✦TaxStackHub ← All Tools
Free Embed Widgets

Add a Tax Calculator
to Your Website

Give your readers instant tax answers — right on your page. Copy one line of HTML. No API key, no signup, no cost.

1 Pick a calculator
2 Choose size
3 Copy the code
Configure Embed
Calculator
Size
Embed Code
HTML
Live Preview Open full page ↗
taxstackhub.ai/embed/se-tax-calculator
Why embed TaxStackHub tools?
⚡
Free, forever
No API key, no signup, no rate limits. The calculators are free to embed on any website.
🎯
Your readers win
Give readers instant SE tax, QBI, and entity answers without leaving your article. Higher engagement, lower bounce rate.
🔄
Always up to date
We update tax constants every year. Your embedded calculator automatically reflects the latest rates — no maintenance on your end.
📐
Responsive
Works on any screen size. Clean white background looks great on any site design without clashing.
🔒
Privacy-respecting
No cookies dropped on your visitors. All calculations run client-side in the browser. No tracking pixels.
✦
Built by TaxStackHub
Sourced from IRS.gov and SSA.gov. The same tools trusted by thousands of freelancers and small business owners.
Alternative: Inline JS Widget

One script tag. Works anywhere.

Don't want an iframe? Drop this script tag anywhere in your HTML and a fully functional SE tax calculator renders inline — no iframe, no dependencies, no config.

  • Self-contained — no external CSS or JS dependencies
  • Auto-inserts before the script tag if no container specified
  • Or target a specific <div data-tsh-widget="se-tax-calculator">
  • Under 50KB uncompressed
  • Includes "Powered by TaxStackHub" attribution link
HTML — simplest usage
<script src="https://taxstackhub.ai/embed/se-tax-calculator.js"></script>
HTML — with container
<div data-tsh-widget="se-tax-calculator"></div> <script src="https://taxstackhub.ai/embed/se-tax-calculator.js"></script>
Link to us — Badge
Free Tax Tools by TaxStackHub
SVG

Show you use TaxStackHub.

If you embed our tools or link to us in your content, add a badge. Freelancers and finance bloggers use it to signal they use quality, free tools. It's a backlink that looks intentional.

HTML — badge with link
<a href="https://taxstackhub.ai" rel="noopener"> <img src="https://taxstackhub.ai/badge/taxstackhub-badge.svg" alt="Free Tax Tools by TaxStackHub" width="220" height="56"> </a>
For Content Creators — Tax Stats API

Free tax data. No API key.

Pull 2026 IRS figures, freelancer benchmarks, and bracket data directly into your articles. JSON. CORS-open. Free. Just include the attribution link from the response.

GET https://taxstackhub.ai/api/public/tax-stats
JavaScript
const res = await fetch('https://taxstackhub.ai/api/public/tax-stats'); const data = await res.json(); // Required: include attribution in your published content console.log(data.attribution.html); // → <a href="https://taxstackhub.ai">TaxStackHub — Free Tax Tools</a> console.log(data.se_tax.rate_total_pct); // → 15.3 console.log(data.se_tax.social_security_wage_base_usd); // → 184500