Ally Financial written dispute & complaint mailing address
To send Ally Financial a written dispute or complaint by mail, use Ally Financial, PO Box 380901, Bloomington, MN 55438. Sending Ally a written billing dispute or customer-service correspondence, per Ally's own official contact page. This is not a payment address — don't mail a payment here. Include your account number and a clear description of the issue, and keep a copy for your records.
Ally Financial — Payment disputes & customer service correspondence
Ally Financial PO Box 380901 Bloomington MN 55438
Sending Ally a written billing dispute or customer-service correspondence, per Ally's own official contact page.
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Your return address
Ally FinancialPO Box 380901Bloomington, MN 55438
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Key facts
- This address is for written disputes and complaints — not for sending a payment.
- Ally Financial is an online bank and credit card issuer.
- Under the FCBA, mail your written dispute within 60 days of the first statement showing the error.
- Include your account number, a clear description of the issue, and any supporting documents.
- PostPal prints your letter and mails it for you — no printer, envelope, stamps, or post office trip.
How to send your letter
- 1
Write your letter
State your full name and account number, the transaction or issue you're disputing (with the dollar amount, if it's a billing error), and what you'd like Ally Financial to do. Keep a copy for your records.
- 2
Attach supporting documents
Include copies (not originals) of anything that supports your case — a receipt, a merchant email, a statement excerpt, or a prior response from Ally Financial.
- 3
Address it to Ally Financial
Address it exactly as shown above: Ally Financial, PO Box 380901, Bloomington MN 55438.
- 4
Send it with PostPal
Write or upload your letter to PostPal with the address above prefilled. We print it, add your return address, and mail it for you — no printer, envelope, stamps, or trip to the post office.
Common questions
What is Ally Financial's address for a written dispute or complaint?
Ally Financial, PO Box 380901, Bloomington, MN 55438. Sending Ally a written billing dispute or customer-service correspondence, per Ally's own official contact page. Confirm it on Ally Financial's official site before anything time-sensitive — issuers do update these addresses.
Can I send a payment to this address?
No. This is a written-correspondence address for disputes and complaints, not a payment address. Ally Financial's payment address is different and is usually printed on your own statement or card — mailing a payment here risks delay or misapplied funds.
What happens after I send my letter?
Under the FCBA, mail your written dispute within 60 days of the first statement showing the error.
What should I include in the letter?
Your full name, account number, a clear description of the issue (with the date and amount, if it's a transaction), and what outcome you're asking for. Copies of any supporting documents strengthen your case.
How do I mail this without a printer?
Write or upload your letter to PostPal with the address prefilled. We print it, add your return address, and mail it for you — no printer, stamps, or post office trip needed.
Sources
Addresses verified September 2026 against official sources. Always confirm on the official site before time-sensitive filings.