A move to Texas could potentially save Musk billions of tax dollars based on his 2018 Tesla compensation package, which rewards him when the company hits certain milestones.

Abbott also said Musk was building his next Tesla factory in the state because it would give him the freedom to ‘expand the way he wanted to expand.’

https://www.dailymail.co.uk/news/article-9021137/Elon-Musk-tells-friends-Texas-clashing-California-lawmakers-COVID.html