Real Estate Tax Calc
Swap till you drop: the core strategy
The strategy is simple to describe. Own investment property. When you want to sell, exchange into a larger or better property instead of paying tax. Repeat for decades. Die while still holding property. Your heirs receive a stepped-up basis — the fair market value of the property on the date of your death — and all the deferred capital gain plus all accumulated depreciation recapture is permanently eliminated, never to be taxed.
The power comes from compounding on dollars that would otherwise have gone to the IRS. An investor who defers $500,000 of gain through a 1031 exchange and invests it for 20 more years at 6% ends up with roughly $1,600,000 from that $500,000. The heirs inherit the resulting property with a stepped-up basis and sell it tax-free.
Planning for later years
The 1031 strategy demands finding replacement property within 45 days and closing within 180 days — requiring active management as you age. Several tools ease the transition. A Delaware Statutory Trust (DST) is a passive fractional real estate investment that qualifies as like-kind property in a 1031 exchange. An older investor can exchange their direct-ownership property into a DST, retaining the deferral and the estate-planning benefit while handing active management to professionals.
Tenancy-in-common (TIC) interests serve a similar purpose for some investors. Both allow an exit from active management while maintaining 1031-eligible property — and the eventual stepped-up basis — for heirs.
Risks and considerations
The main risks: (1) Congress could change the step-up in basis rules (proposals have been introduced but not passed as of 2026). (2) Congress could limit or eliminate the 1031 exchange for real property. (3) State estate taxes may still apply. (4) If the investor sells without exchanging late in life, they will owe the full deferred tax at once. Coordinate the 1031 strategy with an estate attorney and a CPA who can model the full picture — property values, deferred gain, estate-tax exposure, and the heirs' own tax situation.
How the step-up in basis actually erases the tax
The engine of the whole strategy is IRC Section 1014. When you die owning appreciated property, your heirs take a basis equal to its fair market value on your date of death (or the alternate valuation date), regardless of what you originally paid or how much depreciation you claimed. All the deferred capital gain and all the accumulated depreciation recapture that would have been triggered by a lifetime sale simply vanish. The heir who sells the next day for fair market value has essentially no taxable gain.
A worked illustration: you bought for $200,000, exchanged your way up over decades, and die holding property worth $2,000,000 with an adjusted basis of $150,000 after depreciation. A lifetime sale would have exposed roughly $1,850,000 of gain plus recapture. Instead, your heirs' basis resets to $2,000,000. If they sell for $2,000,000, they owe nothing. That single provision is why 'swap till you drop' is not a figure of speech — the drop is the point at which the tax is forgiven.
Community property doubles the benefit for married couples
The step-up interacts powerfully with how a couple holds title. In community property states (such as California, Texas, Washington, and several others), when one spouse dies, both halves of community property generally receive a step-up to fair market value — not just the deceased spouse's half. The surviving spouse can then sell with little or no gain. In common-law (separate property) states, only the deceased spouse's half steps up, so the survivor keeps a carried-over basis in their own half.
Some couples in common-law states use a community property trust (available in a handful of states) to capture the double step-up. This is a meaningful planning point: the same property, held two different ways, can leave a surviving spouse with wildly different taxable gain. Coordinating title and state of residence with an estate attorney can be worth hundreds of thousands of dollars.
Delaware Statutory Trusts and the aging-investor transition
The 45-day identification and 180-day closing deadlines are demanding, and finding, financing, and managing ever-larger replacement properties gets harder with age. A Delaware Statutory Trust (DST) solves this: it is a passive, fractional interest in institutional-grade real estate that the IRS has ruled (Rev. Rul. 2004-86) qualifies as like-kind replacement property. An older investor can exchange out of a management-intensive building into one or more DSTs, keep the deferral fully intact, collect passive income, and still leave heirs the stepped-up basis.
DSTs are not free of tradeoffs — they are illiquid, you give up control, sponsors charge fees, and you cannot refinance or make decisions about the property. But for someone who wants to stop being a landlord without triggering a taxable sale, a DST (or a tenancy-in-common interest) is often the bridge that keeps 'swap till you drop' viable into the final chapter. Some investors also ladder DSTs with different hold periods so replacement capital comes due at staggered times.
Estate tax is a separate question from income tax
The step-up eliminates income tax on the appreciation, but a large real estate portfolio can still face the federal estate tax. The estate-tax exemption is historically high (in the millions per person, indexed annually), and married couples can combine their exemptions through portability, but the exemption amount is scheduled to change under sunsetting legislation, and several states impose their own estate or inheritance taxes at much lower thresholds. A portfolio worth tens of millions may owe estate tax even though the income tax on the gain has been erased.
This is where the 1031 strategy meets classic estate planning: irrevocable trusts, family limited partnerships, gifting strategies, and life insurance to provide liquidity for any estate tax due. The two systems operate independently — you can win completely on income tax through the step-up while still needing a plan for estate tax. Model both, because a family that assumes 'the step-up handles everything' can be surprised by an estate-tax bill with no cash to pay it.
What can go wrong, and the risks to weigh
Several risks deserve honest attention. First, concentration and liquidity: deferring tax by never selling means your wealth stays locked in real estate, undiversified and hard to access. Second, the heirs' situation — if beneficiaries want cash rather than property, or disagree on managing it, the plan needs a disposition strategy. Third, legislative risk: proposals to curtail the step-up in basis or limit Section 1031 to smaller transactions have been floated repeatedly; neither has passed as of 2026, but the strategy depends on rules Congress could change.
There is also the blunt tradeoff at the center of it all: the deferral only becomes permanent if you actually hold until death. An investor who spends decades deferring and then sells late in life — for a nursing-home cost, a divorce, or simple regret — owes the entire accumulated tax at once, often at the worst possible time. The strategy rewards discipline and a long horizon; it punishes a forced late sale. Build in flexibility (DSTs, partial exchanges, and a liquidity reserve) so a life event does not detonate the whole deferred bill.
Coordinating the plan with your heirs
The strategy succeeds only if the handoff at death is as well planned as the exchanges during life. Hold the property in a way that avoids probate where possible — a revocable living trust, or an LLC whose interests pass through the trust — so heirs receive both the asset and the stepped-up basis cleanly. Make sure your estate documents identify who inherits which property and grant a trustee the authority to manage or sell real estate, because an heir who wants cash needs a mechanism to get it without a family dispute.
Just as important, tell your heirs what they are inheriting and why the basis matters. An heir who does not understand the step-up may sell quickly and correctly owe almost nothing — but one who holds and later sells needs to know their basis is the date-of-death value, not what you paid. A short memo listing each property, its date-of-death appraisal, and the reason it was never sold can save your beneficiaries a great deal of tax confusion and preserve the full benefit of a lifetime of deferral.
Frequently asked questions
What is the swap-till-you-drop 1031 strategy?
The investor continually exchanges into replacement properties to defer all capital-gains tax and depreciation recapture. At death, the heirs receive a stepped-up basis and all deferred tax is permanently eliminated.
Does the step-up in basis eliminate depreciation recapture too?
Yes. The date-of-death basis step-up under Section 1014 resets basis to fair market value, wiping out both the deferred capital gain and the accumulated depreciation recapture. Neither is taxed to the heirs on the appreciation you accumulated during life.
Do married couples get a bigger step-up?
In community property states, both halves of community property generally step up when the first spouse dies, letting the survivor sell with little gain. In common-law states only the deceased spouse's half steps up. Some states offer community property trusts to capture the double step-up.
Does the step-up also avoid estate tax?
No — those are separate systems. The step-up eliminates income tax on the appreciation, but a large estate can still owe federal or state estate tax. Coordinate the 1031 strategy with estate planning for exemptions, portability, and liquidity to pay any estate tax due.
What if I have to sell late in life instead of holding until death?
Then the entire deferred capital gain and recapture become taxable at once. That is the main risk of the strategy — it only becomes permanent if you hold until death. DSTs, partial exchanges, and a cash reserve can add flexibility so a late-life event does not force a fully taxable sale.
What is a DST and how does it help estate planning?
A Delaware Statutory Trust is a passive real-estate investment vehicle that qualifies as like-kind property in a 1031 exchange. It allows older investors to exchange active rental property into a passive investment while preserving the stepped-up basis benefit at death.
What happens to the deferred 1031 gain when I die?
It is eliminated. Your heirs receive the property at a basis equal to fair market value on the date of death, with no capital gains tax or depreciation recapture owed on the amount you accumulated during your lifetime.
Sources
Educational information and estimates only. Not tax advice. Tax rules change and vary by situation; consult a qualified tax professional before acting.