Hey there, @Meron GG. Happy to chime in on how you can locate your written off Invoices.

With Write Off Invoices, QuickBooks applies discounts to zero out your invoices, then posts them to your write off account. Check your Chart of Accounts for a write off account and view the register or report to locate those written off Invoices.

For more information on the Write Off Invoices feature, check out: Use Write Off Invoices

Please reach out if there's anything else I can do to help, I'm determined to be your number one resource for QuickBooks Online. Thank you for bringing us your questions.