En-ROADS does not currently incorporate the revenue from pricing mechanisms (such as a tax on a fuel, or a carbon price) into its economic calculations. However, you can use the “Revenue & Cost from Energy Taxes & Subsidies” and “Net Revenue from Energy Taxes & Subsidies” graphs under the Financial graphs to examine the revenue generated by pricing mechanisms. 

Here's an example of a scenario where all taxes and subsidies have been removed and a $50/ton CO2 carbon price implemented, showing the amount of revenue generated by the carbon price: