Free 2019 California Income Tax Calculator 2018

My Income
Filing Status
Claim an exemption for myself
Claim an exemption for my spouse
How to use the California tax estimator How To Use This Calculator
You can use our free California income tax calculator to get a good estimate of what your tax liability will be come April. On the next page, you will be able to add more details like itemized deductions, tax credits, capital gains, and more.
Please remember that the income tax code is very complicated, and while we can provide a good estimate of your Federal and California income taxes, your actual tax liability may be different.

California Income Tax Examples

Average Family
Married, 2 dependents
$50,000 Income
-$847 California tax
$49,153 after tax
Upper Class Family
Married, 2 dependents
$100,000 Income
-$3,966 California tax
$96,034 after tax
Average Retired Couple
Married, no dependents
$33,000 Income
-$363 California tax
$32,637 after tax

You can use our free California tax calculator to estimate your 2018 state and federal income taxes as well as calculate your expected tax refund. On the next page, you will be able to enter more detailed information, such as itemized deductions and tax credits. For more information, visit our main page on the California Income Tax or California tax deductions.

About Our California Tax Calculator

How To Use The California Income Tax Estimator
Our calculator will calculate your taxable income (your reported income minus deductions and exemptions), then estimate your Federal Income Tax and California Income Tax based on the current marginal tax rates for your filing status. We can also calculate several popular federal tax deductions, including the Earned Income Tax Credit, Child Tax Credit, and American Opportunity Educational Credit. Please keep in mind, however, that we can only provide an estimate of your actual owed taxes!
If you provide your total tax withholding as found on your 2018 1099 and W-4 forms, we can also calculate both your 2018 California tax refund and your 2019 federal tax refund. If the amount withheld from your paycheck is more then you actually owe you'll receive tax refund checks from the California and the IRS, but if your withholding does not equal your California and Federal income tax debt you'll have to pay the balance on April 15th.

[-] What should I know before using the calculator?

The income tax calculator will generate an income tax estimate for you that taxes several common deductions and exemptions into account. Make sure you know what these common tax terms mean before using the calculator:
  • Filing Status: Your income tax filing status depends on your maritial status. Both the California Income Tax and the Federal Income Tax have different tax brackets for single filers and couples filing together. The Federal Income Tax also recognizes filing as 'Head of Household', for unmarried individuals filing supporting one or more qualified dependants. For the California Income Tax, we apply the Single tax brackets to Head of Household filers.
  • Total Earnings: Your total earnings for this tax period, including all employment income, without any deductions applied. This may also be called your gross income.
  • Standard Deduction: If you do not wish to file an itemized deduction, you may deduct the applicable standard deduction from yout gross income before calculating your Federal and California income tax. The California standard deduction for a single taxpayer is $0. Unless you have enough qualifying expenses to claim a larger itemized deduction, you should claim the standard deduction on your California tax return.
  • Itemized Deduction: An itemized deduction is a listing of all the qualifying expenses you wish to deduct from your pre-tax income. These may include charitable donations, mortgage interest, certain business expenses, and a wide variety of other items. While small busness owners and high-income taxpayers may benefit from filing an itemized deduction, most taxpayers choose to claim the standard deduction.
  • Single Exemption: If you claim yourself as a dependant, you get a single exemption deducted from your pre-tax income. The California single exemption for an unmarried taxpayer is $0.
  • Dependent Deduction: You can deduct one dependent exemption from your pre-tax income for every qualified person, including family and children, who lives with and is financially supported by you. The California dependent deduction for an unmarried taxpayer is $0 per dependent.
  • Tax Withholding: Most employees will have a percentage of each paycheck withheld automatically for payroll tax, the federal income tax, and the California income tax. At the end of the year, your total tax withholding will be listed on the W-4 or 1099 form provided by your employer. Your withholding amount determines the amount you owe (or the size of the refund check you receive) after April 15th.
  • Tax Refund: If your the amount of money you already paid the government through tax withholding exceeds the amount you owe after all of your deductions and tax credits, you will receive income tax refund checks from the Internal Revenue Service and the California to make up the difference.

[-] How accurate is the income tax calculator?

As anyone who's ever faced our 16,000+ page tax code knows, income taxes in the United States are very complicated - far too complicated to condense into simple calculator! However, for the majority of California taxpayers, a fairly accurate estimation can be made by accounting only for filing status and major deductions like your dependants and federal state income tax deductions.
Because there are thousands of special-case tax deductions and special rates for specialized income like capital gains and investments, the more complicated your average tax return is the less accurate you can expect this calculator to be. On the next page, you will be able to include more details (such as
  • If you have a simple return, you can generally expect to owe less then your estimate if you qualify for deductions or exemptions we don't account for.
  • If you have a complicated return or have a high yearly income, this calculator may give you an underestimate of your tax liability. We account for many credit phase-outs and special income tax rates on advanced income, but some taxes applicable to higher-income taxpayers are not calculated (such as the Alternative Minimum Tax).