You need to talk to a tax person, because we Californian's took a hit in the new tax law.
Here is the simplest explanation: We used to be able to write-off the exorbitant state taxes we pay in California, on our federal returns. Now there is $10,000 limit, and you are probably going to pay the state wayyyy more than that.
Bottom line, get a tax guy or gal to take a look at your withholding, and see if you need to change anything.
If you have kids, you will be in a better tax position than single-people who make a decent salary. Hey, someone's gotta pay for all those tax cuts.
Either way, have a professional take a look at the tables, and make sure your withholding is correct.
We spoke with CPA Rebecca Walser about the various changes, and you can listen to that here: