Rocket Lab (RKLB) AMT + ISO Calculator
Calculator · free · no signup · RKLBPlan your Rocket Lab ISO exercise around the AMT bargain element from current trading price.
Beta · invite-only · AlphaLatitude Inc. · Free Tools
Your grant
Tax inputs
Grant timeline
Net final value at year 3 sale — optimized plan
$242,783
After-tax dollars at end of year 3, net of all federal + state taxes through the sale.
This year: exercise 2,640 shares (of 10,000 total).
= gross gain at sale − federal + state LTCG − AMT premium above baseline regular tax (time-valued)
AMT premium for exercising: $90,254 (on top of $228,434 regular tax across the horizon)
Optimized plan keeps $57,102 more than lump-sum, $796 more than even split.
Federal AMT crossover this year: 1,271 shares ($57,238 bargain element). Above that, each additional share this year adds federal AMT.
Estimates only. Not financial advice.
Net final value by year
Running tally: NTV from shares exercised through year y, minus AMT premium paid through year y. The last year matches the plan's headline NTV. Hover a year for plan totals.
Optimized exercise schedule
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 | 2,640 | |||
| 2 | 2,567 | |||
| 3 | 4,793 |
Federal AMT credit
Earned
$80,681
Recovered
$0
Remaining
$80,681
The AMT credit only recovers in years where regular tax exceeds AMT — typically a year with no ISO exercise. Every year in this schedule has bargain element, so AMT exceeds regular tax in every year and the credit carries forward untouched. Try a longer horizon or fewer total shares to introduce a recovery year.
Plan comparison
Net value at the end of your hold horizon.
Lump-sum
All in Year 1
$185,681
−$57,102
Even split
Equal shares each year
$241,987
−$796
Optimized
Tax-aware schedule
$242,783
Highest
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 optimized one grant in isolation. The beta optimizes ISOs alongside your RSUs, NSOs, and stock in one plan.
Request beta access →About Rocket Lab
Rocket Lab (RKLB) is a public Aerospace/Defense company, headquartered in Long Beach, CA. IPO'd Aug 25, 2021.
Last close: $104.63 per share (as of 2026-06-17).
Equity grants at Rocket Lab typically include incentive stock options (ISOs), non-qualified stock options (NSOs), and restricted stock units (RSUs).
Rocket Lab Corporation is a publicly traded aerospace manufacturer and launch service provider. Its Electron orbital rocket launches small satellites and has successfully completed over 75 missions as of January 2026, making it the most prolific small-lift launch vehicle in operation globally. A suborbital variant of Electron, called HASTE, was developed as a testbed to advance hypersonic technology development, while the next-generation reusable Neutron medium-lift launch vehicle is in development to support constellation deployment, interplanetary missions, and human spaceflight. The company is a supplier of satellite components such as star trackers, reaction wheels, solar panels, electric propulsion systems, software-defined radios, composite structures, separation systems, and electro-optical and infrared (EO/IR) sensors, as well as flight and ground software. The company also manufactures satellite buses and complete spacecraft as part of its strategic vision to become a vertically integrated, end-to-end space company.
Source: Wikipedia (CC BY-SA 4.0)
Electron, the small-lift orbital rocket that put Rocket Lab on the map, has flown 87 missions as of May 2026 from launch sites at Mahia Peninsula (New Zealand) and Wallops Island (Virginia). Founder Peter Beck started the company in New Zealand in 2006 and later relocated headquarters to Long Beach, California. Rocket Lab went public on Nasdaq under ticker RKLB in August 2021 via a SPAC merger with Vector Acquisition Corp. The company also operates the Photon spacecraft platform and is preparing Neutron, a medium-lift reusable rocket, for a late-2026 debut from Wallops.
Sources: en.wikipedia.org · nasaspaceflight.com
Equity comp at Rocket Lab
- 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 Rocket Lab.
Use this calculator to plan a Rocket Lab (RKLB) ISO exercise around the AMT bargain element from the current trading price. The math accounts for federal AMT, state AMT (CA, CO, CT, MN where applicable), AMT crossover, and year-over-year credit recovery. Inputs are yours: strike price, share count, FMV at exercise, and your filing-status income.
Example: at Rocket Lab (RKLB)'s last close of $104.63, exercising 5,000 ISOs with a $31.39 strike creates a $366,200 bargain element. Above the 2026 federal AMT exemption ($88,100 single, $137,000 married joint), the 28% AMT rate adds roughly $102,536 on top of regular tax before any state AMT (CA, CO, CT, MN). The credit recovers in later years when your regular tax exceeds AMT. The calculator above runs your exact figures.
All Rocket Lab tools → · Use the generic AMT + ISO Exercise Calculator for any company.
Rocket Lab equity questions
- How much alternative minimum tax (AMT) will I owe exercising Rocket Lab ISOs?
- Exercising incentive stock options (ISOs) does not create regular income tax, but the bargain element (the fair market value at exercise minus your strike price) counts toward the alternative minimum tax (AMT). The amount depends on the bargain element, your other income, your filing status, and your state. The calculator above models federal and state AMT, the AMT crossover point, and how the credit recovers in later years for your exact Rocket Lab figures.
- Does Rocket Lab grant ISOs, NSOs, or RSUs?
- Equity compensation at Rocket Lab 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 Rocket Lab RSUs use double-trigger vesting?
- No. Rocket Lab 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 Rocket Lab equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.