Step 2 of 4 · ProjectsTax engines
Cost-of-Capital-Calculator
Calculates the cost of capital and effective tax rates on new investment.
What it does
Python model that computes the cost of capital and effective tax rates on new investment under US federal tax, by asset type and industry, for corporate and non-corporate firms, baseline and reform; with Tax-Calculator for individual tax changes. It installs with pip or conda on Python 3.11 to 3.13; a web app covers the business-tax case. The README says results change as the models improve.
Where it fits on the map
Similar projects
Of the same kind, for a shared jurisdiction or tax area. Not a ranking.
- accounting-harnessDeterministic accounting and audit harness with an ASC 740 module for the current and deferred provision.
- CIT24AI-assisted Thai corporate income tax provision and compliance platform, from ledgers to filings.
- IRS Fact GraphKnowledge-graph rules engine that models the US Internal Revenue Code, the calculation core of Direct File.
- IRS Form BuilderScala library that turns flow XML, fact dictionaries and locale files into questionnaire sites on Fact Graph.
- OG-CoreOverlapping-generations model framework for evaluating the economic effects of fiscal policy.
- OpenFileFree tax filing tool built on the published code of IRS Direct File.For individual taxpayers
Maintain this project?
Link to this page from your README, so readers find the facts, the notes and where it fits. The badge is a small SVG served from this site.
[](https://tax-oss.com/projects/cost-of-capital-calculator/)