Tax law changes

Yes, you can take your home office deduction on your California tax return even though it is not allowed on the federal return. 

If you enter your property taxes  in the Home Office section, the portion you can't deduct (100%) of it will transfer to the Property Taxes section. 

Because you want to use this expense for your state return, you want to leave it under your home office, but you shouldn't have it entered again under the 1098-INT section or the property taxes section. 

To remove the redundant amount you need to revisit the section where you entered your property taxes. If you aren't sure check here first:

1. Select Federal from the left side menu, then Deductions & Credits. 
2. Scroll down to Your Home, expand the section and click Start or Revisit to the right of Property (Real Estate) Taxes.
3. You can edit the number here if the this the first place you entered it. 
4. If you can't edit it here, select Federal from the left side me, then Deductions & Credits. 
5. Click Edit/Add to the right of Mortgage Interest and Refinancing (Form 1098)
6. Click Edit to the right of your 1098 entry.
7. Click Continue until you get to the page that says, Let's get the details from your 1098, at the top. 
8. Below box 5 you will see a box for Property (real estate) taxes.
9. You can edit this amount here.