SBIR Phase I Budget Calculator
SBIR Phase I Budget Summary
What Is the SBIR Program?
The SBIR program is a U.S. government initiative that funds small businesses working on innovative research and technology. Multiple federal agencies participate in the program, including:
- National Institutes of Health (NIH)
- National Science Foundation (NSF)
- Department of Defense (DoD)
- Department of Energy (DOE)
- NASA
- Environmental Protection Agency (EPA)
- USDA and NOAA
SBIR funding supports early-stage research that has strong commercial potential.
SBIR Funding Phases
The program typically follows three phases:
Phase I – Feasibility Study
- Funding usually up to about $275,765
- Duration typically 6–12 months
- Goal: prove that the technology concept works
Phase II – Research and Development
- Larger funding awards
- Focus on prototype development and testing
Phase III – Commercialization
- No SBIR funding
- Technology enters the private market
The Phase I budget is the first financial plan you must submit with your proposal.
What Is an SBIR Phase I Budget Calculator?
An SBIR Phase I Budget Calculator is an interactive tool that estimates the total funding request for an SBIR proposal.
It calculates:
- Personnel costs
- Fringe benefits
- Direct research expenses
- Subcontractor costs
- Indirect costs (F&A)
- Profit or fee
- Total requested funding
- Compliance with funding caps
Instead of calculating these numbers manually in spreadsheets, the calculator performs the math automatically based on user inputs.
This saves time and reduces errors when preparing a grant application.
Key Inputs in the SBIR Phase I Budget Calculator
The calculator contains several input fields that represent typical grant budget categories.
Each field reflects common requirements from SBIR policy directives and federal grant rules (2 CFR Part 200).
Below is a simple explanation of each input.
1. Funding Agency
The first field selects the federal agency providing the SBIR grant.
Examples include:
- NIH / HHS
- NSF
- DoD / DARPA
- DOE
- NASA
- EPA
- USDA
- NOAA
Each agency has different funding caps and rules, so the calculator automatically adjusts limits when the agency changes.
2. Program Type
This option selects the type of SBIR program:
- Standard SBIR Phase I
- STTR Phase I
- Fast-Track (NSF only)
- Direct to Phase II
Fast-Track programs allow companies to move quickly from Phase I to Phase II funding.
3. Funding Cap
SBIR programs usually follow the Small Business Administration (SBA) funding guidelines.
Common limits include:
| Cap Type | Typical Amount |
|---|---|
| Standard SBIR Phase I | $275,765 |
| SBA Waiver | $325,000 |
| Special Circumstances | $375,000 |
| NSF Fast-Track | $400,000 |
The calculator checks whether your total budget stays within the selected cap.
4. Project Duration
Phase I projects typically last 6 to 12 months.
The duration affects calculations such as:
- Personnel salary allocation
- Monthly burn rate
- Budget pacing
Example:
- $180,000 budget for 6 months → $30,000 monthly burn rate
Personnel Cost Calculations
Personnel costs usually represent the largest portion of an SBIR Phase I budget.
The calculator includes several fields to estimate staffing costs.
Direct Labor (Salaries and Wages)
This field represents the base salary cost for staff working on the project.
Example:
- 2 engineers working part-time
- Salary allocation: $100,000
If not entered manually, the calculator estimates labor using:
Average Salary / 12 × Duration × Number of Staff
Number of FTE Staff
FTE means Full-Time Equivalent employees.
Example:
- 2 researchers working half time = 1 FTE
This input helps estimate realistic labor costs.
Fringe Benefit Rate
Fringe benefits include costs such as:
- Health insurance
- Retirement contributions
- Payroll taxes
- Paid leave
Typical fringe rates range between 25% and 40%.
Example:
Salary: $100,000
Fringe rate: 35%
Fringe cost = $35,000
Non-Personnel Direct Costs
Research projects require more than just salaries.
The calculator includes several categories for other direct expenses.
Materials and Supplies
This includes:
- Laboratory supplies
- Prototype materials
- Chemicals or components
Example:
- Microchips
- Lab reagents
- Mechanical parts
Equipment
Equipment refers to items costing more than $5,000 per unit.
Examples include:
- Specialized lab instruments
- Manufacturing equipment
- Testing systems
Important rule:
Equipment is excluded from MTDC calculations for indirect costs.
Travel Costs
Travel funds may cover:
- Scientific conferences
- Agency meetings
- Collaboration visits
Example:
Travel budget: $5,000
Consultant Costs
Consultants provide specialized expertise.
Examples include:
- Regulatory advisors
- Clinical specialists
- Engineering consultants
Subcontractor Costs
Subcontracts are used when part of the research is conducted by another organization.
Examples include:
- Universities
- Contract research organizations
- Specialized testing labs
SBIR rules apply an important limit:
Only the first $25,000 of subcontract costs is included in indirect cost calculations.
Understanding Indirect Costs (F&A)
Indirect costs are expenses that support the project but cannot be tied to a single activity.
Examples include:
- Office space
- Utilities
- Administrative support
- Accounting services
These are called Facilities and Administrative (F&A) costs.
Indirect Cost Rate Methods
The calculator allows several options:
Safe Rate
Many agencies allow simplified rates without documentation.
Examples:
- 40% safe rate (NIH standard)
- 50% safe rate (NSF option)
De Minimis Rate
Federal guidance allows a 15% de minimis rate under 2 CFR 200.414.
This option is useful for small businesses without a negotiated rate.
Negotiated Rate (NICRA)
Some companies have a Negotiated Indirect Cost Rate Agreement with a federal agency.
This rate can be entered directly.
Actual Projected Rate
Businesses can also estimate their own projected rate based on internal accounting data.
Cost Allocation Base
Indirect costs must be applied to a cost base.
The calculator supports three options:
Direct Salaries and Wages
Indirect costs apply only to salary expenses.
Modified Total Direct Costs (MTDC)
MTDC excludes:
- Equipment
- Subcontract costs above $25,000
This is the most common base used in SBIR budgets.
Total Direct Costs
Indirect costs apply to all direct project expenses.
Fee or Profit in SBIR Grants
Unlike many federal grants, SBIR allows small businesses to include a profit or fee.
The maximum allowed fee is:
7% of project costs
The calculator automatically computes this value.
Example:
Total costs = $250,000
Fee = $17,500
TABA: Technical and Business Assistance
SBIR programs may allow TABA funding.
TABA supports services such as:
- Market research
- Intellectual property strategy
- Commercialization planning
Typical TABA funding can reach $50,000 depending on the agency.
Cost Share or Matching
Some agencies require companies to contribute part of the project cost.
This is called cost sharing.
Examples include:
- Company investment
- Partner contributions
- Internal resources
The calculator allows optional cost-share tracking.
SBIR Budget Output Results
After entering all values, the calculator generates a full budget summary.
The output includes:
Personnel Costs
Total salary plus fringe benefits.
Non-Personnel Direct Costs
Materials, travel, consultants, and other direct expenses.
Subcontractor Costs
Total subcontract funding.
Total Direct Costs
All direct expenses combined.
MTDC Base
The base used to calculate indirect costs.
Indirect Costs (F&A)
Administrative and facility expenses.
Fee or Profit
Maximum 7% profit allowed for small businesses.
Total Requested Funding
The full SBIR Phase I budget request.
Funding Cap Compliance Check
The calculator automatically compares your budget to the agency funding cap.
Possible results include:
- Within Limit
- Exceeds Cap
This helps ensure the proposal stays compliant with SBIR guidelines.
Monthly Burn Rate
The calculator also shows the monthly burn rate.
Burn rate = Total funding ÷ Project duration
Example:
Total budget: $240,000
Duration: 8 months
Monthly burn rate: $30,000
This helps companies manage spending during the project.
Special Rule: DOE Indirect Cost Cap
The Department of Energy applies an extra rule for for-profit companies.
DOE limits:
Indirect + Fringe ≤ 15% of total direct costs
The calculator automatically checks compliance and adjusts calculations if needed.
Why Use an SBIR Budget Calculator?
Building a grant budget manually can be complex.
An SBIR Phase I Budget Calculator offers several advantages.
Faster Budget Planning
It instantly calculates multiple cost categories.
Fewer Errors
Automated formulas reduce spreadsheet mistakes.
Funding Cap Checks
The tool verifies compliance with SBIR funding limits.
Clear Budget Breakdown
The final summary helps prepare proposal documents.
Tips for Building a Strong SBIR Budget
Even with a calculator, thoughtful planning matters.
Here are a few practical tips.
Keep Personnel Costs Realistic
Reviewers often expect personnel to represent 40–60% of the budget.
Justify Equipment Purchases
Large equipment costs must clearly support the research goals.
Avoid Overloading Indirect Costs
High overhead rates can weaken the proposal.
Plan for Commercialization
Include activities that move the technology toward market use.