Use Tax Loss Harvesting to Cut Your IRS Bill

Key Takeaways

• You can use up to $3,000 in net capital losses each year to directly reduce the taxable income from your business or salary.
• Short-term capital gains are taxed at the same high rates as your regular business income, making them a primary target for tax reduction.
• The IRS Wash Sale rule prevents you from claiming a loss if you buy a 'substantially identical' investment within 30 days before or after the sale.

Conventional wisdom says you should always hold onto your stocks until they turn a profit. Here's why that's wrong for most small owners: by refusing to sell a losing investment, you're passing up a direct discount on your tax bill that could keep more cash in your business checking account today.

The Math of Offsetting Your Income

When your business makes a profit, the IRS wants its cut. If you run a sole proprietorship or a single-member LLC (Limited Liability Company), that profit flows directly to your personal tax return. This is where most owners get hit the hardest. However, the IRS allows you to use investment losses to cancel out investment gains. If your losses are bigger than your gains, you can use up to $3,000 of the remaining loss to lower your other income, like the money you made from your plumbing business or your dental practice.

Say you had a bad year in a specific brokerage account and lost $5,000, but you have no investment gains to offset. You can take $3,000 of that loss and subtract it from your business profit this year. If you're in the 24% tax bracket, that's a $720 bill you just deleted. You don't lose the remaining $2,000 either. You carry it forward to next year. You can find the specific rules on how these limits work at IRS.gov.

Harvesting Losses Before Year-End

Tax loss harvesting is just a fancy way of saying 'selling a lemon to save on taxes.' Many owners wait until December 31 to look at their portfolios, but that's often too late to make a strategic move. If you see an investment that has dropped in value and you no longer believe in its long-term growth, selling it now creates a 'realized loss.' This is a paper tool you use to shield your hard-earned business revenue from the tax man.

(A quick note: this only works in regular brokerage accounts, not in your 401k or IRA because those are already tax-advantaged.)

For a solo consultant or a small retail owner, this is one of the few ways to lower a tax bill without spending more money on business equipment or marketing. Instead of buying a new truck you don't need, you're simply capturing a loss that already happened on paper and turning it into a tax win. The Securities and Exchange Commission provides a basic breakdown of how these transactions affect your overall tax liability.

Avoiding the Wash Sale Trap

You cannot sell a stock at 10:00 AM to claim the tax loss and then buy it back at 10:05 AM. The IRS calls this a 'Wash Sale.' If you buy the same or a very similar stock within 30 days of the sale, they'll disallow your tax loss. This mistake happens often when owners try to be too clever with their personal portfolios while busy running their companies. It effectively wipes out the tax benefit you were chasing.

If you truly want to stay invested in a specific sector, you have to wait out the 31-day window or buy something that isn't 'substantially identical.' For example, selling one airline stock and buying a different one usually doesn't trigger the rule, but check with a tax pro if you're moving large sums. Most people get this wrong by setting up automatic re-investments in their accounts, which can accidentally trigger a buy and ruin the harvest.

Making the Move This Week

To get started, you don't need a high-priced wealth manager. Open your personal brokerage account and look for the 'unrealized gain/loss' column. Identify any positions that are currently in the red. If you don't see a clear path for them to recover, or if you need to offset a big profit month in your business, consider selling those positions to lock in the tax benefit.

Check your year-to-date gains and losses first. If you've already sold stocks for a profit this year, you should look for enough losses to cancel those out first, then aim for that extra $3,000 to head off your business income tax. This whole process takes about twenty minutes but can save you hundreds or thousands in April.

Look at your brokerage statements today and identify one losing position you can sell to start your tax offset.

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📋 Disclaimer

This article is for informational purposes only and does not constitute legal, tax, financial, or professional advice. Laws and regulations change frequently, and the information presented may not reflect the most current legal developments. Always consult with a qualified professional (CPA, attorney, financial advisor) before making business decisions based on this content. MyBizNerd may receive compensation through affiliate links, but this never influences our recommendations.

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