How is an ESPP taxed?

You contribute through payroll over an offering period. At the end, the plan buys shares for you at a discount, commonly 15%, off the market price.

Many plans add a lookback, buying at a discount to the lower of the price at the start or the end of the period. In a rising market that can be worth far more than the headline discount.

Nothing is taxed when you contribute, and nothing is taxed at purchase in a qualified plan. The tax arrives when you sell.

A sale is qualifying if it happens at least two years after the offering date and at least one year after the purchase date. Both must be satisfied.

Anything sooner is disqualifying. Nothing is disallowed, and it is not a penalty; it simply changes how the proceeds are split between ordinary income and capital gain.

Because the offering date can be six months before the purchase date, the two-year clock is usually the binding one.

The discount measured at purchase is taxed as ordinary income, and it is generally added to your W-2.

Everything above the purchase-date market price is a capital gain, short-term if you sold within a year of purchase, long-term if not.

Selling immediately at purchase is the simplest version: essentially all of the benefit is ordinary income, you capture the discount, and you take no price risk.

The ordinary income portion becomes the lesser of the actual gain, or the discount measured against the price at the offering date.

Everything else is a long-term capital gain, taxed at the preferential rate.

So holding long enough converts part of what would have been ordinary income into capital gain. If the shares fell, the ordinary income component can be smaller than the headline discount, and the whole thing may even be a loss.

Your basis is what you paid, plus any amount already taxed as ordinary income. Brokers frequently report only what you paid, omitting the compensation element.

Filing that unchanged means paying ordinary income tax on the discount through your W-2 and capital gains tax on the same amount again.

Plan statements show the figures needed to correct it. This is the most common ESPP filing error and it always favours the IRS.

A 15% discount with a lookback, sold immediately, is a large return on money that was only committed for a few months, and it carries no market risk if you sell at purchase.

Holding for the qualifying period converts part of the benefit to capital gain treatment, but it also means holding concentrated employer stock through whatever happens to the price. The tax saving can easily be smaller than the price move.

Neither choice is wrong. The point is that holding for tax reasons is a market bet, and it should be made deliberately.

Whether your plan has a lookback, which changes the value of the discount substantially.

Your offering and purchase dates, so you know which clock you are on and when a qualifying sale becomes possible.

The basis your broker will report, and whether it needs adjusting for the compensation element.

Equity compensation is covered in IRS Publication 525. Cost basis and 1099-B reporting are in IRS Publication 550. Walnut is informational and is not an investment adviser. This guide is educational and not personalized tax or investment advice; anything with a tax consequence is worth confirming with a tax professional.