Understanding the Tax Layers Triggered by a Commercial Real Estate Sale

Selling a commercial property is often described as a liquidity event. From a tax perspective, it is better understood as a recognition event.

A sale can trigger multiple layers of tax, each governed by different rules and rates. The final outcome depends not just on the sale price, but on how the property was owned, financed, depreciated, and structured over time.

The tax result of a commercial property sale is shaped long before the sale actually occurs.

Understanding the components of the tax bill helps investors evaluate trade-offs, timing, and whether deferral strategies deserve consideration.

The Primary Taxes Triggered by a Commercial Property Sale

Taxes from a commercial real estate sale are not calculated as a single number. They are layered.

Most transactions involve some combination of federal capital gains tax, depreciation recapture, state income tax, and, for higher earners, additional surtaxes. Each applies to a different portion of the gain.

Capital Gains Tax

Capital gains tax applies to the appreciation of the property above its adjusted cost basis, excluding depreciation.

For properties held longer than one year, long-term capital gains rates generally apply at the federal level. These rates are lower than ordinary income tax rates, but they still represent a significant cost.

The gain is calculated using the adjusted basis, not the original purchase price.

Depreciation Recapture

Depreciation recapture is often the most misunderstood portion of the tax bill.

Over the holding period, owners typically deduct depreciation to offset rental income. When the property is sold, the IRS requires a portion of those deductions to be recaptured.

Depreciation recapture is taxed at a higher federal rate than capital gains. It applies regardless of whether depreciation was taken aggressively or simply as allowed.

For long-held properties, recapture can represent a large share of total taxes owed.

Example: Estimating the Tax Bill on a Commercial Property Sale (California)

The following simplified example illustrates how the different tax layers interact. Figures are rounded for clarity and assume 2026 federal and California tax treatment.

Assumptions (Illustrative Only)

• Sale price: $5,000,000
• Original purchase price: $3,000,000
• Total depreciation taken: $1,000,000
• Adjusted basis: $2,000,000
• Total gain: $3,000,000

Federal Depreciation Recapture

• Depreciation recapture amount: $1,000,000
• Federal recapture rate: 25%

Estimated federal depreciation recapture tax:
$1,000,000 × 25% = $250,000

Federal Capital Gains Tax

• Remaining gain: $2,000,000
• Federal long-term capital gains rate: 20%

Estimated federal capital gains tax:
$2,000,000 × 20% = $400,000

Net Investment Income Tax

• NIIT rate: 3.8%
• Applied to total gain: $3,000,000

Estimated NIIT:
$3,000,000 × 3.8% = $114,000

California State Income Tax

California does not provide preferential capital gains treatment. All gains, including depreciation recapture, are taxed as ordinary income. In addition, California imposes a 1% Mental Health Services Tax on taxable income over $1 million.

• First $1,000,000 of gain × 13.3% = $133,000
• Remaining $2,000,000 of gain × 14.3% = $286,000

Estimated California state income tax: $419,000

Estimated Total Taxes

• Federal depreciation recapture: $250,000
• Federal capital gains: $400,000
• Net Investment Income Tax: $114,000
• California state income tax: $419,000

Estimated total taxes: $1,183,000

In this simplified example, nearly one quarter of the gross sale price is lost to taxes. California alone accounts for more than one-third of the total tax burden.

Why Tax Bills Often Exceed Expectations

Many investors focus on capital gains rates and underestimate the cumulative effect of depreciation recapture and state taxation.

This gap is especially pronounced for California property owners and for assets held over long periods. Evaluating the sale as a single transaction rather than as the culmination of years of depreciation and appreciation often leads to surprise.

How 1031 Exchanges Change the Outcome

A 1031 exchange does not eliminate taxes. It defers them.

When structured correctly, a 1031 exchange can defer federal capital gains, depreciation recapture, and California state taxes by reinvesting proceeds into qualifying replacement property.

Deferral preserves capital that would otherwise be lost to taxes, but it introduces constraints around timing, liquidity, and long-term planning.

Tax deferral works best when it supports a broader investment strategy, not when it is used as a last-minute fix.

How to Think About the Decision Before You Sell

The relevant question is not simply how much tax will be owed. It is how that outcome fits within broader objectives.

Holding period, income needs, estate planning considerations, and tolerance for continued real estate exposure all matter. In some cases, paying the tax is appropriate. In others, deferral materially changes the long-term result.

The mistake is evaluating the tax bill only after the sale is already in motion.

Conclusion

Selling a commercial property can trigger multiple layers of tax, each with its own rules and rates. Capital gains, depreciation recapture, surtaxes, and state income taxes all contribute to the final outcome.

Understanding these components before a sale creates clarity around trade-offs and options. It also allows for decisions that are proactive rather than reactive.

A structured planning discussion can help clarify how the tax consequences of a sale align with long-term objectives before timing becomes a constraint.

General Disclosure