Originally Posted by
Often1
If OP's employer can't get its act together on timely reimbursements, it's entirely appropriate for the employer to pick up the interest. That need not be calculated to the penny, but it's easy enough to come up with a simple formula which brings the calculation close enough.
Alternatively, it may be that the interest is pretty minimal and not worth fighting about with the employer.
All of our employees have at least one, no-fee personal card that is dedicated only to work expenses. As a group, we earn thousands of dollars every year in award points when we charge spending to our personal cards. It's a little perk for the work of purchasing items for the company.
I'd certainly ask your supervisor or payables person to confirm, even verbally, that the company will reimburse all costs. Put it on them to say what they won't cover.
If they have a different idea of meal costs or travel or out-of-pocket expenses, it's better to know that now than later.
If OP carries a balance on the primary card, this would be a good time to get another no-fee card, with a modest limit, that can be used.