: $280K a season (range $205K–$350K, Estimated).
Duncan was reported to have re-signed with Souths on 24 August; one outlet reported it, none carried a figure.