Hi Bullbear, I'm a CA preparer. The way our non-resident returns are "built," you calculate total income for CA purposes, and then apportion it down in the tax calc.  So while I can't see/verify all your other inputs to know if the tax is correct, I can confirm that if the $6,150 is not in the Federal AGI at the top line of the return (which it shouldn't be), it DOES need to all be added back to compute CA AGI.