Tax Center: ISO Basics

Stock Option Fundamentals (Part 5): Incentive Stock Option Taxation & Alternative Minimum Tax

Marilyn Renninger
You're ready to delve deeper into how and when different taxes apply to ISOs, including the AMT. You need to consider taxes at exercise and at sale to put together a strategy that maximizes the value of your options.

Final ISO Regulations Affect Stock Plan Design, Optionholders, And Advisors (Part 1)

Ellie Kehmeier and Elizabeth Drigotas
The final rules clarify and consolidate a tangle of proposed, temporary, and final regulations, as well as other guidance, that governed the taxation of ISOs, including rules for disqualifying dispositions.

Final ISO Regulations Affect Stock Plan Design, Optionholders, And Advisors (Part 2)

Ellie Kehmeier and Elizabeth Drigotas
The final rules clarify and consolidate a tangle of proposed, temporary, and final regulations, as well as other guidance, that governed the taxation of ISOs, including rules for the $100,000 ISO limit.

Treasury And IRS Finalize Regulations For Incentive Stock Options

IRS and US Treasury Department
8/04
These update and clarify the existing ISO regulations to follow most of those proposed in June 2003, including interpretations introduced back in 1984. The new regulations are of greater concern to corporations than to individual optionholders and advisors (e.g., no changes to the basic tax structure or AMT treatment for ISOs). For option planning, the rules clarify certain advanced topics, such as the wash sale rule, stock swaps, and transfers to trusts and in divorce, and they confirm current interpretations and practices.

Proposed Regulations For ISOs

IRS
US Treasury Department
The proposed regulations of June 6, 2003, which are very similar to the final rules, contain a more detailed background and discussion of the provisions than the final version does. The similar section in the final regulations (August 2, 2004) focuses on revisions and clarifications of the proposed rules.

Taxable And Nontaxable Income:
IRS Publication 525

Internal Revenue Service
This IRS publication explains the tax treatment of many kinds of income, including that from NQSOs, ISOs, and restricted stock/RSUs.

IRS Instructions For Form 6251: Alternative Minimum Tax

Internal Revenue Service
The line-by-line instructions explain how the AMT is calculated and what the IRS expects on the form, including the adjustment for ISO exercises.

Avoid These Tax Blunders

Sue Stevens
Morningstar.com
Almost nobody likes preparing income tax returns, but you'll like it even less if you make mistakes and pay more tax than you need to. Most of the suggestions remain useful every tax year. (Free registration is required.)

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Do you have a chart that compares the tax treatment of stock options, restricted stock, RSUs, and ESPPs?

The useful chart below gives the types of taxes, and when they are triggered, for various forms of equity compensation granted in the United States...

Has recent legislation changed the taxation of incentive stock options?

While the 2003 tax law did not change the taxation of ISOs, there were a few changes that impact the tax when you sell the stock. Tax law changes in 2006, 2007, 2008, and 2009 raised the AMT income exemption amounts and provided an alternative way to use AMT credits...

What are the tax consequences of exercising an ISO?

The taxation of incentive stock options (ISOs) is complex. The tax impact depends on when you sell or transfer the stock received at exercise. If you make what is called a disqualifying disposition (e.g., an early sale or a gift) of ISO shares, ordinary compensation income and any capital gains/losses will be determined by your...

How am I taxed on my gain from a sale of stock that I acquired in an ISO exercise?

First: Remember that the sale of ISO stock will raise AMT implications (alternative minimum tax). Second: The matter depends on how long you hold the stock...

I hear that when I sell my ISO stock at exercise or within one year I'm taxed as if I had NQSOs. Does this mean that on the spread at exercise (or when I sell the stock) there is withholding and Social Security and Medicare tax?

No. What this means is that you will not have the favorable tax treatment that you get with ISOs when you hold the stock one year from exercise and two years from grant...

What is the alternative minimum tax?

Running parallel to the regular tax system, the alternative minimum tax (AMT) was designed to require extremely wealthy people to pay their fair share of taxes when credits and deductions could otherwise reduce or eliminate their tax liabilities. However, the reach of the AMT has expanded over time to hit middle-income people it was never intended to tax...

Are there any general guidelines for assessing when I may be hit with the alternative minimum tax? For example, my spouse and I together earn $100,000. Do we still need to worry about AMT liability when I exercise ISOs?

Yes. People who live in high-tax states and itemize tax deductions or who have significant personal exemptions can easily owe more in AMT than in regular taxes. See the figures in the table below, which estimate the tipping point for the positive adjustments (e.g., ISO exercises) that, when added back to your taxable income, can trigger the AMT...

How does the wash sale rule apply if I sell ISO stock to avoid AMT and then quickly repurchase the stock at current market prices?

The wash sale rule disallows the loss on a sale of stock if the same stock...

I have both in-the-money and underwater options. If I exercise them all and immediately sell the stock, can I offset the gains with the losses on the underwater options?

This is wishful thinking, because these are two separate transactions. It does not make sense to...

UPDATED! Will I receive any mandatory information statement from my company about exercises, purchases, and sales related to my stock options and/or employee stock purchase plan?

Companies often give employees access to their stock option, ESPP, and restricted stock holdings and transactions with paper statements and/or through a website. Apart from the W-2 and 1099 requirements, Section 6039(a) of the Internal Revenue Code requires companies to...

If I move to another country to work, will I still have to pay US taxes on option exercises, restricted stock vesting, and stock sales? Can I avoid double taxation?

The United States taxes the worldwide income of US citizens regardless of whether the income arises from activities in the US. In addition, the other country may impose taxes too. But the US has tax treaties with certain nations to help taxpayers avoid double taxation...

What happens if I live in state A when my stock options are granted, state B when I perform some of my services, state C when I exercise the options, and state D when I sell the shares?

Generally, each state you live in determines what income is taxable and when. For administrative ease, many companies...

NEW! Can the IRS seize stock options or restricted stock under a tax lien?

The IRS can seize your stock options if it applies a federal tax lien to you for unpaid taxes. After seizing your stock options, the IRS can also...

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