Indirect costs are shared organizational costs that support grant-funded work but are not easily tied to one specific task. Examples include administration, accounting, rent, utilities, purchasing, systems, and general operations needed to run the project.
Indirect costs are one of the most misunderstood parts of grant budgeting. Founders often focus on personnel, materials, subcontractors, and equipment because those costs feel close to the work. But a grant also uses organizational capacity: finance, compliance, management systems, workspace, insurance, purchasing, and general administration. Indirect costs are the mechanism that recovers some of those shared costs when the funder allows it.
The rules matter because indirect costs are not just a percentage you add at the end. The allowable rate, base, exclusions, and award-specific limitations can change the real project budget. A proposal that uses the wrong base, applies indirect costs to excluded categories, or ignores a funder cap can create compliance risk or underfund the company.
Use this guide with the grant budget template, grant budget justification, grant reporting requirements, and startup grant application process. Indirect costs affect the application, award setup, invoicing, and reporting.
Quick answer: indirect cost rate basics
A grant indirect cost rate is usually a percentage applied to an approved cost base. For many US federal grants, organizations either use a negotiated indirect cost rate agreement, sometimes called a NICRA, or elect a de minimis rate when eligible. Under current Uniform Guidance language, recipients and subrecipients without a current federal negotiated indirect cost rate may elect a de minimis rate of up to 15% of modified total direct costs, unless the award or statute says otherwise.
The phrase modified total direct costs, or MTDC, is important. You do not simply multiply the rate by the entire budget. Certain categories may be excluded from the base, such as equipment and capital expenditures, participant support costs, and the portion of each subaward above the applicable threshold. The exact treatment depends on the award terms and current rules.
- Rate is not the whole story. A 15% rate on MTDC may recover less than a lower-looking rate applied to a broader base.
- Award terms control the final answer. Always check the solicitation, budget instructions, award letter, and any agency-specific guidance.
- Consistency matters. Costs should not be charged directly in one place and indirectly somewhere else without a defensible cost policy.
- Indirect recovery is still project money. If the funder caps indirect costs, the project may need a smaller scope, more match, or different cost structure.
Direct vs indirect costs
Direct costs are costs that can be identified with a specific project, activity, or deliverable. Indirect costs support the organization and multiple activities at once. The distinction is not about whether the cost is important. It is about whether the cost can be assigned to the grant-funded project with reasonable precision and consistency.
| Cost | Usually direct when | Usually indirect when |
|---|---|---|
| Personnel | An engineer, researcher, project manager, or evaluator works directly on grant tasks. | A finance, HR, or executive function supports many projects generally. |
| Rent and facilities | A dedicated facility is used only for the funded project and allowed by the funder. | General office or facility costs support the organization as a whole. |
| Software and systems | A project-specific tool, dataset, cloud instance, or license is necessary for grant tasks. | General accounting, HR, email, IT, or admin systems support all operations. |
| Supplies and materials | Prototype components, lab materials, or test consumables are used for the project. | Office supplies or shared operating materials cannot be assigned cleanly. |
| Consultants | A named consultant performs a project task or deliverable. | General advisory, admin, or overhead support is part of organizational operations. |
| Compliance | A required project-specific safety, regulatory, or data review is budgeted. | General compliance infrastructure supports multiple projects. |
| Utilities | Rarely direct unless separately metered and allowed. | General utilities usually support facilities broadly. |
The direct-versus-indirect decision should be made before the budget is final. If the team treats a cost as direct in the proposal, the budget narrative should explain why it is allocable to the project. If the cost is recovered through the indirect rate, do not describe it as a separate direct line item unless the rules and cost policy support that treatment.
Negotiated rate, de minimis rate, or funder cap
There are three practical questions. Does the organization already have a negotiated indirect cost rate agreement? If not, is it eligible to use a de minimis rate? And does the funder or programme impose a lower cap or special base? The answer determines how indirect costs should be calculated and explained.
| Path | When it applies | What to check | Founder implication |
|---|---|---|---|
| Negotiated indirect cost rate | The organization has a current federal negotiated rate or must negotiate one. | Rate type, period, base, cognizant agency, exclusions, award limitations. | More administrative work, but potentially more accurate recovery of real overhead. |
| De minimis rate | The organization has no current federal negotiated indirect cost rate and is eligible under the rules. | Current Uniform Guidance, award terms, base, consistency requirement, subrecipient treatment. | Simpler for many startups and nonprofits, but may under-recover true overhead. |
| Funder cap | The solicitation, statute, or award imposes a maximum indirect cost recovery. | Cap percentage, base, whether cap applies to applicant only or partners too. | May require scope adjustment because unrecovered overhead still exists. |
| No indirect recovery | Some awards disallow or severely limit indirect costs. | Budget instructions, cost-share rules, internal capacity. | The organization may subsidize administration unless costs can be direct and allowable. |
| Subaward-specific treatment | The applicant includes partners or subrecipients. | Which portion of each subaward is in the base and which rate each entity uses. | Subrecipient budgets can materially change MTDC and total request. |
Older articles and templates may still refer to a 10% de minimis rate. For current US federal grants, check the current Uniform Guidance and agency implementation guidance. As of this article date, eCFR 2 CFR 200.414 describes a de minimis rate of up to 15% of MTDC for eligible recipients and subrecipients without a current federal negotiated rate. This is exactly the kind of rule where current official sources should override old examples.
MTDC worked example
Modified total direct costs are the base to which many indirect cost rates are applied. The base is not always the same as total direct costs. That distinction can materially change the indirect cost amount.
| Budget category | Amount | Included in MTDC? | Reason |
|---|---|---|---|
| Personnel and fringe | $180,000 | Yes | Project staff effort is usually part of the direct cost base. |
| Materials and supplies | $45,000 | Yes | Prototype materials and consumables are generally direct project costs. |
| Travel | $8,000 | Yes | Project travel is generally included unless award terms differ. |
| Equipment | $60,000 | No | Equipment and capital expenditures are commonly excluded from MTDC. |
| Subaward to testing lab | $90,000 | Partly | Only the applicable first portion of each subaward is included; current federal guidance uses a higher threshold than old examples. |
| Participant support | $12,000 | No | Participant support costs are commonly excluded. |
| Total direct costs | $395,000 | Not the base | The base must be modified before applying the rate. |
Assume the eligible base after exclusions is $283,000. A 15% de minimis rate on that MTDC base would equal $42,450. If the applicant mistakenly applied 15% to the full $395,000, the indirect cost line would be $59,250, which may be unallowable. If the applicant excluded too much, the project may under-recover overhead. The calculation is not hard, but the base must be right.
Identify total direct costs, remove excluded categories under the applicable rules and award terms, apply the approved indirect cost rate to the remaining modified total direct cost base, and document the calculation in the budget file.
How to explain indirect costs in the budget narrative
The budget narrative does not need a long essay about overhead. It needs a clear statement of the rate, base, authority, and calculation. If the organization has a negotiated rate, cite the agreement and apply the approved base. If the organization uses de minimis, state eligibility and apply the rate consistently. If a cap applies, say how the cap was applied.
| Scenario | Weak narrative | Stronger narrative |
|---|---|---|
| De minimis | Indirect costs are included at 15%. | Indirect costs are calculated at 15% of modified total direct costs under the de minimis approach for eligible recipients without a current federal negotiated indirect cost rate, subject to award terms. |
| Negotiated rate | We use our approved overhead rate. | Indirect costs are calculated using the organization's current negotiated indirect cost rate agreement, applied to the approved base and period covered by the agreement. |
| Funder cap | Indirect costs are capped. | The solicitation limits indirect cost recovery to the stated cap; the budget applies that cap to the eligible base and does not request unrecoverable overhead. |
| Subaward | Partner indirect costs are included. | The subrecipient budget applies its own approved rate or allowed approach, and the prime applicant applies indirect costs to the eligible portion of the subaward base only. |
| No recovery | No indirect costs requested. | The organization is not requesting indirect cost recovery under this award; administrative support will be covered outside the grant or included only where direct and allowable. |
For a detailed cost explanation, pair this with the grant budget narrative example. The indirect cost article explains the rate and base. The budget narrative explains how the calculation appears in a funder-facing proposal.
Startup and nonprofit decision points
Startups and newer nonprofits often underestimate indirect costs because they are used to operating lean. But grant-funded work still consumes finance time, procurement time, executive oversight, contract management, HR support, insurance, workspace, and systems. If the grant does not recover those costs, the organization absorbs them.
- Do not ignore overhead to make the budget look lean. An under-budgeted project can look fragile if reviewers believe the team lacks administrative capacity.
- Do not use indirect costs as a margin substitute. Indirect recovery is tied to organizational support costs, not profit.
- Do not negotiate policy during proposal week. Decide early whether the organization has a rate, will use de minimis, or needs finance/legal support.
- Do not forget partners. Subrecipients may have their own rates, bases, and documentation needs.
- Do not assume every programme follows federal defaults. Foundations, state agencies, EU programmes, and corporate grants can have different rules.
The right decision is not always to maximize indirect cost recovery. Sometimes a cap makes the economics unattractive. Sometimes a small project is still worth doing because it creates strategic evidence. Sometimes the company should reduce scope rather than hide overhead. The decision should be explicit because indirect-cost treatment changes the real cost of winning the grant.
Common indirect cost mistakes
Indirect cost errors can create problems before and after award. During review, a wrong calculation can make the budget look careless. During negotiation, it can trigger corrections. During reporting, it can create reimbursement or audit issues. Treat the indirect-cost line as a compliance item, not a filler percentage.
| Mistake | Risk | Fix |
|---|---|---|
| Applying the rate to total direct costs instead of MTDC | Overstates indirect costs and may request unallowable funds. | Build a base-calculation worksheet before finalizing the budget. |
| Using old 10% de minimis language without checking current rules | Creates outdated guidance and possible under-recovery. | Check current eCFR, agency guidance, and award terms. |
| Charging the same cost both directly and indirectly | Double charging and audit risk. | Use a consistent cost policy and document exceptions. |
| Ignoring funder caps | Budget may be reduced or rejected. | Read solicitation instructions before setting the rate. |
| Forgetting subaward exclusions | Wrong base and wrong recovery amount. | Calculate each subaward treatment separately. |
The final check is simple: Can someone reconstruct the indirect cost amount from the budget narrative? If not, the calculation is not ready. The proposal should show the rate, base, exclusions, and authority clearly enough that a grants officer does not need to guess.