The trustee controls a trust bank account. As the holder of legal title to the trust’s assets, the trustee opens the account, signs the checks, authorizes transfers, and decides how the money is invested or distributed. That authority is real, but it is not personal ownership. The trust document sets the rules, fiduciary duties bind the trustee’s choices, and beneficiaries have rights that function as a check on how the money is handled.
What the Trustee Can Do With the Account
The trustee’s name goes on the account. In practical terms, that means the trustee can open bank accounts in the trust’s name, deposit funds, write checks for trust expenses, move money between accounts, and make distributions to beneficiaries. The trustee also handles investment decisions for cash held in trust, pays bills the trust owes (property taxes on trust-owned real estate, for example), and allocates income or principal according to the trust document.
Every dollar in and out is the trustee’s responsibility. The critical distinction is that the trustee acts in a representative capacity. The account exists for the benefit of the trust and its beneficiaries, not for the trustee’s personal use. A trustee who treats the account like a personal checking account is committing a breach of trust, and courts take that seriously.
The Limits on That Control
Trustee authority is bounded by fiduciary duties, which are among the strictest obligations the law imposes. Most states have adopted some version of the Uniform Trust Code, and four duties shape what a trustee can actually do with the money.
The duty of loyalty requires the trustee to manage the account solely in the interest of the beneficiaries. Self-dealing is the clearest violation: a trustee cannot lend trust money to themselves, buy trust property at a bargain price, or route trust business to a company they own.
The duty of impartiality applies when a trust has two or more beneficiaries with different interests. If one beneficiary receives income during their lifetime and another receives the remainder, the trustee cannot invest entirely for growth or entirely for income. Each beneficiary’s interest gets due regard.
The duty of prudence, sometimes called the prudent investor rule, requires reasonable care, skill, and caution in managing trust assets. A trustee will not be liable simply because an investment lost value. But keeping the entire trust in a single stock, or parking large sums in a non-interest-bearing checking account for years, would likely fall short.
The duty to inform and account keeps the other three enforceable. Trustees must maintain accurate records of every transaction and provide regular reports to beneficiaries, typically including receipts and disbursements, assets on hand, gains and losses, trustee compensation, and the allocation between principal and income.
Revocable vs. Irrevocable: Who Really Has the Power
The biggest structural question for control is whether the trust is revocable or irrevocable, because that determines how much power the settlor (the person who created and funded the trust) still holds.
In a revocable trust, the settlor keeps the ability to amend, revoke, or terminate the trust during their lifetime. Under the Uniform Trust Code, while a trust is revocable and the settlor has capacity, the trustee’s duties run to the settlor rather than to the beneficiaries. The settlor can direct the trustee to return assets, change the trustee, rewrite the distribution terms, or close the bank account entirely and take the money back. Many people who create revocable living trusts also serve as their own trustee, which means they hold both roles at once.
Once a trust becomes irrevocable, the settlor gives up that power. The settlor cannot unilaterally reclaim the assets, change the terms, or direct the trustee on how to manage the account. The trustee alone controls the funds, subject to the trust’s instructions and fiduciary duties. Changes generally require either beneficiary consent or a court order.
A revocable trust usually becomes irrevocable when the settlor dies. That is where many families first run into questions about account control. The successor trustee steps in, reviews the trust terms, settles outstanding debts, and distributes assets according to the document. The terms are locked in at that point, which is why getting them right during the settlor’s lifetime matters.
When Co-Trustees Share the Account
Trust documents sometimes name two or more co-trustees. This is common with family trusts, where siblings might serve together after a parent’s death.
Under the framework most states follow, co-trustees who cannot reach a unanimous decision may act by majority vote. If three siblings serve and two agree on a distribution, the third is outvoted. Each co-trustee is expected to participate in administration unless temporarily unable to do so because of illness, absence, or similar incapacity. A co-trustee who sits back and lets another handle everything is not off the hook: each has a duty to exercise reasonable care to prevent a serious breach by a fellow co-trustee and to compel a correction if one occurs.
Banks handle co-trustee accounts differently. Some require all co-trustees to sign for transactions above a certain threshold. Others allow any single co-trustee to act. The trust document and the bank’s own policies together determine day-to-day access, so co-trustees should clarify signing authority when they open the account.
What Beneficiaries Can Do
Beneficiaries do not have direct control over the bank account, but their rights function as oversight on the trustee’s authority.
The most important right is access to information. Beneficiaries can request copies of the trust document (or at least the portions relevant to their interest), receive regular financial reports from the trustee, and ask for details about specific transactions. A trustee who stonewalls a reasonable request for information is violating a core duty, and that alone can be grounds for court intervention.
Beneficiaries can also enforce the trust’s terms. If a trustee makes unauthorized withdrawals, invests recklessly, fails to make required distributions, or otherwise mismanages the account, beneficiaries can petition a court. Available remedies include compelling the trustee to follow the trust terms, recovering misappropriated funds, reducing or denying the trustee’s compensation, and removing the trustee altogether. Courts can remove a trustee for a serious breach, persistent failure to administer the trust effectively, or unfitness for the role. Filing fees vary by jurisdiction and tend to be modest; the real cost is attorney fees, which can run into the thousands if the matter is contested.
When Control Passes to a Successor Trustee
Control does not last forever. A trustee might die, become incapacitated, resign, or be removed by a court. The trust document typically names a successor trustee who steps in with the same powers and duties as the original.
If no successor is named, or the named successor is unwilling or unable to serve, the qualified beneficiaries can agree unanimously on a replacement. Failing that, a court appoints one. The trust does not become ownerless just because the original trustee is gone.
The transition is not automatic at the bank, though. Financial institutions require documentation before granting a successor trustee access. Rather than handing over the full trust document, most states allow the trustee to present a certification of trust, a shorter document confirming the trust exists, identifying the current trustee, stating the trustee’s powers, and indicating whether the trust is revocable or irrevocable. It does not need to include the dispositive terms showing who gets what.
Banks typically also require a death certificate (if the prior trustee died), the successor trustee’s identification, and the successor trustee’s written acceptance of the role. Some banks use their own internal forms. Gathering all of it before visiting the bank saves time.
Two Practical Rules That Shape How the Account Operates
Beyond who signs the checks, two outside rules affect how a trustee runs the account.
The first is the trust’s tax identification number. A revocable living trust typically uses the settlor’s Social Security number during the settlor’s lifetime, because the IRS treats the trust’s income as the settlor’s income. The trustee does not need a separate Employer Identification Number in that situation. The IRS instructions for Form SS-4 confirm that certain grantor-type trusts do not need an EIN as long as the trustee furnishes the grantor’s name and taxpayer identification number to all payers.1IRS. Instructions for Form SS-4 (Rev. December 2025) Once the trust becomes irrevocable, usually at the settlor’s death, it becomes a separate tax entity and the successor trustee must obtain an EIN for the trust’s accounts and tax filings. Financial institutions sometimes push trustees to get an EIN even when one is not required, so it is worth checking with an estate planning attorney or tax professional before applying.
The second is FDIC insurance. Trust bank accounts are insured, but the coverage differs from a personal account. A trust owner’s deposits are insured for up to $250,000 per eligible beneficiary, with a maximum of $1,250,000 if five or more beneficiaries are named. The coverage applies to revocable and irrevocable trust accounts at the same bank, combined. The math is straightforward: multiply $250,000 by the number of unique eligible beneficiaries, up to the cap. A trust with three beneficiaries gets up to $750,000. The actual dollar amounts allocated to each beneficiary in the trust document do not factor into the calculation.2FDIC.gov. Your Insured Deposits A trustee holding a large cash balance at one bank should know these limits.