How do I simulate a tax policy?

Open this page and use the live Laffer Curve tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive a tax policy from your own measurements.

Use case · powered by Laffer Curve

Laffer Curve for a tax policy

Simulate a tax policy live in your browser. This runs the real Laffer Curve solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:Students Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders

Laffer CurveLive

tax rate vs revenue

Controls

Presets

Behavioral response

Tax rate

At a 0% tax rate the government collects nothing; at 100% no one bothers to earn taxable income, so it also collects nothing. Somewhere between lies a revenue-maximizing rate — the peak of the Laffer curve. How responsive people are to taxes (the elasticity) sets where that peak falls. It is descriptive, not a policy prescription.

▶ Run in Python

Data Inspector

Revenue at rate0.278

Revenue-max rate55%

Zonebelow peak

Governing equation

R (t) = t B (t) = t (1 - t^{1.5}), \frac{d R}{d t}_{t^{*}} = 0, t = 0.35

Reading this result: Below the revenue-maximizing rate (≈55%) — the base is still large, so a modest rate increase collects more.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

or unlock everything with Pro →

About this simulation

The full Laffer Curve tool models a tax policy with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

More you can do with Laffer Curve

Laffer Curve for a supply-demand market Laffer Curve for a monopoly Laffer Curve for an auction Laffer Curve for a trade tariff Laffer Curve for an inflation model Laffer Curve for a labor market Laffer Curve for a game-theory standoff Laffer Curve for a price war

Other ways to simulate a tax policy

Supply & Demand for a tax policy Price Elasticity for a tax policy Monopoly Pricing for a tax policy Cobb-Douglas for a tax policy Lorenz & Gini for a tax policy Comparative Advantage for a tax policy

Frequently asked questions

How do I simulate a tax policy?: Open this page and use the live Laffer Curve tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive a tax policy from your own measurements.