Phillips 66 (PSX) RSU sell-vs-hold

Calculator · free · no signup · PSX

Sell at vest or hold? Compare after-tax payout from selling Phillips 66 RSUs at vest vs. holding through the LTCG cliff at 12 months.

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Your vest

pre-IPO? enter price manually

Tax inputs

Hold strategy

1 yr
20%
20%
10.0%

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.

This vest pushes your top federal rate from 24% to 35%. Hover the Federal value below for the bracket-by-bracket slicing.

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 PSX today.

Most diversification frameworks would advise against a purchase that size in a single name; the right answer depends on your conviction in PSX. 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.

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Related calculators: RSU Lot Order Calculator · Stock Concentration Calculator

About Phillips 66

Phillips 66 (PSX) is a public Energy company, incorporated in Delaware and headquartered in Houston, TX.

Last close: $243.49 per share (as of 2026-08-19).

Equity grants at Phillips 66 typically include restricted stock units (RSUs).

The Phillips 66 Company is an American multinational energy company headquartered in Westchase, Houston, Texas. Its name, dating back to 1927 as a trademark of the Phillips Petroleum Company, assisted in establishing the newly reconfigured Phillips 66. The company today was formed ten years after Phillips merged with Conoco to form ConocoPhillips. The merged company spun off its refining, chemical, and retail assets – known in the oil industry as downstream operations – into a new company bearing the Phillips 66 name. It began trading on the New York Stock Exchange on May 1, 2012, under the ticker PSX.

Source: Wikipedia (CC BY-SA 4.0)

ConocoPhillips separated its refining, marketing, and midstream businesses in 2012 to create the company, which refines crude and markets fuel under the Phillips 66, Conoco, and 76 brands. Refining margins are volatile, so the chemicals joint venture with Chevron and the midstream segment are held partly to dampen that swing. Renewable fuel conversion at existing refineries responds to policy incentives. Activist pressure has centered on whether the midstream assets should be separated. Headquarters are in Houston.

Sources: sec.gov · en.wikipedia.org

OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by Phillips 66.

Phillips 66 (PSX) 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.

Example: 500 Phillips 66 (PSX) RSUs vesting at $243.49 per share is $121,745 of ordinary income on vest day. After roughly 32% combined federal + state + FICA (~$38,958), the post-tax share value is ~$82,787. Holding 12 months for long-term capital-gains treatment then only matters for the price change between vest and sale; the ordinary income at vest is already locked in. The calculator runs both paths through the same after-tax math.

All Phillips 66 tools → · Use the generic RSU Sell-vs-Hold Calculator for any company. Diversifying multiple RSU lots? See the lot-by-lot sell order →

Phillips 66 equity questions

Should I sell or hold my Phillips 66 RSUs at vest?
Phillips 66 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 Phillips 66 grant ISOs, NSOs, or RSUs?
Equity compensation at Phillips 66 typically takes the form of restricted stock units (RSUs). Restricted stock units are taxed as ordinary income when they vest.
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