What is the difference between RSUs, NSOs, ISOs, and ESPPs?

RSUs are shares granted after vesting conditions are met. NSOs allow you to buy shares at a set price without special tax treatment. ISOs can qualify for lower tax rates if holding rules are met. ESPPs allow employees to buy company stock at a discount.

Share Incentive Plan Calculator

Q: How are RSUs taxed in the US?

In the US, Restricted Stock Units (RSUs) are taxed as ordinary income when they vest. The taxable amount is the fair market value of the shares on the vesting date, and employers often sell a portion of shares to cover withholding tax.

Q: What is the best time to sell stock options?

The best time depends on your financial goals and tax situation. Many investors hold ISOs or ESPPs for at least one year after exercise and two years after grant to qualify for lower long-term capital gains tax rates.

Q: How much tax do I pay on stock options?

For NSOs, you pay ordinary income tax on the spread between strike price and market price. For ISOs, you may not owe tax at exercise but could trigger Alternative Minimum Tax depending on your situation.

Q: What happens if the stock price drops after vesting?

You are taxed on the value at vesting. If the stock price later drops, you may be able to claim a capital loss when you sell the shares, which can offset gains or reduce taxable income.

Q: Do I pay tax twice on RSUs?

No, RSUs are not taxed twice. They are taxed as ordinary income at vesting, and only the additional profit after vesting is taxed as capital gains when you sell the shares.

By • Updated May 3, 2026

Enter your share details, growth rate, and tax to instantly calculate your equity value, net profit, and yearly breakdown.

Plan Details

Number of Shares Granted

Grant Price per Share

Expected Market Price at Sale

*Market price & growth rate are linked

Expected Annual Growth Rate (%)

*Updates automatically

Vesting Period (Years)

Holding Period after Vesting (Years)

Federal/Income Tax Rate (%)

*Taxes are estimated using simplified flat rates

Share Type

Country & Currency

No signup required • 100% free • Works for US, UK, Germany, Australia, France, India & more

Calculation Results

Total Value at Sale $0

Total Gain (Before Tax) $0

Estimated Taxes Simplified $0

Effective Annual Return 0%

Net Profit (After Tax & Cost)

Disclaimer: This calculator provides estimated values based on simplified financial assumptions. Actual tax and equity outcomes may vary significantly depending on country-specific regulations and your individual circumstances. Consult a certified financial advisor or tax professional for accurate, personalized tax calculations.

Visual Projections

Yearly Breakdown

Year	Share Price	Value of Shares	Cumulative Gain	Estimated Tax	Net After Tax

Related Calculators

LOAN

Expert Verified: This global stock compensation tool is built using standard financial algorithms and taxation logic for major global markets (US, CA, UK, etc.). Content is reviewed and managed by Himanshu Grewal for accuracy. Always consult a certified CPA or tax professional for official filing and personalized advice.

Calculate Your Equity Compensation Value Instantly

Most employees underestimate the real value of their stock compensation — share incentive plan calculator tool helps you see the actual numbers. Use this equity compensation calculator to estimate your stock options value, RSU income, and after-tax profit in seconds.

Start calculating your equity now

What is Equity Compensation (ESOP, RSU, Stock Options)?

Equity compensation allows employees to own a piece of their company. Often grouped under the term Employee Stock Ownership Plans (ESOPs) or Share Incentive Plans, these programs align your financial success with the company’s growth.

Understanding your after-tax stock profit can be highly complex. Depending on whether you receive Restricted Stock Units (RSUs), Non-qualified Stock Options (NSOs), or participate in an Employee Stock Purchase Plan (ESPP), you will face different vesting schedules and tax rules.

Our free stock profit estimator is designed to cut through the confusion. It acts as an all-in-one employee stock calculator, helping you project future market values, estimate ordinary income taxes, and find your exact net profit.

Share Incentive Plan Calculator – Estimate Stock Options, RSU & Equity Value

How to Use the Share Incentive Plan Calculator Online

This stock options profit calculator works seamlessly for RSUs, ISOs, NSOs, and ESPPs across the US, Canada, UK, Germany, Australia, and more.

Input Your Grant

Enter the exact number of shares granted to you and your strike price.

Set Market Growth

Predict future value by setting an expected annual growth rate or target market price.

Define Vesting

Use it as a vesting schedule calculator by adding your vesting and holding periods.

Apply Tax Rules

Enter your estimated income tax bracket and select your specific equity type.

Select Country

Choose your country to format the results accurately in USD, EUR, GBP, CAD, or AUD.

Analyze Results

View your interactive yearly breakdown chart and calculate your exact net profit.

Real Example: How Much Are Your RSUs Worth?

This equity compensation example shows how RSU value translates into real take-home income.

Let’s say you receive 1,000 RSUs at a market price of $50. Your total pre-tax value is $50,000. If your income tax rate is 25%, your estimated tax withholding would be $12,500 — leaving you with a $37,500 net profit.

Stock Options Profit & RSU Tax Formulas

These are the exact formulas used in most stock options calculators and equity compensation tools.

Total Equity Value Formula

Total Value = Number of Shares × Expected Market Price

Example: If you hold 1,000 shares and the market price reaches $85 — your total gross value is $85,000.

Total Gain (Profit) Formula

Total Gain = Total Value − (Number of Shares × Grant Price)

Example: If your total value is $85,000, and your grant (strike) price was $50 per share — your total pre-tax gain is $35,000. Note: For RSUs, the grant price is effectively $0.

Note: This equity calculator provides estimates based on simplified tax assumptions. Actual tax liability may vary significantly depending on your total income, state or provincial taxes, Alternative Minimum Tax (AMT), and specific company policies.

Tax Implications: US, Germany & Global Rules

Navigating equity compensation taxes requires knowing your local laws. Here is a breakdown of how the primary markets handle stock benefits.

🇺🇸

United States: Equity Compensation Taxes

In the US, taxation heavily depends on the asset type and your holding period. Refer to the IRS guidelines for official documentation.

RSUs (Restricted Stock Units)

Taxed as ordinary income as soon as they vest. The company usually auto-withholds a portion of shares to cover federal taxes.

NSOs (Non-Qualified Options)

Taxed at the time of exercise. The "spread" (Market Price — Strike Price) is taxed at your ordinary income rate.

ISOs (Incentive Stock Options)

Highly favorable if held long-term. No regular income tax upon exercise, but you may be subject to the Alternative Minimum Tax (AMT).

Capital Gains Tax

If you hold the stock for more than one year after purchasing, subsequent profits are taxed at the lower long-term capital gains rate.

Global Equity Tax Rules

🇩🇪

Germany

Since January 2024, employees receive an annual €2,000 tax-free allowance for share benefits.

Capital gains are generally taxed at a flat 25% plus a 5.5% solidarity surcharge.

🇨🇦

Canada

Stock options are taxed as an employment benefit when exercised.

You may be eligible for a 50% deduction on the benefit if certain CCPC conditions are met.

🇦🇺

Australia

Governed by the Employee Share Scheme (ESS) rules.

Taxation can be upfront or deferred, and holding shares for over 12 months unlocks the 50% Capital Gains Tax discount.

Types of Equity: RSUs, ISOs, NSOs & ESPPs

Knowing your specific asset type is crucial when calculating your stock grant value.

Restricted Stock Units (RSUs)

RSUs are an actual grant of shares. You don't buy them; you earn them over a vesting period. Once vested, they are yours, but they count as ordinary income immediately upon vesting based on the stock’s closing price.

Stock Options (ISOs & NSOs)

Options give you the right to buy shares at a discounted "strike price." You only make money if the market price exceeds your strike price.

Incentive Stock Options (ISOs): Favorable tax rules, mostly offered by startups.
Non-Qualified Stock Options (NSOs): Standard options taxed at exercise.

Employee Stock Purchase Plans (ESPPs)

Common in public companies, ESPPs allow you to purchase company stock at a discount (often 15%) using payroll deductions. Selling them too early triggers a "disqualifying disposition," taxing the discount as regular income.

How Startup Equity Compensation Works (With Real Examples)

The "Dry Income" Problem

Startups often use equity to attract top talent. However, private shares come with a major liquidity risk known as "dry income." This happens when you are taxed on the value of vested shares, but you cannot legally sell them yet because the company is not public.

To combat this, many governments are introducing deferred tax legislation for early-stage companies, allowing employees to delay the tax bill until a liquidity event (like an IPO or acquisition).

Best Practices for Startup Employees

Understand your vesting cliff — usually 1 year before the first batch of shares unlocks.
Calculate your potential strike price costs before the 90-day post-termination exercise window closes.
Consult tax professionals about an 83(b) election if you are granted early-stage startup stock.

Who Should Use This Equity Calculator?

Corporate Professionals

Perfect for tech workers and executives modeling their upcoming RSU vest dates and calculating ESPP benefits.

Job Seekers & Evaluators

Use it as an equity compensation calculator to compare multiple job offers and see the real value of sign-on equity.

Startup Employees

Forecast your ISO and NSO potential in best-case and worst-case IPO scenarios.

Smart Tax Planners

Strategize tax-efficient selling schedules to minimize capital gains hits.

Frequently Asked Questions

How are RSUs taxed in the US?

What is the best time to sell stock options?

How much tax do I pay on stock options?

What happens if the stock price drops after vesting?

What's the difference between RSUs, NSOs, ISOs, and ESPPs?

Do I pay tax twice on RSUs?

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