Learn
A little clarity for your next decision.
Loading your learning library…
Investor WorkspaceWelcome, there!Log Out
Investor WorkspaceA little clarity for your next decision.
By Jerry Baker
Comparing a 1031 exchange with paying tax starts with the gain's amount and tax character, not a single capital-gains percentage. A qualifying exchange may defer eligible gain, but a useful comparison also accounts for state taxes, basis carried forward, current cash needs, and a future exit.
A property sale can produce several tax items. Some gain may receive long-term capital-gain treatment. Some may fall into the unrecaptured Section 1250 category. Other amounts may be ordinary income under recapture or other rules. [1]
The 3.8% net investment income tax, or NIIT, may add another layer. State taxes may apply too. Filing status, other income, losses, and the property's history can change the result.
That is why I would ask for a reviewed tax estimate before deciding how valuable deferral is. “The tax is probably 20%” is a starting assumption to test, not a reliable result.
The examples here explain the process. They are not estimates for a particular investor. Each states its assumptions so you can see what would need to change for your own transaction.
Begin with the amount realized from the sale and subtract adjusted basis. Selling costs and other adjustments require their proper treatment. The gain calculation is separate from the cash left after debt is paid. [1]
Adjusted basis may reflect original cost, capital improvements, depreciation, earlier exchanges, and other events. A recent appraisal or current mortgage statement does not establish that figure.
Assume a $2.5 million sale, $125,000 of allowable selling costs, an $875,000 debt payoff, and $975,000 adjusted basis. With no other adjustments, amount realized is $2.375 million and realized gain is $1.4 million.
Cash equity before income tax is $1.5 million: $2.375 million less the $875,000 debt. Gain and equity differ by $100,000 in this example. Neither amount by itself tells you the tax due.
Bring records that support basis and deductions. If the property came through an earlier exchange, include that exchange's basis calculation. A missing schedule can have a much larger effect than a small change in the assumed tax rate.
Property used in a trade or business can involve Section 1231 rules and netting, rather than a simple capital-asset calculation. Prior nonrecaptured Section 1231 losses may also affect how current net gain is treated. The CPA should review the broader return. [1]
For depreciable real estate, unrecaptured Section 1250 gain may be taxed at a maximum federal rate of 25%. That is a ceiling for a category, not a statement that every dollar of depreciation is taxed at 25%.
Ordinary depreciation recapture is different. Depending on the asset and its deduction history, ordinary-income rules can apply. Cost-segregated assets and other components should not be silently grouped with the building.
These distinctions matter for a taxable sale and for an exchange. Form 8824 specifically directs taxpayers to special recapture provisions. A basic boot calculation does not override them. [2]
Most individual net long-term capital gain falls under the 0%, 15%, or 20% federal rate structure. Special categories have different limits. The applicable bands depend on taxable income and filing status, not merely the size of the property gain. [3]
For taxable years beginning in 2026, Revenue Procedure 2025-32 gives the following thresholds. These are the top taxable-income amounts for the ordinary 0% and 15% capital-gain bands. They are not separate tax-free gain allowances. [4]
| Individual filing status | Top of 0% band | Top of 15% band |
|---|---|---|
| Married filing jointly or surviving spouse | $98,900 | $613,700 |
| Married filing separately | $49,450 | $306,850 |
| Head of household | $66,200 | $579,600 |
| Single | $49,450 | $545,500 |
Ordinary taxable income generally uses the lower space before preferential gain is layered above it. A sale can span more than one capital-gain band. It is therefore unsafe to apply the rate that applied to your income before the sale to the entire gain.
The table is for 2026. It should not be used unchanged for another year, an estate, or a trust. Use the relevant year's rules and the correct taxpayer type.
For individuals, NIIT is generally 3.8% of the smaller of net investment income or modified adjusted gross income above the applicable threshold. It is not an automatic 3.8% tax on every sale dollar. [5]
The thresholds are $250,000 for joint filers, $125,000 for married filing separately, and $200,000 for single or head-of-household filers. The qualifying surviving-spouse threshold is $250,000. These thresholds are not indexed for inflation. [6]
Investment real estate gain can be included in net investment income. Nonpassive business facts and other rules may affect the calculation. The gain's size alone does not determine every part of the test.
For example, assume a joint filer has $180,000 of net investment income and $320,000 of modified adjusted gross income. The excess over the $250,000 threshold is $70,000. On those assumptions, NIIT is 3.8% of $70,000, or $2,660.
A forecast that simply adds 3.8% to all gain would overstate NIIT in that example. The correct calculation uses both the income measure and the threshold excess.
Return to the $1.4 million gain. Assume the CPA determines that $400,000 is unrecaptured Section 1250 gain and $1 million is other net long-term gain eligible for the usual capital-gain rates.
Assume other taxable income is high enough that all the $1 million falls in the 20% band and the $400,000 is taxed at its 25% ceiling. Also assume the full $1.4 million is subject to NIIT. There are no offsetting losses, ordinary recapture, or other adjustments.
| Illustrative federal layer | Calculation | Amount |
|---|---|---|
| Other long-term gain | $1,000,000 × 20% | $200,000 |
| Unrecaptured Section 1250 gain | $400,000 × 25% | $100,000 |
| NIIT | $1,400,000 × 3.8% | $53,200 |
| Total illustrated federal tax | Sum of the three layers | $353,200 |
The $1.5 million cash equity would fall to $1,146,800 after this illustrated federal tax, before any state tax or other amounts. This is not a universal tax result for a $1.4 million property gain.
The assumptions do important work. A different income level, gain category, loss carryforward, or NIIT result changes the answer. Do not carry the total into your own plan without checking those facts.
Federal treatment does not supply every state's tax result. Review the owner's residence, the property's location, state-source rules, and any relevant credits. An out-of-state property purchase is not, by itself, proof that a state tax obligation disappears.
California, for example, does not provide a lower personal income-tax rate for capital gains. Its Franchise Tax Board states that capital gains are taxed as ordinary income. That differs from the federal preferential-rate structure. [7]
Do not simply apply California's rule to another state. Also do not assume a state without a broad individual income tax removes every tax associated with selling real estate. Transaction taxes and other obligations are separate questions.
To show the arithmetic only, suppose an additional state tax in the worked example equals an effective 6% of the $1.4 million gain. That hypothetical amount is $84,000. It is not a quoted rate for any named state.
The illustrated federal and state total would be $437,200, leaving $1,062,800 of the $1.5 million equity. Actual state rates, deductions, credits, and interactions must be calculated rather than replaced with this assumed percentage.
Assume the owner instead completes a valid exchange into a $2.4 million replacement using the $1.5 million exchange equity and $900,000 of properly accounted-for new debt. Assume all relevant costs are already reflected and no special recapture rule requires current recognition.
The basic exchange calculation can defer the $1.4 million gain. The owner retains more capital for the real estate purchase because the illustrated sale tax is not currently paid under those assumptions. [8]
Replacement basis is $1 million: $2.4 million less the $1.4 million deferred gain. The exchange has not created a $2.4 million fresh tax basis while also erasing the earlier gain.
Any claim about deferring a particular federal or state tax layer must match the actual recognition and conformity rules. A completed exchange is not a blanket exemption from taxes on other income or from every special recapture provision.
If the owner receives cash or other non-like-kind property, or has net debt relief, some gain may be recognized. In a simple otherwise valid exchange, basic recognition is generally limited by both realized gain and boot. [2]
But do not calculate the tax on a partial exchange by selecting whichever gain category has the lowest rate. Character and ordering rules determine what is recognized. The CPA should run the actual forms and applicable provisions.
Added outside cash can address certain debt relief. Extra borrowing does not automatically offset cash received. That asymmetry can change the result even when the replacement costs more than the old property. [9]
A partial exchange may still be useful when you need a reserve or want less debt. Compare the available cash and current tax together. Reinvesting every cash dollar does not guarantee that no current tax will be due.
Real estate transactions can include assets with different treatment. Equipment, other personal property, and certain rights may not qualify for real-property exchange treatment. Their values should not disappear into one combined property number.
Special recapture can also apply to assets that do qualify as real property. For instance, Section 1254 rules may require ordinary income in an exchange of certain resource property for nonresource real estate, even without cash received. [10]
The right question is not only “Did I take boot?” Ask which prior deductions are attached to the property, what kind of replacement is received, and whether any separate rule requires recognition.
If your tax history includes accelerated deductions or natural-resource interests, give those schedules to the CPA at the start. The full-deferral illustration above expressly assumes those complications do not change its result.
Suppose the $2.4 million replacement later sells for $2.8 million. Assume selling costs are $140,000 and adjusted basis has fallen from $1 million to $900,000 after later depreciation. These are hypothetical future facts.
Amount realized would be $2.66 million. Subtracting $900,000 basis gives $1.76 million of gain. That figure includes the effect of earlier deferred gain, later value change, and later basis reduction.
If the remaining loan were $800,000, cash before income tax would be $1.86 million. Again, debt affects cash while basis affects gain. A future tax estimate would need the law and gain categories applicable at that time.
No future tax rate is assumed here. A comparison that treats the later tax as zero without explaining why would make the exchange look better than the stated facts support.
Deferral can have value because money not paid in tax today can remain invested. The result depends on returns, costs, risk, and when tax is eventually recognized. There is no universal multiplier for the benefit.
For a purely mathematical example, $200,000 growing at an assumed 4% annually for five years becomes about $243,331 before taxes and costs. The increase is about $43,331. Neither the return nor that outcome is guaranteed.
The $200,000 was not free profit on day one. It was money available because a tax payment was postponed. A fair model should account for the tax liability under its stated exit assumptions as well as any gain earned on the retained capital.
Run more than one scenario. Lower returns, higher fees, or an earlier taxable exit can change the benefit. Do not compare a best-case exchange with a worst-case taxable-sale alternative.
A property transaction does not happen on an empty tax return. Other gains, losses, income, and deductions can affect the result. A large sale may also change the rate applied to other items.
Capital losses have netting and deduction rules. Passive losses have separate rules. Do not assume every suspended or carried-forward loss can immediately offset every dollar of real estate gain. [1] [3]
Ask the CPA to compare the complete return with and without the transaction. That difference is often more useful than multiplying the gain by a blended percentage.
Also discuss estimated payments and withholding. A recognized gain may create a payment obligation before the annual return is filed. An extension to file generally does not extend the time to pay. [11]
Include the expected sale price, draft closing statement, debt payoff, basis schedules, and asset breakdown. Add your filing status, expected other income, state residence facts, and relevant loss carryforwards.
For the exchange case, provide replacement values, proposed financing, outside cash, and any cash you want to retain. Ask the QI to confirm the procedural requirements and the CPA to calculate the tax result.
Request at least three outputs: a taxable sale, the planned exchange, and a reasonable fallback. The fallback might be partial deferral if one replacement cannot close or if you decide to keep more cash.
Mark every assumed rate and uncertain input. A good comparison should tell you which changes would materially affect the decision. The aim is a useful plan, not a large savings number that depends on hidden assumptions.
Assume a single filer in 2026 has $100,000 of ordinary taxable income before a $500,000 net long-term gain. For this limited example, the gain has no unrecaptured Section 1250 portion or other special category, and no losses or further adjustments apply.
The ordinary taxable income already exceeds the $49,450 top of the 0% band. The space remaining in the 15% band is $445,500: $545,500 less $100,000. That portion of the gain produces $66,825 of federal capital-gain tax.
The remaining $54,500 of gain falls above the $545,500 threshold. At 20%, that portion produces $10,900. The illustrated tax on the gain is therefore $77,725, before NIIT, state tax, and other possible effects.
Applying 15% to the full $500,000 would produce $75,000 and understate this limited calculation by $2,725. Applying 20% to the full amount would produce $100,000 and overstate it by $22,275. The rate boundary matters even though the gain has one tax character.
This is why a calculator should ask about other taxable income and filing status. A sale does not receive a fresh set of rate bands separate from the rest of the return. The output should explain what income measure it expects you to enter.
The capital-gain rate table and the NIIT threshold use different income measures. Taxable income and modified adjusted gross income are not interchangeable. A deduction can affect one calculation differently from another.
For another limited example, assume a single filer has $500,000 of net investment income and $620,000 of NIIT modified adjusted gross income. The threshold excess is $420,000. NIIT would be 3.8% of that smaller amount, or $15,960.
That calculation does not tell us the person's taxable income or complete regular income tax. Nor should we assume it matches the previous rate-band example without reconciling the deductions and other facts. Each worksheet needs the input its rules actually use.
When requesting an estimate, ask the preparer to label these amounts clearly. A number called only “income” can hide an important difference. Clear labels also make it easier to update the forecast if wages, business income, or investment gains change before year-end.
No. Gain categories, taxable income, filing status, and other rules matter. Ordinary recapture, unrecaptured Section 1250 gain, NIIT, and state tax may produce different layers. A single 20% assumption can be misleading. [1]
It reduces cash left from the sale, but it is not a basis deduction in the ordinary gain calculation. Gain generally compares amount realized with adjusted basis. Keep debt, equity, and gain on separate lines. [1]
No. The 25% figure is a maximum federal rate for that gain category. The actual computation depends on taxable income and the relevant rules. It is not the same as ordinary depreciation recapture. [3]
No. For individuals, it generally applies to the smaller of net investment income or modified adjusted gross income above the filing-status threshold. Eligibility, exclusions, and other facts must also be reviewed. [5]
Not when that would ignore deferred gain. In a basic exchange, replacement basis reflects the gain carried forward. Other adjustments may apply, so preserve the complete basis calculation for later years. [2]
Potentially. Special recapture provisions and other facts can require recognition beyond a simple boot calculation. Taxes on other income are separate. The CPA should check the asset and deduction history. [2]
Use the correct tax year. This guide's threshold table is for 2026 under Revenue Procedure 2025-32. It also applies only to the listed individual filing statuses, not every entity or trust. [4]
Use the same sale facts, a reviewed current tax estimate, and realistic replacement assumptions. Compare cash available, risk, costs, basis, and a future exit. Deferral is valuable only in the context of the plan it supports.
Educational information, not an offer or a personal tax, legal, or investment recommendation. Examples are hypothetical and omit stated adjustments. Tax treatment depends on your facts and current law. Review your transaction with your CPA, attorney, and qualified intermediary. Real estate investments can lose value and may be illiquid.
Enter your approved email to explore investments, save your shortlist, and keep learning.