Before You Close: The Compelling Estate Planning Opportunity in the Next Family Home

Acquiring a primary residence, getaway, or family compound is often categorized as a lifestyle choice, distinct from wealth transfer and tax reduction strategies. Yet, for a client with a significant taxable estate, the period before closing represents a critical planning window: finalize the purchase in an individual capacity, and you may forfeit an elegant opportunity to optimize that asset for future generations.

Think of a $50 million client family that funded SLATs or other gifting trusts between 2018 and 2025 because the tax law felt uncertain. Many of those families moved assets they might not otherwise have given away, and some now have meaningful trust liquidity sitting outside the estate. The question is how to use that liquidity without effectively reversing the planning through distributions, loans, or other arrangements that pull value back toward the client.

A split purchase can be an elegant answer. Instead of the client buying the entire home, the client buys the right to use the home for life and an existing GST-exempt trust buys the future ownership interest. The seller still receives the full price at closing. The family still gets the residence. The difference is that the trust’s future ownership can compound outside the client’s taxable estate and, if the trust is GST-exempt, outside the GST tax system, while at the same time the client can use the home and pay operating costs without an estate tax downside.

From a wealth strategy perspective, the appeal is practical and not merely technical. The trust deploys liquidity into an asset the family actually wants, keeps prior planning intact, participates in future appreciation, and avoids much of the practical friction that can make residential real estate planning feel awkward. In a stable or rising real estate market, the trust’s economics can be compelling: it buys a discounted future interest today and eventually owns the entire property.

The structure is not for every home purchase. But for a client with a taxable estate, an already-funded trust, and a long-term plan to keep the residence or family compound, it is worth consideration before the purchase documents are finalized.

At a glance Best use case: a new primary residence, vacation home, or family compound purchased by a client whose trust already has liquid assets. Core benefit: future appreciation on the trust-owned remainder can move outside the client’s estate and remain in a GST-exempt vehicle. Liquidity planning angle: trust liquidity is deployed without unwinding prior trust planning. Practical advantage: no additional gift/use of exemption (takes advantage of prior gifting),no QPRT-style fixed-term survival cliff, and no post-term rent arrangement. Main tradeoff: the family must model income-tax basis, future sale plans, fiduciary issues, and execution risk.

How the split purchase works

The client and an existing irrevocable GST-exempt trust jointly purchase the residence from an unrelated seller in a single closing. The client buys a life estate – the right to use the home for life. The trust buys the remainder – the right to own the home outright when the client’s life estate ends.

The two interests are valued under the IRS actuarial tables using the applicable Section 7520 rate. Each party pays its own actuarial share of the purchase price from its own funds. The client pays for the life estate from personal assets. The trust pays for the remainder from trust assets that are already outside the client’s estate.

During the client’s life, the client occupies the home and typically pays the ordinary costs of ownership and use, such as property taxes, insurance, utilities, and routine maintenance. At death, the life estate expires and the trust owns the residence. If the transaction is properly structured as a bona fide purchase for full and adequate consideration, the intended result is that the residence is not included in the client’s taxable estate.

Why this can be attractive

1. It uses trust liquidity without pulling the planning backward. Many families made large gifts because of potential law changes, not because they wanted trust assets to sit idle. A split purchase gives existing trust capital a purpose while keeping that capital outside the taxable estate and inside the trust structure the family already put in place.
2. It moves future appreciation on a family asset into the trust. Assuming the purchasing trust is already fully GST-exempt, the trust uses its existing exempt assets to buy the remainder. Future appreciation on that remainder can then accrue for children, grandchildren, and later generations without being part of the client’s estate.
3. It avoids the QPRT survival cliff. A qualified personal residence trust requires the client to outlive a fixed term. If the client dies before the term ends, the residence comes back into the estate. A split purchase is built around the client’s actual lifetime rather than a selected term of years.
4. It is more practical for many families. There is no need to transfer a home the client already owns, wait out a QPRT term, or ask the client to pay rent to a trust after the term ends. The structure is designed at the moment of purchase, when title, funding, and documentation can be coordinated cleanly.
5. It can produce compelling trust economics. The trust buys a discounted future interest, not the whole house. If the residence is held for the long term and the property is stable or appreciating, the trust may receive an attractive economic result while owning an asset the family wanted in any event. This is not a guaranteed investment return, but it is a meaningful planning feature.

The numbers, illustrated

Assume a 50-year-old client is purchasing a $3,000,000 home. Using the May 2026 Section 7520 rate of 5.0% and the current IRS single-life actuarial table, the values are approximately:

• Life estate factor: 0.74308, so the client pays approximately $2,229,240.
• Remainder factor: 0.25692, so the trust pays approximately $770,760.

At the client’s death, the trust owns the entire home outright, regardless of what the home is worth at that point. If the home appreciates at 4% annually for 34 years, a $3 million residence grows to approximately $11.4 million. The trust paid about $771,000 for a remainder interest that ultimately becomes the whole residence, which implies an annualized economic return of roughly 8.2% on the trust’s outlay. At a 5% annual appreciation rate, the home reaches roughly $15.8 million, and the trust’s implied return is about 9.3%.

For a client whose estate would otherwise be taxable, the transfer-tax impact can be significant. In the 4% appreciation example, the trust ends up holding about $10.6 million more than it paid at inception. Applying a 40% federal transfer-tax rate to that shifted value suggests a potential benefit of roughly $4.2 million before considering state tax, income-tax basis, transaction costs, exemption availability, and the trust’s alternative investment return.

The trust’s actuarial share rises as the client gets older. At the same 5.0% Section 7520 rate, a 65-year-old client’s single-life remainder factor is approximately 0.43244, and a 70-year-old client’s factor is approximately 0.50586. For married clients who want the right of occupancy to last until the second spouse dies, the valuation uses joint or survivorship assumptions and should be modeled separately.

Brief comparison to a QPRT

A QPRT is a gift strategy. The client transfers a residence to a trust, retains the right to live there for a fixed term of years, and gives away the remainder interest. QPRTs can still be useful, especially for a residence the client already owns, but they come with practical drawbacks.

The QPRT is a new gift tax event and for valuable homes the exemption used can be very substantial and not viable for a client who has already used most of the exemption. The client must survive the selected term. After the term ends, the client must either move out or pay fair-market rent to the trust. That rent arrangement can be tax-efficient when followed carefully, but many families find it awkward or fail to administer it consistently. QPRTs also create GST-allocation timing issues that can make them less efficient for multigenerational planning.

The split purchase is different. It is structured as part of a new acquisition, uses a life estate rather than a fixed term, and can use an already GST-exempt trust from the outset. For a client who is buying the next residence and has trust liquidity available, that can make the structure more practical than a traditional QPRT.

Where it fits best

• New purchases. The strategy is cleanest before closing on a new primary residence, vacation home, or family compound. It does not work as neatly for a home the client already owns.
• Funded GST-exempt trusts. The purchasing trust should already have liquid assets and, ideally, a zero inclusion ratio for GST purposes. If new cash must be added to the trust to fund the purchase, that contribution needs separate gift and GST analysis.
• Long-term family ownership. The strategy is strongest when the family expects to keep the home or compound for many years. A near-term sale can reduce the benefit and make the basis tradeoff more important.
• Trustee and beneficiary alignment. The trustee must have authority to buy an illiquid remainder interest in residential real estate and should be comfortable that the investment is appropriate for the trust and its beneficiaries.
• Cash or simple financing. All-cash purchases are simpler. Debt, refinancing, lender requirements, and title issues can be managed only if they are addressed before closing.

Important caveats

The transfer-tax result depends on careful execution. Section 2702 must be navigated because the client and a related-party trust are acquiring split interests in the same property. Section 2036 must also be considered because the client will retain lifetime use of the home. The structure should be designed and reviewed by estate counsel before the purchase contract is finalized, not improvised at the closing table.

The basic execution points are straightforward but important: the seller should be unrelated, the client and trust should close simultaneously, each party should pay its actuarial share from separate funds, the trust should be funded before the transaction with traceable assets of its own, and the documents should reflect the life estate and remainder interests clearly. The trust’s governing instrument should also authorize the investment.

If the trust is a SLAT, counsel should review the spouse’s beneficial rights, actual occupancy, reciprocal-trust concerns, and any facts that could create an unintended retained benefit. The structure can still be attractive, but the family should not assume that every SLAT can simply buy a remainder interest without additional analysis.

Ongoing administration matters as well. Ordinary carrying costs usually belong with the life tenant, but capital improvements, major renovations, casualty proceeds, insurance recoveries, sale proceeds, refinancing, property-tax treatment, and homestead or local-law issues should be addressed in advance. If the client pays for improvements that materially enhance the trust’s remainder interest, additional gift-tax questions can arise.

The basis tradeoff

The main income-tax tradeoff is basis. Because the goal is to keep the residence outside the client’s gross estate, the trust generally should not expect a full date-of-death basis step-up for the residence. The trust’s basis will depend on what it paid, subsequent improvements, and the tax treatment of the life estate and remainder interests.

For a family that expects to hold the residence across generations, that may be an acceptable price for the transfer-tax savings. For a family that expects to sell soon after the client’s death, the built-in gain can offset a meaningful part of the benefit. This should be modeled before the structure is selected.

Planning takeaway

The split purchase is an underused strategy because it is easy to miss: it usually has to be considered before the family closes on the next residence. For the right client, that timing is exactly what makes it powerful. The home purchase becomes a way to deploy existing trust liquidity, preserve prior estate planning, and move future appreciation on a family-use asset into a multigenerational trust.

The next step is not to choose the structure in isolation. It is to model it against the alternatives: outright purchase, QPRT, trust purchase, sale to a grantor trust, or no planning at all. The modeling should include the actuarial split, expected hold period, property appreciation assumptions, basis consequences, state tax, trustee considerations, and the family’s intended use of the home. When the facts fit, a split purchase can be a practical way to turn a lifestyle acquisition into a meaningful wealth strategy.

Note: This discussion is intended for planning education and should be reviewed with the client’s estate-planning attorney, tax advisor, trustee, and real estate counsel before implementation.