
When it comes to selling assets, what you keep is far more important than the sale price. Navigating the 2026 tax landscape requires more than just picking the right stocks or timing the real estate market; it requires a strategic understanding of how to lower your tax bill by accounting for every eligible expense. From the hidden costs of closing a deal to the power of tax-loss harvesting, knowing which deductions can offset your capital gains is the key to protecting your portfolio’s growth and ensuring you aren’t overpaying Uncle Sam.
To determine taxable capital gains for the 2026 tax year, the IRS allows you to deduct specific expenses that reduce either the final sale proceeds or the original cost basis of the asset.
Direct Reductions to Capital Gains
Taxable gain is calculated by subtracting your adjusted basis and selling expenses from the total sale price.
Selling Expenses: You can deduct costs directly related to the transfer or sale of the asset, such as:
- Brokerage commissions and transaction fees for stocks and securities.
- Legal fees, advertising, and appraisal costs.
- Closing costs for real estate, including title search fees, notary fees, escrow fees, and recording fees.
- Marketing and staging costs to prepare a property for sale.
- Transfer taxes or stamp taxes charged by local or state governments.
Adjusted Cost Basis (Acquisition Costs): You can increase your basis (thereby decreasing your gain) by including:
- The original purchase price of the asset.
- Incidental acquisition costs like sales taxes, excise taxes, and shipping/handling.
- Installation and setup charges required to make the asset usable.
- Capital improvements for real estate that add value or prolong the property’s life (e.g., a new roof, kitchen remodel, or HVAC system). Note: Routine repairs like painting or fixing leaks are not deductible.
Offsetting Gains with Losses
One of the most effective ways to reduce capital gains tax is by deducting capital losses.
- Tax-Loss Harvesting: You can use realized capital losses from selling underperforming investments to offset capital gains in the same year.
- Net Loss Deduction: If your total capital losses exceed your total capital gains, you can deduct up to $3,000 of the remaining loss against ordinary income ($1,500 if married filing separately).
- Loss Carryover: Any excess net capital loss above $3,000 can be carried forward indefinitely to future tax years.
Investment Interest Expense
If you borrowed money to purchase taxable investments (such as using a margin loan to buy stock), the interest paid may be deductible as an itemized deduction.
- The deduction is generally limited to your net investment income for the year.
- Any unused interest expense can be carried forward to the following tax year.
- This deduction is not allowed in any tax-deferred accounts, such as an IRA.
Non-Deductible Expenses for 2026
Under current laws (including the One Big Beautiful Bill Act effective for 2026), several formerly common expenses are not deductible for individual taxpayers:
- Miscellaneous Investment Fees: Investment advisory fees, IRA custodial fees, and accounting costs for individual investors are permanently disallowed.
- Personal Property Losses: You cannot deduct losses from the sale of personal-use property, such as your personal car or a primary residence.
- Securities Transaction Tax (STT): Certain taxes like STT or annual maintenance charges (AMC) for brokerage accounts cannot be claimed.
Maximizing tax efficiency in your investment portfolio requires careful attention to detail. By effectively tracking and managing adjustments to your cost basis and strategically utilizing tax loss harvesting, investors can potentially reduce their tax liability. Staying informed about current IRS regulations regarding investment expenses is crucial to ensure all deductions are properly claimed, ultimately allowing you to retain more of your investment returns.
Please comment or send an email if you have any questions.
Joe Baker, CFP®
Baker Asset Management, LLC
joebaker@bakerassetmanagement.com







