For 2024 to 2025, the amount of the provisional calculation must be carried out and the sum notified to the Welsh Ministers by 23 February 2024.
Ar gyfer 2024 to 2025, mae’n rhaid cyfrifo swm y cyfrifiad dros dro a hysbysu Gweinidogion Cymru o’r swm hwn erbyn 23 Chwefror 2024.