M&T Bank Fax Numbers
M&T Bank publishes a fax number for its Estate Services team — the department that handles a deceased customer's accounts. Confirm it below and fax your documents in minutes.
Last verified July 18, 2026 · Official domain: mtb.com
Verified M&T Bank fax numbers by department
Estate Services
Notifying M&T of a customer's death and submitting death certificates and estate-settlement documents.
Fax
(716) 274-1087
- Email:
- EstateServices@mtb.com
- Mail:
- M&T Bank Estate Services, PO Box 1850, Buffalo, NY 14240
M&T accepts estate documents by email (EstateServices@mtb.com), fax, or mail. A legible copy of the certified death certificate is accepted by fax or email.
Fax to M&T Bank — Estate Services
Faxing to M&T Bank — Estate Services at (716) 274-1087
Confirm (716) 274-1087 against mtb.com before sending. Banks change department fax numbers.
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Official M&T Bank contact channels
Estate Services fax
716-274-1087
Estate Services email
EstateServices@mtb.com
Estate Services mail
M&T Bank Estate Services, PO Box 1850, Buffalo, NY 14240
General customer service
1-800-724-2440
Available 24/7 for account questions and department routing.
What to include when you fax M&T Bank
- A cover sheet addressed to M&T Bank Estate Services
- The deceased customer's full name and account number(s)
- A legible copy of the certified death certificate (with a visible seal)
- Your legal authority documents (letters testamentary/administration or small-estate affidavit)
- Your name, relationship to the deceased, phone number, and mailing address
How to fax M&T Bank
M&T Bank's documented customer fax number belongs to its Estate Services team, which helps families settle a deceased customer's accounts. On mtb.com, M&T says it accepts estate documents by email, fax, or mail, and lists a fax number of 716-274-1087, an email of EstateServices@mtb.com, and a mailing address of M&T Bank Estate Services, PO Box 1850, Buffalo, NY 14240.
When you fax Estate Services, address the cover sheet to M&T Bank Estate Services and include the deceased customer's name and account number(s). M&T notes that a legible copy of the certified death certificate — one with a visible seal — is acceptable when sent by fax or email, so you do not have to mail the original. Attach your legal authority documents (letters testamentary or letters of administration) so the team can release or distribute the accounts.
For general account questions or to be routed to the right department, M&T's customer service line is 1-800-724-2440, available around the clock. M&T does not broadly advertise customer fax numbers for other departments on mtb.com, so the Estate Services fax above is the one clearly documented on the bank's official site.
M&T Bank's preferred alternatives to fax
M&T gives estate representatives three equal options — email (EstateServices@mtb.com), fax (716-274-1087), and mail — and explicitly accepts a legible copy of the death certificate by fax or email. Email and fax are faster than mailing originals; fax gives you a dated transmission confirmation of when the estate was notified.
Faxing financial documents to M&T Bank safely
Estate documents include death certificates and court letters tied to Social Security numbers. Fax legible copies rather than originals, confirm the death certificate seal is visible, address the cover sheet to Estate Services, and retain your transmission confirmation as proof of notification.
M&T Bank fax FAQ
What is the M&T Bank Estate Services fax number?
M&T Bank Estate Services accepts documents by fax at 716-274-1087. You can also email EstateServices@mtb.com or mail M&T Bank Estate Services, PO Box 1850, Buffalo, NY 14240.
How do I notify M&T Bank that a customer has died?
Contact M&T Bank Estate Services by fax (716-274-1087), email (EstateServices@mtb.com), or mail (M&T Bank Estate Services, PO Box 1850, Buffalo, NY 14240). Include the deceased's name and account numbers, a copy of the death certificate, and your legal authority documents.
Can I fax a death certificate to M&T Bank?
Yes. M&T accepts a legible copy of the certified death certificate — with a visible seal — by fax at 716-274-1087 or by email. You do not need to mail the original. Include a cover sheet addressed to Estate Services.
What is the M&T Bank estate mailing address?
Mail estate documents to M&T Bank Estate Services, PO Box 1850, Buffalo, NY 14240. The fax alternative is 716-274-1087 and the email is EstateServices@mtb.com.
Does M&T Bank have a general customer fax number?
M&T does not broadly advertise customer fax numbers for its general departments on mtb.com. The clearly documented customer fax is the Estate Services line, 716-274-1087. For other questions, M&T customer service is 1-800-724-2440, available 24/7.
Other bank fax guides
XenFax is an independent online fax service and is not affiliated with, endorsed by, or acting on behalf of any bank named on this page. Bank names and logos are the property of their respective owners. Banks change department fax numbers periodically — always confirm the number against the official source linked on this page before sending sensitive financial documents.