A guide for people with equity pay

How RSUs, stock options and ESPP shares are taxed in Virginia

Equity pay is taxed at more than one moment, and the withholding your employer takes is often not the tax you owe. Here is how each kind works, what to watch in the year you vest or sell, and what changes if you moved to Virginia.

If part of your pay from work comes as stock, you've probably been surprised by the tax on it at least once. Vesting is the day shares become yours to keep, and for RSUs (restricted stock units) their value goes on your W-2 as wages that day whether you sell them or not. Withholding is what your employer holds back for tax, often at a flat rate on stock, and whether that covers your bill depends on your own tax rate. Cost basis is the figure your gain is measured against at sale, and wages already reported on a W-2 belong in it.

Key points

  • RSUs become wages on the day they vest. The value goes in box 1 of your W-2 whether or not you sold a share.
  • Employers generally may withhold a flat 22% on stock compensation up to $1 million a year, and most do. For many people that is less than the tax due.
  • Exercising an incentive stock option can create alternative minimum tax in a year when no regular tax is due on it.
  • Taxable income already reported on your W-2 becomes your cost basis when you sell. A broker statement does not always show it.
  • Moving into or out of Virginia changes how much of an award belongs on the Virginia return. The move date, where you worked, and the type of equity all matter.

Restricted stock units are taxed when they vest

Equity pay is taxed in two stages: first as wages when you receive value from your employer, and later as capital gain or loss when you sell the shares. An RSU is the plainest case.

An RSU is a promise of shares. Nothing is taxed when the grant is made. Most RSUs are taxed when they vest and the shares are delivered. The taxable amount is the value of the shares at that time, and it is reported as wages in box 1 of your W-2. If your company sells shares to cover withholding, that only covers the tax withheld by payroll. It may not cover your full federal and state tax.

The reason it can fall short is the rate. The IRS treats stock compensation as supplemental wages. Employers generally may use the optional flat rate of 22% on supplemental wages up to $1 million in the year, and most do, though they can instead withhold under the aggregate method with your regular wages. Amounts over $1 million are subject to mandatory withholding at 37%. If your income already puts you in a higher bracket than 22%, the flat-rate withholding is short and the difference is due when you file. Two or three vesting dates in a year can leave a balance large enough to carry an underpayment penalty. We look at the vesting schedule in the fall and recommend a change to estimated payments or your W-4, the withholding form on file with your employer, ahead of a vest.

Stock options come in two kinds, with two sets of rules

The IRS draws a line between statutory options and nonstatutory options. Incentive stock options (ISOs) and options under a qualifying employee stock purchase plan (ESPP) are statutory. Everything else is a nonstatutory option, usually called an NSO or NQSO.

With a nonstatutory option you owe nothing at grant. When you exercise, the difference between what the shares are worth that day and what you paid, called the spread, is ordinary income, taxed and withheld like wages. When you later sell, the change in value since the exercise date is a capital gain or loss.

With a statutory option there is generally no regular income at grant or at exercise. The tax comes when you sell the shares. If you hold them long enough to meet the special holding period rules, the gain is capital gain, with a limited exception for ESPP shares described below. If you sell early, part of the gain is ordinary income, treated as wages and added to your basis. Your employer sends Form 3921 for ISO exercises and Form 3922 for the first transfer of ESPP shares, and both carry the dates and values the return needs.

Incentive stock options and the alternative minimum tax

This is where people get surprised. An ISO exercise creates no regular income, but for the alternative minimum tax (AMT), a second calculation of your tax that applies when it comes out higher than the regular one, the spread counts. The AMT form, Form 6251, adds the excess of the shares' fair market value over the price you paid, as of the date your rights in the stock are no longer restricted. Exercise enough options in one year and the AMT can exceed your regular tax, so you pay the difference in a year when you have not sold anything.

Two things soften it. If you sell the shares in the same year you exercise, the regular tax and the AMT treat it the same way and there is no adjustment. AMT paid because of an ISO exercise can also come back as a credit in later years, claimed on Form 8801. The planning question is how many options to exercise in a given year, and it is answered before the exercise rather than in April.

ESPP shares

An employee stock purchase plan lets you buy company shares at a discount through payroll. The favorable rules here apply only to a qualifying ESPP, one that meets the requirements of section 423 of the tax code, and not to every employee stock purchase arrangement. Under a qualifying plan the purchase itself is not taxed. What happens at sale depends on how long you held the shares. Meet the holding period and the ordinary income is the lesser of the grant-date discount or the gain at sale over the purchase price, and the rest is capital gain. Sell early and the discount at purchase is ordinary income in full, with the rest capital gain or loss. Form 3922 records the purchase, and the same basis problem described next applies here more than anywhere.

Selling: the basis mistake that taxes the same dollars twice

Whatever amount was included in your wages at vesting or exercise is part of your cost basis in those shares. When you sell, the gain is the sale price minus that basis. The broker's Form 1099-B often reports a basis that leaves out the wage portion, because the broker does not see your W-2. A return prepared from the 1099-B as printed reports the vesting income twice, once as wages and again as gain.

The fix is a basis adjustment on Form 8949, the form where stock sales are reported, with the wage amount added back, supported by the supplemental statement most brokers publish. We check every equity sale against the W-2 and the 3921 or 3922 before the return goes out.

If you moved into or out of Virginia

If you moved into or out of Virginia, the answer depends on your move date, where you worked during the earning period, and the type of equity involved. Virginia taxes residents on their income during the Virginia-resident period, and it taxes nonresidents on Virginia-source income, which includes wages for services performed in Virginia. Virginia also has reciprocity with Maryland, the District of Columbia, West Virginia, Kentucky and Pennsylvania, an agreement under which wages are taxed by the state you live in rather than the one you work in, which matters if you live in one and work in another. Someone who moves in or out during the year files a part-year return, Form 760PY, and prorates the exemptions and standard deduction. RSUs, NSOs, ISOs and ESPP shares can be sourced differently, so we review the vesting, exercise and sale dates before deciding how much belongs on the Virginia return.

The four kinds of equity pay side by side
At grantAt vesting or exerciseAt saleForms
RSUNothingWages at fair market value, usually with 22% flat withholdingCapital gain or loss on the change since vestingW-2, 1099-B
Nonstatutory option (NSO)NothingSpread is wagesCapital gain or loss on the change since exerciseW-2, 1099-B
Incentive stock option (ISO)NothingNo regular tax, but the spread counts for AMTCapital gain if the holding period is met, otherwise part ordinary income3921, 6251, 8949, 8801
ESPP shares (qualifying plan)NothingNothing at purchaseSome or all of the discount is ordinary income, the rest capital gain or loss3922, 8949

A worked example: one vesting date

500 RSUs vest on a day the shares are worth $200. That is $100,000 of wages, reported on the W-2 for the year.

The employer withholds at the optional flat rate of 22%, which is $22,000, usually by selling shares to cover it.

If your marginal federal rate on that income is higher than 22%, the withholding is short by the difference between your rate and 22% on $100,000, plus Virginia's tax on the same amount. That shortfall is what shows up as a balance due in April unless an estimated payment covers it during the year.

When the remaining shares are sold, the basis is $200 a share. If the broker's 1099-B shows a basis of $0, the return needs an adjustment or the $100,000 is taxed again as gain.

What LAS CPA does with this

Personal advisory at LAS CPA starts with your grant agreements and vesting schedule, not with last year's return. Before a vest or an exercise we model the withholding shortfall and the AMT exposure, model how many options to exercise, and set estimated payments. At filing we reconcile every equity sale against the W-2 and the broker's supplemental statement. The return is the last step of that work, prepared by the same team, for a fixed fee agreed before we begin. Personal advisory describes the rest.

Questions people ask about this
My employer withheld tax on my RSUs. Why do I still owe in April?

Employers generally may withhold at the optional flat rate of 22% on stock compensation up to $1 million a year, and most do. If your marginal rate is higher, the difference on every vest is due at filing. LAS CPA sets estimated payments during the year for clients with vesting schedules.

Should I exercise my ISOs this year?

It depends on the spread, your other income, and whether you plan to sell the shares in the same year. Exercising creates no regular tax, but the spread counts for the alternative minimum tax, and a large exercise can produce AMT in a year when nothing was sold. LAS CPA models the exercise in advance.

The 1099-B from my broker shows a cost basis of zero for my RSU shares. Is that right?

Usually not. The value included in your wages at vesting is your basis. Reporting the sale from the 1099-B as printed taxes that income twice. The return needs a basis adjustment on Form 8949, and LAS CPA checks every equity sale against the W-2 before filing.

I moved to Virginia partway through the year with unvested RSUs. Which state taxes them?

You file a Virginia part-year return for the year of the move. How much of the award belongs on it depends on the move date, where you worked during the earning period, and the type of equity, because RSUs, options and ESPP shares can be sourced differently. LAS CPA handles the part-year and multi-state returns for individual clients, so bring the move date, the grant agreements and the vesting schedule to the introduction call.

Vesting this year?

Schedule an introduction call. We will learn about your situation and you decide if we are the right fit.

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