When a couple plans for the future, an important question is how to provide generously for the survivor while preserving an inheritance for the people who come next. A bypass trust, also called a credit shelter trust or family trust, can serve both purposes. It can hold property after the first spouse’s death, support the surviving spouse under the terms you choose, and keep the remaining property outside the survivor’s taxable estate when properly structured.

This is an arrangement to consider in the context of your family, your assets, and your tax situation. Spiro Verras helps couples understand how it compares with a marital trust, portability, and a simpler plan in which the survivor owns the property outright.

Key takeaways

  • A bypass trust typically receives property at the first spouse’s death and uses that spouse’s available estate-tax exclusion.
  • The surviving spouse can receive benefits under carefully designed distribution provisions.
  • Future growth can remain outside the surviving spouse’s estate.
  • Property generally does not receive another basis adjustment at the survivor’s death merely because that spouse was a beneficiary.
  • Older formula provisions deserve a fresh review as family circumstances and tax law change.

How it works | Funding and appreciation | Tax returns | Common questions

How a bypass trust works

The trust is often part of a couple’s revocable trust or wills. After the first death, the trustee or personal representative allocates the appropriate property to the bypass trust. The surviving spouse may receive income, principal, or both, according to the instructions. Children or other beneficiaries may also be included if that suits the plan.

The survivor’s powers are designed so that the trust property is not treated as the survivor’s own property for estate-tax purposes. A survivor serving as trustee might have distributions limited to an ascertainable standard, such as health, education, maintenance, and support. Broader decisions may be assigned to an independent trustee. The powers-of-appointment rules in Internal Revenue Code section 2041 are part of that design.

The eventual inheritance can continue in trusts for children or grandchildren. That makes it possible to coordinate long-term management, appropriate access, and protection for beneficiaries within one family plan.

The tax benefit in context

The bypass trust generally uses the deceased spouse’s available exclusion rather than claiming a marital deduction for those assets. If the trust is properly structured and administered, the property and later growth can avoid inclusion in the surviving spouse’s estate.

The federal basic estate and gift tax exclusion is $15 million per person in 2026. Prior taxable gifts can reduce what remains available. The larger exclusion makes it especially useful to compare the expected tax benefit with the trust’s income-tax treatment, administration, and family purposes.

Portability offers another way to preserve a deceased spouse’s unused federal exclusion, generally through a timely estate-tax return. It does not duplicate every result of a bypass trust. Growth in property the survivor owns remains part of the survivor’s estate, while a properly funded bypass trust can keep its growth outside that estate. The IRS portability guidance explains the election requirement.

Appreciated assets and the funding decision

A bypass trust funded at death is different from an irrevocable trust funded by a lifetime gift. Qualifying inherited assets generally receive a basis adjustment at the first death. Basis is the amount used to measure taxable gain when an asset is sold.

After that, growth inside the bypass trust ordinarily does not receive a second adjustment at the surviving spouse’s death if the property is outside that spouse’s estate. That is one reason the estate-tax and capital-gains calculations belong together. Some plans deliberately build in flexibility to respond to changing values and tax exposure, but the available options depend on the document and the family’s circumstances.

Hypothetical example: Securities enter a bypass trust with a value and adjusted basis of $2 million. They later grow to $3 million, with no intervening basis adjustments. If the trust is excluded from the surviving spouse’s estate, that death ordinarily does not erase the $1 million of built-in gain. The plan may still produce a substantial estate-tax benefit, but a later sale requires a separate income-tax calculation.

Cash can simplify the initial allocation. Appreciated securities, business interests, and real estate may also be appropriate. We examine growth potential, income needs, sale plans, valuation costs, and who should manage each asset. The funding formula itself matters because satisfying certain fixed-dollar obligations with appreciated property can recognize gain.

The inherited-property rules are in section 1014. Retirement accounts and other assets with special income-tax treatment require an additional review before beneficiary designations or funding decisions are settled.

Will the trust need its own tax return?

Typically, yes. Once funded after the first death, a bypass trust ordinarily has its own tax identification number and files Form 1041 when the filing requirements apply. Beneficiaries receive Schedule K-1 information for taxable income allocated to them.

Who pays the tax depends on the income and distributions. Some income may be taxed to the trust; other income may be carried out to beneficiaries. Capital gains do not automatically follow a cash distribution. The trustee and CPA should coordinate distribution decisions, the trust’s accounting rules, and tax reporting.

The first spouse’s estate may also need Form 706 for tax reporting, portability, or other elections. This is separate from the trust’s annual return. Funding the trust under the deceased spouse’s plan is also different from a new lifetime gift by the survivor, which can introduce additional gift-tax questions.

What protection can it offer?

A bypass trust can preserve the deceased spouse’s instructions and provide continuing management for the survivor and later beneficiaries. Appropriate spendthrift terms and discretionary provisions may also protect beneficial interests from certain creditor claims under Florida law.

The degree of protection follows the actual rights the trust gives each beneficiary. An unrestricted withdrawal right presents a different question from an independent trustee’s discretionary authority. Distributions already received by a beneficiary also require a different analysis from property still held in trust.

That is why trustee selection belongs in the planning conversation. We want a structure that works comfortably in daily life, with enough flexibility to support the survivor and enough clarity to carry out the family’s longer-term intentions.

Common questions about bypass trusts

Can the surviving spouse be trustee?

Often, with appropriately limited powers. An independent trustee or co-trustee can handle decisions that call for broader discretion. We consider the spouse’s abilities, the assets involved, and the relationships among the beneficiaries.

Does this mean the survivor loses access to the money?

The trust can provide meaningful support through income and principal distributions. The access rules are established when the plan is written. We discuss actual living expenses and future needs so that the provisions reflect the life you want the survivor to have.

How is a bypass trust different from a QTIP?

A QTIP marital trust generally uses the marital deduction and includes the remaining property in the survivor’s estate. A bypass trust generally uses the first spouse’s available exclusion and aims to avoid that later inclusion. A coordinated plan can use both, with funding choices made under carefully drafted provisions.

Should we keep an older A/B trust plan?

It deserves a review. An older formula may direct more property into a bypass trust than the couple would now choose, or may no longer fit the family’s tax exposure. Its management and beneficiary-protection features may still be valuable. We compare the whole arrangement before recommending changes.

Will it help if we own property in another state?

Possibly, but state estate taxes, trust taxation, and property rules need their own analysis. Federal portability does not settle every state-law issue. The plan should reflect your domicile, the location of your property, and any likely move.

Choosing the right balance

A good plan makes room for the survivor’s life and the family’s future. Spiro works with you and your tax advisers to compare the available approaches, select appropriate funding, and explain what the trustee will need to do after the first death.

Contact Verras Law to arrange an appointment in Palm Harbor, in Tampa or St. Petersburg by appointment, or by Zoom or teleconference.

Sources and further reading