Writing a Federal Grant Budget and Budget Justification

A federal grant budget has two parts: the budget form, usually the SF-424A, which shows totals by cost category, and the budget justification, a narrative that explains how you calculated each line and why it is needed. Every cost must pass the allowability tests in 2 CFR 200.403: necessary, reasonable, allocable to the project, consistently treated and adequately documented. Reviewers should be able to recalculate every number from your justification.

This guide explains the standard cost categories, the federal cost rules that apply to most grants, how to write each section of the justification, and the mistakes that draw reviewer questions. The rules come from the Uniform Guidance at 2 CFR Part 200. Your funding notice can add limits of its own, so read its budget section first.

Start with the funding notice

Before building anything, find the budget instructions in the notice of funding opportunity. They usually tell you:

• The award ceiling and floor, and whether the amount is per year or for the whole project.
• The period of performance, and whether you need a budget for each year.
• Which budget form to use. Many agencies use the SF-424A, while research agencies often use their own forms.
• Cost limits, such as a cap on indirect costs, a ban on certain costs, or limits on travel or equipment.
• Whether cost sharing or matching is required, and in what amount.

If the notice provides its own budget form or categories, follow those over the general guidance below. Our guide to reading a NOFO shows where these details usually sit.

The standard cost categories

The SF-424A groups costs by object class category. Section B of the form lists them in this order, and the form instructions ask applicants to break costs down across these lines:

1. Personnel: salaries and wages of your own employees who work on the project.
2. Fringe benefits: benefits tied to those salaries, such as payroll taxes, health insurance and retirement contributions.
3. Travel: trips by your own staff needed for the project.
4. Equipment: items that meet the federal equipment definition, explained below.
5. Supplies: materials and items below the equipment threshold, including most computers and software.
6. Contractual: subawards to partners and contracts with vendors.
7. Construction: only when the program allows construction.
8. Other: costs that fit nowhere else, such as participant support, printing or rent where allowed.
9. Indirect charges: costs that support the whole organization, charged at your negotiated rate or the de minimis rate.

The detail in your justification must add up to the totals on the form for each line. Mismatches between the form and the justification are one of the first things reviewers and grants staff notice.

The cost rules that apply to most federal grants

2 CFR 200.403 sets the basic factors for whether a cost is allowable. In plain terms, a cost must:

• Be necessary and reasonable for the project, and allocable to it, meaning it benefits this award in proportion to what you charge.
• Conform to limits in the cost principles or the award terms.
• Be consistent with policies that apply to your other activities, not just federally funded ones.
• Be treated consistently: you cannot charge a cost directly to the award if a similar cost for the same purpose is treated as indirect.
• Follow generally accepted accounting principles, with exceptions for state, local and tribal governments.
• Not be counted as cost share on another federal award.
• Be adequately documented.

Subpart E of 2 CFR 200 then gives specific rules for many cost types, such as compensation, travel, entertainment and alcohol, which are generally unallowable. When a cost seems unusual, look it up in Subpart E before you include it.

Writing the justification, line by line

A strong justification uses the same pattern for every line: what it is, how you calculated it, and why the project needs it. A simple formula of quantity times rate, with the basis for the rate, works for almost every category.

Personnel

List each position, the person's name if known, their annual salary, the percent of time or number of hours on the project, and the resulting cost. Then describe their role in one or two sentences that connect to the narrative. For example: "Project Director, 25 percent effort, annual salary of $80,000, total $20,000 in Year 1. Leads the training program described in Section 3 and supervises the two coordinators." Use the salary you actually pay. Rates should match your payroll records, because 2 CFR 200 requires compensation charges to be supported.

Fringe benefits

Show the fringe rate and the base it applies to. If you have a federally negotiated fringe rate, use it. If not, show how you built your rate from actual benefit costs. Apply the rate only to salaries in the personnel line, and make sure the same rate appears everywhere in the budget.

Travel

For each trip, list the purpose, destination if known, number of travelers, number of days, and the cost of airfare, lodging, meals and local transport. Many organizations use federal per diem rates as a reasonableness check. Explain why each trip is needed for the project. Conference travel is easier to justify when the project shares results there.

Equipment

2 CFR 200.1 defines equipment as property with a per-unit acquisition cost that equals or exceeds the lesser of your own capitalization level for financial statements or $10,000. If your capitalization level is lower, your level applies. Anything under the threshold is a supply. For each equipment item, give the cost per unit, the quantity, and why the project needs it rather than renting or using existing equipment.

Supplies

Group supplies into sensible categories, such as laboratory supplies, training materials or computers, and show how you estimated each amount. A short note on how you priced items, for example from a vendor quote or past purchases, helps establish that costs are reasonable.

Contractual

Separate subawards from contracts. A subaward goes to a partner that carries out part of the project and makes programmatic decisions. A contract buys goods or services from a vendor. For each subaward, include a short scope of work and its own budget. For contracts, describe what you are buying and how you will select the vendor under your procurement procedures.

Other

Itemize everything in this line. Participant support costs, such as stipends or travel for trainees who are not your employees, often belong here, and they are excluded from the base for indirect costs. Label them clearly.

Indirect costs

State the rate you are using, the base it applies to, and whether it is a negotiated rate or the de minimis rate. If you have a current negotiated rate agreement, use it and keep a copy ready. If you do not, 2 CFR 200.414(f) lets you elect a de minimis rate of up to 15 percent of modified total direct costs. Our guide to indirect costs and the de minimis rate explains the base and how to calculate it.

Cost sharing and matching

Some programs require you to contribute part of the project cost yourself. The notice states the amount, usually as a percentage. Cost share must meet the same allowability rules as federal costs, must be documented, and cannot be counted as cost share on another federal award. Show it in the budget the way the notice asks, often as a separate column. If the notice does not require cost sharing, think carefully before offering it, because whatever you commit becomes a condition of the award.

Common mistakes reviewers notice

• Totals that do not match. The justification, the budget form and any narrative references must agree to the dollar.
• Unexplained round numbers. "Supplies: $10,000" with no detail suggests guessing.
• Costs with no link to the narrative. If an activity is not in the project description, reviewers will question why you are paying for it.
• Equipment that is really supplies. Laptops under your capitalization level are usually supplies.
• Indirect costs on the wrong base. Charging the rate on equipment or participant support costs inflates the total.
• Ignoring program limits. Some programs cap indirect costs or ban specific costs. A budget that ignores them signals that the notice was not read.
• Year-to-year jumps without explanation. If costs rise in Year 2, explain why, for example a cost-of-living increase or a new activity.

A practical workflow

1. List the project activities from your narrative, in order.
2. For each activity, list who does it, what they need and where they go.
3. Turn that list into lines in each category, using quantity times rate.
4. Apply fringe and indirect rates on the correct bases.
5. Compare the total to the award ceiling and adjust scope, not quality, if you are over.
6. Write the justification line by line, then enter totals on the budget form.
7. Have someone outside the writing team recalculate every line.

Our Grant Budget and Indirect Cost Calculator helps with steps 3 to 5, including the MTDC base. It is a planning aid only. Your award terms and the cited regulations control.

Multi-year budgets

If the project runs for more than one year, most notices ask for a budget for each year. Build each year from the activities planned for that year rather than copying Year 1 forward. Show any annual salary increases at a consistent rate and explain the basis. Make sure the totals across all years match the total request on the application forms.