This tool helps startup employees and equity holders calculate their vested equity value over time. It accounts for grant details, vesting schedules, and changing company valuations. Use it to align equity compensation with personal financial planning goals.
How to Use This Tool
Enter your total granted equity shares and the initial price per share from your grant agreement. Select your company’s vesting schedule from the dropdown, or choose Custom to input a unique vesting period. Pick how often your equity vests (monthly, quarterly, or annually) to match your grant terms.
Input the current share price of your company, which you can get from recent funding rounds or 409A valuations. Add the time elapsed since your grant was issued, using either months or years as the unit. Click Calculate Vesting to see your vested shares, current value, unvested equity, and vesting progress.
Use the Reset button to clear all fields and start a new calculation. Once results are displayed, click Copy Results to save the breakdown to your clipboard for financial planning records.
Formula and Logic
This calculator uses standard time-based vesting logic common in startup equity grants:
- Vesting percentage is calculated based on time elapsed relative to your total vesting period, accounting for any cliff periods.
- For schedules with a 1-year cliff, no equity vests until 12 months have passed since the grant date. After the cliff, vesting proceeds linearly for the remaining vesting period.
- Vested shares = (vesting percentage / 100) * total granted shares.
- Vested value = vested shares * current share price.
- Unvested shares and value are calculated as the remaining balance of the total grant minus vested amounts.
All time inputs are converted to months for consistent calculation, and results are capped at 100% vesting when the full vesting period has elapsed.
Practical Notes
Startup equity vesting terms vary widely, so always refer to your official grant agreement for exact details. 409A valuations determine the fair market value of common stock for tax purposes, which may differ from preferred stock prices in funding rounds.
- Cliff periods are designed to incentivize employees to stay with the company for at least one year before any equity vests.
- Equity value is not guaranteed, as private company share prices can fluctuate or become illiquid if the company does not exit or go public.
- For US taxpayers, vested equity is taxed as ordinary income at the time of vesting based on the current fair market value per share.
- Consider consulting a financial planner to integrate equity compensation into your broader personal financial plan, especially for exercise planning or tax optimization.
Why This Tool Is Useful
Startup employees often receive equity as a significant portion of their compensation, but vesting schedules can be complex to track manually. This tool eliminates guesswork by automatically calculating vested amounts based on your specific grant terms and current company valuation.
It helps you make informed financial decisions, such as budgeting for tax liabilities on vested equity, planning for major purchases, or evaluating job offers with equity components. The detailed breakdown and progress tracking also make it easy to share updates with financial advisors or tax professionals.
Frequently Asked Questions
What is a vesting cliff?
A vesting cliff is a period (usually 1 year) at the start of your vesting schedule where no equity vests. After the cliff period ends, you vest all equity accrued during that initial period at once, then continue vesting on the set schedule (monthly, quarterly, etc.).
How do I find my company’s current share price?
For private startups, the current share price is typically set by the most recent 409A valuation (for common stock) or the price of the latest preferred stock funding round. You can request this information from your company’s HR or finance team.
Are unvested shares included in my taxable income?
No, unvested shares are not taxed until they vest. When shares vest, the fair market value of the shares on the vesting date is added to your ordinary income for the tax year, and you will receive a W-2 or 1099 form reporting this income.
Additional Guidance
Always verify calculator results against your official equity grant documents, as some grants may include performance-based vesting or other non-standard terms not accounted for here. If your company has a double-trigger vesting policy (vesting only upon acquisition or IPO), this calculator may not reflect your actual vesting timeline.
Regularly update the current share price input as your company completes new funding rounds to keep your vested value estimates accurate. For complex equity structures like stock options (ISOs or NSOs), consult a tax professional to understand exercise costs and tax implications beyond basic vesting value.