What counts as a tax-deductible investment expense
You can deduct certain costs related to managing investments, but not the investments themselves or their losses. The IRS separates investment expenses into two categories: those you can deduct on Schedule C (if you're a trader or run an investment business) and those you can deduct on Schedule A (if you're a regular investor). Most people fall into the second group, and the rules there are strict.
For regular investors, deductible expenses include investment advisory fees, brokerage commissions, custodian fees for IRAs, and fees paid to a tax professional specifically for tax preparation related to investments. You cannot deduct the cost of investment publications, seminars, or education. You also cannot deduct losses on stocks, bonds, mutual funds, or other securities — though you can use capital losses to offset capital gains in certain ways.
The key distinction is between the cost of the investment itself and the cost of managing it. Paying $5,000 to buy a stock is not deductible. Paying $50 to a broker to execute that trade may be deductible, depending on your filing status and total deductions.
Key Takeaways
- Investment advisory fees, brokerage commissions, and custodian fees for IRAs are deductible if you itemize deductions on Schedule A.
- The cost of the investment itself — the money you spend to buy stocks, bonds, or mutual funds — is never deductible.
- Capital losses cannot be deducted directly, but you can use them to offset capital gains, and up to $3,000 of net losses can offset ordinary income each year.
- Tax preparation fees related to investment income are deductible, but fees for general tax prep or investment education are not.
- You must itemize deductions on Schedule A to claim investment expenses; the standard deduction is usually larger for most filers.
Investment expenses you can deduct
Investment advisory and management fees are deductible if you itemize. This includes fees paid to a financial advisor, investment manager, or robo-advisor for ongoing portfolio management. It also includes fees charged by your brokerage for account maintenance, though many brokerages have eliminated these fees in recent years.
Custodian and trustee fees for IRAs, SEP-IRAs, and other retirement accounts are deductible if paid separately from the account balance. If your custodian charges a fee and deducts it from your account, you cannot deduct it again. If you pay the fee outside the account, you can deduct it on Schedule A.
Brokerage commissions — the fees charged when you buy or sell securities — are deductible. However, many brokerages now offer commission-free trading, so this deduction is less common than it once was. When commissions do apply, they reduce your cost basis in the investment, which affects your capital gain or loss calculation when you sell.
Tax preparation fees specifically for investment-related tax work are deductible. This means fees paid to a CPA or tax software for the portion of time spent on Schedule D (capital gains and losses), Schedule B (interest and dividend income), or other investment-related forms. You cannot deduct fees for general tax prep or for non-investment parts of your return.
What you cannot deduct
The purchase price of any investment is never deductible. Whether you buy $10,000 in stock, $5,000 in bonds, or $2,000 in a mutual fund, that money is a capital investment, not an expense. The cost basis of the investment is used to calculate your gain or loss when you sell, but it is not deductible in the year you buy.
Investment losses on individual securities cannot be deducted directly against your ordinary income. If you sell a stock at a loss, you cannot write off that loss on your tax return the way you would a business expense. Instead, capital losses are used to offset capital gains. Only if your total capital losses exceed your total capital gains can you deduct up to $3,000 of the net loss against ordinary income in a single year. Any loss beyond $3,000 carries forward to future years.
Costs related to investment education are not deductible. This includes books, seminars, online courses, or subscriptions to investment newsletters or research services. The IRS treats these as personal education expenses, not business or investment management costs.
Losses on personal-use property — such as a decline in value of your home or car — are never deductible. Only investment property losses can potentially be used to offset gains.
How capital losses work and when they help your taxes
Capital losses occur when you sell an investment for less than you paid for it. If you bought a stock for $1,000 and sold it for $700, you have a $300 capital loss. This loss does not disappear; it can be used to reduce your tax bill, but only in specific ways.
First, capital losses offset capital gains dollar-for-dollar. If you have $5,000 in capital gains from selling other investments and $3,000 in capital losses, your net capital gain is $2,000. You pay tax only on the $2,000, not the full $5,000.
Second, if your capital losses exceed your capital gains, you can deduct up to $3,000 of the net loss against your ordinary income (wages, salary, interest, etc.) in a single tax year. So if you have $8,000 in losses and $2,000 in gains, your net loss is $6,000. You can deduct $3,000 against ordinary income this year. The remaining $3,000 carries forward to next year, where you can deduct another $3,000 against ordinary income, and so on until the loss is fully used.
This is called "loss harvesting" — deliberately selling investments at a loss to offset gains or ordinary income. It is a legitimate tax strategy, but it requires careful record-keeping and timing. Selling a security at a loss and then buying it back within 30 days (or buying a substantially identical security) triggers the "wash sale" rule, which disallows the loss deduction.
The wash sale rule and how it affects your deductions
The wash sale rule prevents you from deducting a loss if you buy the same or a substantially identical security within 30 days before or after the sale. The 30-day window is 61 days total: 30 days before the sale, the day of the sale, and 30 days after.
If you sell a stock at a loss on January 15 and buy the same stock again on February 10, the loss is disallowed. The cost basis of the new purchase is increased by the disallowed loss amount, so the loss is deferred rather than eliminated — you will account for it when you eventually sell the new shares without repurchasing.
The rule applies to substantially identical securities, not just the exact same stock. Buying a different share class of the same company or a very similar ETF may trigger the rule. However, buying a different company's stock or a different sector fund does not trigger it, even if it is similar in nature.
Spouses are treated as a single person for wash sale purposes if they file jointly. If your spouse buys the security within the 30-day window, the wash sale rule applies to you as well.
Itemizing versus the standard deduction
To claim investment expenses as a deduction, you must itemize deductions on Schedule A. Most taxpayers take the standard deduction instead, which is a flat amount that reduces your taxable income without requiring you to list individual expenses.
For the 2024 tax year, the standard deduction is $14,600 for single filers and $29,200 for married couples filing jointly. These amounts change each year. If your total itemized deductions (including investment expenses, mortgage interest, property taxes, charitable donations, and medical expenses) exceed the standard deduction, itemizing saves you money. If they do not, the standard deduction is better.
For most investors, investment expenses alone do not exceed the standard deduction. You would need to combine them with other deductible expenses like mortgage interest or significant charitable donations to make itemizing worthwhile. A tax professional can calculate which approach saves you more in a given year.
Record-keeping requirements for investment deductions
The IRS requires you to keep records of all investment transactions and expenses for at least three years, though six years is safer. For deductible expenses, keep receipts or statements showing the amount paid, the date, and what the fee was for.
For brokerage commissions, your broker's statements show the commission charged on each trade. For advisory fees, keep the invoice or statement from your advisor. For custodian fees paid outside your retirement account, keep the receipt or bank record showing the payment.
For capital gains and losses, keep the purchase confirmation, sale confirmation, and any reinvestment statements. Your broker usually provides a year-end statement showing your cost basis and realized gains and losses, but you should verify this against your own records. Errors in cost basis are common and can lead to overpaying taxes.
If you use tax software or a tax professional, they will ask for these records. Having them organized before tax time speeds up the process and reduces errors.
Frequently Asked Questions
Can I deduct losses on my 401(k) or IRA?
No. Losses inside retirement accounts cannot be deducted. Retirement accounts are tax-deferred or tax-free, so gains and losses inside them do not affect your current tax bill. If you withdraw money from a traditional IRA and it has lost value, you still cannot deduct the loss.
What if I lost money on an investment I inherited?
Inherited investments receive a "step-up" in cost basis, meaning your cost basis is the value on the date of death, not what the original owner paid. If the investment loses value after you inherit it, you can deduct that loss when you sell, just like any other investment loss.
Are dividend and interest income deductible?
No. Dividend and interest income is taxable income, not an expense. However, fees paid to earn that income — such as advisory fees or custodian fees — are deductible if you itemize.
Can I deduct investment losses if I do not itemize?
You cannot deduct investment expenses if you take the standard deduction. However, capital losses can still offset capital gains regardless of whether you itemize. The $3,000 annual loss deduction against ordinary income also applies whether you itemize or not.
Does the wash sale rule apply to cryptocurrency?
Yes. The IRS treats cryptocurrency as property, and the wash sale rule applies to crypto transactions just as it does to stocks and bonds. Selling Bitcoin at a loss and buying it back within 30 days disallows the loss deduction.