Capital gains calculator
Stack federal long-term / short-term gains, NIIT, and state tax on an RSU or ISO sale.
Capital gains calculator
Stack federal long-term / short-term capital gains, NIIT, and state tax on an RSU or ISO sale.
Net after tax: $268,390
2025 single filer · RSU basis equals vest-date FMV · ISO qualifying disposition may produce different treatment
How to read the result
The calculator stacks your capital gain on top of ordinary income, applies the federal 0 / 15 / 20% long-term brackets, layers NIIT at 3.8% for MAGI over $200k, and adds your state rate.
This tool is educational. It uses 2025 single-filer federal brackets, a simplified state-tax model, and does not substitute for a CPA review of your specific facts. For a second set of eyes on a meaningful event, match with a fiduciary advisor who routinely works with equity compensation.
Find a fiduciary advisor who understands equity compensation
Short form. We match you with up to three fee-only advisors who routinely work with RSUs, ISOs, and pre-IPO equity.
Plan your next vesting event with confidence
Free PDF checklist. Quarterly tax-planning cadence for RSU holders, AMT tripwires for ISO exercises, and the 10b5-1 calendar our reviewers send clients.