How to Build a Grant Budget From Scratch (With a Complete Example)
GrantCopilot Team
September 12, 2026
11 min read
TL;DR
Build the budget from the work plan, not the funder's cap. Price personnel by FTE and add fringe, then list each non-personnel cost with its quantity and unit price. Apply your negotiated indirect rate, or the 15 percent de minimis rate if you do not have one. Check that every number in the budget appears somewhere in the narrative, and that every activity in the narrative has a cost. Then write a justification that explains how each line was calculated.
Most grant budgets are built backwards. The applicant sees a $150,000 ceiling in the funding announcement, decides to ask for $150,000, and then invents line items until the total lands there. Reviewers can tell. The personnel line does not match the staffing described in the narrative, travel is a round number with no trips behind it, and the indirect rate is whatever made the math work. A budget that wins funding is built forwards. It starts from the work you actually plan to do, prices each piece, and only then compares the total to the funder's limits. This guide walks through that process with real numbers, ending in a complete budget for a nonprofit program grant under a $150,000 cap that you can adapt for your own proposal.
Step 1: Start From the Work Plan, Not the Funding Cap
Before you open a spreadsheet, list what the project will actually do: who does the work, for how many hours or months, with what materials, in what locations, for how many participants. Every one of those facts becomes a cost driver.
A useful exercise is to walk through one month of the funded project and write down everything that costs money. A program coordinator's time. The mileage to reach three partner sites. Printed workbooks for 40 participants. The evaluator's quarterly check-in. The share of your office lease that supports this work. If an activity in your narrative does not appear on that list, either the narrative is promising work you have not priced, or the list is incomplete.
Only after the list is complete should you compare the total to the funder's range. If you are far under the cap, that is fine. Funders would rather see a right-sized $92,000 request than an inflated $150,000 one. If you are over, scale the scope down honestly rather than shaving each line by 20 percent, which produces a budget that cannot deliver the narrative.
Step 2: Personnel and Fringe Benefits
Personnel is the largest line in most program and research budgets, and it is where reviewers look first for signs of magical thinking. The standard way to express effort is full-time equivalent, or FTE. A staff member who spends half their time on the project is 0.5 FTE.
The math for each person is simple: annual salary multiplied by FTE multiplied by the number of years. A program manager earning $68,000 at 0.5 FTE for one year costs $34,000 in salary. Then add fringe benefits, which cover payroll taxes, health insurance, retirement contributions, and paid leave. Most organizations have a single fringe rate they apply to all salaries. If yours is 28 percent, the program manager's fringe is $9,520, for a total personnel cost of $43,520.
Two common mistakes here. First, underpricing the roles that keep the project compliant: the evaluator, the data manager, the person who files reports. Reviewers in 2026 are increasingly skeptical of budgets that show 0.05 FTE for evaluation on a $150,000 project. Second, forgetting that a hire takes time. If a new position starts in month three, budget nine or ten months of salary in year one, not twelve, and say so in the justification.
- Salary formula: annual salary x FTE x years. Round to the nearest dollar and show the formula in the justification.
- Fringe formula: salary x your organization's fringe rate. Use the same rate you use in your own books.
- Effort, not hours: funders think in FTE or person-months. Convert hourly estimates before you enter them.
- Name the role, not always the person: a position that is not yet hired can be listed as To Be Determined with a planned salary.
- Check the salary cap: NIH, for example, limits the salary rate you can charge to the current Executive Level II cap. Budget at the capped rate if a salary exceeds it.
Step 3: Non-Personnel Lines
After personnel, walk through the standard federal cost categories. Even foundation funders that do not use these labels will recognize the structure, and it forces you to account for everything.
- Travel: price each trip separately: purpose, destination, number of travelers, airfare or mileage, lodging nights, and per diem. Use the federal GSA per diem rates for the destination; reviewers know them.
- Equipment: items with a useful life over one year and a unit cost above your organization's capitalization threshold. The federal definition rose to $10,000 per unit under the 2024 Uniform Guidance revision, but many institutions keep a $5,000 threshold in their own policy. Use your organization's threshold, and expect to justify why each item is needed and not already available.
- Supplies: consumables and lower-cost items below the equipment threshold. Group by type (program supplies, office supplies, software licenses) and show the estimate basis, such as $45 per participant workbook x 40 participants.
- Contractual: consultants and subawards. For consultants, give the daily or hourly rate, the number of days, and the deliverable. For subawards to partner organizations, attach or summarize the partner's own budget.
- Participant support: stipends, travel, and registration costs paid to or on behalf of participants, as opposed to staff. Many federal funders exclude this line from indirect costs, so keep it separate.
- Other direct costs: anything that does not fit above: printing, communications, space rental for events, publication fees, evaluation tools. Avoid a large unexplained Miscellaneous line.
Step 4: Indirect Costs
Indirect costs, also called overhead or facilities and administrative costs, are the real expenses that support the project but cannot be assigned to one line: rent, utilities, accounting, insurance, IT, and leadership time. The indirect cost rate is a percentage applied to a base of direct costs.
If your organization has a negotiated indirect cost rate agreement (NICRA) with a federal agency, use that rate and its base exactly as written. If you do not, any federal award lets you charge the de minimis rate, which the 2024 revision of the Uniform Guidance raised from 10 percent to 15 percent of modified total direct costs (MTDC). You do not need approval or documentation to elect it.
MTDC is not the whole direct budget. It excludes equipment, capital expenditures, participant support costs, rental costs, tuition remission, scholarships, and the portion of each subaward above $50,000. Applying 15 percent to your full direct total instead of the MTDC base is one of the most common arithmetic errors in nonprofit budgets, and one of the easiest for a reviewer to catch. For a fuller treatment of what belongs where, see our guide to direct versus indirect costs.
Private foundations often cap indirect costs at 10 or 15 percent of total costs, or disallow them entirely. When that happens, do not hide overhead inside direct lines. Either accept the cap and note the unrecovered amount as your organization's contribution, or decide the grant is not worth pursuing.
A Complete Nonprofit Program Budget Under a $150,000 Cap
Here is a full one-year budget for a community health navigation program at a nonprofit with a 28 percent fringe rate and no negotiated indirect rate, so it uses the 15 percent de minimis rate on MTDC. The funder's cap is $150,000. Every line traces back to an activity in the narrative, and the first pass comes in over the cap on purpose, to show how to trim honestly.
- Program Director (0.20 FTE, $85,000 salary): $17,000 salary + $4,760 fringe = $21,760
- Health Navigator, full time ($52,000 salary, starts month 1): $52,000 salary + $14,560 fringe = $66,560
- Data and Evaluation Coordinator (0.25 FTE, $60,000 salary): $15,000 salary + $4,200 fringe = $19,200
- Personnel subtotal: $107,520
- Travel: local mileage for navigator site visits, 600 miles per month x 12 months x $0.70 = $5,040; one two-person trip to the state health equity conference, $2,400. Travel subtotal: $7,440
- Supplies: participant education materials, 200 participants x $18 = $3,600; tablet and hotspot for field intake, $900; program software licenses, $1,200. Supplies subtotal: $5,700
- Contractual: external evaluator, 12 days x $650 = $7,800
- Participant support: transportation vouchers, 200 participants x $20 = $4,000 (excluded from MTDC)
- Other direct: printing and outreach materials, $1,500; interpretation services, 30 hours x $65 = $1,950. Other subtotal: $3,450
- Total direct costs: $135,910
- MTDC base: $135,910 minus $4,000 participant support = $131,910
- Indirect at 15 percent de minimis: $19,787
- Total project cost, first pass: $155,697, which is $5,697 over the cap
- Trim by scope, not by shaving: start the navigator in month 2 (11 months: $47,667 salary + $13,347 fringe = $61,014, saving $5,546), send one traveler to the conference ($1,200, saving $1,200), and cut the evaluator to 9 days ($5,850, saving $1,950). Direct costs fall to $127,214.
- Recalculated: MTDC $123,214, indirect at 15 percent $18,482. Final total: $145,696, under the cap with room noted in the narrative rather than padded back to the ceiling.
Step 5: Write the Budget Narrative
The numbers alone are not enough. Nearly every funder requires a budget narrative, also called a budget justification, that explains each line. Its job is to answer three questions for every cost: what is it, how did you calculate it, and why does the project need it.
Keep it in the same order as the budget form, use the same labels, and show your arithmetic. "Health Navigator, 1.0 FTE at $52,000 for 12 months. This position conducts intake, accompanies participants to appointments, and maintains the case log described in Activity 2." That sentence does more for a reviewer than three paragraphs about the importance of navigation.
We have a full set of before-and-after examples for every line item in our grant budget justification examples guide, and an example of a research budget built the same way in our NSF EAGER budget example.
Five Budget Mistakes Reviewers Flag Immediately
Program officers and panel reviewers read hundreds of budgets. These are the patterns that make them stop trusting the rest of the proposal.
- Underpriced compliance and evaluation. A $150,000 project with $500 for evaluation tells the reviewer you do not plan to measure anything.
- Timelines that ignore hiring and procurement. Twelve months of salary for a position that will realistically start in month three, or equipment purchased in month one that takes a quarter to procure.
- Totals that disagree with the narrative. The narrative says four partner sites; the travel line supports two. The narrative promises 300 participants; supplies are priced for 150.
- Round numbers with no basis. $5,000 for travel, $10,000 for supplies. Reviewers read these as placeholders, because they usually are.
- Forgotten fringe or misapplied indirect. Salaries listed without fringe understate personnel by a quarter or more. Indirect applied to the full direct total instead of MTDC overstates the request and signals unfamiliarity with the rules.
Adapting This for Research and Federal Proposals
The same process applies to research budgets, with a few differences in emphasis. Federal research proposals to NIH and NSF use standardized budget forms with these same categories. NIH applications requesting $250,000 or less in direct costs per year use a simplified modular format, which our guide to NIH modular versus detailed budgets explains in full. NSF proposals follow the NSF standard grant budget structure and prohibit voluntary committed cost sharing, so do not offer match unless the solicitation requires it.
Where a funder does require or encourage a match, the rules for what counts and how to document it are covered in our cost share and matching funds guide.
Frequently Asked Questions
There is no target percentage. Use your negotiated rate if you have one. If you do not, federal awards allow the 15 percent de minimis rate applied to modified total direct costs, not to the whole budget. Foundations often cap indirect costs at 10 to 15 percent of total costs, or exclude them, so check each funder's policy before you apply.
Not for the same hours. A person's total effort across all funding sources cannot exceed 100 percent, and the same hours cannot be charged to two funders. You can budget a different portion of that person's time on the new project, as long as the combined FTE across all sources stays at or below 1.0.
Detailed enough that a reviewer can reproduce your number. For every line, show the quantity, the unit cost, and the formula: 40 participants x $18 per workbook, or 12 evaluator days x $650. Group small similar items, but never present a large round number without showing how it was built.
Most funders allow you to move money between approved budget lines up to a threshold, often 10 percent of the total award, without prior approval. Larger changes, new lines, or changes to scope usually require written approval from the program officer. Ask before you spend, and keep a record of every rebudget decision.
A grant budget is a promise about how you will spend someone else's money. Build it from the work plan, price each piece with a visible formula, apply the right indirect rate to the right base, and make sure the narrative and the numbers tell the same story. Do that, and the budget stops being the section that gets your proposal sent back and becomes the section that convinces a reviewer you can actually deliver. If you want help turning a work plan into a budget and narrative, GrantCopilot's budget templates handle the FTE and fringe math, categorize direct and indirect costs, and draft the justification for each line.
Topics
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