The tax code is legislation and they're the government. Instead of trying to translate it from old COBOL spaghetti code, discard the existing code and implement

The tax code is legislation and they're the government. Instead of trying to translate it from old COBOL spaghetti code, discard the existing code and implement a new system from the tax code. And while you're having a bunch of lawyers go through the tax code in order to do this, have them recommend simplifications to make it easier, so that instead writing new complicated software, you write new simpler tax laws.