Money that Colorado and Arizona customers held at FirstBank is insured separately from their PNC accounts for six months after June 18, 2026, and certificates of deposit can keep that separate coverage past the six months. PNC says so on the welcome page it set up for former FirstBank customers: “FirstBank accounts will be separately insured from any PNC Bank accounts for six months after June 18, 2026.”
The rule matters because FDIC insurance is capped per depositor, per insured bank. When PNC took over FirstBank, two banks’ worth of accounts ended up under one name, and the separate-coverage window gives depositors time to sort out how much sits where.
The people affected are customers who held FirstBank balances and also had PNC accounts, or who kept large balances at FirstBank in the same ownership category. They have a limited period in which both piles of money count separately, and for CDs, a window tied to the maturity date instead of the calendar. PNC’s page does not list a calendar end date for the six months.
The $250,000 standard FDIC limit per depositor, per insured bank and per ownership category is the number this separate-insurance window is built around.
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How the FDIC rule works after a merger
The Federal Deposit Insurance Corporation’s insured deposits brochure sets the general rule for bank mergers. For at least six months after a merger, deposits from the bank that was taken over are separately insured from deposits at the bank that did the buying. The point of the grace period, the FDIC says, is to give depositors time to restructure accounts if they need to.
The standard maximum deposit insurance amount is $250,000 per depositor, per insured bank, for each ownership category. The FDIC lists the categories as single accounts, certain retirement accounts, joint accounts, trust accounts, employee benefit plan accounts, corporation, partnership and unincorporated association accounts, and government accounts. Funds held in different categories can add up to more than $250,000 at one bank and still be covered.
During the window, then, a depositor with $250,000 in a FirstBank single account and $250,000 in a PNC single account has both amounts insured, even though both banks are now PNC. That arithmetic is an illustration of the rule, not a statement about any particular customer.
What happens to FirstBank CDs
PNC’s page says certificates of deposit “will maintain separate insurance for six months after conversion” or until the next maturity date, whichever is later. A CD that matures well after the six months therefore stays separately insured until it matures.
The FDIC states the same treatment: CDs from the bank that was taken over are separately insured until the earliest maturity date after the grace period ends. There is a renewal wrinkle. A CD that matures during the six months and is renewed for the same term and dollar amount stays separately insured until the first maturity after the period ends. PNC says renewed CDs on the same terms keep separate coverage until the renewed CD matures. A CD renewed on any other basis loses its separate coverage when the six-month period ends, according to the FDIC.
The June dates behind the six months
PNC ties the window to June 18, 2026, the day FirstBank branches closed at noon local time and online and mobile banking went view-only at 8 p.m. Mountain time. System conversions ran June 19 through 21, and PNC lists June 22 as the day full access to PNC products and the PNC Mobile app began and branches reopened.
In a June 22 announcement, PNC said it had completed the conversion of 780,000 customers and that all FirstBank branches in Colorado and Arizona were now PNC branches. The release does not mention deposit insurance.
Other deadlines have already passed. FirstBank debit cards stopped working for purchases and withdrawals after Sept. 24, and FirstBank credit cards were no longer valid after Sept. 30. FirstBank’s routing number was deactivated on July 18. Account and routing numbers changed with the conversion, and PNC says new numbers appear in the Account Transformation Confirmation mailing. FirstBank checks keep posting to PNC accounts, and PNC says no end date has been set for honoring them.
Sorting out coverage before the six months run out
The free route is the FDIC’s Electronic Deposit Insurance Estimator, known as EDIE, which the agency describes as a simple tool for calculating coverage. A depositor can list every account at PNC, including those that came over from FirstBank, by owner and ownership category, and see which balances exceed $250,000.
It helps to gather the confirmation mailing with the new account numbers, a current statement for each account and the maturity date of every CD. The CD dates are the ones to watch, since they decide how long separate coverage lasts for each certificate, and a renewal on different terms can end it sooner.
PNC’s FirstBank page is where the dates come from. Its core line sits in the FDIC section: separate insurance for six months after June 18, 2026, with CDs covered until the later of six months or the next maturity.
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This article was produced with AI assistance and reviewed by The Financial Wire’s editorial team.
Warren Cohen is a finance writer based in Phoenix, Arizona, covering personal finance topics including credit, banking, and beginner investing. He earned his degree in business administration from Arizona State University and began his career working in consumer finance, where he gained direct experience with lending and credit systems. He now writes for personal finance websites and fintech platforms, focusing on clear, practical content that helps readers make informed financial decisions.
