Adding a Sixth Trust Beneficiary Looks Like More FDIC Coverage. It Is Not.

The Federal Deposit Insurance Corporation does not price a trust account by what the trust is worth. It counts people. Since April 1, 2024, the coverage on one depositor's trust deposits at one insured bank is $250,000 multiplied by the number of the trust's eligible beneficiaries, and that multiplier stops at five.

The result is a ceiling rather than a ladder that keeps climbing. A grantor with five eligible beneficiaries is insured to $1,250,000 at that bank. A grantor with nine eligible beneficiaries is insured to the same $1,250,000. The sixth, seventh, eighth and ninth names change the trust document and change nothing about the insurance.

The FDIC stated the arithmetic plainly when it adopted the rule. In its 2022 Financial Institution Letter announcing the final rule on simplification of deposit insurance rules for trust and mortgage servicing accounts, it wrote that "a deposit owner's trust deposits will be insured in an amount up to $250,000 per beneficiary, not to exceed five beneficiaries," and that the rule "provides a maximum amount of deposit insurance coverage of $1,250,000 per owner, per insured depository institution for trust deposits."

The formula as the FDIC writes it

The agency's consumer summary, Deposit Insurance At A Glance, reduces the trust category to a single line:

# of Owners X # of Distinct Beneficiaries X $250,000 = Amount Insured (not to exceed $1,250,000 per owner for all trust accounts)

Three terms, and each one behaves differently.

• Owners. This multiplies without a cap of its own. Two grantors of the same trust each get their own calculation.
• Distinct beneficiaries. This is the term that stops at five.
• $250,000. This is the standard maximum deposit insurance amount, the same figure that applies per depositor in every other ownership category.

The parenthetical at the end is the operative constraint, and it is worded per owner rather than per account. A grantor who opens three separate trust accounts at the same bank does not get three caps. All of that grantor's trust deposits at that bank are added together first, and the $1,250,000 ceiling is applied to the total.

Which beneficiaries the rule is willing to count

Not every name in a trust instrument is an eligible beneficiary. The FDIC's Small Entity Compliance Guide on Simplification of Deposit Insurance Rules sets the boundary: "The definition of eligible beneficiary includes natural persons, charitable organizations, and non-profit entities recognized as such under the IRS Code of 1986."

Three categories, and nothing else. A living person counts. An organization the Internal Revenue Service recognizes as a charity or non-profit counts. A for-profit company named as a remainder beneficiary does not fit any of the three, and neither does an animal named in a pet trust, however the state law of the trust treats it.

What the rule pointedly stopped caring about is how the money is divided. The same compliance guide states that "coverage does not depend upon the allocation of funds among beneficiaries or contingencies in a trust agreement." Before April 2024, an irrevocable trust with contingent interests could produce a coverage figure that had little to do with the number of names, and a revocable trust with more than five beneficiaries and unequal shares ran through an alternate calculation. In the FDIC's 2022 banker seminar materials on the new trust account rule, the contingent-versus-non-contingent distinction is described as something that will "no longer be considered in determining coverage."

The same materials note a recordkeeping point that survives the simplification. Titling an informal trust account as payable-on-death or in-trust-for is no longer required for coverage, but "the beneficiaries of informal trusts still have to be identified in bank records." An unrecorded intention is not a countable beneficiary.

Worked figures

Each of the following assumes one FDIC-insured bank and eligible beneficiaries as defined above.

One grantor, three beneficiaries

1 owner × 3 beneficiaries × $250,000 = $750,000. A balance of $900,000 in that trust leaves $150,000 outside the insurance limit at that bank.

Two grantors, four beneficiaries

2 owners × 4 beneficiaries × $250,000 = $2,000,000. This is the arithmetic the FDIC used in its banker seminar materials, which state that with two owners and four eligible beneficiaries "the owners' accounts would be added together and the combined balance insured up to $2,000,000." The per-owner ceiling of $1,250,000 is not reached here, because each owner's share of the calculation is $1,000,000.

One grantor, nine beneficiaries

Nine names do not produce $2,250,000. The multiplier is capped at five, so the figure is $1,250,000. Deposit Insurance At A Glance states the outcome directly: as of April 1, 2024, "the maximum insurance coverage for a trust owner with five or more beneficiaries is $1,250,000 per owner for all trust accounts."

One grantor, two separate trusts, five beneficiaries in total

Still $1,250,000. The ceiling attaches to the owner at the bank, not to each account. Splitting $2,000,000 between a revocable living trust and an irrevocable trust at the same institution does not create two ceilings, because the 2024 rule merged the two into a single category. The compliance guide describes the change as merging "the revocable trust and irrevocable trust categories, currently found in § 330.10 and § 330.13, respectively, into one category, 'trust accounts.'"

The separateness of those categories is the reason the trust cap is not the whole story for a household. The FDIC's Understanding Deposit Insurance page states the aggregation rule in one sentence: "All of your deposits in the same ownership category in the same FDIC-insured bank are added together for the purpose of determining FDIC deposit insurance coverage." Certain retirement accounts sit in a category of their own, which is why the balance that drives a first required minimum distribution deferred to April 1 is not thrown in with trust deposits at the same institution.

The $250,000 that does most of the work

Every figure above is a multiple of the standard maximum deposit insurance amount. That number is statutory, not administrative. Unlike an Internal Revenue Service threshold reset by revenue procedure each autumn, which is the mechanism behind the December 1 eligibility rule that fills a full-year HSA limit, the deposit insurance limit moves only when Congress moves it.

It has been raised seven times. The FDIC's May 2023 report Options for Deposit Insurance Reform lists the eight statutory coverage levels in its Table 3.1: $2,500 from January 1 to June 30, 1934, then $5,000 later that year, $10,000 in 1950, $15,000 in 1966, $20,000 in 1969, $40,000 in 1974, $100,000 in 1980, and $250,000 in 2008 as a temporary increase made permanent in 2010.

The same report contains a second series that never became law in effect. The Federal Deposit Insurance Reform Act of 2005 built in a cost-of-living mechanism: the report states that "FDIRA provided that the SMDIA be adjusted every five years and rounded down to the nearest $10,000." Run forward, that formula pointed at $100,000 in 2010, $110,000 in 2015, and $130,000 in 2020. None of those took effect, because the 2008 jump to $250,000 "effectively superseded any such cost-of-living adjustment; it likely will continue to do so for a considerable period absent new legislation."

That is the practical reason the $250,000 has held for eighteen years while nearly every other federal personal-finance number moved annually. There is an indexing mechanism, and the statutory number is sitting well above what the mechanism would have produced.

The threshold behaves like a rate change, not a benefit change

It is worth being precise about what the fifth beneficiary does. It is the last name that alters the multiplier, and after it the marginal value of an additional beneficiary is zero. That is the same shape as the second bend point in the Social Security benefit formula, where crossing a line changes the rate at which the next dollar converts rather than the benefit already earned.

The consequence for someone comparing banks is narrow and specific. Once a grantor's trust deposits at one institution exceed $1,250,000, no change to the trust document raises the insured amount at that institution. The variables that remain are the number of owners and the number of insured banks, both of which sit outside the trust instrument.

Numbers to Re-check

Figure	Basis used here	Where to confirm	What would change it
$250,000 standard maximum deposit insurance amount	In effect since 2008, made permanent in 2010; current as of 2026	FDIC, Understanding Deposit Insurance	An act of Congress
$1,250,000 trust category cap per owner, per bank	Final rule effective April 1, 2024	FDIC, 2022 Financial Institution Letter on the trust rule	FDIC rulemaking, or a change in the $250,000 figure
Five-beneficiary maximum	Final rule effective April 1, 2024	FDIC, Deposit Insurance At A Glance	FDIC rulemaking
Definition of eligible beneficiary	Natural persons, charitable organizations, non-profit entities recognized under the IRS Code of 1986	FDIC Small Entity Compliance Guide	FDIC rulemaking
$100,000 / $110,000 / $130,000 cost-of-living path	FDIC projections of the 2005 reform formula for 2010, 2015 and 2020	FDIC, Options for Deposit Insurance Reform, May 2023	Superseded; would require new legislation to bind

Where This Doesn't Apply

• Credit unions. Share accounts at federally insured credit unions are covered by the National Credit Union Share Insurance Fund under National Credit Union Administration rules, not by the FDIC regulation described here. The trust provisions are not identical and should be checked separately.
• Anything that is not a deposit. The FDIC states that it "only covers deposits, and only if your bank is FDIC-insured," and lists stock investments, bond investments, mutual funds, annuities and life insurance policies as products it does not cover. A trust holding securities through a bank's investment arm is outside this rule entirely.
• Multiple branches of the same bank. Branches are not separate institutions. Spreading trust deposits across three offices of one chartered bank produces one $1,250,000 ceiling, not three.
• Mortgage servicing accounts. These were changed by the same 2024 rulemaking but under a different provision. Principal and interest funds in a mortgage servicing account are insured up to $250,000 per mortgagor, which is a per-borrower calculation and not the beneficiary count described above.
• Beneficiaries outside the three eligible types. A named beneficiary that is neither a living person nor an IRS-recognized charity or non-profit does not add a $250,000 increment. How the deposit is then insured depends on the specific arrangement and is a question for the bank's deposit insurance staff or the FDIC directly.
• Whether the trust itself works. Deposit insurance coverage and the validity, taxation and administration of a trust are separate subjects governed by separate law. Coverage arithmetic says nothing about whether a trust accomplishes what its grantor intends.
• Balances that never sit at one bank. The cap binds per owner, per insured institution. It is not a limit on how much a trust may hold, and it does not describe risk at an institution that does not fail.

Sources

• Federal Deposit Insurance Corporation, Financial Institution Letter, Final Rulemaking on Simplification of Deposit Insurance Rules for Trust and Mortgage Servicing Accounts
• Federal Deposit Insurance Corporation, Small Entity Compliance Guide, Simplification of Deposit Insurance Rules
• Federal Deposit Insurance Corporation, Deposit Insurance At A Glance
• Federal Deposit Insurance Corporation, Understanding Deposit Insurance
• Federal Deposit Insurance Corporation, New Trust Account Rule (April 2024), banker seminar materials, 2022
• Federal Deposit Insurance Corporation, Options for Deposit Insurance Reform, Section 3, May 2023

This article explains how the rules are written. It is not tax, legal, or insurance advice, and it does not account for any individual situation. Deposit insurance coverage for a specific trust depends on the trust's terms and on the bank's records; confirm coverage with the insured institution or with the FDIC, and consult a qualified attorney or tax professional about the trust itself. Amounts and thresholds change; verify the current figures at the sources listed above before acting.