Open Tax Solver (OTS) is an open source, easy-to-use, cross-platform, simple and free graphical software implemented in C and designed from the offset to be used for calculating Tax Form entries, refund-due, as well as tax-owed for State or Federal personal income taxes.
Features at a glance
The application is packed with many forms, including the ones for Scheds A, B, C, D, L, US 1040, as well as forms for several states. The software lets users to easily compute taxes and edit tax information. An optional command-line interface is also provided.
Its graphical user interface (GUI) is as simple and intuitive as possible. It features no menus or toolbar, just a single, resizable dialog that asks users to select a tax program (US 1040 (with Scheds A, B, D), USD 1040 Sched C, US 8829, CA State 540, NC State DC400, NJ State 1040, OH State IT1040, PA State 40, VA State 760, NY State IT201, MA State 1 or other), as well as to open a tax file or template.
Under the hood and supported operating systems
The Open Tax Solver software is written entirely in the C programming language, using the GTK+ GUI toolkit for its graphical user interface. It is engineered to run on GNU/Linux, Microsoft Windows and Mac OS X operating systems.
For your convenience, the software is distributed as pre-built binaries for 64-bit and 32-bit instruction set architectures, which can be used without installation on any distribution of Linux. The project’s source code is distributed on Subversion.
Getting started with Open Tax Solver
To use the application, simply download the binary package that corresponds to your computer’s architecture (64-bit or 32-bit), save the archive somewhere on your computer, extract it, open the extracted folder and double-click on the ‘Run_taxsolve_GUI’ executable. To build taxsolve packages, double-click on the Build_taxsolve_packages_LINUX.sh script.
What is new in this release:
- Package contains US 1040 Federal taxes, Schedules A, B, C, D, and forms 8949, all updated for the 2014 tax-year. Also includes updated State-Tax versions for several of the largest states: CA, NY, MA, VA, OH, NC, NJ, and PA.
What is new in version 13.04:
- Package contains US 1040 Federal taxes, Schedules A, B, C, D, and forms 8949, all updated for the 2014 tax-year. Also includes updated State-Tax versions for several of the largest states: CA, NY, MA, VA, OH, NC, NJ, and PA.
What is new in version 13.02:
- Package contains US 1040 Federal taxes, Schedules A, B, C, D, and forms 8949, all updated for the 2014 tax-year. Also includes updated State-Tax versions for several of the largest states: CA, NY, MA, VA, OH, NC, NJ, and PA.
What is new in version 13.00:
- Package contains US 1040 Federal taxes, Schedules A, B, C, D, and forms 8949, all updated for the 2014 tax-year. Also includes updated State-Tax versions for several of the largest states: CA, NY, MA, VA, OH, NC, NJ, and PA.
What is new in version 12.02:
- Package contains US 1040 Federal taxes, Schedules A, B, C, D, and forms 8949, all updated for the 2014 tax-year. Also includes updated State-Tax versions for several of the largest states: CA, NY, MA, VA, OH, NC, NJ, and PA.
What is new in version 12.01:
- Package contains US 1040 Federal taxes, Schedules A, B, C, D, and forms 8949, all updated for the 2014 tax-year. Also includes updated State-Tax versions for several of the largest states: CA, NY, MA, VA, OH, NC, NJ, and PA.
What is new in version 11.02:
- A new GUI for OTS was posted for downloading.
- The new GUI is based on Gtk, which offers an improved look and feel.
- It is now set as the default user interface in the regular OTS distribution package for Linux and Microsoft users.
- The older GUI is still included in case there are any problems with the new one.
- A user feedback survey was added to the webpage.
- The updated tax programs for this year remain stable.
What is new in version 11.01:
- A fix was made for Line 27 of the US 1040 Qualified Dividends and Capital Gain Tax Worksheet in the US-1040 program.
- Additionally, some tool-tips, or hover-notes, were added in the OTS-GUI to provide hints about some of the button functions.
What is new in version 9.01:
- This version includes a fix in line 42 of the US Federal 1040 program, as well as additional worksheet printouts.
- Some further improvements have been made to the GUI appearance, and additional comments have been added on the 1040 template form.
- The comments indicate which boxes on W-2 form the line values should come from.
What is new in version 8.07:
- This is a minor update on last year's (tax-year 2010) US 1040.
- It includes additional printouts in the Carry-over worksheet, and a fix on line 6 of Schedule-L.
- The new 2011 version of OTS for this year is undergoing testing and is expected to be released next week.
What is new in version 8.01:
- This is the initial version for the 2010 tax year.
- It contains US1040, with schedules A, B, C, D, and new this year, schedule L.
- It also contains updated versions for States CA, VA, OH, NC, NJ, and PA.
- Some further improvements were made to the GUI.
- Updates for MA and NY will be posted soon.
What is new in version 6.05:
- Recompiled GUI due to fix in Otk graphics library of missing text-cursor.
What is new in version 6.04:
- Long overdue improvements to the GUI.
- Fixed comments in USFed 1040 template file, lines 28 + 29.
- Fixed comments in CA State template file, lines 13 + 18.
- Added quotes in Build file to handle file paths with spaces in them.
- Added dependencies in Make-files.
- Added check for doing Sched-D in AMT calculation of line 40.
- Fixed typo in CA State tax calculation for Head_of_Household amounts above 64050.
- Added program, template, and make-file entries for contributed form 8829.
What is new in version 6.03:
- Minor improvements to the GUI.
What is new in version 6.02:
- Added VA, NY, and MA State Tax solvers for 2008.
What is new in version 6.01:
- Tax solvers were added for the states of PA, OH, NJ, and NC. All were updated for the 2008 tax year.
- This release also contains the US Federal and California solvers, which had been previously updated.
What is new in version 6.00:
- Initial release for 2008 tax-year.
- Contains US-1040, and California State Taxes.
- Check back soon for updates.
- Additional states to be added for 2008, as well.
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