What Is the Duty of Impartiality?
Most California trusts have more than one type of beneficiary, and their financial interests often point in opposite directions. The duty of impartiality requires a trustee to treat multiple beneficiaries fairly, without favoring one over another absent a justification rooted in the trust’s own terms. It’s a core piece of trustee duties California doctrine, and it shows up constantly in bar exam fact patterns involving income and remainder beneficiaries.
Understanding impartiality means understanding a structural tension baked into most trusts: the people who benefit today and the people who benefit later want different things from the same portfolio.
The Income vs. Remainder Conflict
A typical trust says something like: “income to A for life, remainder to B.” That single sentence creates two beneficiaries with opposing financial incentives.
- Income beneficiary (A) wants high-yield, low-growth assets — bonds, dividend stocks, rental income — to maximize current distributions.
- Remainder beneficiary (B) wants growth and capital appreciation, since B receives whatever principal remains when the trust ends.
A trustee who invests 100% in growth stocks with no dividends favors B and starves A. A trustee who invests 100% in high-yield bonds favors A and stunts B’s eventual inheritance. Either extreme is a breach of fiduciary duty trustee liability under the impartiality rule.
Impartiality Beyond Investments: Allocation
Impartiality isn’t only about how the trustee invests — it’s also about how the trustee allocates receipts and expenses once money comes in. Interest, rents, and cash dividends should go to the income beneficiary; capital gains and stock dividends should go to the remainder beneficiary’s principal.
A trustee who misallocates — for example, treating a capital gain as income and distributing it to the income beneficiary — has effectively transferred value from the remainder beneficiary without authority. That’s an impartiality breach even if the underlying investments were prudent and diversified.
Modern Tools for Balancing Interests
California gives trustees flexible tools to manage the income/remainder tension without sacrificing either side:
- Power to adjust (Probate Code § 16336). The trustee can reallocate between income and principal when traditional categories produce an unfair result — for example, moving some capital gain to income if the traditional allocation leaves the income beneficiary with too little.
- Unitrust conversion. The trust distributes a fixed percentage of total trust value each year, sidestepping the traditional income/principal distinction entirely.
- Total return investing. The trustee invests for the best overall return and treats a calculated percentage of that return as “distributable,” regardless of its technical income/principal source.
These tools are available, not automatic — a trustee must affirmatively exercise the power to adjust and be prepared to justify the reallocation.
Worked Example: The Growth-Only Trust
Trust instrument: “Income to Priya for life, remainder to her son Arjun.” Trustee Wei invests 100% of the $1.5 million corpus in non-dividend-paying growth stocks. Over five years, the portfolio appreciates 40% — but Priya receives essentially no income distributions during that time.
This is a duty of impartiality breach: Wei’s all-growth strategy favors Arjun’s remainder interest at Priya’s expense, with no trust language authorizing that preference. Priya can seek to have the portfolio rebalanced, and Wei may need to invoke the power to adjust under § 16336 to generate income retroactively — or face surcharge for the shortfall Priya should have received.
| Beneficiary Type | Wants | Trustee Tool |
|---|---|---|
| Income beneficiary | Dividends, interest, rents now | Bond/dividend allocation, power to adjust |
| Remainder beneficiary | Growth, capital preservation later | Growth allocation, unitrust conversion |
| Both | Fair balance absent contrary trust terms | Total return investing |
When the Trust Instrument Overrides Impartiality
If the settlor explicitly favors one beneficiary — “all income to my spouse for life, remainder to my children” with no further guidance — the trustee follows that instruction, and impartiality is measured within that stated preference, not against it. Impartiality only requires balance where the instrument is silent or ambiguous; it doesn’t override an explicit settlor directive.
Common Mistakes to Avoid
Don’t assume one investment strategy fits every trust — beneficiary composition and purpose change the analysis. Don’t limit impartiality to the income/remainder conflict; it also covers unequal treatment among multiple current beneficiaries or discretionary distributees. And don’t forget that remainder beneficiaries have standing to challenge trustee decisions immediately — they don’t have to wait for the trust to terminate.
Frequently Asked Questions
Can a trustee ever favor one beneficiary over another?
Yes, but only if the trust instrument itself directs that preference. Absent explicit direction, the trustee must balance the interests of all beneficiaries fairly.
What is the power to adjust?
Under Probate Code § 16336, a trustee may reallocate between income and principal when the traditional allocation rules would otherwise produce an unfair result for one class of beneficiaries.
Is misallocating a capital gain to income a breach?
Yes. Even with prudent, well-diversified investments, incorrectly allocating a capital gain to the income beneficiary (instead of principal) breaches the duty of impartiality because it shifts value away from the remainder beneficiary.
Key Takeaways
- The duty of impartiality requires trustees to balance income and remainder beneficiaries’ conflicting interests.
- All-growth or all-income investment strategies typically breach impartiality absent trust authorization.
- Correct principal and income allocation is part of impartiality, not a separate concern.
- The power to adjust, unitrust conversion, and total return investing are the modern tools for balance.
- Remainder beneficiaries can challenge trustee decisions immediately — they need not wait for distribution.
This article is educational and is not legal advice. Consult a licensed California attorney about your situation.
Related guides
- prudent investor rule for California trustees
- principal and income allocation in California trusts
- trustee self-dealing in California
- trustee surcharge remedy in California
- trustee-duties