QuickBooks Error 15240: Payroll Update Fails on Unsupported Versions

Last reviewed 2026-07-04 3 min read

Troubleshooting QuickBooks Desktop Error 15240 and the 15xxx update family. Learn why payroll updates fail and how to freeze your install for long-term off

When QuickBooks Desktop suddenly displays Error 15240 during a payroll or software update, it usually means the program failed to download or apply a critical patch. The notification typically reads something like "The payroll update did not complete successfully." While this seems like a simple network glitch, it is frequently a sign of a deeper conflict—especially if you are running an older, unsupported version of QuickBooks.

Understanding the 15xxx Update Error Family

Error 15240 belongs to the QuickBooks 15xxx error family. This group of errors covers failures related to downloading and installing updates for both the QuickBooks application itself and its payroll tax tables. If you are seeing a slightly different code—such as 15241, 15242, 15243, or 15270—the underlying causes and solutions are essentially the same. These errors indicate that the update process was interrupted, blocked, or unable to verify the files it downloaded.

Common Causes of Error 15240

Several factors can trigger this update failure:

Digital Signature Certificate issues: QuickBooks relies on trusted certificates to install updates. If the certificate is blocked or outdated, the installation halts.
Incorrect system settings: The Windows date and time settings must be accurate; if they are not, security certificates will fail to validate.
Firewall or antivirus interference: Security software often misidentifies downloaded update files as threats and quarantines them before they can install.
End of Intuit's support: For discontinued versions of QuickBooks, Intuit has simply stopped generating these updates entirely.

The Durable Fix: Stop the Update Cycle

If you are running a version of QuickBooks Desktop that Intuit no longer supports, these updates have permanently ended. Chasing the update or trying to force the software to download a patch will only result in a loop of 15xxx errors.

The most durable, long-term solution is to stop chasing the update, freeze your current installation, and switch to manual alternatives. By turning off automatic updates, you prevent the software from constantly searching for patches that no longer exist. You can keep your books perfectly balanced by manually entering your tax tables, processing payroll by hand, and importing your bank transactions directly via QBO, CSV, or IIF files instead of relying on live feeds.

Step-by-Step Troubleshooting for Supported Installs

If you are running a currently supported version of QuickBooks—or if you simply want to clear the error before freezing an older install—try these self-service steps:

Verify your date and time: Right-click the clock in your Windows taskbar and select "Adjust date/time." Ensure the time zone is correct and toggle "Set time automatically" to On.
Run QuickBooks as Administrator: Close QuickBooks completely. Right-click the QuickBooks desktop icon and select "Run as Administrator." Try manually downloading the update again from the Help menu.
Configure your antivirus: Open your security software and add the QuickBooks installation directory (usually located in C:\Program Files\Intuit) to your firewall and antivirus exception lists.
Update your Digital Signatures: Navigate to your QuickBooks folder, right-click the QBW32.exe file, and select Properties. Go to the Digital Signatures tab, select Intuit from the list, click Details, and then click Install Certificate to follow the prompts.

When the Company File Is Damaged

Occasionally, an update fails because the company file itself is too corrupted to accept new data or changes to the payroll setup. If you have ruled out system settings and security interference, and QuickBooks is behaving erratically outside of the update process, your .qbw file may be compromised. If you suspect file damage is blocking your operations, you may need to repair your damaged QuickBooks company file to restore stability without upgrading your software.