They are interchangeable terms meaning the same thing. They are interchangeable terms. If at all possible, send a copy of your draft budget before it is typed in final form. Finding errors or questions before typing saves everyone time. Be sure to check the guidelines of the agency to which you are submitting.
Some agencies have strict rules.
A. Provide the Grant Development Office with a copy of the guidelines, which state that they will not pay full indirect costs. That portion of indirect costs, which the agency will not pay, may be used for cost sharing. Q. I have more questions.