Hi there, @accplus-us.
Welcome to the Community family. I can assist you with voiding checks in QuickBooks Online.
Here's how:
- Select the Plus icon (+) at the top.
- Under Vendors, choose Check.
- The following fields must be completed (the other fields are optional):
- Bank Account
- Check #
- Payment date
- Account
- At the bottom, select More and Void.
- When "Are you sure you want to void this?" prompts, select Yes.
I've attached some screenshots below to visualize the steps:
That should do it.
Please let me know if I can be of additional assistance. I'm always here to help. Have a fantastic weekend!