State tax filing

You will be able to split your income in the California section. TurboTax will ask you how much of your federal income was earned in CA. Make the adjustment there.

Keep going in California until you reach Nonresident Adjustments.

The next screen will show your total W-2 income. Enter your CA amount here.

California computes it's tax rate for part-year residents on total income earned everywhere, so your California Adjusted Gross Income will include your Washington wages to figure the base tax rate on all income.

Once the base tax is figured, your actual state tax will be the California percentage of the total tax. You will see this calculation on lines 31 to 38 of Form 540NR.