Bank Error 155 in QuickBooks Online – How to Solve It

QuickBooks Online Bank Error 155 solution guide. Resolve sync issues now at +1-866-513-4656. Bank errors in QuickBooks Online can pause your accounting progress right when you need accurate books the most. One common frustration users experience is Bank Error 155, which prevents QuickBooks from connecting to your bank to download recent transactions. This can interrupt your workflow, delay reconciliations, and cause reporting discrepancies — especially during month-end closing. Fix QuickBooks Online Bank Error 155 quickly. Step-by-step solution guide. Call +1-866-513-4656 for instant QBO error help. If you see QuickBooks displaying “Error 155: Bank connection error,” it means QuickBooks couldn’t sync securely with your bank or credit card provider. But don’t worry — this can be resolved with a few simple checks. If the issue persists or you need immediate assistance, call +1-866-513-4656 for expert guidance. <h2 id="what-is-quickbooks-online-bank-error-155" class="mb-2 mt-4 [.has-inline-images_&]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base visRefresh2026Fonts:text-lg first:mt-0 md:text-lg [hr+&]:mt-4">What Is QuickBooks Online Bank Error 155?</h2> Bank Error 155 usually occurs when QuickBooks fails to connect to your bank’s online services. It’s typically triggered by a temporary server issue, incorrect login credentials, or outdated connection settings. The error may appear with your bank’s name and prevent new transactions from downloading into QuickBooks Online or QuickBooks Desktop. <h2 id="common-causes-of-error-155-in-quickbooks-online" class="mb-2 mt-4 [.has-inline-images_&]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base visRefresh2026Fonts:text-lg first:mt-0 md:text-lg [hr+&]:mt-4">Common Causes of Error 155 in QuickBooks Online</h2> Understanding why this error appears helps you fix it faster. Below are the most common reasons: <ol class="marker:text-quiet list-decimal"> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Bank Server Downtime Your financial institution’s site may be under maintenance or experiencing technical outages, blocking QuickBooks from communicating with its servers. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Incorrect Login Details If your bank recently updated its login policy or required reauthentication, QuickBooks might reject outdated credentials. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Multi-Factor Authentication Settings When MFA is enabled, your bank may require additional verification (like a code or push notification) that QuickBooks cannot process automatically. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Corrupted Cache or Cookies Browser cookie files or cached data from previous sessions sometimes conflict with QuickBooks Online’s secure bank connection features. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Outdated QuickBooks or Bank Feeds Using older versions of QuickBooks Online or Desktop can break compatibility with your bank’s updated security standards. </li> </ol> <h2 id="step-by-step-solutions-to-fix-quickbooks-online-ba" class="mb-2 mt-4 [.has-inline-images_&]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base visRefresh2026Fonts:text-lg first:mt-0 md:text-lg [hr+&]:mt-4">Step-by-Step Solutions to Fix QuickBooks Online Bank Error 155</h2> Follow these methods in order to resolve bank error 155 efficiently. Each step works for both QuickBooks Online (QBO) and QuickBooks Desktop (QBD) versions. <h2 class="mb-2 mt-4 [.has-inline-images_&]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base first:mt-0">Step 1: Verify Your Bank Website Access</h2> <ol class="marker:text-quiet list-decimal"> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Open your browser and go directly to your bank’s official website. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Sign in using your online banking credentials. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Check if you can view account details, recent transactions, and statements. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> If you cannot log in or see a maintenance message, wait until your bank’s website is back online before reconnecting QuickBooks. </li> </ol> <h2 class="mb-2 mt-4 [.has-inline-images_&]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base first:mt-0">Step 2: Update Banking Connection in QuickBooks Online</h2> <ol class="marker:text-quiet list-decimal"> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Go to Banking/Transactions > Bank Transactions in QuickBooks Online. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Select Update in the upper right corner to refresh all connections. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> If prompted, re-enter your online banking credentials. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Wait for the sync to complete and check if the error clears. </li> </ol> <h2 class="mb-2 mt-4 [.has-inline-images_&]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base first:mt-0">Step 3: Clear Browser Cache and Restart QuickBooks</h2> <ol class="marker:text-quiet list-decimal"> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Sign out of QuickBooks Online. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Clear your browser’s cached data and cookies. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Close all tabs and restart the browser. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Log back into QuickBooks Online and recheck your banking dashboard. </li> </ol> <h2 class="mb-2 mt-4 [.has-inline-images_&]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base first:mt-0">Step 4: Manually Import Transactions</h2> If the automatic connection fails repeatedly, you can manually add your transactions: <ol class="marker:text-quiet list-decimal"> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Sign in to your bank account website. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Download your transaction file in .CSV, .QBO, or .QFX format. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> In QuickBooks Online, go to Banking > Link Account > Upload from File. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Choose the file, select the correct account, and complete the upload wizard. </li> </ol> This method is ideal if you’re learning how to import checks into QuickBooks Online or how to manually add credit card transactions in QuickBooks Online when automatic sync fails. <h2 class="mb-2 mt-4 [.has-inline-images_&]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base first:mt-0">Step 5: Update QuickBooks Software (Desktop Users)</h2> <ol class="marker:text-quiet list-decimal"> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Open QuickBooks Desktop. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Go to Help > Update QuickBooks Desktop > Update Now. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Install the most recent updates and restart the software. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Try reconnecting your bank feed through Banking > Bank Feeds > Set Up Bank Feeds for an Account. </li> </ol> <h2 id="prevention-tips-for-future-bank-sync-errors" class="mb-2 mt-4 [.has-inline-images_&]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base visRefresh2026Fonts:text-lg first:mt-0 md:text-lg [hr+&]:mt-4">Prevention Tips for Future Bank Sync Errors</h2> Keep QuickBooks updated regularly (Online and Desktop versions). Log in to your bank’s website periodically to refresh account access. Reconnect your bank when you update credentials or passwords. Clear cache monthly for better bank feed performance. Download bank data manually if you notice recurring bank sync warnings. <h2 id="related-tasks-you-can-perform" class="mb-2 mt-4 [.has-inline-images_&]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base visRefresh2026Fonts:text-lg first:mt-0 md:text-lg [hr+&]:mt-4">Related Tasks You Can Perform</h2> <ul class="marker:text-quiet list-disc"> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Learn how to add old transactions to QuickBooks Online using CSV imports. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Understand how to post bank transactions in QuickBooks Online. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Discover whether QuickBooks allows you to upload online banking files from your client’s bank accounts – true or false (It’s true — with user authorization). </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Explore QBO import bank transactions template file formats for smoother uploads. </li> <li class="py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&>p]:pt-0 [&>p]:mb-2 [&>p]:my-0"> Find out how to upload PDF bank statements to QuickBooks Online when automatic sync is unavailable. </li> </ul> <h2 id="frequently-asked-questions-faq" class="mb-2 mt-4 [.has-inline-images_&]:clear-end font-sans visRefresh2026AnswerSerif:font-editorial font-semimedium visRefresh2026Fonts:font-bold text-base visRefresh2026Fonts:text-lg first:mt-0 md:text-lg [hr+&]:mt-4">Frequently Asked Questions</h2> 1. What does Error 155 mean on QuickBooks Online? Error 155 indicates QuickBooks failed to establish a secure connection with your bank due to server or login issues. 2. Can I still import transactions manually if Bank Error 155 appears? Yes. You can manually download and upload your transaction file (.CSV or .QBO) to QuickBooks Online. 3. Is this error related to QuickBooks Online banking error 102 or 103? Yes, they’re similar. All these errors originate from connection interruptions between QuickBooks and your bank. 4. Why does the error persist even after updating QuickBooks? If your bank enforces MFA or has changed its online security, you may need to reauthorize QuickBooks through your banking portal. 5. Who can I contact if none of the fixes work? You can reach certified QuickBooks specialists for immediate guidance at +1-866-513-4656. QuickBooks Online Bank Error 155 can block your accounting flow, but the fixes above can help you restore full functionality quickly. For continued troubleshooting or if you can’t reconnect after performing these steps, contact experienced QuickBooks professionals at +1-866-513-4656 for tailored assistance.