Put the Seller Financing Calculator on Your Site

You can embed a focused Seller Finance Lab calculator on your own website without rebuilding the note math yourself.

The embedded version is intentionally smaller than the full Lab. Visitors enter the purchase price, cash down, rate, amortization, and balloon, then immediately see the monthly principal-and-interest payment, seller-financed note amount, and estimated balloon payoff.

Copy and paste this embed

<iframe src="https://xovionlabs.com/seller-finance/embed/calculator/" title="Seller Financing Calculator" width="100%" height="560" style="border:0;border-radius:20px;overflow:hidden" loading="lazy"></iframe>
<p style="font:12px system-ui,sans-serif;color:#6b7280">Free calculator by <a href="https://xovionlabs.com/seller-finance/">Seller Finance Lab</a>.</p>

Please keep the small attribution link below the iframe. That link supports the free tool and gives readers a direct route to the full Seller Finance Lab when they need reverse math, property analysis, schedules, or negotiation tools.

What your visitors can calculate

• Monthly principal-and-interest payment
• Seller-financed note amount
• Estimated balloon payoff

The full Seller Finance Lab remains available for reverse payment-to-price math, property cash flow, interest-only structures, full amortization schedules, and deal solving.

Send readers straight to the amortization schedule, the reverse calculator, or the 30-year amortization with a 5-year balloon example when that is the job.

Recommended embed size

Use 100% width so the calculator adapts to your content column. A height of about 560px works well for most desktop article layouts. Narrow mobile layouts may need closer to 620px.

If your site uses a narrow article column, keep the iframe full-width inside that column rather than forcing a fixed desktop width. The calculator itself is responsive.

Who this is useful for

The embed works well on pages explaining creative finance, owner financing, seller-carried notes, balloon payments, real-estate acquisitions, or deal structuring.

It can also be useful inside educational resource libraries, broker knowledge centers, investor association websites, and articles that would otherwise send readers to a separate calculator.

You do not need to create an account, send visitor contact information to Seller Finance Lab, or install a script bundle. It is a standard iframe.

Why the attribution stays with the embed

The calculator is free to use and the attribution is intentionally small. Keeping it in place gives visitors access to the full methodology, worked examples, and future calculator updates while helping us continue maintaining the tool without charging sites to embed it.

You are welcome to add your own explanation above or below the calculator. Just avoid presenting the underlying note math as legal, tax, or individualized investment advice.

What happens when the calculator improves?

Because the iframe loads the hosted calculator, improvements appear automatically. You do not need to replace JavaScript bundles or update a plugin when we improve the compact interface or calculations.