Capital Gains Tax Explained: How to Reduce Taxes on Business Sales and Investments

Selling a business, property, or large investment can trigger a big tax bill. With the right plan, you can keep more of the profit. This guide explains what capital gains tax is, how short-term vs. long-term gains work, and practical ways to reduce or avoid capital gains tax in 2025—especially for North-Central Texas owners.

What is capital gains tax?

Capital gains tax is the tax on the profit you make when you sell a capital asset for more than your adjusted basis (your cost plus certain expenses). You owe tax when the gain is realized at sale; unrealized gains are not taxed according to the IRS Topic No. 409: Capital Gains and Losses.

How to compute the gain (simple):
Sale price − Adjusted basis (purchase price + fees/improvements) = Capital gain (or loss).

Short-term vs. long-term capital gains

• Short-term capital gains: assets held one year or less; taxed at ordinary income rates.
• Long-term capital gains: assets held more than one year; taxed at 0%, 15%, or 20%, depending on income and filing status. Holding for more than a year usually lowers the rate. You can review how these rates are defined in the IRS instructions for Schedule D.

2025 long-term capital gains tax rates

Filing status	0% Rate	15% Rate	20% Rate
Single	$0–$48,350	$48,351–$533,400	$533,401+
Married filing jointly	$0–$96,700	$96,701–$600,050	$600,051+
Head of household	$0–$64,750	$64,751–$566,700	$566,701+
Married filing separately	$0–$48,350	$48,351–$300,000	$300,001+

These amounts adjust for inflation each year. Confirm the latest numbers before you sell using the IRS tax brackets overview.

Note: Texas has no state income tax. Federal capital gains rules still apply to Texas owners.

Which assets are subject to capital gains tax?

• Stocks, bonds, mutual funds
• Business interests and equipment
• Real estate (primary homes can qualify for an exclusion—see below)
• Digital assets (cryptocurrency, NFTs)
• Collectibles (often taxed up to 28% when long-term)

Key exemptions and special rules

Home sale exclusion (Section 121).
Homeowners may exclude up to $250,000 of gain if single or $500,000 if married filing jointly when they meet the ownership and use tests. See IRS Topic No. 701: Sale of Your Home for detailed rules.

Inherited property (step-up in basis).
Heirs generally receive a basis stepped up to fair market value at death, which can reduce taxable gain later.

Real estate like-kind exchanges (Section 1031).
You can defer gain by exchanging one business/investment real property for another under the IRS guidelines for Like-Kind Exchanges.

Net Investment Income Tax (NIIT).
High-income taxpayers may owe an extra 3.8% on net investment income (including capital gains) above certain thresholds. Learn more on the IRS NIIT page.

Business-owner triggers (what creates capital gains)

• Sale of a company, division, or partnership/LLC interest
• Sale of business real estate or major equipment
• Allocation terms in the purchase agreement (e.g., goodwill vs. ordinary income recapture)
• Timing large stock or fund sales the same year you sell the business

Planning before you sign a letter of intent usually yields better outcomes.

How to reduce or avoid capital gains tax (legal strategies)

1) Hold assets more than one year.
Crossing the one-year mark can move you from ordinary rates to 0%, 15%, or 20%.

2) Offset gains with losses (tax-loss harvesting).
Realize losses to offset gains. If losses exceed gains, you can usually deduct up to $3,000 against ordinary income and carry the rest forward. Review the IRS wash sale rule explanation to avoid disqualification.

3) Use tax-advantaged accounts.
In IRAs and 401(k)s, trading does not trigger current capital gains taxes; distributions follow account rules (traditional vs. Roth).

4) Donate appreciated assets.
Donating stock or crypto held for more than a year can remove the capital gain and may qualify as a charitable deduction under IRS Publication 526 on Charitable Contributions.

5) Improve basis with legitimate costs.
Add eligible transaction costs and certain improvements to basis to shrink the taxable gain (e.g., selling expenses, capital improvements on property).

6) Time the sale for a lower-income year.
Large one-time sales can push you into the 20% bracket or trigger NIIT. Model timing across tax years with help from your advisor.

7) Consider installment sales (business and real estate).
Spreading payments may spread the gain across years, as outlined in IRS Publication 537 on Installment Sales.

8) For investment real estate, evaluate 1031 exchanges.
Defer the gain by swapping into replacement property following IRS Like-Kind Exchange rules.

Simple examples

A) Long-term stock gain (held 18 months).
You sell for a $120,000 gain. Your taxable income puts you in the 15% LTCG bracket. Estimated federal tax: $18,000 (before NIIT or phase-outs).

B) Short-term fund trade (held 6 months).
$50,000 gain taxed at your ordinary rate. If you’re in the 32% bracket, estimated tax: $16,000.

C) Home sale with exclusion.
Married couple sells their main home for a $420,000 gain and meets the tests. They can exclude $500,000, so no taxable gain.

D) Rental sale with depreciation recapture.
Part of the gain tied to prior depreciation may be taxed up to 25%; the rest follows 0/15/20 LTCG rates.

Reporting and compliance

• Brokers and exchanges report sales on Form 1099-B or 1099-DIV.
• You list details on Form 8949, then summarize on Schedule D with your return.
• Large gains can require quarterly estimated payments to avoid penalties.
  Review the IRS Form 8949 instructions for details.

Texas-specific notes for owners and investors

Texas does not tax personal income, but federal rules still drive your total bill. DFW owners often face capital gains on business sales, rental properties, and concentrated stock positions. Early modeling—before you list or sign—protects value.

FAQs

What is capital gains tax?
A tax on profit from selling an asset above your adjusted basis. You owe when the gain is realized at sale.

How do I avoid or reduce capital gains tax?
Hold more than a year, offset gains with losses, use retirement accounts, donate appreciated assets, consider 1031 for real estate, time sales, or use installment sales.

When do I owe capital gains tax?
In the tax year you sell the asset. Large gains may require estimated payments.

Which forms do I file?
Form 8949 and Schedule D, reconciled with 1099s from brokers and exchanges.

What about the extra 3.8% tax?
High-income taxpayers may owe the NIIT on top of capital gains.

Why work with North Texas Tax Advisors

Most firms look backward at filing time. We plan during the year. We help you decide when to sell, how to structure the deal, and what to do with losses, basis, and 1031 options. We also coordinate with your estate plan and retirement goals.