Line 100 – Tax Due
If the amount on line 95 is less than the amount on line 64, subtract the amount on line 95 from the amount on line 64. Enter the result on line 100. Your tax is more than your payments and credits.
There is a penalty for not paying enough tax during the year. You may have to pay a penalty if:
The tax due on line 100 is $500 or more ($250 or more if married/RDP filing separately).
The amount of state income tax withheld on line 71 is less than 90% of the amount of your total tax on line 64.
If this applies to you, see instructions on line 113.
Increasing your withholding could eliminate the need to make a large payment with your tax return. To increase your withholding, complete EDD Form DE 4, Employee’s Withholding Allowance Certificate, and give it to your employer’s appropriate payroll staff. Get this form from your employer or by calling EDD at 888-745-3886. Download the DE 4 at edd.ca.gov or to use the online calculator to estimate your federal withholding, go to ftb.ca.gov and search for de 4 .
Form DE 4 specifically adjusts your California state withholding and is not the same as the federal Form W-4, Employee’s Withholding Certificate.