OpenTaxSolver is an open source application for US taxpayers to calculate their state and federal income tax returns
The Internal Revenue Service's (IRS's) Use of federal tax information (FTI) in open source software webpage offers a large amount of information, and it's especially relevant to anyone who may want to start their own open source tax software project. To hit the finer points:Federal tax information (FTI) can be used in any open source...
