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Data effective: 2026 tax year · Last updated: 2026-07-16

Tax Refund Estimator

Will you get a refund or owe the IRS? Estimate your 2026 tax outcome.

Estimated Amount Owed

$2,335

Effective Tax Rate: 21.8%

CategoryAmount
Federal Income Tax$7,670
FICA (SS + Medicare)$5,738
State Income Tax (California)$2,928
Total Tax Liability$16,335
Federal Tax Withheld$9,000
State Tax Withheld$5,000
Total Withheld$14,000
Researched by CentCalc Financial Editorial TeamData: IRS 2026 withholding tables (estimate)

How This Is Calculated

This estimator compares your total tax liability against your total withholding for the year to project whether you will receive a refund or owe a balance.

Total tax liability includes federal income tax (calculated using 2026 tax brackets and your filing status), FICA tax (Social Security 6.2% + Medicare 1.45%), and state income tax based on the state you select.

Refund or amount owed = Total Withheld − Total Tax Liability. A positive result means a refund; a negative result means you owe the IRS.

Effective tax rate = Total Tax ÷ Gross Income, showing the percentage of your income that goes to taxes.

Based on IRS 2026 tax brackets. FICA: 6.2% SS (up to 184,500) + 1.45% Medicare. State income tax varies by state. Does not include deductions, credits, or additional Medicare surtax. Estimates only — consult a tax professional.

Frequently Asked Questions

How is my tax refund calculated?
Your tax refund (or amount owed) is the difference between the total tax you owe for the year and the total tax you have already paid through withholding. If your withholding exceeds your total tax liability, you receive a refund.
What is FICA tax?
FICA includes Social Security tax (6.2% on income up to $184,500 in 2026) and Medicare tax (1.45% on all wages). It is separate from income tax and is automatically withheld from your paycheck.
Why do I owe taxes instead of getting a refund?
You owe taxes when your total withholding is less than your actual tax liability. This can happen if you have too few allowances on your W-4, have significant non-wage income, or experienced a life change like a new job with higher pay.
How can I increase my tax refund?
Adjust your W-4 withholding, contribute to tax-advantaged accounts like a 401(k) or traditional IRA, claim all eligible deductions and credits, and keep records of deductible expenses.
Is a big tax refund a good thing?
Not necessarily. A large refund means you overpaid the government throughout the year — essentially giving the IRS an interest-free loan. Financial advisors recommend adjusting your withholding so your refund is small.

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Estimates only. Does not include deductions, credits, or additional taxes like AMT or NIIT. State tax is approximate. Consult a tax professional for your actual tax situation.