Tech professionals with RSUs, stock options, and ESPPs face unique tax-filing challenges. Understanding cost basis, double taxation risks, and proper reporting can prevent costly errors.
Tech professionals who receive equity compensation through restricted stock units, stock options, and employee stock purchase plans face distinct tax-filing challenges that can trigger costly mistakes. A Forbes article published in February 2026 identified five common tax-return errors related to these forms of compensation, highlighting the importance of accurate reporting and documentation when filing returns this year.
Unlike traditional salary, equity compensation creates multiple reporting touchpoints across different tax forms. RSU income typically appears as wages on Form W-2, while subsequent stock sales generate Form 1099-B reports. This dual reporting creates opportunities for confusion and potential double taxation if not handled correctly.
The tax treatment varies significantly based on the type of equity compensation and the timing of transactions. Understanding these distinctions is essential for accurate filing and avoiding unexpected tax bills or IRS inquiries.
One of the most frequent errors occurs when taxpayers fail to verify that the cost basis reported on Form 1099-B accounts for income already taxed through their W-2. When RSUs vest, the fair market value of the shares is reported as ordinary income on your W-2, and taxes are typically withheld at that time. When you later sell those shares, the cost basis should reflect this already-taxed amount.
If the cost basis is incorrectly reported as zero or a lower amount, you may inadvertently pay taxes twice on the same income—once as wages when the RSUs vested, and again as capital gains when you sold the shares.
Employee stock purchase plans introduce additional complexity because the tax treatment depends on whether you make a qualifying or disqualifying disposition. The timing of stock sales relative to both the purchase date and the offering date determines whether gains are taxed as ordinary income or capital gains.
Key ESPP considerations:
Incentive stock options present their own set of challenges, particularly around alternative minimum tax calculations. Exercising ISOs can trigger AMT liability even if you haven't sold the shares, and incorrect handling of these calculations is another common filing error identified in the Forbes analysis.
Coordinating equity compensation with tax-advantaged retirement accounts like 401(k)s can help manage overall tax liability, though the accounts serve different purposes and operate under distinct rules. Tax-deferred retirement accounts allow pre-tax contributions up to annual limits, while taxable brokerage accounts holding company stock have no contribution caps but offer no immediate tax benefits.
Understanding the distinction between these account types is essential for accurate reporting. Contributions to 401(k) accounts reduce current taxable income, while equity compensation typically increases it. Balancing contributions across account types requires attention to contribution limits and withdrawal rules that differ significantly between account types.
Proper documentation is your best defense against equity compensation tax errors. Before filing your 2026 return, gather all relevant forms and verify that reported figures align across documents:
Cross-reference these documents to ensure consistency and identify any discrepancies before submitting your return.
Equity compensation creates valuable wealth-building opportunities for tech professionals, but the tax complexity requires careful attention during filing season. Awareness of common mistakes—particularly around cost basis reporting, double taxation risks, ESPP disposition rules, and AMT calculations—can help you avoid costly errors on your 2026 return. When in doubt, maintaining thorough documentation and consulting with a tax professional familiar with equity compensation can provide peace of mind and ensure compliance with IRS rules.