OpenTaxSolver (OTS) is a free program for calculating Tax Form entries and tax-owed or refund-due, such as Federal or State personal income taxes.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux


OpenTaxSolver (OTS) is a free program for calculating Tax Form entries and tax-owed or refund-due, such as Federal or State personal income taxes.


We help you prepare your tax return online in simple easy to follow 3 steps (income, deduction, credit) with helpful hints along the way. Our goal is to take the stress out of tax filing and maximize your refund.
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