Children’s trusts for lifetime planning after the recent federal changes: estate tax, income tax basis, and advanced structures

Executive summary
Families are again reshaping lifetime transfers to children. Congress preserved and enlarged transfer tax capacity by enacting the One Big Beautiful Bill Act in 2025. The basic exclusion amount remains very high for 2025 and is scheduled to be fifteen million per person in 2026 under that law. The top estate tax rate remains forty percent. Income tax basis planning remains central because most wealth for many clients lies in low basis assets and qualified accounts. This article surveys the new landscape and then moves from fundamentals to advanced techniques that practicing lawyers can implement today. It focuses on trusts created during the parents’ lifetimes for children and descendants, with a particular emphasis on estate tax efficiency and basis improvement after death. It also covers beneficiary deemed owner approaches under section 678 including BDITs and BDOTs and the coordination of these tools with powers of appointment, swap powers, community property, QSST and ESBT issues for S corporation stock, and retirement assets under the SECURE framework. Key statutory and regulatory sources are cited throughout. Congress.gov+1

Part one
What changed and what did not change

1. The exemption and rate
   Congress raised the basic exclusion amount again in 2025. The Congressional Research Service summary and IRS materials reflect that the basic exclusion amount is 13.99 million for 2025 and is scheduled to be fifteen million in 2026 under the 2025 law. The estate tax rate schedule continues to cap at forty percent under section 2001. For planning, the headline message is unchanged. Use lifetime exemptions thoughtfully and keep the focus on basis where families hold concentrated appreciated positions. Congress.gov+2IRS+2

2. The step up in basis remains
   Section 1014 continues to provide a basis adjustment to fair market value at death for property included in the decedent’s gross estate. The consistency rule of section 1014(f) and the reporting regime under section 6035 and Form 8971 continue to apply. Revenue Ruling 2023 2 reiterates a critical limit. Assets owned by a grantor trust that are not included in the grantor’s gross estate do not receive a basis adjustment merely because the trust is treated as owned by the grantor for income tax purposes. Inclusion drives basis, not grantor status. Legal Information Institute+2IRS+2

3. Anti clawback remains in place
   Treasury Decision 9884 and section 20.2010 1 confirm that completed gifts made while the higher basic exclusion amount was available are not penalized if the exclusion amount is lower at death. The 2019 framework stands. Practitioners should still evaluate the separate proposed anti abuse concepts that limit the special rule where transfers were never meaningfully completed or remain includible. IRS+2Federal Register+2

Part two
Designing lifetime children’s trusts in the current environment

A. Core goals and design choices
A lifetime trust for a child is usually drafted to achieve five goals. Reduce transfer taxes. Keep assets available for education, first home, or entrepreneurship. Protect from creditors and divorce. Preserve or improve the income tax basis. Provide trustee guidance that anticipates future tax and family changes. Each goal affects fundamental choices. Discretionary versus support standard distributions. Use of powers of appointment to give a future basis play. Grantor trust versus non grantor trust for income tax. Situs selection and directed trustee models. These choices should be coordinated with the parents’ own plan and beneficiary titling of retirement accounts after the 2024 final RMD regulations. Federal Register

B. Estate tax basics to anchor every draft
Remember what causes inclusion. Retained enjoyment or control under sections 2036 and 2038. Incidents of ownership in life insurance under section 2042. A general power of appointment under section 2041. The three year rule for certain transfers under section 2035. If a child or parent holds a general power over trust assets at death, the assets will be included in that estate and therefore generally receive a basis adjustment at that death. This simple point drives most of the basis optimization strategies discussed below. Wealth.com+3Legal Information Institute+3* TSCPA New+3

C. Basis rules that shape children’s trusts
Section 1014(e) blocks basis step up when appreciated property is gifted to a person who dies within one year and that property returns to the original donor or the donor’s spouse. Community property rules under section 1014(b)(6) can produce a full basis adjustment for both halves at the first death. Consistency and reporting apply when an estate tax return is filed. Drafting must respect these hard edged rules. U.S. Code+2The Tax Adviser+2

Part three
Grantor trust tools that improve basis outcomes

A. Swap powers under section 675(4)(C)
Most parent created grantor trusts include a power of substitution that allows the grantor to exchange personal assets for trust assets of equivalent value. Revenue Ruling 2008 22 and Revenue Ruling 2011 28 confirm that a properly drafted substitution power does not by itself cause estate inclusion and does not create incidents of ownership for a life insurance policy owned by an ILIT. Practically, the substitution power lets the parent swap low basis assets into the parent’s name shortly before death to obtain a basis adjustment while leaving the trust with cash or high basis assets. Trustees must still police equivalent value and fiduciary fairness when the power is exercised. IRS+1

B. Formula powers of appointment and the Delaware tax trap
Practitioners can add a testamentary general power of appointment that springs only to the extent that an older or tax favored power holder has available exclusion. This can be limited by formula to prevent any estate tax while still producing inclusion that yields a basis adjustment. The same concept can be achieved by deliberately triggering the Delaware tax trap under section 2041(a)(3) and section 2514(d) in the right jurisdiction. This remains a sophisticated move and must be drafted with attention to perpetuities law and creditor exposure. Legal Information Institute+1

C. Upstream basis planning
An upstream power of appointment trust places appreciated assets in the estate of an older family member who will not incur estate tax, often through a formula limited general power of appointment. The technique can erase large built in gains while preserving asset protection for the child who originally funded the trust. To avoid the one year rule and related risks, do not design a direct round trip transfer back to the original donor. Use independent trustees and valuation discipline. PBN Law+1

Part four
Using section 678 to place the income tax burden on the child while keeping assets outside that child’s estate

A. The beneficiary deemed owner framework
Section 678 taxes a person other than the grantor as the owner of a trust if that person has a present power to vest income or corpus in themself or if that person previously had such a power and retains certain control over income. This creates beneficiary deemed owner trusts that are disregarded for income tax as to that beneficiary. The result can be powerful. Family assets can be sold to or held in the trust without income tax friction as between the child and the trust. But the assets can remain outside the child’s estate if the design avoids section 2041 exposure. Buckley Fine, LLC

B. BDITs in practice
A beneficiary defective inheritor’s trust is created by someone other than the beneficiary. It is typically funded with a modest seed gift and gives the primary beneficiary a withdrawal right that springs upon contribution and then lapses within the five and five safety window. While the withdrawal power exists and after it lapses, section 678 can make the child the owner for income tax purposes. That status permits the child to sell personal assets to the BDIT for a note without recognizing gain, while the trust’s growth stays outside the child’s estate if the instrument is properly drafted to avoid retained powers and general powers. Drafting often includes a distribution committee, an independent trustee, and narrow or no testamentary power in the child. Journey

C. BDOTs in practice
A beneficiary deemed owner trust uses section 678(a)(1) without requiring a temporary right to withdraw the entire corpus. It can give the child a present power to direct or receive all trust income, or a demand power over specified income items, which is enough to make the child the income tax owner without creating an estate tax general power. BDOTs are flexible for families who want the child to bear the tax on trust investments while still protecting principal for future generations. * TSCPA New+1

D. Comparing BDITs and BDOTs
Both structures can place the ongoing income tax on the child rather than on a separate trust taxpayer. A BDIT often facilitates a sale by the child to a disregarded trust. A BDOT is often simpler to administer when the goal is to treat the beneficiary as the owner of income only. Either structure can be layered with powers of appointment to allow basis optimization at a future death without inviting current estate inclusion. The draft must avoid inadvertently creating a general power. cfsarasota.org

E. Basis consequences inside 678 trusts
Section 678 status is an income tax concept and does not itself cause a basis adjustment at any death. A basis adjustment follows estate inclusion under section 1014, often achieved with a narrow testamentary general power or a Delaware tax trap clause that springs when the math favors inclusion. Without estate inclusion there is no basis step up at the beneficiary’s death. Revenue Ruling 2023 2 underscores that point for grantor trusts. Tax News

Part five
Coordinating lifetime trusts for children with retirement accounts, corporate stock, and other special assets

A. Retirement accounts payable to children’s trusts
Final regulations issued in July 2024 under section 401(a)(9) clarify the ten year framework, the annual distribution requirement when the participant died on or after the required beginning date, and the identification of which trust beneficiaries count for see through status. Drafting see through conduit trusts for minors or for disabled beneficiaries still works, but accumulation trusts are easier to use because the final rules narrow which remainder interests are counted. Review every beneficiary designation and every trust’s conduit or accumulation language in light of these rules. Federal Register+2Nerd’s Eye View | Kitces.com+2

B. S corporation stock in a child’s trust
When a child will ultimately own S corporation shares inside a trust, choose between a qualified subchapter S trust and an electing small business trust. A QSST treats the income beneficiary as the owner under section 678 for the S shares and requires all trust accounting income to be distributed to that beneficiary. An ESBT taxes S income at the trust level. Both require careful drafting and punctual elections. Confirm that the trust terms meet the single income beneficiary and distribution limitations for QSST status and that the trustee understands the two month and sixteen day election deadline after receipt. The Tax Adviser+1

C. Life insurance inside children’s trusts
An irrevocable life insurance trust for a child as beneficiary should avoid incidents of ownership and section 2042 inclusion. The substitution power authorities cited above confirm that a properly drafted swap clause does not itself create an incident of ownership for a policy owned by the trust. Coordinate premium gifts with annual exclusion mechanics and with GST allocations when the trust is intended to be long lasting. IRS

Part six
Estate tax structures that still matter for children’s trusts

A. SLATs for parents while funding trusts for children
Spousal lifetime access trusts remain useful to move appreciating assets out of the parents’ estates while preserving indirect access through the donee spouse. A parallel trust for each spouse can be designed with sufficient differences to reduce reciprocal trust risk. The increased exclusion amounts make SLATs attractive for wealth shifts that later fund or supplement trusts for children. Coordinate SLAT drafting with the downstream children’s trusts so that powers of appointment and decanting provisions are consistent. Peak Trust Company

B. IDGT sales to a GST exempt dynasty trust
An intentionally defective grantor trust sale remains a workhorse for parents who wish to freeze their estates and push growth into a GST exempt vehicle for descendants. Use the swap power to curate basis late in life. Confirm anti clawback and anti abuse guardrails if the plan contemplates toggling powers or retaining strings that might cause inclusion. IRS+1

C. GRATs and QPRTs
Grantor retained annuity trusts and qualified personal residence trusts can still be used to load value into children’s trusts in a low volatility or high discount environment. These remain outside the core of this article but deserve a place in the menu when the family’s concentrated positions or residence holdings create the right facts. Cite section 2702 for design constraints and do not forget that a GRAT remainder will have the grantor’s basis unless later included in an estate.

Part seven
Making step up planning work inside children’s trusts

A. When to seek inclusion for basis
After the new law raised the basic exclusion amount again, more families can tolerate targeted inclusion for basis improvement. Three common examples follow. A formula testamentary general power over selected low basis assets inside a child’s trust held by a healthy parent with ample remaining exclusion. A Delaware tax trap exercise by an older relative who holds a limited power. A swap of low basis assets out of a grantor trust followed by assets moving into the parent’s name and then into a simple will that leverages the marital and charitable deductions if needed. The objective is predictable inclusion with no or minimal estate tax paired with a clean basis adjustment under section 1014. Actec Foundation

B. When to avoid inclusion
Avoid basis step down traps. Section 1014 can step down basis on depreciated assets. Avoid the one year gift and return pattern barred by section 1014(e). Avoid giving a true general power of appointment to a beneficiary who is a spendthrift or at creditor risk. If the parents live in a community property state, consider community property status for appreciated joint assets so that both halves receive a basis adjustment at the first death. Document these choices in the client memo so successors understand why the plan chose inclusion or exclusion at each stage. U.S. Code+1

C. Distributions in kind and beneficiary basis
When trustees distribute appreciated property in kind to a child, the child generally takes the trust’s basis unless the trust elects under section 643(e) to recognize gain at the trust level. Do not make one off elections without modeling both the trust and the beneficiary level tax results. Update the trust’s basis schedules and deliver basis notices with each in kind distribution. U.S. Code

Part eight
Checklists, drafting tips, and practice pointers

1. Drafting checklist for lifetime children’s trusts
   a. Decide whether the trust will be grantor to the parent, non grantor, or beneficiary deemed owner to the child under section 678. Build in a future toggle only if the tax and state law consequences are fully vetted. Buckley Fine, LLC
   b. Add a carefully cabined testamentary general power of appointment or a Delaware tax trap clause to create inclusion for basis when it helps and to the extent it helps. Consider independent trustee or trust protector control over any formula trigger. Legal Information Institute
   c. Include a section 675 substitution power, but require fiduciary oversight and equivalent value. Include valuation mechanics and procedures in the instrument. Cite the revenue rulings in your internal memo to the trustee. IRS
   d. If S corporation stock is possible, either add QSST compliant terms or allow ESBT status and describe the required elections in trustee instructions. The Tax Adviser
   e. Coordinate GST allocations and consider reverse QTIP elections for marital trusts that will pour into children’s trusts. Legal Information Institute
   f. Add specific language to comply with the final RMD regulations if the trust may be a retirement account beneficiary. State whether the trust is conduit or accumulation and who counts for see through purposes. Federal Register

2. Basis planning playbook inside the family
   a. Use upstream planning by granting a formula limited general power of appointment to an older relative with unused exclusion to obtain basis step up on selected assets. PBN Law
   b. Use the swap power to move low basis assets into the parent’s estate shortly before death, and move cash or high basis assets back to the trust. Document the appraisal process. IRS
   c. Recognize and avoid section 1014(e). Do not design a gift that returns within a year to the original donor or that donor’s spouse. U.S. Code
   d. In community property states, confirm title so that assets are community property when the basis math favors a full adjustment at the first death. The Tax Adviser

3. Workflows and diligence
   a. Basis schedules. Trustees should keep basis and holding period schedules and deliver updates to beneficiaries and accountants after each in kind distribution. Section 6035 and section 1014(f) consistency apply when an estate tax return is filed. LegalClarity
   b. Elections calendar. Track QSST and ESBT deadlines. Track GST allocations and any reverse QTIP filing on the estate return. Track section 643(e) elections for in kind distributions. Legal Information Institute+1
   c. Retirement account beneficiary audits. After the 2024 final rules, audit beneficiary forms and trust provisions for each client with significant retirement assets who uses a children’s trust as a beneficiary. Federal Register

Part nine
Spotlights on common structures used alongside children’s trusts

1. Section 2503(c) minors trusts and section 2503(e) medical and tuition payments
   For smaller annual funding, a minors trust that satisfies section 2503(c) can allow use of the annual exclusion without Crummey notices, with outright vesting or a further trust option at age twenty one. Direct tuition and medical payments under section 2503(e) remain unlimited and do not consume annual exclusion or lifetime exclusion. These can be layered with a child’s trust to reduce the cadence of Crummey notices and to handle near term expenses cleanly. Legal Information Institute+1

2. Charitable split interest trusts and private foundations
   For a child who will take over a family charity, a CLT can push investment income to charity during the child’s career years and then pour residual wealth into the child’s dynasty trust. A CRT can diversify concentrated low basis assets without immediate gain recognition, with remainder passing to heirs from other assets.

3. Decanting and directed trust regimes
   Modern statutes allow an independent trustee or trust protector to add a formula general power of appointment or a Delaware tax trap trigger when the tax math later favors inclusion for basis. If you use decanting, memorialize the tax analysis and verify any change in governing law that allows the intended perpetuities and creditor outcomes.

Part ten
Practice examples

Example A. Parent sells concentrated low basis stock to a BDIT
Facts. A parent wants to remove growth from the estate while retaining access through a child. The parent’s sibling creates a trust for the child with a seed gift. The child has a temporary withdrawal right that satisfies section 678 and then lapses within the five and five window. The child sells appreciated S corporation shares to the BDIT for a note. The trust makes QSST elections when required. Near the parent’s later infirmity, the parent exercises a substitution power in a separate SLAT to exchange low basis securities for cash, moving the stock into the parent’s estate for basis at death. Results. Growth is shifted out of the parent’s estate years earlier. The later swap harvests basis step up. The child bears income tax on trust income under section 678 during life. Journey+1

Example B. Basis optimization using a formula general power of appointment
Facts. A child’s non grantor discretionary trust holds a portfolio with wide basis disparity. The instrument authorizes an independent trustee to grant the surviving parent a testamentary general power of appointment limited by a formula equal to the parent’s remaining exclusion. The power applies first to the lowest basis assets. Results. At the parent’s death, selected trust assets are included in the parent’s estate to the extent of remaining exclusion and receive a basis adjustment. No estate tax is due. The remainder stays outside the estate. University of Miami School of Law Media

Example C. Retirement account payable to an accumulation trust for a minor
Facts. A participant dies after the required beginning date with a minor child as trust beneficiary. The trust is an accumulation see through trust. Results. The final regulations require annual distributions during the ten year period because the participant died after the required beginning date. Drafting that narrows whose interests count for see through status allows the accumulation trust to qualify while keeping other remainder interests intact. Federal Register

Part eleven
Risk management and ethics

1. Fiduciary duties and swap powers
   Trustees must confirm equivalent value in every substitution. Include appraisal procedures, indemnities, and the ability to hire valuation professionals. Revenue Ruling guidance does not eliminate fiduciary risk. Train fiduciaries to document the process. IRS

2. Avoid inadvertent general powers
   Monitor powers that allow a beneficiary to appoint to themself, their estate, or their creditors. A small drafting mistake can move the entire trust into a beneficiary’s estate. Use narrow limited powers and clear savings clauses. Use independent trustee consent for any significant power.

3. Basis reporting and penalties
   Executors and trustees must match beneficiaries’ basis to the estate tax value when the reporting rules apply. Confirm that the preparer and the investment custodian understand consistency reporting before closing the estate or trust administration. LegalClarity

Conclusion
Lifetime children’s trusts are entering another period of opportunity. The federal changes preserved very large exclusions and reconfirmed the centrality of basis at death. The tools described here let lawyers move wealth to children while reserving flexibility to harvest basis adjustments later. The common pattern is this. Use tax capacity early to remove growth. Keep swap powers and formula appointment clauses available. When the family’s facts change, decide deliberately whether inclusion now or later will save more tax. The technical rules remain exacting. With careful drafting and disciplined administration these trusts can deliver both estate tax efficiency and income tax basis improvement for children and future generations. Congress.gov+1

Selected primary sources and readings

1. Step up in basis and consistency. Sections 1014, 1014(f), and section 6035 with Form 8971. Revenue Ruling 2023 2. Legal Information Institute+2IRS+2

2. Estate inclusion triggers. Sections 2035, 2036, 2038, 2041, 2042. Legal Information Institute+3Wealth.com+3Legal Information Institute+3

3. Anti clawback. TD 9884 and section 20.2010 1. Federal Register

4. Substitution power. Section 675 and Rev. Rul. 2008 22 and 2011 28. Legal Information Institute+2IRS+2

5. Section 678 and beneficiary deemed owner trusts. Statute and leading practitioner outlines. Buckley Fine, LLC+1

6. Delaware tax trap. Section 2041(a)(3) and practitioner analyses. Legal Information Institute+1

7. Community property step up. Section 1014(b)(6) and IRS Publication 555. The Tax Adviser+1

8. One year rule. Section 1014(e). U.S. Code

9. RMD final regulations under section 401(a)(9). Federal Register and summaries. Federal Register

10. QSST and ESBT guidance. Section 1361 and practical guidance. Legal Information Institute+1

Appendix
Annual exclusion transfers for minors and direct payment planning
A minors trust that satisfies section 2503(c) allows annual exclusion gifts for children without reliance on withdrawal notices. Direct tuition and medical payments under section 2503(e) remain unlimited and do not use exclusion. These techniques coordinate well with lifetime children’s trusts that concentrate on asset growth, protection, and basis planning. Legal Information Institute+1

Disclaimer:
The information provided in this post is for educational and general informational purposes only and does not constitute legal, tax, financial, or other professional advice. Laws, regulations, and interpretations are subject to change frequently and may vary by jurisdiction. You should not rely solely on this information when making decisions affecting your personal circumstances. Please consult with a qualified attorney, tax advisor, or financial professional for advice specific to your situation. The transmission or receipt of this information does not create an attorney-client relationship or any other professional relationship. This post may be considered advertising under applicable state laws.