Your Tax Calculator

This income tax calculator is different from most other calculators you will find on the Internet.

• Calculates California state income taxes in addition to federal income taxes.
• Calculates the amount remaining in a current tax bracket. For example, you want to perform a partial 401K-to-Roth IRA conversion that will keep you in your current tax bracket.
• Calculates taxes on social security benefits. For example, you need to estimate the amount of taxes to withhold from your monthly social security check.
• Allows input for spouse's pay/pension and/or social security benefits if married filing jointly.
• Allows input for pay/pension and social security benefits on a monthly or annual basis.
• Provides an option to save your entries in your web browser's local storage.

Your Adjusted Gross Income (AGI) is your total (gross) income from all sources minus certain adjustments listed on Schedule 1 of Form 1040. Your AGI is calculated before you take your standard or itemized deduction on Form 1040.

Common income adjustments include alimony payments, educator expenses, business expenses, deductible HSA contributions, deductible IRA contributions, moving expenses (military only), deductible self-employment taxes, penalties on early savings withdrawal, retirement contributions (not withheld from paycheck), and student loan interest. You can enter real estate or capital gains losses here since this is such a simple calculator.

Income adjustments:

Your Federal standard deduction is $0.

Your State standard deduction is $0.

• Beginning with tax year 2026 (and until 2028), if you use the Federal standard deduction and do not itemize, you may deduct up to $1,000 ($2,000 if filing jointly) of your cash contributions to charitable organizations. Reference IRS Topic 506, Charitable contributions.
• Beginning with tax year 2025 (and until 2028), you may deduct up to $10,000 of car loan interest (even if you do not itemize) from your federal taxable income if the car had a final assembly in the United States. Reference IRS Rules for the One Big Beautiful Bill Car Loan Interest Deduction.
• Also, for non-itemizers, you should still submit itemized deduction information just in case you can use itemized deductions for your State return. Reference California itemized deduction adjustments.

(0) Child(ren) under 17 years old (federal child tax credit): $0

(0) Child(ren) under 19 years old or under 24 years old who are full-time students (California child exemption): $0

California Personal/Senior Exemptions: $0

• The federal Additional Child Tax Credit is not calculated.
• The federal medical and dental expense itemized deduction (over 7.5% of adjusted gross income) cannot be entered.
• Phaseouts and caps for certain tax benefits are not considered.