QuickBooks Payroll Error 15240
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How to Fix QuickBooks Payroll Error=15240
QuickBooks Payroll Update Error · 15xxx Series
How to Fix QuickBooks Payroll Error 15240
QuickBooks displays: "QuickBooks has encountered a problem downloading payroll updates. Please try again." — or the download starts but fails partway through with error 15240.
Error 15240 is a payroll update download failure caused by firewall or connectivity blocking. At QuickFix Bookkeeping, 15240 is distinct from the other 15xxx SSL/certificate errors: 15240 specifically fires when the download connection itself is blocked — the update server is reachable but the download transfer is interrupted or blocked, rather than a certificate chain issue (15270) or SSL cache corruption (15225). The fix targets the download pathway: firewall rules, IE proxy settings, and the download cache.
The QuickFix Bookkeeping Distinction — 15240 vs 15270 vs 15225
15240 — this page
Download blocked or interrupted mid-transfer. Firewall/proxy blocking the payroll download URL. Fix: open firewall port 443 for *.intuit.com, check IE proxy, delete Components folder.
15270
SSL certificate chain missing intermediate certificate. Download never starts because SSL handshake fails. Fix: Windows Update, install missing cert.
15225
SSL session cache corrupted. Download authentication fails. Fix: IE → Content → Clear SSL State.
What Causes QuickBooks Payroll Error 15240?
Firewall Blocking Payroll Download URL
Primary 15240 cause — Windows Firewall or a corporate firewall blocks the specific URL that QB's payroll update downloads from (payroll.intuit.com or download.payroll.intuit.com). Unlike 12029 (general internet blocked), 15240 means general internet works but the specific payroll download endpoint is restricted. Add *.intuit.com and *.payroll.intuit.com to firewall exceptions.
IE Proxy Settings Blocking Download
QB uses Internet Explorer's proxy settings for its download connections. If IE is configured to use a proxy server that doesn't allow access to Intuit's payroll download servers, 15240 appears. Checking and adjusting IE's proxy settings (or using QB's Internet Connection Setup) resolves this.
Corrupted Partial Download in Cache
A previous payroll update download started but was interrupted, leaving a corrupt partial file in QB's Components cache. When QB tries the next download, it attempts to resume from the corrupted partial file and fails with 15240. Deleting the Components folder clears the corrupted partial download.
Antivirus Deep Scanning Download
AV performing deep scanning of the downloaded payroll update files interrupts the download at the file-write stage. QB's download manager times out waiting for the write to complete and reports 15240. Adding the QB payroll download cache folder to AV exclusions resolves this.
Unstable Internet Connection
An intermittently dropping internet connection interrupts the payroll download mid-transfer. QB's download manager reports 15240 when the download was cut off before completing. Testing on a stable wired connection (rather than WiFi) often resolves this.
Outdated QB Version
Older QB versions sometimes have hardcoded payroll download URLs that were deprecated. If the URL QB is trying to download from no longer exists or has moved, 15240 appears because the download endpoint returns an error. Updating QB to the latest release updates the download URLs.
How to Fix QuickBooks Payroll Error 15240
Related QuickBooks Errors
Error 15240 on a Corporate Network After Deleting Components?
Let QuickFix Bookkeeping Restore Your Payroll Downloads.
Persistent 15240 on a corporate network typically means a content filtering appliance or proxy is blocking Intuit's payroll download subdomain — we help identify the specific blocked URL for your IT team to whitelist.
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