Free Tax Calculator Widgets
for Your Website
Add professional tax calculators to your website with a single line of code. No signup, no cost, no data risk. Updated for the 2026 tax year.
Zero Setup
Copy one line of code. That's it. No API keys, no registration, no configuration files.
No Data Risk
All calculations run in your visitors' browsers. No data flows through your servers or ours.
Always Current
Calculators auto-update with the latest 2026 tax brackets. No maintenance on your end.
Fully Responsive
Widgets adapt to any screen size. Set width to 100% and they'll work on mobile, tablet, and desktop.
How It Works
Copy the Code
Click “Copy Code” on any widget card below to copy the iframe embed snippet.
Paste into Your Site
Drop the iframe code into your HTML, CMS, or page builder where you want the calculator.
Done!
The calculator appears on your site, auto-updating with the latest 2026 tax data.
Available Widgets
20 free calculators ready to embed on your website.
Paycheck Calculator
Most PopularEstimate your take-home pay after federal, FICA, and state income taxes. Supports all 50 states with 2026 brackets.
<iframe src="https://thetaxcalc.com/paycheck-calculator?embed=1" width="100%" height="700" frameborder="0" style="border-radius:12px;" title="Free paycheck calculator by TheTaxCalc"></iframe>
Mortgage Calculator
PopularCalculate monthly payments, amortization schedules, and see how extra payments save you thousands in interest.
<iframe src="https://thetaxcalc.com/mortgage-calculator?embed=1" width="100%" height="700" frameborder="0" style="border-radius:12px;" title="Free mortgage calculator by TheTaxCalc"></iframe>
Sales Tax Calculator
All 50 StatesGet combined state + local sales tax rates for all 50 states. Perfect for e-commerce and retail sites.
<iframe src="https://thetaxcalc.com/sales-tax-calculator?embed=1" width="100%" height="600" frameborder="0" style="border-radius:12px;" title="Free sales tax calculator by TheTaxCalc"></iframe>
Capital Gains Calculator
2026 RatesEstimate short-term and long-term capital gains tax based on your income, filing status, and holding period.
<iframe src="https://thetaxcalc.com/capital-gains-calculator?embed=1" width="100%" height="650" frameborder="0" style="border-radius:12px;" title="Free capital gains calculator by TheTaxCalc"></iframe>
Self-Employment Tax Calculator
FreelancersCalculate your self-employment tax (Social Security + Medicare), quarterly estimates, and deductible half.
<iframe src="https://thetaxcalc.com/self-employment-tax-calculator?embed=1" width="100%" height="650" frameborder="0" style="border-radius:12px;" title="Free self employment tax calculator by TheTaxCalc"></iframe>
401(k) Retirement Calculator
2026 LimitsProject your retirement savings with employer match, catch-up contributions, and compound growth scenarios.
<iframe src="https://thetaxcalc.com/401k-retirement-calculator?embed=1" width="100%" height="700" frameborder="0" style="border-radius:12px;" title="Free 401k retirement calculator by TheTaxCalc"></iframe>
Illinois Tax Calculator
IL — 4.95%Compute take-home pay in Illinois with the 4.95% flat income tax rate. Includes local tax considerations.
<iframe src="https://thetaxcalc.com/illinois-tax-calculator?embed=1" width="100%" height="650" frameborder="0" style="border-radius:12px;" title="Free illinois tax calculator by TheTaxCalc"></iframe>
Texas Tax Calculator
TX — 0%Calculate your take-home pay in Texas with 0% state income tax. Only federal and FICA taxes apply.
<iframe src="https://thetaxcalc.com/texas-tax-calculator?embed=1" width="100%" height="650" frameborder="0" style="border-radius:12px;" title="Free texas tax calculator by TheTaxCalc"></iframe>
Florida Tax Calculator
FL — 0%Compute your Florida paycheck with 0% state income tax. Great for retirees and remote workers.
<iframe src="https://thetaxcalc.com/florida-tax-calculator?embed=1" width="100%" height="650" frameborder="0" style="border-radius:12px;" title="Free florida tax calculator by TheTaxCalc"></iframe>
California Tax Calculator
CA — 1%–13.3%Estimate take-home pay in California with progressive 1%–13.3% state income tax and SDI.
<iframe src="https://thetaxcalc.com/california-tax-calculator?embed=1" width="100%" height="650" frameborder="0" style="border-radius:12px;" title="Free california tax calculator by TheTaxCalc"></iframe>
New York Tax Calculator
NY — 4%–10.9%Calculate your NYC/NY paycheck with progressive 4%–10.9% state tax and city tax considerations.
<iframe src="https://thetaxcalc.com/new-york-tax-calculator?embed=1" width="100%" height="650" frameborder="0" style="border-radius:12px;" title="Free new york tax calculator by TheTaxCalc"></iframe>
Georgia Tax Calculator
GA — 5.49%Estimate your Georgia take-home pay with the 5.49% flat income tax rate and standard deductions.
<iframe src="https://thetaxcalc.com/georgia-tax-calculator?embed=1" width="100%" height="650" frameborder="0" style="border-radius:12px;" title="Free georgia tax calculator by TheTaxCalc"></iframe>
Virginia Tax Calculator
VA — 2%–5.75%Compute your Virginia paycheck with progressive 2%–5.75% state income tax brackets.
<iframe src="https://thetaxcalc.com/virginia-tax-calculator?embed=1" width="100%" height="650" frameborder="0" style="border-radius:12px;" title="Free virginia tax calculator by TheTaxCalc"></iframe>
Relocation Calculator
State vs StateCompare your take-home pay between two states. See how much more (or less) you keep after moving.
<iframe src="https://thetaxcalc.com/relocation-calculator?embed=1" width="100%" height="700" frameborder="0" style="border-radius:12px;" title="Free relocation calculator by TheTaxCalc"></iframe>
Tax Refund Calculator
Refund EstimateEstimate your 2026 tax refund or amount owed. Based on withholding vs actual tax liability.
<iframe src="https://thetaxcalc.com/tax-refund-calculator?embed=1" width="100%" height="650" frameborder="0" style="border-radius:12px;" title="Free tax refund calculator by TheTaxCalc"></iframe>
Overtime Tax Calculator
OT PayCalculate the after-tax value of overtime pay. See if the extra hours are worth it after taxes.
<iframe src="https://thetaxcalc.com/overtime-tax-calculator?embed=1" width="100%" height="650" frameborder="0" style="border-radius:12px;" title="Free overtime tax calculator by TheTaxCalc"></iframe>
Lottery Tax Calculator
Prize WinningsFind out how much you keep after federal and state taxes on lottery, sweepstakes, or prize winnings.
<iframe src="https://thetaxcalc.com/lottery-tax-calculator?embed=1" width="100%" height="650" frameborder="0" style="border-radius:12px;" title="Free lottery tax calculator by TheTaxCalc"></iframe>
IRS Withholding Calculator
W-4 HelperOptimize your W-4 withholding to avoid overpaying or underpaying. Adjust for life changes.
<iframe src="https://thetaxcalc.com/irs-withholding-calculator?embed=1" width="100%" height="650" frameborder="0" style="border-radius:12px;" title="Free irs withholding calculator by TheTaxCalc"></iframe>
Property Tax Calculator
All 50 StatesEstimate annual property tax for all 50 states. Compare effective rates and median payments.
<iframe src="https://thetaxcalc.com/property-tax-calculator?embed=1" width="100%" height="650" frameborder="0" style="border-radius:12px;" title="Free property tax calculator by TheTaxCalc"></iframe>
Bonus Tax Calculator
22% Flat RateCalculate tax on bonuses using the 22% flat rate or aggregate method. See your actual take-home.
<iframe src="https://thetaxcalc.com/bonus-tax-calculator?embed=1" width="100%" height="650" frameborder="0" style="border-radius:12px;" title="Free bonus tax calculator by TheTaxCalc"></iframe>
Free Badges
Add a “Powered by TheTaxCalc” badge to your site. Free, no signup.
Link to Us
Copy and paste any of these HTML snippets to link to our calculators.
<a href="https://thetaxcalc.com" title="Free Tax Calculator">Free Tax Calculator — TheTaxCalc</a>
<a href="https://thetaxcalc.com/paycheck-calculator" title="Free Paycheck Calculator 2026">Free Paycheck Calculator — TheTaxCalc</a>
<a href="https://thetaxcalc.com/mortgage-calculator" title="Free Mortgage Calculator 2026">Free Mortgage Calculator — TheTaxCalc</a>
<a href="https://thetaxcalc.com/sales-tax-calculator" title="Free Sales Tax Calculator — All 50 States">Free Sales Tax Calculator — TheTaxCalc</a>
<a href="https://thetaxcalc.com/capital-gains-calculator" title="Free Capital Gains Tax Calculator">Capital Gains Calculator — TheTaxCalc</a>
<a href="https://thetaxcalc.com/401k-retirement-calculator" title="Free 401k Retirement Calculator">401(k) Calculator — TheTaxCalc</a>
<a href="https://thetaxcalc.com/self-employment-tax-calculator" title="Free Self-Employment Tax Calculator">Self-Employment Tax Calculator — TheTaxCalc</a>
<a href="https://thetaxcalc.com/resources" title="2026 Tax Brackets, Rates & Data">2026 Tax Data & Rates — TheTaxCalc</a>
Embed Tax Data Tables
Embed authoritative 2026 tax data on your website. Journalists, bloggers, and educators — link freely.
Want raw data? Visit our Tax Data & Resources page for free, citable 2026 tax brackets, FICA rates, and more. Every section has a “Cite this data” button.
Widget FAQ
Are the widgets really free?
Do I need to sign up or create an account?
How do I embed a widget on my website?
Can I customize the widget size and appearance?
Are the calculators always up to date with current tax law?
Will the widget slow down my website?
Can I use multiple widgets on the same page?
Do I need to attribute or link back to TheTaxCalc?
Ready to Add a Widget?
Copy any embed code above and paste it into your website. It takes less than 30 seconds — no registration, no API keys, no configuration needed.