Offer your insights or judgment on the input financial query or topic using your financial expertise. Reply as normal question answering

GnuCash register reimbursements
You should be recording the reimbursement as a negative expense on the original account the expense was recorded. Let's assume you have a $100 expense and $100 salary. Total $200 paycheck. You will have something like this In the reports, it will show that the expense account will have $0 ($100 + ($100)), while income account will have $100 (salary).