Logo
Home
>
Tax Planning
>
Track capital gains and losses for end-of-year optimization

Track capital gains and losses for end-of-year optimization

04/15/2025
Bruno Anderson
Track capital gains and losses for end-of-year optimization

As the year draws to a close, investors face a critical opportunity to optimize their tax outcomes. Every decision, from selling a small block of shares to rebalancing a portfolio, can shape your tax bill in the coming spring.

This article provides practical, actionable guidance and strategies to help you navigate capital gains, losses, and year-end maneuvers that preserve wealth and minimize taxes.

Understanding Capital Gains and Losses

A capital gain occurs when you sell an asset for more than its purchase price, while a capital loss arises when the sale price is lower than the original cost. For tax purposes, gains and losses are only recognized once the asset is sold.

Short-term gains (assets held one year or less) are taxed at your ordinary income rate, which can reach up to 37% for high earners in 2024. Long-term gains (held more than one year) enjoy preferential rates of 0%, 15%, or 20%, depending on your taxable income and filing status.

2024 and 2025 Capital Gains Tax Brackets

Knowing the thresholds for long-term rates is crucial when planning sales or harvesting losses near year-end.

End-of-Year Optimization Strategies

Year-end timing can unlock significant savings. By strategically realizing losses or gains, you can tilt your tax bill in your favor. Plan a structured year-end review of holdings to ensure you’ve captured every opportunity.

Tax-Loss Harvesting Explained

Tax-loss harvesting is the practice of selling investments at a loss to offset gains realized elsewhere. This approach reduces your taxable income and effectively lowers the amount you owe.

  • Offset short-term losses against short-term gains first
  • Use long-term losses to offset long-term gains
  • Carry forward excess losses up to $3,000 per year

Remember, any excess net capital losses can be carried forward indefinitely, giving you a tool to mitigate future gains.

Avoiding the Wash-Sale Trap

The wash-sale rule disallows a loss if you repurchase the same or a substantially identical security within 30 days before or after the sale. To safeguard your deduction, wait at least 31 days before buying back the position.

Failing to respect this rule can erase the benefit of harvested losses, so maintain discipline around purchase timing to preserve your tax savings.

Portfolio Review and Timing Matters

Conduct a thorough review of your portfolio as December approaches. Identify positions with large unrealized gains that may warrant realization at lower current rates, especially if your income is near a bracket threshold.

If you anticipate moving into a higher tax bracket next year, consider realizing gains now while rates are lower. Conversely, if you’ve had a profitable year, locking in losses can offset gains and reduce your overall liability.

Advanced Techniques: Donations and Gifting

Beyond selling and harvesting, other tactics offer tax perks. Donating appreciated securities held over one year can eliminate capital gains tax on the appreciation and generate a charitable deduction equal to the asset’s fair market value.

You may also gift up to $18,000 per recipient (or $36,000 per couple) in 2024 without incurring gift tax. While this strategy is more estate planning–focused, it can shift future appreciation to recipients in lower tax brackets.

Common Pitfalls to Avoid

Even seasoned investors stumble over basic mistakes. Avoid these traps to ensure your year-end plan succeeds:

  • Triggering a wash sale by repurchasing too soon
  • Misreporting cost basis and inviting IRS scrutiny
  • Letting tax strategy override your investment objectives

Conclusion: Bringing It All Together

End-of-year tax optimization offers a powerful way to unlock tax-saving potential and enhance portfolio efficiency. By tracking every gain and loss, respecting rules like the wash-sale provision, and leveraging advanced tactics like donations, you can reshape your tax outcome.

Approach this process with a methodical plan: review holdings now, execute harvesting or realizing sales thoughtfully, and consult a qualified advisor for complex situations. With proactive steps, you’ll enter the new year with greater confidence and a stronger financial foundation.

Bruno Anderson

About the Author: Bruno Anderson

Bruno Anderson