I’m SFO based and fly with quite a few guys who commute down from the Reno area. The discussion comes up frequently and none of them pay any CA state tax. Aside from some... socio/cultural leanings, that ~10% pay bump is the primary reason they live there.

My experience on the 737 is that we leave CA on day one and generally don’t touch it again until the last leg, Hawaii flying being the exception. Anything bigger would be similar, but I don’t know about Bus schedules.

I’m assuming the OP is a United pilot, since it’s posted here.