Resolving QuickBooks Error 15240: A Comprehensive Troubleshooting Guide

QuickBooks Error 15240 is an error code that commonly occurs when updating QuickBooks or downloading payroll updates. This error can prevent users from accessing the latest payroll tax tables and other crucial updates, causing disruption in payroll processing and overall software functionality. Resolving Error 15240 promptly is important to ensure accurate and up-to-date financial management. In this comprehensive guide, we will provide detailed troubleshooting steps to resolve QuickBooks Error 15240 and restore seamless update capabilities in QuickBooks.

Causes of QuickBooks Error 15240: QuickBooks Error 15240 can be caused by various factors, including:

  1. Incorrect date and time settings: If the date and time settings on your computer are incorrect, it can interfere with the authentication process during QuickBooks updates, triggering Error 15240.
  2. Internet connection issues: Unstable or unreliable internet connectivity can disrupt the downloading of updates in QuickBooks, leading to Error 15240.
  3. Firewall or antivirus settings: Sometimes, the firewall or antivirus settings on your computer may block the QuickBooks update process, resulting in Error 15240.
  4. Incomplete installation of QuickBooks: If QuickBooks is not installed correctly or some files are missing or corrupted, it can cause Error 15240 during updates.

Now, let’s proceed to the troubleshooting steps to resolve QuickBooks Error 15240:

Step 1: Verify Date and Time Settings

  1. Right-click on the date and time display in the bottom-right corner of your desktop.
  2. Select “Adjust date/time” or “Date and time settings.”
  3. Ensure that the date, time, and time zone are set correctly.
  4. If any changes are made, restart your computer and try updating QuickBooks again to see if the error is resolved.

Step 2: Check Internet Connection

  1. Ensure that you have a stable and reliable internet connection.
  2. Test your internet connection by opening a web browser and visiting a few websites.
  3. If there are any issues with the internet connection, contact your internet service provider (ISP) for assistance.
  4. Once the internet connection is stable, try updating QuickBooks again.

Step 3: Adjust Firewall and Antivirus Settings

  1. Temporarily disable the firewall and antivirus software on your computer.
  2. Refer to the documentation or support website of your firewall and antivirus software for instructions on how to disable them.
  3. Attempt to update QuickBooks again.
  4. If the error is resolved, consider adding QuickBooks as an exception in your firewall and antivirus settings or adjusting the settings to allow QuickBooks updates.

Step 4: Perform a Clean Install of QuickBooks

  1. Create a backup of your QuickBooks company file to ensure data safety.
  2. Uninstall QuickBooks from your computer using the Control Panel.
  3. Download the latest version of QuickBooks from the official Intuit website.
  4. Install QuickBooks using the downloaded setup file and follow the on-screen instructions.
  5. After the installation is complete, update QuickBooks to the latest version.
  6. Restart your computer and try updating QuickBooks again to see if the error is resolved.

Step 5: Contact QuickBooks Support If the above steps do not resolve QuickBooks Error 15240, it is recommended to contact QuickBooks Support for further assistance. They can provide personalized guidance and help troubleshoot the issue specific to your QuickBooks installation and update settings.


QuickBooks Error 15240 can impede the smooth updating and downloading of crucial payroll and software updates. By following the troubleshooting steps outlined in this guide, you can effectively resolve Error 15240 and restore seamless update capabilities in QuickBooks. Verify date and time settings, check internet connection, adjust firewall and antivirus settings, perform a clean install of QuickBooks, and seek assistance from QuickBooks Support if needed. With these steps, you can overcome QuickBooks Error 15240 and ensure accurate and up-to-date financial management in QuickBooks.

Leave a Reply

Your email address will not be published.