SBIR and STTR budgets are built before the work begins.

 

At the proposal stage, companies estimate labor, materials, consultants, subcontractors, indirect costs, travel, testing, and other project needs based on the technical plan. But research and development does not always follow the exact path described in the original budget.

 

Employees may spend more time than expected. Founder effort may shift. A consultant may be needed earlier than planned. Materials may cost more. A subcontractor may invoice later than expected. Indirect rates may change. A project may pivot technically, even while staying focused on the approved goal.

 

When actual spending no longer matches the approved budget, founders should not ignore the difference.

 

Budget drift is common in SBIR/STTR award management, but it needs to be identified, documented, reviewed, and handled according to the award terms.

 

At Peter Witts CPA PC, we help SBIR/STTR awardees reconcile budget to actuals, identify spending variances, review documentation, and determine when agency approval or additional financial action may be needed.

 

Why Budget Drift Happens

 

Budget drift happens when actual spending moves away from the approved budget or original proposal assumptions.

 

Some budget drift is normal. Research projects involve uncertainty. Technical work may take more labor than expected. Materials may change. Partner timelines may shift. Employees may be hired later than planned. Testing may require additional rounds.

 

Common causes of budget drift include:

• Labor hours exceeding the approved budget
• Founder time shifting from technical work to management
• Employees working across multiple projects
• Consultant costs increasing
• Subcontractor invoices arriving late
• Materials or supplies costing more than expected
• Travel plans changing
• Equipment needs shifting
• Indirect rates changing
• Vendor timelines affecting spending
• Project work moving faster or slower than planned
• Costs coded to the wrong award or category
• Non-award activities mixed with award activity

The issue is not that every variance is automatically a problem. The issue is whether the company can see the variance, explain it, and manage it properly.

 

Start With the Approved Budget

 

When actual spending starts to drift, the first step is to go back to the approved budget.

 

Do not rely only on the proposal draft or an internal spreadsheet created before award. The approved budget may differ from what was submitted. Agencies may adjust categories, remove costs, change indirect treatment, approve different funding levels, or add award-specific restrictions.

 

Review:

• Approved total award amount
• Approved budget by category
• Period of performance
• Budget restrictions
• Approved labor categories
• Consultant or subcontractor budgets
• Equipment or travel approvals
• Indirect cost treatment
• Fee or profit, if applicable
• Cost share or matching requirements, if applicable
• Prior approval requirements
• Agency-specific terms and conditions

The approved budget is the baseline for the budget-to-actual review.

 

Build a Current Budget-to-Actual Report

 

A budget-to-actual report compares the approved budget to actual costs incurred.

 

If the company does not already have this report, build one before making decisions about rebudgeting, drawdowns, invoices, or scope changes.

 

A useful report should show:

• Approved budget by category
• Actual costs incurred
• Remaining budget
• Variance amount
• Percentage spent
• Burn rate
• Labor detail
• Consultant and subcontractor detail
• Materials, supplies, and equipment costs
• Indirect cost activity
• Drawdowns, invoices, or reimbursements
• Remaining funding
• Notes explaining major variances

Uniform Guidance requires financial management systems to compare expenditures with budget amounts for each federal award. Even when agency-specific rules vary, budget-to-actual visibility is a basic financial management practice for federally funded work.

 

Confirm Whether the Variance Is Real

 

Not every variance means the project is financially off track.

 

Sometimes a variance is caused by timing, coding, or incomplete records.

 

Before assuming the budget needs to change, ask:

• Were all costs posted to the correct award?
• Were costs posted to the correct budget category?
• Are payroll and timekeeping records complete?
• Are vendor invoices missing?
• Did a subcontractor invoice late?
• Are indirect costs calculated correctly?
• Were drawdowns or invoices recorded properly?
• Are costs incurred but not yet paid?
• Are there duplicate entries?
• Are any non-award costs included by mistake?

A budget-to-actual report should be reconciled to the accounting system before leadership uses it to make award decisions.

 

Review Labor First

 

Labor is often the largest SBIR/STTR budget category, and it is often where budget drift appears first.

 

A company may discover that employees are spending more time on a technical task than expected, founder effort has changed, or staff are charging time differently than the budget assumed.

 

Review:

• Budgeted labor by person or role
• Actual labor charged
• Remaining labor budget
• Labor burn rate
• Timekeeping records
• Payroll records
• Labor distribution reports
• Direct versus indirect labor
• Founder time
• Employee effort across multiple projects

If labor is over budget, determine whether the issue is technical need, staffing, coding, timekeeping, or indirect labor classification.

 

If labor is under budget, determine whether work is delayed, staff were hired later than expected, or costs were not recorded correctly.

 

Review Founder Time Carefully

 

Founder time is one of the most common sources of budget drift.

 

Founders often shift between technical work, company management, fundraising, investor conversations, commercialization, hiring, operations, and non-award activity.

 

If founder labor was included in the approved budget, compare actual founder time to the approved level of effort.

 

Ask:

• What founder effort was approved?
• What work has the founder actually performed?
• Is the work direct project labor?
• Is some of the work indirect business activity?
• Is some of the work outside the award?
• Do timesheets support the labor charged?
• Does payroll support the compensation?
• Has founder time affected indirect rates?
• Is the variance due to project need or timekeeping issues?

Founder labor should not be adjusted informally. It should be supported by timekeeping, payroll, and documentation.

 

Review Consultant and Subcontractor Costs

 

Consultants, subcontractors, vendors, universities, and research partners can create significant variances.

 

Sometimes the partner performs more work than expected. Sometimes costs arrive later than expected. Sometimes the technical plan changes and a different specialist is needed. Sometimes an invoice is coded to the wrong category.

 

Review:

• Approved consultant or subcontractor budget
• Scope of work
• Invoices received
• Invoices approved
• Payments made
• Deliverables completed
• Remaining partner budget
• Pending invoices
• Budget variances
• Scope changes
• Prior approval requirements

If partner work has changed, document what changed, why it changed, and whether agency approval may be required.

 

Review Materials, Supplies, Equipment, and Testing

 

R&D projects often involve changing technical needs.

 

Materials may cost more than expected. Testing may require another round. Equipment needs may shift. Prototype components may change. Travel may no longer be needed, or new travel may become necessary.

 

Review:

• Approved budget category
• Actual costs incurred
• Purchase documentation
• Vendor quotes
• Invoices and receipts
• Technical need
• Period of performance
• Allowability
• Prior approval requirements
• Remaining budget

Do not assume that savings in one category can automatically be moved to another category. The award terms and agency rules matter.

 

Review Indirect Costs and Rates

 

Indirect costs can drift when the company’s actual cost structure changes.

 

This may happen when the company hires staff, changes facilities, increases administrative support, adds insurance, expands accounting support, or performs more non-award work than expected.

 

Review:

• Approved indirect rate
• Current actual indirect costs
• Cost pools
• Allocation bases
• Direct labor base
• Fringe, overhead, or G&A structure
• Unallowable cost exclusions
• Actual versus proposed rates
• Indirect costs charged or drawn
• Impact on remaining budget

SBIR.gov notes that indirect rates are estimates and that companies may revise them as they learn more or as actual costs become clearer. The key is to base changes on the company’s own cost structure and maintain support for the calculation.

 

Identify Whether the Variance Is Timing, Budget Drift, or Scope Change

 

Not all variances mean the same thing.

 

A variance may be:

• Timing-related: Costs are expected but have not occurred yet.
• Coding-related: Costs were posted to the wrong category or project.
• Budget drift: Actual costs are moving away from the approved budget, but the project scope may still be the same.
• Scope-related: The work itself is changing in a way that may affect the approved project.
• Funding-related: The company may not have enough budget to complete the remaining work.
• Compliance-related: Costs may require prior approval, documentation, or exclusion.

This distinction matters because the next step depends on the cause.

 

A timing issue may require no budget change. A coding issue may require an accounting correction. A scope change may require agency approval before the company proceeds.

 

Check the Award Terms Before Rebudgeting

 

Founders should not assume they can freely move funds between categories.

 

Rebudgeting rules vary by agency, award type, phase, and specific terms. Some changes may be allowed within recipient authority. Others may require prior approval.

 

2 CFR 200.308 addresses revisions of budget and program plans and explains that recipients must use the same budget format used in the application when requesting approval, unless the agency approves another format. It also explains that prior approval requirements may be waived for certain research awards unless the agency’s regulations or terms and conditions say otherwise.

 

The practical point is simple: check the award terms before moving money.

 

Review:

• The Notice of Award or contract
• Agency-specific terms
• Budget revision rules
• Prior approval requirements
• Scope change rules
• Consultant or subcontractor restrictions
• Equipment and travel restrictions
• Cost share requirements
• Reporting obligations

When in doubt, document the question and confirm before acting.

 

Know When Prior Approval May Be Needed

 

Prior approval may be required when a budget change affects the approved scope, key personnel, subawards, certain cost categories, cost share, equipment, foreign components, or other award-specific restrictions.

 

NIH instructs recipients to consult the Grants Policy Statement and award terms for rebudgeting and prior approval requirements. NIH’s policy materials also identify significant rebudgeting, change in scope, changes in key personnel status, and other actions as areas that may require prior approval depending on the situation.

 

NSF’s SBIR/STTR awardee guidance also notes that budget changes may require NSF approval.

 

The company should not wait until final reporting to ask whether approval was needed.

 

Document the Reason for the Variance

 

Every major variance should have a clear explanation.

 

A strong variance explanation may include:

• What changed
• When it changed
• Why it changed
• Which budget category was affected
• Whether the technical scope changed
• Whether costs remain allowable
• Whether prior approval was requested or received
• How the change affects remaining budget
• How the change affects cash flow
• What action leadership approved

The explanation should be saved with the award records.

 

This documentation helps support future reports, agency questions, drawdowns, invoices, and closeout.

 

Update the Forecast

 

Once the variance is understood, update the forecast.

 

A current forecast should show what the company expects to spend for the rest of the award period.

 

Review:

• Remaining technical work
• Remaining labor
• Founder effort
• Consultant and subcontractor costs
• Materials and testing
• Travel or equipment
• Indirect costs
• Drawdowns or invoices
• Remaining funding
• Cash flow needs
• Closeout costs

The forecast should help leadership decide whether the project can be completed within the approved budget or whether agency communication, rebudgeting, or internal funding decisions are needed.

 

Review Cash Flow Impact

 

Budget drift can create cash flow pressure.

 

Even if total award costs remain within the approved amount, spending may happen earlier than expected. Payroll may increase. A subcontractor may need payment before reimbursement. Materials may require deposits. Indirect costs may be under-recovered.

 

Review:

• Cash on hand
• Upcoming payroll
• Upcoming vendor payments
• Pending invoices
• Expected drawdowns or reimbursements
• Payment timing
• Remaining award funds
• Working capital needs
• Non-award expenses

Budget-to-actual review should connect to cash flow planning. A project can be within budget and still experience a funding gap.

 

Correct Accounting Errors Promptly

 

If the budget variance is caused by coding or posting errors, correct them promptly.

 

Examples may include:

• Payroll charged to the wrong project
• Vendor costs posted to the wrong award
• Consultant costs recorded in the wrong category
• Indirect costs calculated incorrectly
• Unallowable costs included by mistake
• Drawdowns recorded incorrectly
• Duplicate expenses
• Costs posted outside the period of performance

Corrections should be documented. The company should retain notes showing what was corrected, why it was corrected, who approved it, and how it affected the award records.

 

Do Not Use One Award to Cover Another

 

When actual spending does not match the budget, companies may feel pressure to move costs between projects.

 

This can create serious problems.

 

Costs should be charged to the award or project that actually benefited from the work. A company should not move costs to an award simply because that award has remaining funds.

 

Awardees should maintain project-level cost tracking and ensure costs are allocated based on actual benefit, timekeeping, invoices, scopes of work, and supporting documentation.

 

Update Internal Responsibilities

 

When budget drift appears, internal responsibilities should be clear.

 

Decide who will:

• Review the budget-to-actual report
• Investigate variances
• Confirm technical impact
• Review labor and timekeeping
• Review partner costs
• Assess indirect rate impact
• Determine whether agency approval is needed
• Prepare documentation
• Update the forecast
• Communicate with the agency, if appropriate
• Maintain the award file

Budget drift should not be handled only by the founder or only by the bookkeeper. It often requires coordination between finance, leadership, technical leads, and outside advisors.

 

Monthly Budget-to-Actual Review Checklist

 

Each month, SBIR/STTR awardees should review:

• Approved budget by category
• Actual costs incurred
• Remaining budget
• Labor burn rate
• Founder time
• Consultant and subcontractor costs
• Materials and testing costs
• Indirect cost activity
• Drawdowns, invoices, or reimbursements
• Cash flow impact
• Budget variances
• Documentation gaps
• Potential rebudgeting needs
• Potential prior approval issues
• Closeout impact

Monthly review helps the company catch budget drift before it becomes a reporting or cash flow problem.

 

Common Mistakes When Actual Spending Changes

 

SBIR/STTR awardees often run into trouble when budget drift is ignored or handled informally.

 

Common mistakes include:

• Waiting until closeout to compare budget to actuals
• Assuming all unused funds can be moved freely
• Not checking award terms before rebudgeting
• Treating a scope change like a budget change
• Not documenting variance explanations
• Moving costs between awards without support
• Ignoring founder labor changes
• Not reviewing indirect rate impact
• Paying subcontractors beyond the approved budget
• Drawing or invoicing based on outdated assumptions
• Failing to request prior approval when required
• Not updating cash flow forecasts
• Keeping budget reviews outside the accounting system

These issues are easier to prevent with regular budget-to-actual reviews.

 

Questions to Ask When the Budget No Longer Matches Actual Spending

 

When actual spending no longer matches the approved budget, ask:

• Is the variance real, or is it caused by timing or coding?
• Which budget categories are affected?
• Are labor charges supported by timekeeping?
• Are vendor and partner costs properly documented?
• Are indirect costs still supportable?
• Is the project scope changing?
• Does the award allow this rebudgeting?
• Is prior approval required?
• Are costs still allowable and allocable?
• How does the variance affect remaining work?
• How does the variance affect cash flow?
• What documentation should be saved?
• Does leadership need to update the forecast?

These questions help turn budget drift into a managed financial review.

 

Final Thoughts: Budget Drift Should Be Managed, Not Ignored

 

SBIR/STTR budgets are built from estimates, and actual spending may change as the project unfolds. That is normal.

 

But when actual spending no longer matches the approved budget, the company needs a process.

 

Budget drift should be identified through budget-to-actual reporting, reviewed for timing or coding issues, documented clearly, checked against award terms, and managed before it creates reporting, cash flow, or closeout problems.

 

At Peter Witts CPA PC, we help SBIR/STTR awardees reconcile budget to actuals, review labor and partner costs, monitor indirect rates, identify documentation gaps, and prepare for agency approval or reporting when needed.

 

Need Help Reconciling Budget to Actuals?

 

If your company is managing an SBIR/STTR award and actual spending no longer matches the approved budget, Peter Witts CPA PC can help review your budget-to-actual reports, labor charges, consultant and subcontractor costs, indirect rates, cash flow impact, documentation, and potential rebudgeting questions.

 

Backed by 35+ years of government contract accounting experience and first-hand DCAA knowledge, our team helps innovators manage federal award spending with clearer records, stronger controls, and better financial visibility.

 

Schedule a strategic consultation with Peter Witts CPA PC to reconcile budget to actuals.