How to Handle Flagstar Bank / NYCB Accounts After a Death: 2026 Guide

This guide is for educational purposes only and is not legal advice. Institutional procedures change — verify current requirements directly with Flagstar Bank, N.A. or consult an attorney.

Last updated: February 16, 2026

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Quick Contact

Estate Dept. Phone
(888) 248-6423
Hours
Mon–Fri, 8:00 AM – 10:00 PM ET; Sat–Sun, 8:00 AM – 5:00 PM ET
Fax
(214) 222-6053
Mailing Address
Flagstar Bank Attn: Bank by Mail 102 Duffy Ave Hicksville, NY 11801

Overview

Flagstar Bank, N.A. (formerly New York Community Bank or NYCB) is a leading regional bank operating primarily in the Northeast and Midwest, while also serving as a major national mortgage servicer. Following the merger with NYCB and the acquisition of Signature Bank assets, most retail branches now operate under the Flagstar brand.

When an account holder passes away, the notification process depends on whether the deceased held deposit accounts (checking, savings, CDs) or loans (mortgages). Flagstar maintains separate departments for these services.

This guide covers the specific steps for both retail banking and mortgage/loan accounts, including the correct phone numbers and mailing addresses for each.

This guide provides informational guidance only. It is not legal advice, and SwiftProbate is not a law firm. Laws and institutional procedures change — verify current requirements directly with Flagstar Bank and consider consulting a qualified attorney.

Notification Process

How to Notify Flagstar Bank of a Death

Step 1: Determine the Account Type

Flagstar handles Retail Banking (deposits) and Loans/Mortgages separately. Check the deceased's statements to confirm which services they used.

  • Retail Banking: Checking, Savings, Money Market, CDs, Safe Deposit Boxes
  • Loans: Mortgages, Home Equity Lines of Credit (HELOC), Personal Loans

Step 2: Call the Appropriate Department

For Retail Banking (Deposits):

Call Customer Service to report the death and freeze the accounts.

  • Phone: (888) 248-6423
  • Hours: Mon–Fri, 8:00 AM – 10:00 PM ET; Sat–Sun, 8:00 AM – 5:00 PM ET

For Mortgages & Loans:

Call the specific "Notification of Deceased Customer" line.

  • Phone: (833) 755-2085
  • Hours: Mon–Fri, 7:00 AM – 8:00 PM CT

Step 3: Submit Required Documents

You will need to mail documents to the correct processing center.

For Retail Banking (Deposits):

Mail a letter of instruction (requesting account closure or transfer) along with the death certificate and estate documents to:

Flagstar Bank

Attn: Bank by Mail

102 Duffy Ave

Hicksville, NY 11801

For Mortgages & Loans:

Mail the death certificate and assumption/successor documents to:

Flagstar Bank

PO Box 612488

Dallas, TX 75261

Or Fax to: (214) 222-6053

Or Email: [email protected]

Step 4: Wait for Processing

  • Banking: Once documents are received, Flagstar typically closes the account and issues a check for the remaining balance within 2–4 weeks.
  • Mortgages: The "Successor in Interest" review process can take 30 days or more. You must continue making payments during this time to avoid default.

Required Documents

Documents Flagstar Bank Requires

For Retail Banking (Deposits)

DocumentDetails
Certified Death CertificateOriginal or certified copy
Letter of InstructionSigned request to close account and remit funds
Government-Issued IDCopy of the executor's or claimant's ID
Estate DocumentsLetters Testamentary or Letters of Administration (for probate estates)
Small Estate AffidavitIf applicable under state law (for smaller balances)

For Mortgages & Loans

DocumentDetails
Certified Death CertificateRequired to update borrower status
Evidence of Family RelationshipBirth certificate, marriage certificate (if claiming as heir)
Will / Probate OrdersLetters Testamentary or Executor appointment documents
DeedTo validate current ownership of the property
Successor in Interest FormProvided by Flagstar upon initial contact

Account Types

How Flagstar Handles Different Account Types

Joint Accounts (JTWROS)

For joint checking or savings accounts, the surviving owner generally retains full access. You should still provide a death certificate to remove the decedent's name.

  • Timeline: Immediate access; name removal takes 5–10 business days.

Payable on Death (POD) / Beneficiary Accounts

Accounts with a named beneficiary do not go through probate. The beneficiary must submit a death certificate and ID to claim the funds.

  • Timeline: 2–4 weeks for check issuance.

Individual Accounts (Sole Owner)

If the account has no beneficiary and is in the decedent's sole name, it becomes part of the estate. Flagstar requires Letters Testamentary or Letters of Administration to release funds to the estate representative.

  • Timeline: 3–6+ months (dependent on probate court).

Mortgages

The mortgage does not disappear upon death. A "Successor in Interest" (usually the heir who inherits the house) must be established.

  • Process: Submit death certificate and deed.
  • Assumption: The successor may be able to "assume" the loan under the original terms.
  • Payments: Must continue to be paid during the review process.

Safe Deposit Boxes

Access is restricted immediately upon notification. State laws vary, but typically an executor with court orders or a joint renter is required to open the box.

State Considerations

How Your State Affects the Flagstar Process

Flagstar Bank (and the former NYCB) has a strong retail presence in New York, Michigan, New Jersey, Ohio, Florida, and Arizona, but operates as a national mortgage servicer.

  • New York: Strict probate rules apply. For small estates (under $50,000), a "Voluntary Administration" (small estate affidavit) is often accepted.
  • Michigan: Flagstar's original headquarters. Specific forms may be available at local branches.
  • Community Property States: If the deceased lived in AZ, CA, ID, LA, NV, NM, TX, WA, or WI, spousal rights to accounts may supersede beneficiary designations.

Key State Variations

StateSmall Estate ThresholdProbate Court
New York$50,000Surrogate's Court
Michigan~$27,000 (indexed)Probate Court
Florida$75,000Circuit Court
California$184,500Superior Court

For detailed probate requirements, see our state probate guides.

Timelines

How Long Flagstar Takes to Release Funds

Account TypeEstimated TimelineKey Factor
Joint AccountsImmediateSurvivor has continuous access
Beneficiary (POD)2–4 weeksAfter submitting death cert & ID
Estate Accounts3–6 weeksAfter submitting court documents
Mortgage Assumption30–60 daysRequires "Successor in Interest" approval
Small Estate2–4 weeksVaries by state affidavit rules

Note: Mortgage reviews often take longer than deposit account closures. Ensure mortgage payments are maintained to prevent late fees or foreclosure notices.

Tips & Pitfalls

Common Pitfalls and Tips

Distinguish Between "Bank" and "Mortgage"

Flagstar has distinct departments for deposits and loans. Sending banking documents to the Dallas mortgage center (or vice versa) will cause significant delays.

Do Not Stop Mortgage Payments

The most common error is stopping mortgage payments while the estate is being settled. The loan remains active, and missed payments will damage the credit of the estate/heirs and incur fees.

Check for "Legacy" Accounts

Since Flagstar merged with NYCB and acquired Signature Bank assets, the deceased may have paperwork with these older logos. All are now handled by Flagstar, but routing numbers may differ (Legacy NYCB: 226071004 vs. Legacy Signature: 026013576).

Keep the Case Number

When you call the Mortgage/Loan department (833-755-2085), you will be assigned a reference number. Keep this handy for all future calls.

FDIC Insurance Limits

If a joint owner dies, the FDIC insurance coverage on the account may decrease after a 6-month grace period. Review account balances if they exceed $250,000.

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Document Checklist

DocumentWhen RequiredHow to Obtain
Certified Death CertificateAlwaysCounty vital records office or funeral home
Government-issued Photo IDAlwaysDriver's license, passport, or state ID of the claimant
Letter of InstructionRetail Banking (Deposits)Written by the executor/heir requesting account closure
Letters Testamentary / AdministrationProbate estates (Individual accounts)Issued by the probate/surrogate court
Small Estate AffidavitSmall estates (no probate)State-specific form (check local court website)
Successor in Interest FormMortgagesProvided by Flagstar Loan Servicing
Deed / Evidence of TitleMortgagesCounty Recorder's Office

Account Types at a Glance

Account TypeProcessEst. TimelineProbate?
Joint Account (JTWROS)Surviving owner retains access; submit death cert to remove name5–10 business daysNo
POD/Beneficiary AccountBeneficiary claims funds with death cert and ID2–4 weeksNo
Individual Account (No Beneficiary)Requires court appointment (Letters Testamentary) to release funds3–6+ monthsYes
Mortgage / HELOCEstablish 'Successor in Interest' to assume or pay off loan30–60 daysNo

Frequently Asked Questions

How do I notify Flagstar Bank of a death?
For deposit accounts, call (888) 248-6423. For mortgages and loans, call the dedicated Deceased Customer line at (833) 755-2085.
Where do I mail death certificates for Flagstar accounts?
For bank accounts: Flagstar Bank, Attn: Bank by Mail, 102 Duffy Ave, Hicksville, NY 11801. For mortgages: Flagstar Bank, PO Box 612488, Dallas, TX 75261.
Does Flagstar require probate for all accounts?
No. Joint accounts and accounts with named beneficiaries (POD/TOD) do not require probate. Only individual accounts without beneficiaries typically require probate documents.
What happens to a Flagstar mortgage after death?
The mortgage must continue to be paid. An heir can apply to become the 'Successor in Interest' to obtain information and potentially assume the loan.
Can I use a Small Estate Affidavit for Flagstar accounts?
Yes, if the total value of the estate falls below your state's threshold (e.g., $50,000 in New York) and there is no formal probate, Flagstar generally accepts a Small Estate Affidavit.

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Informational guidance only — not legal advice

Disclaimer: This article is for informational purposes only and does not constitute legal advice. Institutional policies and procedures may change without notice. Consult a qualified attorney for advice specific to your situation. SwiftProbate is not a law firm and does not provide legal representation.