What investment costs reduce your taxable income

Not all money you spend on investments comes back as a tax deduction. The IRS allows you to deduct certain investment expenses and losses, but the rules depend on what type of investment you own and how you bought it. The most common deductible items are investment advisory fees, brokerage commissions, and losses from selling stocks or bonds at a loss.

The key distinction is between capital losses (money you lose when an investment drops in value) and investment expenses (fees you pay to manage or trade investments). Both can reduce what you owe, but they work differently on your tax return. Capital losses offset capital gains first, then up to $3,000 of ordinary income per year. Investment expenses are deductible only if you itemize deductions on Schedule A, and only the amount above 2% of your adjusted gross income counts.

Key Takeaways

  • Capital losses from selling stocks, bonds, or mutual funds at a loss can offset capital gains dollar-for-dollar, then reduce ordinary income by up to $3,000 per year.
  • Investment advisory fees, brokerage commissions, and custodial fees are deductible only if you itemize deductions, and only the portion above 2% of your adjusted gross income.
  • Losses on inherited property, investment real estate depreciation, and rental property expenses follow different rules and may offer larger deductions than stock losses.
  • Margin interest (interest on borrowed money used to buy investments) is deductible against investment income, but only up to the amount of investment income you earned that year.
  • Losses on personal-use property like your primary home are never deductible, even if the property loses value.

Capital losses from selling investments at a loss

When you sell a stock, bond, mutual fund, or other investment for less than you paid for it, you have a capital loss. This loss can reduce your taxes in two ways. First, it offsets any capital gains you had that year—if you sold one investment for a $5,000 profit and another for a $3,000 loss, you report only a $2,000 net gain. Second, if your losses exceed your gains, you can deduct up to $3,000 of the excess loss against your regular income (wages, salary, interest) in that tax year.

Any capital losses beyond the $3,000 annual limit carry forward to future years. You can use them in the next tax year and every year after that until they are exhausted. This means a large loss in one year does not disappear—it just spreads across multiple years. You report capital losses on Schedule D (Capital Gains and Losses), which you attach to your Form 1040.

One important rule: wash-sale losses. If you sell an investment at a loss and buy the same or a substantially identical investment within 30 days before or after the sale, the IRS disallows the loss. The loss is added to the cost basis of the new investment instead. This rule prevents people from selling at a loss purely for the tax deduction and immediately buying back the same thing.

Investment fees and advisory expenses

Fees you pay directly to investment advisors, financial planners, or brokers are deductible, but only under specific conditions. You must itemize deductions on Schedule A rather than take the standard deduction. You can only deduct the portion of your investment expenses that exceeds 2% of your adjusted gross income (AGI). For example, if your AGI is $100,000 and you paid $3,000 in investment fees, only $1,000 is deductible ($3,000 minus $2,000, which is 2% of $100,000).

Investment expenses include advisory fees, brokerage commissions on trades, custodial fees charged by your brokerage, and fees for investment publications or software. However, fees for tax preparation related to investments are deductible as tax preparation expenses, not investment expenses, and follow different rules. Fees for managing a 401(k) or IRA are generally not deductible because contributions to those accounts are already tax-advantaged.

Many investors find that the 2% threshold eliminates most or all of their investment expense deduction, especially if their income is high. If your AGI is $150,000 and you paid $2,000 in fees, none of it is deductible because 2% of $150,000 is $3,000. This is why investment expense deductions matter most to people with very high investment fees relative to their income.

Margin interest and investment borrowing costs

If you borrow money to buy investments (called buying on margin), the interest you pay on that loan is deductible. However, you can only deduct margin interest up to the amount of investment income you earned that year. Investment income includes dividends, interest, and capital gains. If you paid $5,000 in margin interest but earned only $3,000 in investment income, you can deduct only $3,000 in the current year.

The unused $2,000 in margin interest does not disappear—it carries forward to future years and can be deducted when you have enough investment income to cover it. You report margin interest on Form 4952 (Investment Interest Expense Deduction) and attach it to your tax return. This rule exists because the IRS wants to prevent people from using investment borrowing to create large deductions against their regular income.

Losses on inherited investments and property

If you inherit an investment and it loses value after you receive it, you cannot deduct that loss. The IRS allows a step-up in basis when property is inherited, meaning your cost basis is reset to the fair market value on the date of death. Any loss that occurred before you inherited it is not your loss to deduct. However, if you sell the inherited investment for less than its value on the date of death, that loss is deductible using the same capital loss rules as any other investment loss.

Inherited real estate is treated differently. If you inherit rental property and it declines in value, you can depreciate the building (not the land) over time and deduct that depreciation from rental income. This is separate from capital loss treatment and often produces larger deductions than a capital loss would.

Losses you cannot deduct

Losses on your primary home or personal-use property are never deductible, even if the property loses significant value. If you bought your house for $400,000 and it is now worth $300,000, you cannot deduct that $100,000 loss on your taxes. The same rule applies to personal vehicles, furniture, or any property you use for personal reasons rather than investment or business.

Losses on cryptocurrency, collectibles, and other speculative investments follow the same capital loss rules as stocks and bonds, but some have additional restrictions. For example, losses on collectibles (art, coins, stamps) are subject to a 28% long-term capital gains rate rather than the standard rates. Losses on personal loans to friends or family are not deductible unless the loan was a genuine business debt.

Gambling losses are deductible only to the extent of gambling winnings, and only if you itemize deductions. If you won $2,000 at a casino and lost $3,000, you can deduct only $2,000 of the loss. The remaining $1,000 is not deductible.

Rental property expenses and depreciation

If you own rental property, the expenses you pay to maintain and operate it are fully deductible against rental income. This includes mortgage interest, property taxes, insurance, repairs, utilities, property management fees, and advertising for tenants. These deductions work differently from investment expense deductions because they are not subject to the 2% threshold and do not require itemizing.

Depreciation is a major deduction for rental property owners. You can deduct a portion of the building's cost each year over 27.5 years (for residential property) or 39 years (for commercial property). The land itself cannot be depreciated, only the structure. If you bought a rental house for $300,000 and the land is worth $75,000, you depreciate only $225,000. This deduction reduces your taxable rental income but also affects your taxes when you sell the property.

Frequently Asked Questions

Can I deduct investment losses if I do not itemize deductions?

Capital losses are always deductible regardless of whether you itemize, up to $3,000 per year against ordinary income. However, investment expenses (advisory fees, commissions) are deductible only if you itemize deductions on Schedule A. If you take the standard deduction, investment expenses do not reduce your taxes.

What happens to capital losses that exceed $3,000 in a year?

Excess capital losses carry forward indefinitely to future tax years. You can use them to offset capital gains or reduce ordinary income by up to $3,000 each year until the losses are fully used. They never expire, but they can only be used by you—they do not transfer to heirs or other people.

Does the wash-sale rule apply to all types of investments?

The wash-sale rule applies to stocks, bonds, mutual funds, and most securities. It does not apply to real estate or cryptocurrency (though the IRS may change this). Substantially identical means the same security—selling Apple stock and buying Apple stock triggers the rule, but selling Apple and buying Microsoft does not.

Can I deduct losses on investments held in a 401(k) or IRA?

No. Losses inside retirement accounts are not deductible because the accounts themselves are tax-advantaged. You only report gains or losses when you withdraw money from the account in retirement. This is one reason diversification matters inside these accounts—you cannot use losses to offset other income.

Is the interest I paid on a loan to buy investment property deductible?

Yes, if the property generates investment income. Interest on a loan to buy stocks or bonds is deductible as margin interest, up to your investment income for the year. Interest on a loan to buy rental property is deductible as a rental expense. Interest on a loan to buy your primary home is deductible as mortgage interest, not investment interest.