Employee Stock Purchase Plans: What to Know if You Participate

A 15% discount on anything gets your attention. When that discount applies to your own company’s stock and comes straight out of your paycheck, signing up can feel like an easy yes.

Often it is a good deal. An employee stock purchase plan (ESPP) can be one of the better perks a company offers. But how much you gain depends on how the plan is built, how long you hold the shares, and how much of your savings already rides on one company. This guide covers how ESPPs work, how they’re taxed, and how to decide what to do with your shares.

How an ESPP(Employee Stock Purchase Plan) Works

An ESPP lets you buy your employer’s stock through payroll deductions, usually at a discount of up to 15%. Most plans follow the same cycle.

Enrollment and the offering period

You sign up during an enrollment window, often twice a year, and choose how much of each paycheck to set aside. Many plans cap this at 10% or 15% of pay. The offering period, commonly 6 to 24 months, begins on the offering date.

Purchase dates

Your deductions build up in the plan until a purchase date, when the plan uses the money to buy shares for you. Longer offering periods often have several purchase dates, every six months for example. Any cash left over after buying whole shares usually rolls forward or comes back to you.

The $25,000 limit

Qualified plans cap purchases at $25,000 worth of stock per calendar year. That limit uses the share price on the offering date, before the discount, so the most you’ll actually pay is closer to $21,250.

The Lookback Feature

Many plans add a lookback, which applies your discount to the lower of two prices, the stock price on the offering date or on the purchase date. When the stock rises during the offering period, the lookback can turn a 15% discount into a much bigger one.

Say the stock trades at $15 on the offering date and climbs to $20 by the purchase date. With a 15% discount and a lookback, you pay $12.75 a share (85% of $15) for stock worth $20. That’s an instant gain of more than 50% on the shares you bought.

Some plans also include a reset. If the stock falls below the offering-date price, you move into a new offering period at the lower price, which protects the value of the lookback.

Qualified vs. Non-Qualified Plans

Most ESPPs are qualified under Section 423 of the tax code. Qualified plans cap the discount at 15% and must be open to most employees on equal terms. In return, you owe no tax when you buy shares, and the discount isn’t subject to Social Security or Medicare tax.

Non-qualified plans can offer bigger discounts or matching shares but lose those tax advantages. The discount counts as wages and is taxed in the year you buy, much like a bonus.

How Qualified ESPP Shares Are Taxed

You owe tax when you sell, and the amount depends on how long you held the shares. A qualifying disposition means you sold at least two years after the offering date and one year after the purchase date. Selling sooner is a disqualifying disposition.

Using the lookback example above, here’s how a sale at $25 a share would play out.

	Disqualifying (sold early)	Qualifying (held long enough)
Ordinary income	$7.25 per share (the $20 market price at purchase minus the $12.75 you paid)	$2.25 per share (15% of the $15 offering-date price)
Capital gain	$5.00 per share, short- or long-term depending on how long you held after purchase	$10.00 per share, long-term
Total gain	$12.25 per share	$12.25 per share

The total gain is the same either way. Holding longer moves $5 of that gain from ordinary income to long-term capital gains, which are taxed at a lower rate. For someone in the 32% bracket who qualifies for the 15% capital gains rate, that saves about 85 cents a share.

That saving comes with a cost, though. You carry the stock’s risk for up to two years to get it. A drop of just a few percent can erase the benefit, which is why many people sell as soon as they buy.

Watch for double taxation on your 1099-B

Your broker’s Form 1099-B often reports your cost basis as only the price you paid, leaving out the discount that was already taxed on your W-2. If you file using that number, you’ll pay tax on the discount twice. Use your plan’s supplemental tax statement to correct the basis on Form 8949, or make sure your tax preparer does.

Should You Participate, and How Much?

A plan with a 15% discount gives you about a 17.6% return on the money you put in the moment shares are bought, since you pay $85 for stock worth $100. With a lookback, it can be much more. Few other savings options offer that, which is why many advisors encourage taking part when you can afford it.

A few questions help set your contribution level.

• Can your budget handle the smaller paychecks? Your deductions are tied up until each purchase date.

• Is your emergency fund in place? Don’t pull from savings you might need to fund ESPP purchases.

• Are you still getting your full 401(k) match? The match is usually a better deal, so fund it first.

• How much company stock do you already own? RSUs, options, and ESPP shares all add up.

Selling Strategies

Most people choose one of two approaches. Selling right after each purchase locks in the discount, keeps your concentration in check, and costs a bit more in tax. Holding for a qualifying disposition lowers the tax but leaves you exposed to the stock for longer.

Many of my clients use a middle path. They sell enough at each purchase to keep company stock under a set share of their net worth and hold the rest for the tax benefit. Our framework for deciding when to sell company stock walks through how to set that limit.

Don’t Overlook Concentration Risk

Your paycheck, your benefits, and your career already depend on your employer. When a large part of your savings does too, one bad stretch for the company can hit you twice. Employees at Enron and Lehman Brothers learned this the hard way, losing jobs and savings at the same time.

An ESPP makes building a large position easy, since purchases happen automatically every few months. Checking your total company stock once or twice a year keeps a good benefit from becoming an outsized risk.

Common Questions About Your ESPP

Is the $25,000 limit how much I can contribute?

Not exactly. The limit is on the value of stock you buy each year, measured at the offering-date price before the discount. Your plan may also cap contributions as a percentage of your pay.

Should I sell my ESPP shares right away?

Selling at purchase locks in your discount and limits risk. Holding can lower your tax, but the savings are often small compared with how much the stock could move. The right choice depends on how much company stock you already own.

Why does my 1099-B show a bigger gain than I expected?

Brokers often leave the taxed discount out of your cost basis. Adjust it using your plan’s supplemental statement so you don’t pay tax on the same income twice.

What happens to my ESPP if I leave my job?

Most plans refund any contributions that haven’t been used to buy shares yet. Shares you’ve already bought are yours to keep or sell, and the holding period rules still apply.

Do I owe Social Security and Medicare tax on my ESPP discount?

Not with a qualified plan. The discount is taxed as ordinary income when you sell, but it isn’t subject to payroll taxes. Non-qualified plans are different, and the discount is taxed as wages when you buy.

Make the Most of Your Plan

An ESPP works best when it fits the rest of your plan, including your cash flow, your taxes, and how much of your wealth already rides on your employer.

At Life Story Financial, I help women decide how much to put into their ESPP, when to sell, and how to fit company stock into a balanced portfolio. If you’d like help with yours, book a free intro call any time.