Praying Seated – Reward – (Hanbali Fiqh)

Answered according to Hanbali Fiqh by

The reward of praying seated is half of that of the one standing if they are able to stand. As for the one who is unable to stand then their reward is full by the Will of Allah.

Praying Tarawih seated is permissible because it is a nafl prayer, and doing so is better than not praying Tarawih at all.