Bank Merger Checklist: What to Check First

Before you choose a bank after a merger, check your new bank’s fees, branch and ATM network, digital tools, deposit insurance coverage, and loan terms—these change most often in a merger. You should also confirm that your account number, routing number, and automatic payments will keep working, and compare the merged bank’s rates against competitors before you decide to stay.

Why Bank Mergers Change Your Banking

When two banks merge, the combined institution must consolidate accounts, systems, and branches. Legally, your deposits remain insured up to the same limit (currently $250,000 per depositor, per account ownership category, through the FDIC), but the practical details of your account can change. You may get a new account number, a new routing number, different fees, or a different online banking platform. The merger also often reduces the number of branches and ATMs in certain areas, and the combined bank may close overlapping locations.

Because these changes are common, you should not assume your old terms carry over. The bank will send a notice—usually 30 to 90 days before the conversion—but the notice may be buried in a long document. Your job is to read it and compare the new terms with what you had.

What to Check Before You Decide to Stay

Go through this checklist before the conversion date, and again after you receive the final disclosure:

• Account number and routing number: Will they change? If yes, update direct deposit, automatic bill pay, and any linked external accounts.
• Monthly maintenance fees: Does the merged bank charge a fee that your old bank didn’t? Can you waive it with a minimum balance or direct deposit?
• ATM fees: How many ATMs are in the combined network? Does the bank reimburse out-of-network ATM fees? What is the new out-of-network fee?
• Branch locations: Is your usual branch staying open? Are there branches near your home and work? If the bank closes branches, what is the nearest alternative?
• Online and mobile banking: Will the app change? Do you need to re-enroll in online banking? Will your saved payees and scheduled transfers carry over?
• Interest rates: Does your savings account or CD rate change? If the rate drops, consider moving to a higher-yield account.
• Loan terms: If you have a mortgage, auto loan, or credit card with the bank, do the interest rate, payment due date, or grace period change? (The merger itself does not change your contractual rate, but the bank may change fees or servicing.)
• Overdraft and insufficient funds fees: These often increase after a merger. Check the new fee schedule.
• Deposit insurance: Your FDIC coverage remains $250,000 per ownership category, but if you had accounts at both banks, they are now combined at one institution. That could push you over the limit—you may need to spread funds across banks or change ownership categories.

How to Compare the Merged Bank with Alternatives

Once you know the new terms, compare them with at least two other banks—one large national bank and one online bank or credit union. Use a simple spreadsheet with these columns: monthly fee, minimum balance to avoid fee, ATM network size, out-of-network ATM fee, savings APY, checking APY, mobile app rating, and branch proximity. For each item, note whether the merged bank is better, worse, or the same.

Pay special attention to the total cost of fees. If you maintain a low balance, a bank with no monthly fee and no minimum is often cheaper than a traditional bank with a $15 fee. If you use ATMs frequently, a bank with a large ATM network or fee reimbursement may save you more than a bank with a slightly higher interest rate.

Also consider the convenience of switching. If you have many automatic payments and direct deposits, switching banks takes time—typically 2 to 4 hours of administrative work. That effort is worth it if you save more than a few hundred dollars per year. But if the merged bank’s terms are similar to your old ones, staying may be the simplest choice.

Common Problems After a Merger

Even if you decide to stay, you may run into issues during the transition. The most common problems are:

• Debit card stops working: The bank may issue a new card with a new number. Activate it before the old one is deactivated.
• Online banking login fails: You may need to create a new username or password. Do this before the conversion date if possible.
• Automatic payments fail: If your account number changes, update it with every biller. Missing one can cause late fees.
• Checks become invalid: Old checks may not work after the conversion. Order new ones early.
• Customer service wait times: Mergers often cause a spike in calls. Use the bank’s website or app for routine questions.

To avoid these issues, set aside an hour to update your account information with all payees and employers. Keep a record of the old and new account numbers, and monitor your statements for the first two months after the conversion.

Costs of Staying vs. Switching

Staying with the merged bank may seem free, but there are hidden costs. If the new monthly fee is higher, you pay that every month. If the ATM network shrinks, you pay out-of-network fees. If the savings rate drops, you lose interest income. Switching banks also has costs—time, potential fees for closing the old account (rare, but check), and the risk of missing a payment during the transition.

Then add the estimated ATM fees and lost interest. If the total is more than $50 per year, switching is usually worth considering. If it is less, staying may be simpler.

Safety and Deposit Insurance After a Merger

Your deposits remain FDIC-insured up to $250,000 per depositor, per ownership category, at the merged bank. However, if you had accounts at both merging banks, the combined balance at the new bank counts toward a single limit. For example, if you had $150,000 in a savings account at Bank A and $150,000 in a savings account at Bank B, and they merge, you now have $300,000 in one bank. Only $250,000 is insured, leaving $50,000 uninsured.

To stay fully insured, you can:

• Move excess funds to another bank.
• Change the ownership category (e.g., joint account, trust account, retirement account).
• Open an account at a credit union (NCUA insurance covers up to $250,000).

The merger itself does not affect the safety of your money—the FDIC backs the combined institution—but the insurance limit applies per bank, so you must manage your total balance.

Frequently Asked Questions

Will my account number change after a bank merger?

Sometimes. Many banks keep your account number the same, but some assign new numbers during the conversion. The bank will notify you in advance. If your number changes, update direct deposit and automatic payments with the new number.

Can my bank raise my interest rate after a merger?

Yes, for variable-rate accounts like savings or money market accounts, the bank can change the rate at any time. For fixed-rate CDs, the rate is locked until maturity. Check the new rate schedule after the merger and compare it with other banks.

What happens to my credit card if my bank merges?

Your credit card account will transfer to the merged bank. The interest rate and terms of your existing balance generally stay the same, but the bank may change fees, due dates, or the online portal. Read the notice you receive.

Do I need to do anything to keep my deposit insurance?

No, FDIC insurance is automatic. But if your combined balance at the merged bank exceeds $250,000 in any ownership category, you may want to move funds to another bank to keep all deposits insured.

Should I close my account right away if I don’t like the merger terms?

Wait until you have opened a new account and moved your automatic payments and direct deposits. Closing an account with a negative balance or unpaid fees can hurt your credit report. Plan the switch carefully.

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