From Intuit's official guidance: "Error 155 means that your financial institution isn't allowing QuickBooks to connect and retrieve your data. At this time, the financial institution hasn't told us when they'll begin allowing these connections again. While we work on getting this connection back up and running, you can use the transaction upload feature to manually import your bank transactions." — To escalate: contact your bank and ask them to submit authorization through fi.intuit.com. Record your case/ticket number for follow-up.

Bank Blocking Aggregation Services

Primary cause — the financial institution has blocked third-party aggregation services (like Intuit's bank feed service) from accessing customer account data. Some banks do this for security reasons, after system upgrades, or when their API contracts with Intuit expire. QB can't override this block — the bank's IT team must authorize the connection.

Bank Changed Open Banking Policy

Some banks update their open banking or data-sharing policies and stop allowing QB's aggregation service while they review or renegotiate data-sharing agreements. During this review period, Error 155 appears. When the bank completes its policy update and re-authorizes Intuit's service, the error resolves automatically.

Security Update at the Bank

After a bank implements a new security framework or authentication upgrade, existing third-party connections may be revoked pending re-authorization under the new security model. QB's aggregation credentials at the bank become invalid, and the bank returns Error 155 until the connection is re-authorized under the new framework.

Bank Not in Intuit's Supported Institution List

Some smaller banks, credit unions, or regional financial institutions have never agreed to allow Intuit's aggregation service. QB can't automatically connect to these institutions — Error 155 indicates QB can't establish an automatic connection with this institution. The workaround is always Web Connect manual import.

Expired Intuit-Bank Data Agreement

Intuit maintains data-sharing agreements with financial institutions. When these agreements expire and aren't immediately renewed, the bank's servers stop responding to Intuit's aggregation requests with Error 155 until the renewal is complete. This is typically temporary — Intuit works to renew these agreements, but some smaller institutions take longer.

Bank Requires Re-Authorization

Some banks periodically require customers to explicitly re-authorize third-party access to their accounts (a growing requirement under open banking regulations). If your authorization expired, the bank blocks QB's connection with 155 until you log into the bank's website and re-grant access to QB/Intuit.

METHOD 1 Contact Your Bank + Request Authorization via fi.intuit.com The only permanent fix — requires bank action

METHOD 2 Use Web Connect Manual Import as Workaround Keep bookkeeping current while bank resolves the block

METHOD 3 Check Bank's Website for Re-Authorization Prompt Bank may have sent a re-authorization notification

METHOD 4 Disconnect and Reconnect + Update QB Sometimes triggers re-authorization flow

Is there anything I can do in QuickBooks to fix Error 155?

Very limited — Error 155 means the bank has blocked QB's connection at the server level, and no amount of QB settings changes will override a server-side block. The only QB-side actions that sometimes help are: (1) disconnecting and reconnecting the bank feed, which can trigger a fresh authorization flow; (2) updating QB to ensure you have the latest Financial Institutions Directory; and (3) checking the bank's website for any pending authorization prompts. But if the bank has made a deliberate decision to block QB's aggregation service, the fix must come from the bank — either by contacting Intuit through fi.intuit.com or re-authorizing you individually.

How do I download a .QBO file from my bank for manual import?

Log into your bank's website → go to your account → find the option to Download, Export, or Save transactions (typically in the account history or statements section). Look for a format dropdown and select "QuickBooks" or ".QBO" format. If your bank only offers CSV, OFX, or other formats, you may need a converter tool, or you can manually enter transactions in QB. Once you have the .QBO file, in QB Desktop: File → Utilities → Import → Web Connect Files → select your .QBO file → follow the prompts to import into the correct account. In QB Online: Banking → Banking → drag and drop the .QBO file or use File Upload to import.