Taxation of Equity Compensation in an International Context
Equity compensation such as Restricted Stock Units (RSUs) and employee stock options has become increasingly common, especially in international companies and tech firms. In our experience, these benefits often raise tax questions for expats living in Germany, especially when they are earned in an international context. Our clients often ask us:
When are my RSUs/stock options taxed? Which country taxes them? And what happens if you move internationally during the vesting/holding period?
This guide explains the key tax aspects expats should understand if they have or receive RSUs or stock options while living in Germany. This guide should be read in conjunction with our Beginner’s Guide (Income Tax in Germany for Expats: A Beginner’s Guide – prinz.tax).
What Are RSUs and Stock Options and Why are they Relevant for Taxes in Germany?
RSUs and stock options are forms of employee compensation that are linked to company shares.
RSUs are promises to receive company stock once certain conditions are met, usually time-based vesting. When they vest, you receive actual shares.
Stock options, by contrast, give you the right to buy shares at a fixed price in the future. They only become valuable if the market price exceeds that exercise price.
While both are linked to equity, their RSU/stock option taxation in Germany can differ depending on timing and structure. Generally, they are treated as part of employment income under § 19 EStG and are usually considered non-cash income under § 8 (2) EStG. For non-public and small companies (e.g. start-ups, tech companies) special rules apply under § 19a EStG.
When Are RSUs Taxed in Germany?
RSUs are generally taxed at the time they vest, not when they are granted. Usually, this is the time when the contractual incentive becomes available to the employee by transferring the actual stock into the employee’s brokerage account.
At vesting, the market value of the shares is treated as employment income. This means the value is subject to wage tax, social security contributions may apply, and the income is taxed at your personal income tax rate.
In practice, employers often have an agreement with their employees that they sell a portion of the shares at the time of vesting, to use the proceeds to pay wage tax.
When Are Stock Options Taxed?
Stock options are taxed when you exercise them, not when they are granted (§ 38 LStH). At exercise, the difference between the market value and the exercise price is considered employment income and taxed accordingly, if the options are tradable.
Exceptions apply under certain circumstances, such as non-tradeable options, sale of the options to a third party, exercise restrictions imposed by the employer, a settlement agreement, or in other cases. To ensure proper tax treatment, the exact contract should be reviewed carefully. Because the taxable event is tied to exercise, employees sometimes have planning opportunities regarding timing.
Is Equity Compensation Taxed as Salary or Capital Gains under German tax law?
Equity compensation is usually taxed as employment income (individual tax rate) but capital gains tax rules (flat tax rate) can apply.
- The portion linked to your employment (vesting or exercise) is taxed as salary income.
- After vesting of the RSUs or exercise of the employee stock options, any further increase in value is typically taxed later as capital gains when you sell the shares.
Practical experience: the distinction between income before and after vesting/exercise is important, because employment income in Germany is typically taxed at much higher rates (for expats often 42%) than investment income (flat tax of 25% plus solidarity surcharge).
Do I Pay Tax in Two Countries for International Stock Compensation?
In our experience, one of the most common concerns expats have is: Do I need to pay taxes in two countries for my RSU/stock options and how can I avoid double taxation? What happens if I move internationally during vesting?
If you worked in another country during the vesting period and later move to Germany, usually both countries claim taxing rights. The criticality of international tax implications is demonstrated by the fact that sometimes these cases are disputed in court (e.g. Finanzgericht Köln, 15 K 2686/11, and Entscheidung Detail | Bundesfinanzhof).
If you have dual tax residence, please read our blog entry Dual Tax Residency: What Happens If Two Countries Claim You? – prinz.tax.
Tax treaties usually allocate income based on where the work was performed during the vesting period. This means the taxable income on RSUs is usually split between countries based on the time of employment in each country. Germany taxes the portion of equity income related to work performed while you were tax resident or working here. The other portion of your compensation is not taxed again in Germany if proper documentation is available.
Practical recommendation: In practice, make sure that you are tracking where you worked during the vesting period so that your income can be allocated time-based and the German tax administration does not double tax you. Furthermore, proof of taxation in the foreign jurisdiction is required (§ 32b (1) S. 1 Nr. 1 EStG, § 50d (8) and (9) EStG). Without careful analysis, double taxation risks arise.
What If I Work Remotely from Germany for a Foreign Employer?
Some expats work remotely for non-German companies that do not run German payroll. In these cases, German tax withholding may not occur automatically. The responsibility then shifts from the employer to the individual taxpayer to declare the income correctly in your German tax declaration.
This can lead to unexpected tax payments if not planned for in advance. Also, you may have to request a tax refund from your home country if your foreign employer withheld taxes on your behalf. The tax risk can be significant in such situations, and we recommend addressing them quickly.
Should I Sell Shares from Equity Compensation Immediately After Vesting/Exercise?
From a German tax perspective, selling immediately does not avoid income tax on vesting. German income tax arises regardless of whether you sell or hold the shares.
However, selling immediately can reduce market risk. If you keep the shares and the price falls, you may have already paid tax on a higher value than what you eventually realize. Also, it can reduce the complexity of your tax situation if you separate your employment-related income entirely from your investment income.
I Heard There are Special Rules for Start-Up Stock Options, is this Correct?
Germany has introduced certain tax relief provisions under § 19a EStG for start-up employee participation programs. Under specific conditions, taxation may be deferred until shares are sold. However, the rules are technical and depend on employer size, structure, and participation program details.
Employees should verify together with their employer’s HR and tax department whether their plan qualifies before relying on such deferral.
Possible pitfall from Prinz.tax experience: Leaving Germany after having received equity compensation with tax deferral under § 19a EStG only defers taxes for such benefits. It may require you to file a tax declaration even after you have left Germany and are no longer a tax resident.
What Should Expats Keep in Mind Regarding International Taxation of Stock Compensation?
If you receive RSUs or stock options while living in Germany, it is important to:
- Understand when taxation of equity compensation occurs.
- Taxable events typically occur at vesting for RSUs and exercise for stock options.
- Knowing the timing helps you plan for wage tax and potential capital gains.
- Track your work location by country during RSU/stock option vesting periods.
- Record the countries where you performed work while RSUs or stock options were accruing.
- This ensures correct allocation of income across jurisdictions and helps avoid double taxation.
- Check employer withholding and deferral rules under § 19a EStG.
- Confirm whether your German employer withholds wage tax on RSUs or stock options.
- For start-up equity programs, check if tax deferral under § 19a EStG applies.
- Retain RSU/stock option plan documents and vesting schedules.
- Retain contracts, grant letters, and vesting calendars for accurate reporting and audits.
- Proper documentation is critical for cross-border taxation cases.
- Maintain documentation for foreign taxation in cross-border situations.
- If part of your RSUs or stock options is taxed abroad, maintain proof of payment.
- This supports claims for exemptions or credit in Germany under § 32b and § 50d EStG.
- Seek expert tax advice prior to international relocation as an expat.
- Cross-border RSU and stock option taxation is complex and often subject to tax treaties.
- Early consultation helps optimize timing, reduce double taxation, and avoid compliance issues.
Equity compensation can create significant tax exposure, especially in cross-border situations, and it can become a matter of concern for beneficiaries when it comes to tax filing. Adequate understanding, documentation and tax advice are essential.
Do You Need Help With RSU or Stock Option Taxation in Germany?
Equity compensation for expats frequently touches multiple tax systems at once. Cross-border equity compensation tax rules are difficult to understand and require precise interpretation and application.
At Prinz.tax, we help international employees understand their cross-border tax obligations in Germany for employee share plans, avoid double taxation, and ensure their equity-based compensation is reported correctly in their German tax declaration. We have helped many clients navigate cross-border tax reporting of RSUs and stock options and we would love to assist you. Proper planning for RSUs, stock options, and other equity-based compensation ensures expats in Germany remain compliant, optimize tax outcomes, and avoid double taxation across borders.
