// multi-utility computation suite · offline · instant · precise
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fin.Laffer-curve-tax-revenue Calculator
Calculates tax revenue at each tax rate using a quadratic Laffer Curve model and identifies the revenue-maximising tax rate. Different studies estimate the revenue-maximising marginal income tax rate between 50% and 80% — well above current rates in most countries.
Inputs
T Tax Rate Pct
Percentage paid as tax. After-tax return = pre-tax return × (1 − tax rate). Enter as a percentage (e.g. 25 for 25%).
Gdp Base
Reference formula or conversion factor shown for context.
Elasticity
Reference formula or conversion factor shown for context.
Results
tax revenue R
Sample size or count used in the calculation.
revenue-maximizing tax rate t*
The value at the specified point or condition.
maximum revenue R_max
The largest value in the dataset or feasible range.
current R as % of R_max
Electric charge flow rate (A). Governs wire sizing — too much current causes dangerous heating. Fuses protect circuits from overcurrent.
Laffer curve
Reference formula or conversion factor shown for context.
current rate vs optimal
Electric charge flow rate (A). Governs wire sizing — too much current causes dangerous heating. Fuses protect circuits from overcurrent.