L3Harris (LHX) RSU sell-vs-hold
Calculator · free · no signup · LHXSell at vest or hold? Compare after-tax payout from selling L3Harris RSUs at vest vs. holding through the LTCG cliff at 12 months.
Beta · invite-only · AlphaLatitude Inc. · Free Tools
Your vest
Tax inputs
Hold strategy
Best after-tax payout — at year 1 yr
$47,709
Sell + invest wins by $4,981 over Hold 1 yr.
Estimates only. Not financial advice.
Heads-up: under-withholding. Your employer withholds federal tax at the IRS supplemental rate (22.0% on this vest, ≈ $17,600). Your marginal federal rate on this vest is 32.7%, owing $26,171. Expect to settle the $8,571 gap at tax time.
The hidden purchase
Tax was paid at vest either way. Holding is mathematically equivalent to taking $44,509 in after-tax cash and buying $44,509 of LHX today.
Most diversification frameworks would advise against a purchase that size in a single name; the right answer depends on your conviction in LHX. Holding past one year converts the gain to LTCG.
Sell + invest
Best payout| Vest value (shares × price) | $80,000 |
| Federal | |
| State | |
| Medicare | −$1,160 |
| Additional Medicare | −$720 |
| Market gain over 1 yr at 10.0% | $4,451 |
| Cap-gain tax on diversified gain — LTCG (federal + state + NIIT) | −$1,251 |
| Net at year 1 yr | $47,709 |
Sell every share at vest; invest the after-tax cash at the market return for 1 yr, then liquidate. Diversified — no single-stock concentration risk.
Hold 1 yr
| Vest value (shares × price) | $80,000 |
| Vest tax (federal + state + FICA) | |
| Net at year 1 yr | $42,728 |
Sold 444 shares to cover vest tax (net-settled); kept 556 shares 1 yr to qualify for long-term capital gains.
Social Security + Medicare are payroll taxes (collectively called FICA) — they apply because you're still employed at vest.
Both columns are stated in year-1 yr dollars. The sell side compounds at the market return; the hold side compounds at your single-stock expected return after a 20% volatility drag.
Estimates only. Assumes net-settled (sell-to-cover) vesting; double-trigger and pre-IPO RSUs are out of scope. Excludes multi-state moves, AMT interactions on other equity, and 83(b) elections. Not financial advice.
You evaluated one RSU vest. The beta plans every vest of every grant across years, with concentration and AMT in the loop.
Request beta access →Related calculators: RSU Lot Order Calculator · Stock Concentration Calculator
About L3Harris
L3Harris (LHX) is a public Aerospace/Defense company, incorporated in Delaware and headquartered in Melbourne, FL.
Equity grants at L3Harris typically include restricted stock units (RSUs).
L3Harris Technologies, Inc. is an American technology company, defense contractor, and information technology services provider that produces products for command and control systems, wireless equipment, tactical radios, avionics and electronic systems, night vision equipment, intelligence, surveillance and reconnaissance (C3ISR) systems and products, ocean systems, instrumentation, navigation products, training devices and services, and both terrestrial/spaceborne antennas for use in the government, defense, and commercial sectors.
Source: Wikipedia (CC BY-SA 4.0)
L3 Technologies and Harris Corporation merged in 2019 to create a defense supplier positioned between the large primes and the specialist subcontractors, self-described as a challenger to the traditional five. Tactical radios, night vision, electronic warfare, and space payloads anchor the portfolio, and the 2023 Aerojet Rocketdyne acquisition added rocket propulsion at a moment when munitions restocking became a priority. Harris itself dates to 1895 as a printing press manufacturer. Headquarters are in Melbourne, Florida.
Sources: l3harris.com · en.wikipedia.org
Equity comp at L3Harris
- 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 2026-08-17.
OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by L3Harris.
L3Harris (LHX) RSUs vest as ordinary income at the price on vest day. The decision is whether to sell at vest and reinvest, or hold the shares through the 12-month LTCG cliff. This calculator runs both paths through the same after-tax math so you can compare like-for-like.
All L3Harris tools → · Use the generic RSU Sell-vs-Hold Calculator for any company. Diversifying multiple RSU lots? See the lot-by-lot sell order →
L3Harris equity questions
- Should I sell or hold my L3Harris RSUs at vest?
- L3Harris restricted stock units (RSUs) are taxed as ordinary income on their value at vest whether or not you sell. The only open decision is what to do with the shares afterward: sell at vest and reinvest, or hold past twelve months for long-term capital-gains treatment on any further gain. The calculator above runs both paths through the same after-tax math so you can compare them directly.
- Does L3Harris grant ISOs, NSOs, or RSUs?
- Equity compensation at L3Harris typically takes the form of restricted stock units (RSUs). Restricted stock units are taxed as ordinary income when they vest.
- Do L3Harris RSUs use double-trigger vesting?
- No. L3Harris 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.
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