How to Sell Employer Stock Without Getting Killed by Taxes

Understand holding periods, tax lots, and strategies to minimize tax when you sell company stock.

  1. Know the difference between short-term and long-term capital gains. When you sell stock for more than you paid, the profit is a capital gain. If you've held the shares for one year or less, it's taxed as ordinary income — at your regular tax rate, which can be 22% to 37% depending on your salary. If you've held it for more than a year, it qualifies as a long-term capital gain, taxed at a lower rate (0%, 15%, or 20% for most people). The one-year clock matters. Holding three months longer can cut your tax bill in half.
  2. Understand tax lots and choose your sell method deliberately. A tax lot is a batch of shares bought at the same time and price. If you bought 100 shares at $50 last year and 100 shares at $80 this year, you have two tax lots. When you sell, you can choose which lot to sell — and which you choose determines your tax. Most brokerages default to FIFO (first in, first out), selling your oldest shares first. But if those oldest shares have the biggest gain, that's the worst outcome for taxes. Ask your broker if you can use 'specific ID' or 'specific lot' to hand-pick which shares to sell.
  3. Consider selling highest-cost shares first if you're selling soon. If you must sell before the one-year mark, prioritize selling shares with the smallest gain — ideally the ones you bought most recently or at the highest price. This minimizes your short-term capital gain. Example: you bought 50 shares at $100 and 50 shares at $70, and the stock is now $150. Selling the shares you bought at $100 gives a $50-per-share gain ($2,500 total). Selling the ones you bought at $70 gives a $80-per-share gain ($4,000 total). The first choice saves you $500 in taxable gain.
  4. If you can wait one year, do. The tax rate difference between short-term and long-term is often 15-25 percentage points. On a $10,000 gain, that's $1,500 to $2,500 in extra taxes. If your stock price is stable or expected to hold, waiting 12 months from purchase to clear the long-term threshold is usually the single biggest tax win available to you. Mark the date on a calendar. Set a phone reminder. One year is a concrete number.
  5. Use losses elsewhere in your portfolio to offset the gain. If you're selling a winner, look at the rest of your investments. If you have unrealized losses (stocks worth less than you paid), you can sell those too to create a capital loss. That loss offsets your gain dollar-for-dollar, reducing your taxable income. This is called tax-loss harvesting. You can use up to $3,000 of net losses in a single year to offset ordinary income; anything beyond that carries forward to next year. This only works if you have other losing positions — but if you do, it's free money.
  6. Plan the year you sell to control your total tax bracket. Capital gains are stacked on top of your other income for the year. If you sell a large employer stock position in the same year you receive a bonus or finish a high-income project, your total income might push you into a higher capital gains bracket. If possible, sell in a lower-income year — or in a year when you expect other losses or deductions. This isn't micro-timing the market; it's macro-timing your tax bracket. Consult a tax professional if the gain is substantial.