Indirect costs — also called Facilities and Administrative (F&A) costs or overhead — are one of the most misunderstood parts of grant budgeting. Here's a clear explanation of what they are, how they work, and how to handle them strategically.
What are indirect costs? Indirect costs are the real costs of operating a research enterprise that can't be attributed to a single project: building maintenance, utilities, library access, HR, compliance staff, and institutional administration. They're real costs — just shared across many grants.
How are they calculated? The federal government negotiates an indirect cost rate with each institution. This rate is applied to a base — often Modified Total Direct Costs (MTDC), which excludes equipment, patient care, tuition, and subcontract costs above $25,000. So if your MTDC is $500,000 and your negotiated rate is 55%, your F&A costs are $275,000.
What this means for you: • Your total budget request = direct costs + indirect costs. • Some funders cap indirect costs (many foundations cap at 10–15%, some NIH mechanisms have caps). • NSF and NIH generally allow negotiated rates without additional caps. • SBIR/STTR Phase I has a 40% cap on indirect costs charged by small businesses.
Strategic considerations: • Don't negotiate your rate below the negotiated rate without institutional approval — you're leaving money on the table that funds your infrastructure. • For foundation grants with caps, the difference between allowed and actual indirect costs may need institutional cost-sharing. • Always check the solicitation for indirect cost rules before budgeting.