Alslam alikum,I work for an organization that provides financial allowance for food and accomodation once I leave my assigned duty station.This allwoance is the organization's regulations,and it does not require me to prove whether I spend the money or not.The amount has to be claimed as a whole, i.e. take it all or leave it all.Usually I spend less than the assigned allowance. My Q is does claiming this money constitute Haram action or not?

All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.

It is permissible for you to ask for this allowance as long as you accomplish the mission of that organization, and it is not a condition that your spending on food and accommodation be within the limit of that allowance because the organization did not condition this as it appears from your question.

Allaah Knows best.