At 72 Her Two Banks Will Merge, and Her Deposits Could Suddenly Top the FDIC Limit. She Gets a Grace Period to Fix It

Consider an example retiree who, at 72, holds about $240,000 at one bank and $200,000 at another, intentionally, so every dollar stays under the FDIC’s insurance limit. Then a letter shows up in the mail. The two banks are merging into one.

Her careful split is about to become a single total of $440,000 at one bank. This is common for retirees who hold a lot of cash, and bank mergers happen all the time. The good news is she doesn’t have to scramble this week, because the rules give her a grace period. The bad news is that grace periods end, and nobody’s guaranteed to remind her.

An earlier piece explained how FDIC insurance works and how couples can insure more at one bank. This piece covers what happens when two of your banks become one.

Why $250,000 Is the Number That Matters Most

FDIC insurance is the government’s promise to pay back your deposits if a bank fails. The standard limit is $250,000 per depositor, per bank, for each ownership category. “Ownership category” just means how the account is titled: your name alone, joint with someone, a trust, and so on. The FDIC insures deposits by ownership category, so each category gets its own coverage.

Both of her accounts are in her name alone. Once the banks are one bank, a single $250,000 limit covers $440,000. That leaves about $190,000 uninsured.

Is that a real risk? Small banks have had holds failing this year, most recently on September 25, 2026. Big ones can go too. Silicon Valley Bank held more than $175 billion in deposits when it closed in March 2023.

How the Six-Month Grace Period Really Works

Under FDIC rules, when one insured bank takes over another’s deposits, those deposits keep their separate insurance for six months from the date the merger takes effect. For those six months, it’s as if she still has two banks.

CDs get a slightly different deal. A CD (certificate of deposit, meaning money locked up for a set term at a set rate) from the acquired bank remains separately insured until its earliest maturity date after the six-month period.

If a CD matures inside those six months and she renews it for the same dollar amount and the same term, coverage runs to the first maturity after the window. If she renews it any other way, or lets it roll into a regular account, separate coverage stops when the six months end.

So a two-year CD could remain protected well past the deadline. Her savings account won’t.

Four Moves to Make Before the Clock Runs Out

1. Add it all up by ownership category. List every account at both banks: checking, savings, money market, and CDs. Group them by how they’re titled. Anything over $250,000 in one category at the combined bank is the problem.
2. Run it through the FDIC’s own calculator. It’s called the Electronic Deposit Insurance Estimator (EDIE), and it shows, bank by bank, what’s covered and what isn’t. Enter the accounts as if the merger has already happened.
3. Retitle the account or move the extra. Trust accounts, including payable-on-death accounts where you simply name beneficiaries, are insured up to the standard limit times the number of beneficiaries, up to a maximum of 5. Since April 1, 2024, the cap is $1,250,000 per owner for all trust accounts at one bank. Name two kids on her savings, and that account alone could be covered up to $500,000.
4. Look at options outside the bank. Treasury bills are backed directly by the federal government, and 13-week bills recently yielded about 4%. The national average 12-month CD pays under 2%. We’ve also written about how brokerage insurance works differently from the FDIC.

Adding payable-on-death beneficiaries may increase her FDIC coverage, but she should first check whether the arrangement fits her estate plans and whether she has other trust accounts at the bank.

It’s free, the money stays where her bills already get paid, and it usually matches what she wants to happen anyway. One catch: beneficiaries must be specifically named in the bank’s deposit account records. Get written confirmation that the change went through.

Moving $190,000 to an unrelated bank works too. It’s just more friction: another login, another statement, and another tax form. And if she’s chasing yield, keep in mind that interest can increase a retiree’s taxable income and affect how much of Social Security is taxable.

Doing Nothing Is the Costly Mistake

The real trap is inertia. The letter arrives; she reads that her deposits remain separately insured for now, feels relieved, and files it away. Six months later, the protection quietly runs out. Nothing changes on her statement, so she has no reason to notice.

She’s also likely to keep doing what she always has, like depositing new money or letting interest pile up at the combined bank. Each dollar pushes her further past the limit once the window closes.

Put This One Date on Your Calendar Today

Find the merger’s effective date in the letter or on the bank’s website. Count forward six months and write that date down, with a reminder a month earlier. By then, every ownership category at the combined bank should sit at or below $250,000 or be covered by named beneficiaries.

Check each CD separately. CDs from the acquired bank may remain separately insured until their first maturity after the six-month period, depending on when they mature and whether they’re renewed.

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