Visitors run their own numbers on your site. Every run that asks for the full analysis lands in your inbox as a named lead with the deal attached — and the report they keep has your name on it, not ours.
The analyzer is free and unlimited. The website calculator is $199/mo.
Every figure below is computed by the same engine that runs inside the product, on the server, with no account. If it disagreed with Basis it would be a bug.
Want the whole thing — sensitivity grid, rent-vs-buy, hold-vs-sell, the sale analysis? Open the full demo, still without an account.
Paste this wherever you want the calculator to appear. It sizes itself to the space, carries your name and colours, and works on any site that lets you add HTML.
<script src="https://your-basis-url/embed.js" data-key="YOUR_KEY"></script>
Enters a price and a rent, sees cash flow and cap rate, then asks for the full breakdown. They give a name and an email to get it.
The full report is sent automatically, branded to you, with a link that works. The promise the widget makes is one the software keeps.
Illustration. Real leads carry the figures the visitor actually entered, and push straight into your CRM.
Practice is $199 a month flat, however many leads it captures. Drag the slider to whatever you think is realistic for your traffic.
The honest caveat: this converts traffic you already have. It does not create traffic. If nobody visits your site today, a calculator on it will not fix that — and any vendor telling you otherwise is selling you something else.
Google Ads and Zillow figures are 2026 industry benchmarks, not our numbers. Zillow varies by ZIP, home value and competition.
When they do, you either look sophisticated or you look careless — and it is your name on the report either way. Most rental calculators are built by developers rather than underwriters, and four accounting shortcuts show up again and again. They all push the same direction: the deal looks better than it is.
Computed live, by the engine above, with each treatment pinned by the test suite.
Your buyer probably cannot tell correct underwriting from incorrect underwriting. That is rather the point — you carry the exposure when a number you handed someone turns out to be wrong, and the repeat investor client, the one worth ten of a one-time buyer, is exactly the client who has a CPA.
The analyzer is free and unlimited — all three models, the sensitivity grid, the listing importer. You pay when you want the report to carry your brand instead of ours, and again when you want the calculator working on your own site.
Annual is two months free. No lead is ever hidden behind a paywall — if someone raises their hand on your site, you get them.
Basis is a modelling tool. It is not a substitute for professional advice, and nothing it produces should be treated as a recommendation to buy, sell or hold anything.
The tax treatment here is modelled carefully, but it is a model. Tax law is specific to your circumstances and changes over time. Nothing in Basis is prepared by a tax professional or constitutes tax advice. Consult a CPA or qualified tax adviser before relying on any figure for a filing or a purchase decision.
Basis is not a registered investment adviser, broker-dealer or financial planner, and no output is a recommendation, solicitation or offer to buy or sell any property or security. Investing in real estate carries risk, including loss of principal.
Every forward-looking figure — rent growth, appreciation, expenses, exit value, IRR — depends entirely on assumptions you or your agent enter. Actual results will differ, and no result shown is guaranteed or promised.
Imported and estimated figures come from listings and public sources that may be inaccurate or out of date. Confirm taxes, insurance, rent and condition independently before acting on any analysis.
Using this calculator does not create a client, agency, advisory or fiduciary relationship with Basis. Reports shared by an agent reflect that agent's own assumptions and are their responsibility, not ours.