Most married couples want their assets to reach their children or other chosen beneficiaries once both spouses are gone. Whether the surviving spouse can change those choices is one of the most important decisions in the plan.
There are generally two approaches, and each one involves a tradeoff between flexibility and protection.
Under this approach, the surviving spouse receives full control of the assets after the first spouse's death. The surviving spouse can generally amend the trust, change beneficiaries, spend or gift assets, and otherwise manage the property as his or her own.
The advantages are real. Administration is simpler, and the surviving spouse keeps the freedom to adapt if family circumstances change. There can also be a meaningful tax benefit. Because the assets may receive a second adjustment in basis at the surviving spouse's death, future capital gains taxes for heirs can be reduced.
The tradeoff is control. The surviving spouse may change the beneficiaries, which means children from a first marriage or other intended heirs could ultimately be disinherited. The assets may also be exposed to claims arising from a future remarriage or other changes in circumstances.
Under this approach, some or all of the deceased spouse's share is placed into an irrevocable trust when the first spouse dies. The surviving spouse may continue to receive income and, in some cases, principal distributions for health, education, maintenance, and support, but cannot change the ultimate beneficiaries the first spouse designated.
This approach preserves the deceased spouse's wishes and protects children from a prior marriage. It reduces the risk that assets will be redirected through remarriage, undue influence, or a later change to the estate plan, and it may provide additional protection from creditors.
The cost is flexibility. The surviving spouse has less freedom to adjust the plan, and assets held in certain irrevocable trusts may not receive a second adjustment in basis at the surviving spouse's death. As a result, heirs may pay more capital gains tax if inherited assets are later sold.
| Factor | Approach 1 — Maximum flexibility | Approach 2 — Protect beneficiaries |
|---|---|---|
| Survivor's control of assets | Full control; can spend, gift, and re-plan | Income, plus principal for health, education, maintenance, support |
| Can change beneficiaries | Yes, survivor may redirect who inherits | No, first spouse's choices are locked in |
| Children from a prior marriage | Could be unintentionally disinherited | Protected as named beneficiaries |
| Remarriage / undue influence | Assets exposed to later changes | Shielded from later redirection |
| Creditor protection | Limited; assets treated as survivor's own | Often stronger inside the trust |
| Second step-up in basis | Likely; can lower heirs' capital gains | May be lost on the trust's share |
| Administration | Simpler to manage | More complex; ongoing trust administration |
When a person dies, many assets receive a new tax basis equal to their fair market value on the date of death. This is known as a step-up in basis, and it can erase the capital gains that built up during the owner's lifetime.
Consider a rental property purchased for $200,000. Suppose it is worth $800,000 when the first spouse dies and $1,200,000 when the surviving spouse later dies. If the property receives a basis adjustment at each death, the children may inherit it with a basis close to $1,200,000, which significantly reduces or even eliminates the capital gains tax they would owe if they sold it. If the first spouse's share is instead placed into certain irrevocable trusts designed to restrict beneficiary changes, that portion may not receive the second adjustment when the surviving spouse dies, and the heirs could owe more capital gains tax in the future.
Purchased
First spouse dies
Surviving spouse dies
Revocable trust, survivor keeps full control
Irrevocable trust, beneficiaries locked
There is no single correct answer. The right structure depends on your priorities. If flexibility for the surviving spouse matters most, a fully revocable trust may be the better fit. If your main goal is making sure your children or other chosen beneficiaries ultimately inherit, a trust that becomes irrevocable at the first spouse's death may be preferable. In many cases, a carefully drafted trust can balance both objectives, protecting beneficiaries while still preserving significant tax advantages.
Every family is different, and every estate plan should be too. At C&O Law Group, we talk through these options with each client and tailor the trust to match the family's goals, tax concerns, and long-term objectives. The best structure depends on your assets, your family relationships, and your wishes for future generations.
This article provides general information about estate planning and is not legal or tax advice. The right approach depends on your specific facts, family circumstances, and financial situation. For advice on your situation, consult a licensed attorney.
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