Confluent Post-Termination ISO Calculator
Calculator · free · no signup · pre-IPOLeft Confluent with vested ISOs? Most plans give you 90 days to exercise or forfeit. See your deadline, the AMT cost of exercising, and the share count that maximizes after-tax value.
Beta · invite-only · AlphaLatitude Inc. · Free Tools
Your grant
Tax inputs
Grant timeline
Recommended exercise quantity
Exercise all 10,000
With 10%/yr expected growth over the 3-yr hold, every share's expected after-tax gain exceeds its marginal AMT cost. Net value: $171,946 at horizon.
Net after-tax value vs. shares exercised
Each point is the expected after-tax NPV at your hold horizon if you exercise that many shares now and let the rest expire.
Year-by-year tax breakdown
You pay the higher of Regular tax and Tentative AMT per jurisdiction, then subtract Credit recovered. The result is Net tax. Hover any number for the bracket-by-bracket breakdown.
| 1 | 10,000 | |||
| 2 | 0 | |||
| 3 | 0 |
Federal AMT credit
Earned
$134,654
Recovered
$29,764
Remaining
$104,890
The AMT credit only recovers in years where regular tax exceeds AMT — typically a year with no ISO exercise. It carries forward indefinitely (Form 8801) and applies in any future tax year where regular tax exceeds AMT.
Estimates only. Excludes disqualifying dispositions, NSOs, multi-state moves, and AMT preferences other than ISO bargain elements. Long-term capital gains tax assumes a qualifying disposition (ISO held ≥1 yr from exercise and ≥2 yr from grant); state LTCG follows ordinary brackets except where the state grants preferential treatment (HI, ND, SC, WI, AR, NM) or has a dedicated LTCG-only tax (WA). Assumes you are within the $100K ISO limit (any portion of an annual ISO grant whose FMV at grant exceeds $100K is treated as NSO from the start, §422(d)). State AMT figures are 2025 (next-year values published in late 2026). Not financial advice.
QSBS note. If your shares qualify (typically pre-IPO C-corp grants held 5+ years), a federal rule lets you exclude up to $10M of gain on a future sale from federal tax. That single rule shifts exercise-timing math more than AMT does. (This is §1202 “qualified small-business stock”.) Modeled in beta, not here.
You solved the exercise window. The beta plans what comes after it: the new shares, your remaining equity, hedges, and taxes in one multi-year plan.
Request beta access →About Confluent
Confluent is a public Data company, incorporated in Delaware and headquartered in Mountain View, CA. IPO'd Jun 24, 2021.
Acquired by IBM Mar 2026 ($31/share, ~$11B all-cash); CFLT delisted from Nasdaq 2026-03-16.
Equity grants at Confluent typically include incentive stock options (ISOs), non-qualified stock options (NSOs), and restricted stock units (RSUs).
Confluent, Inc. is an American technology company headquartered in Mountain View, California. Confluent was founded by Jay Kreps, Jun Rao and Neha Narkhede on September 23, 2014, in order to commercialize an open-source streaming platform Apache Kafka, created by the same founders while working at LinkedIn in 2008 as a B2B infrastructure company. Confluent's products are the Confluent Cloud, Confluent Platform, Connectors, Apache Flink, Stream Governance and Confluent Hub.
Source: Wikipedia (CC BY-SA 4.0)
Jay Kreps, Neha Narkhede, and Jun Rao founded Confluent in September 2014 to commercialize Apache Kafka, the open-source distributed event-streaming system they built at LinkedIn. The company sold a managed data-streaming platform covering real-time pipelines, stream processing, and connectors across cloud environments, debuting on Nasdaq under CFLT on June 24, 2021 at $36 per share. IBM announced acquisition of Confluent on December 8, 2025 and completed the all-cash deal at $31 per share on March 17, 2026, valuing the company at roughly $11 billion. CFLT was delisted from Nasdaq on March 16, 2026.
Sources: newsroom.ibm.com · cnbc.com · en.wikipedia.org
Equity comp at Confluent
- RSUs use single-trigger vesting: shares become yours as each portion vests on schedule, and the value is taxed as ordinary income at that point. No IPO or acquisition is required.
Researched 2026-05-07.
OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by Confluent.
If you have left Confluent with vested incentive stock options (ISOs), most stock plans give you 90 days from your departure date to exercise or forfeit them. Exercising everything at once concentrates the AMT bargain element into a single tax year. This calculator computes your window deadline from your departure date, the alternative minimum tax (AMT) cost of a full exercise at the current trading price, and the partial-exercise share count that maximizes expected after-tax value.
All Confluent tools → · Use the generic Post-Termination ISO Exercise Calculator for any company.
Confluent equity questions
- I left Confluent. How long do I have to exercise my ISOs?
- Most stock plans give you 90 days from your departure date to exercise vested incentive stock options (ISOs); unexercised options are forfeited when the window closes. Tax law is slightly wider: ISO treatment requires you to have been an employee within 3 months of exercise (Internal Revenue Code Section 422(a)(2)), so options exercised under an employer-extended window are taxed as non-qualified stock options (NSOs). Check your grant agreement for Confluent's exact terms. The calculator above computes your deadline from your departure date, the alternative minimum tax (AMT) cost of exercising, and the share count that maximizes after-tax value.
- Does Confluent grant ISOs, NSOs, or RSUs?
- Equity compensation at Confluent typically takes the form of incentive stock options (ISOs), non-qualified stock options (NSOs), and restricted stock units (RSUs). Incentive stock options can trigger the alternative minimum tax (AMT) when you exercise. Restricted stock units are taxed as ordinary income when they vest.
- Do Confluent RSUs use double-trigger vesting?
- No. Confluent restricted stock units (RSUs) use single-trigger vesting: each tranche becomes yours as it vests on schedule, taxed as ordinary income at that point, with no liquidity event required.
One piece of the puzzle.
OptionsAhoy plans your Confluent equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.