Is there a need for Official Receipts for Per Diem?

Good Morning:

I am a xxxxxxx, Field Auditor of a Micro-finance Company for 5 years. We always went out of town for branch audit and got per diem. We are given X amount per diem for meals and lodging expenses and if we can save some out of this, that has always been fine, that was the joy of per diem. We were not asked to return the unused part of the Per Diem.

Recently, we were obliged by the new Accounting Manager to provide for an Official Receipts on how we consumed the total X amount of Per Diem. As a result, all of our liquidation for our last Audit Engagement was put on hold. And the total Cash Advance might be due and demandable from us if we cannot provide a receipts for our total Per Diem.

We would like to know if there is a BIR ruling which requires that Per Diem should be supported with Official Receipts?

Hope you could give us advice immediately.

Thank You.

you should argue that they cannot apply this new policy retroactively.

Thanks Atty...we might get a chance for our last liquidation BUT they are pressing the instruction to provide OR on every single peso of our Per Diem..and this will be take effect on our next Audit engagement..our Audit Manager is also on our side.
If you could provide us BIR ruling about Per Diem or its effect to the Company if it will not be supported with OR. Thank you.