How do I fix backgroundtasks High CPU in macOS Tahoe 26.2?

Three approaches in order of safety: (1) Clear the Background Task Queue; (2) Reset the Dispatch Queue. Full Terminal commands and System Settings paths are inside each section.

Is this fix confirmed for macOS Tahoe 26.2?

Yes — verified on macOS Tahoe 26.2. Article is updated when Apple ships a point release that changes the symptom or fix.

How to Fix backgroundtasks High CPU in macOS Tahoe 26.2

Symptom: Your Mac fans are spinning loudly, and Activity Monitor shows a process named "backgroundtasks" using 100%+ CPU on macOS Tahoe.

TL;DR fix

Start with Fix 1: Clear the Background Task Queue. If the issue persists after that, try Fix 2: Reset the Dispatch Queue. Full Terminal commands and step-by-step instructions are in each section below.

Why this happens

The backgroundtasks daemon in Tahoe is responsible for indexing new AI features and system maintenance. It can get stuck in a loop if it encounters a corrupted file in the temporary system folders.

Recommended Troubleshooting Tool

Before proceeding with manual fixes, we recommend using CleanMyMac X. Quickly identify high CPU apps and optimize system memory with one click.

Fix 1: Clear the Background Task Queue

Open Terminal.
Run the following command to clear the pending task metadata:

sudo rm -rf /var/folders/*/*/*/com.apple.backgroundtasks

Restart your Mac immediately.

Fix 2: Reset the Dispatch Queue

If the CPU usage returns, reset the job scheduler:

In Terminal, type:

sudo launchctl kickstart -k system/com.apple.backgroundtasks

Monitor Activity Monitor for 5 minutes to ensure the process settles down.

Recommended Tool: iStat Menus

To keep an eye on hidden processes like this and get alerts before your Mac overheats, use iStat Menus. it provides detailed CPU per-core breakdowns and fan control.

Tested and documented by the MacDebug team — about MacDebug. See also Photoshop & Adobe Apps Crashing on macOS Tahoe, Fix macOS "No AirPlay Found", or browse all guides on macdebug.