Sell Comcast (CMCSA) stock to fund a goal
Calculator · free · no signup · CMCSANeed cash for a goal? Plan the minimum-tax schedule to sell your vested Comcast (CMCSA) shares and net a target amount by a target date, across tax years.
Beta · invite-only · AlphaLatitude Inc. · Free Tools
Inputs
Your equity
One stack per ticker (current-employer RSUs, prior-employer holdings, index fund, etc.). Each stack has its own current price, growth assumption, and cost-basis lots.
Drives chance-of-shortfall · default 30%
Lots
Plan
Estimates only. Not financial advice.
Lock-in-now is deterministic (0%). Plans that wait depend on future prices; risk is near-zero when inventory comfortably exceeds the goal. Volatility: each stack's option-implied vol if a ticker is set, otherwise 30%. Lognormal model; real markets have fatter tails.
| Tax | $109,597 | $111,639 | $111,883 | $118,769 |
| Wealth @ target | $719,068 | $716,894 | $714,464 | $712,031 |
| Chance of shortfall | <0.1% | 0% | 1.9% | 3.4% |
Feasible
$400,071 net by 08/01/27
Total tax: $109,597 (federal $58,819, state $36,048, NIIT $14,729)
Schedule · Recommended
| Sale date | Shares | Tax | Net | Cumulative |
|---|---|---|---|---|
| 08/17/26 | 4,085 | $351,104 | $360,043 | |
| 03/31/27 | 4 | $360 | $360,406 | |
| 04/30/27 | 32 | $2,896 | $363,321 | |
| 05/31/27 | 100 | $9,103 | $372,466 | |
| 06/30/27 | 100 | $9,157 | $381,644 | |
| 07/31/27 | 100 | $9,212 | $390,857 | |
| 08/01/27 | 100 | $9,215 | $400,071 |
Risk vs wealth
Each dot is a possible plan. Right is riskier, up is more wealth left over.
Trajectory of cash netted
Solid line = expected. Shaded band = 10th–90th percentile under price uncertainty.
After the plan
You keep 3,479 shares worth $411,873 at the projected target-date price, invested for the next decision.
You solved for a cash target. The beta optimizes your full portfolio across multiple goals and market scenarios, not just one funding need.
Request beta access →Related calculators: RSU Lot Order Calculator · Stock Concentration Calculator · RSU Sell-vs-Hold Calculator
About Comcast
Comcast (CMCSA) is a public Consumer Internet company, incorporated in Pennsylvania and headquartered in Philadelphia, PA.
Equity grants at Comcast typically include restricted stock units (RSUs).
Comcast Corporation, formerly known as Comcast Holdings, is an American multinational mass media, telecommunications, and entertainment conglomerate. Comcast's corporate headquarters is at the Comcast Center in Philadelphia, while NBCUniversal, Comcast's New York operations and other major Comcast assets are headquartered at 30 Rockefeller Plaza in Midtown Manhattan in New York City. The company was ranked 51st in the Forbes Global 2000 in 2023. It is the fourth-largest telecommunications company by worldwide revenue, after AT&T, Verizon, and China Mobile. Comcast is the third-largest pay-TV company, the second-largest cable TV company by subscribers, and the largest home Internet service provider in the United States.
Source: Wikipedia (CC BY-SA 4.0)
Ralph Roberts bought a small Mississippi cable system in 1963 and built the largest cable operator in the United States, with the Roberts family retaining voting control. NBCUniversal came in stages from 2011, adding broadcast, film, and theme parks, and Sky added European pay television in 2018. Broadband subscriptions now matter more than video as cord-cutting shrinks the cable bundle, and wireless resold over Verizon's network is the growth add-on. Peacock carries the streaming strategy. Headquarters are in Philadelphia.
Sources: corporate.comcast.com · en.wikipedia.org
Equity comp at Comcast
- 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 Comcast.
If you hold vested Comcast (CMCSA) shares and need a set amount of cash by a date (a house down payment, tuition, a sabbatical, a business buy-in), the question is which lots to sell and in which tax years to keep the most after tax. This calculator builds the minimum-tax sell schedule across your lots, accounting for federal long-term capital gains, the net investment income tax, and your state.
All Comcast tools → · Use the generic Stock Sale Funding Calculator for any company.
Comcast equity questions
- How much CMCSA stock do I sell to fund a goal without overpaying tax?
- It depends on your cost basis, your target amount and date, and how the sale spreads across tax years. Selling vested CMCSA shares triggers long-term capital-gains tax, plus the 3.8% net investment income tax and state tax above certain income, and bunching a large sale into one year can push the gain into a higher bracket. The calculator above builds the minimum-tax sell schedule across your lots to net your target amount by your date.
- Does Comcast grant ISOs, NSOs, or RSUs?
- Equity compensation at Comcast typically takes the form of restricted stock units (RSUs). Restricted stock units are taxed as ordinary income when they vest.
- Do Comcast RSUs use double-trigger vesting?
- No. Comcast 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.
Find another companyConsumer Internet peers
One piece of the puzzle.
OptionsAhoy plans your Comcast equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.