Some benefits packets include a chance to own part of the company you work for, through an Employee Stock Purchase Plan, restricted stock or options. These can be valuable, but they're wrapped in jargon and tax wrinkles that make people either over-invest or ignore them entirely. Here is how each one works, what the discount is worth, and the risk that comes with owning the company that signs your paycheck.
ESPP: the discount and the lookback
An Employee Stock Purchase Plan lets you buy company shares through payroll deductions, usually at a discount. Over an "offering period," often six months, a set percentage of each paycheck is held back; at the end, that money buys shares at a reduced price.
Two features do the heavy lifting:
- The discount, up to 15% off the share price under the IRS rules for a qualified plan. You buy at $85 what the market prices at $100.
- The lookback, which prices your purchase off the lower of the price at the start of the period or the end. If the stock rose, you still buy at the older, cheaper price, then get the discount on top.
| Feature | What it does | Typical figure |
|---|---|---|
| Discount | Buys shares below market price | Up to 15% |
| Lookback | Prices off the lower of start or end | 6-month window |
| Purchase ceiling | Limits how much stock you can buy | $25,000 of stock (at market value) per year under a qualified plan |
That combination makes a well-designed ESPP attractive on the purchase itself, before any opinion about whether the stock goes up later.
Vesting, RSUs and options
Beyond an ESPP, companies grant equity that you earn over time. The key word is vesting: you don't own a grant all at once; you earn it on a schedule, commonly over four years.
- RSUs (restricted stock units) are a promise of actual shares as they vest. When they vest, they're worth the share price; there's nothing to buy. They're treated as income at vesting.
- Stock options give you the right to buy shares later at a set "strike" price. They're valuable only if the share price climbs above the strike; otherwise they can expire worthless.
The broader idea of owning a stake, your equity in the company, is the same thread whether it arrives as an ESPP purchase, RSUs or options. What differs is when you own it and how it's taxed.
| Form | What you get | When you own it |
|---|---|---|
| ESPP | Discounted shares you buy | At each purchase date |
| RSUs | Granted shares, no purchase | As each tranche vests |
| Options | The right to buy at a strike price | After vesting, if you exercise |
Concentration risk: the part people miss
Here's the trap. When your paycheck and a chunk of your investments both come from one company, a bad year for that company hits your income and your savings at the same time. That is concentration risk: too many eggs in one basket, where the basket is also your employer.
History has hard examples of employees who held most of their savings in their own company's stock and lost both job and nest egg when the company failed. The point isn't "never hold employer stock." It's that a single stock, especially the one that signs your paycheck, carries a risk a diversified mix doesn't. A common approach is to set a personal ceiling on how much of one company you'll hold, then sell down to it as shares vest or ESPP purchases land.
Tax timing, in plain English
Equity is taxed at more than one moment, and the details get individual fast; this is where the plan documents and IRS Publication 525 matter more than any article.
- ESPP: the discount is taxed as ordinary income, and any gain or loss after purchase is taxed when you sell. How much of the total counts as income versus capital gain depends on whether you held the shares long enough for a "qualifying" sale, measured from both the offering date and the purchase date.
- RSUs: the value at vesting is taxed as income, usually with shares automatically withheld to cover it, the same withholding idea as a paycheck; later gains are taxed when sold.
- Options: taxation depends on the option type and when you exercise and sell.