BarwertNet

BarwertNet is a .NET-based library for financial analysis focused on present value calculations and related valuation metrics. It provides functions to discount cash flows, compute net present value (NPV), internal rate of return (IRR), and modified IRR, as well as support for scenario and sensitivity analyses.

The project originated to supply a transparent, open-source toolkit for time-value-of-money calculations within the .NET ecosystem. It targets developers and financial analysts who build applications in C# or F#, and is distributed under an open-source license. BarwertNet emphasizes cross-platform compatibility on Windows, Linux, and macOS through .NET Core and later runtimes.

Key features include support for irregular cash-flow schedules, multiple discount-rate inputs (constant, variable, or data-driven), and risk-adjusted discounting. It offers Monte Carlo simulations for uncertainty, scenario analysis, and reporting utilities. The API is designed for testability and easy integration with existing models, with immutable value objects and a modular valuation engine.

In practice, BarwertNet can be used for project appraisal, capital budgeting, and teaching environments where transparent, auditable calculations are valued over proprietary software. It aims to complement or replace ad-hoc spreadsheets by providing reproducible results within software projects.

See also: present value, net present value, discounting, internal rate of return, financial modeling.