By Toni Sutherland ·
For many business owners, selling an investment property or a building used in the business feels like a straightforward transaction: agree on a price, sign the paperwork, close, and move on. The tax bill that follows can tell a very different story. Layered on top of each other, several types of tax can apply to the same sale at the same time, and business owners are often surprised by how much of their proceeds those layers can absorb.
The issue is rarely that any single tax is unfair. The issue is timing. By the time a seller sits down with a tax professional, a purchase agreement is often already signed, which leaves little room to use planning tools that generally need to be arranged before closing. Understanding the layers of cost in advance, and knowing that proactive alternatives exist, is what gives a business owner real options.
Key takeaways
- An unplanned real estate sale can trigger multiple tax layers at once: federal capital gains tax, depreciation recapture, a net investment income surtax, and potentially state tax.
- These layers stack, so the combined effect on sale proceeds is often larger than owners expect when they only think about “capital gains tax.”
- The biggest planning mistake is waiting until after a sale agreement is signed to talk with a tax or financial professional.
- Strategies like 1031 exchanges and Deferred Sales Trusts exist specifically to give sellers a way to defer some of this tax exposure, but they generally require planning before closing.
- There is no way to eliminate every tax consideration on a real estate sale, and every situation is different, which is why personalized planning with qualified professionals matters.
The layers of hidden tax cost in an unplanned sale
When a business owner sells appreciated real estate, more than one tax provision can apply to the same transaction.
Federal capital gains tax
If a property has appreciated in value since it was purchased, the gain is generally subject to federal capital gains tax. The rate that applies can depend on how long the property was held and the seller's overall income for the year, among other factors. Because this is fact-specific, sellers should not assume a particular rate applies to their situation without confirming it with a tax professional.
Depreciation recapture
If the property was used in a business or held as a rental, the owner has likely claimed depreciation deductions over the years. When the property sells, the IRS generally requires a portion of that previously deducted depreciation to be “recaptured” and taxed, often at a different rate than ordinary capital gains. This is one of the most commonly overlooked pieces of the calculation, and it can be a meaningful amount for a property that has been depreciated over many years.
The net investment income tax (NIIT)
Higher-income taxpayers may also owe an additional surtax on investment income, commonly referred to as the Net Investment Income Tax, on top of federal capital gains tax and depreciation recapture. Whether this applies, and how much it adds to the total bill, depends on the seller's income level and filing status in the year of sale.
State tax
Depending on where the seller lives and where the property is located, state tax may apply as well, on top of everything owed at the federal level. State tax treatment of capital gains and depreciation recapture varies, so this layer needs to be evaluated based on the seller's specific state.
Taken together, these layers can meaningfully reduce the net proceeds a business owner actually keeps from a sale, especially for a property that has appreciated significantly and been depreciated for many years.
Why lack of a pre-sale strategy costs business owners money
The most common reason business owners leave money on the table is timing. Many owners do not consult a tax or financial professional until after they have already signed a purchase and sale agreement, at which point several planning options may no longer be available or may be harder to implement. Others assume that because they have sold property before, or because their accountant will “handle it at tax time,” no advance planning is needed. Tax preparation after the fact is different from proactive planning before a sale, and by the time a return is filed, most options to change the outcome are gone.
Another common pattern is treating the sale purely as a real estate transaction, negotiating price and terms, without ever framing it as also being a tax and wealth planning decision. A business owner who brings in a tax professional and a financial advisor before signing has more tools available than one who brings them in afterward.
Proactive alternatives: 1031 exchanges and Deferred Sales Trusts
Business owners who plan ahead of a sale generally have more than one path available to address this stacked tax exposure. Two commonly used strategies are:
- 1031 exchanges, which allow certain real estate owners to defer capital gains tax by reinvesting proceeds into a like-kind replacement property under IRS rules, subject to strict timing and structural requirements.
- Deferred Sales Trusts, a strategy some sellers use as an alternative or complement to a 1031 exchange, particularly when a seller wants more flexibility than reinvesting directly into another property. A related passive structure many exchange investors also consider is a Delaware Statutory Trust (DST).
Both strategies involve specific rules, timelines, and structuring requirements that go well beyond the scope of this article. We cover the mechanics of 1031 exchanges and DSTs in more depth elsewhere on our site. The point here is simpler: these are proactive tools, and they generally need to be considered and arranged before a sale agreement is finalized, not after.
Common mistakes to avoid
- Waiting until after signing a purchase agreement to ask about tax planning options.
- Assuming “capital gains tax” is the only tax that applies to the sale.
- Overlooking depreciation recapture on property that has been owned and depreciated for many years.
- Not checking whether the net investment income tax or state tax will apply.
- Treating the sale purely as a real estate negotiation rather than also a wealth planning decision.
When to talk with us
Every seller’s situation is different, and the right approach depends on the specific property, how long it has been held, the seller’s income and state of residence, and broader financial goals. If you own appreciated real estate and are considering a sale, the earlier you loop in a tax professional and a financial advisor, ideally before you sign a purchase agreement, the more options you are likely to have. Alta Investment Group works with business owners nationally on real estate tax deferral strategies, including 1031 exchanges and Deferred Sales Trusts, as part of a broader financial plan. If you would like to talk through your situation, you can schedule a call with us for an introductory consultation.
Sources
For current, authoritative guidance on capital gains tax, depreciation recapture, and the net investment income tax, see IRS.gov, and consult a qualified tax professional regarding your individual circumstances.