Employee Stock Options (ISO/NSO) Valuation Calculator
Model vested options, exercise cost, spread and hypothetical exit value for ISO or NSO scenarios with user-entered tax assumptions.
✓ No signup✓ Mobile friendly✓ Clear limitations✓ Browser-first where practical
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Why use this employee stock options (iso/nso) valuation calculator?
Use this free employee stock options (iso/nso) valuation calculator directly in your browser. There is no account to create and the result appears immediately.
How to use it
Start with the inputs shown above, review any options or assumptions, then generate the result. Where the tool creates a file, keep the original until you have opened and checked the downloaded output.
Frequently asked questions
Is this tool free?
Yes. The core tool is free to use.
Do I need an account?
No. You can use it without signing up.
Does it work on mobile?
Yes. Toolbox is designed for modern mobile and desktop browsers.