Does Your Firm Need a CPA-Audited Indirect Cost Rate for TxDOT?
- JConner
- Jul 26
- 6 min read
Firms pursuing work with the Texas Department of Transportation often hear that they need an “overhead audit” or a CPA-audited indirect cost rate. That may be true—but it is not true for every firm or every TxDOT opportunity.
The appropriate path depends on the type of work your firm performs, the applicable selection process, the funding source, and whether your firm qualifies for another accepted method. Before engaging a CPA or preparing a submission, it is important to distinguish PEPS administrative qualification from contractor prequalification and understand the available indirect cost rate pathways.
This guide explains when a CPA audit may be appropriate, what the audit covers, and which alternatives may be available.
First, identify which TxDOT process applies
TxDOT has different qualification processes for different types of providers. Two processes that are frequently confused are:
PEPS administrative qualification, which concerns the indirect cost rates of firms providing engineering, architectural, surveying, and related professional services; and
Contractor prequalification, which applies to road, bridge, maintenance, and certain other contractors seeking bidding capacity.
A CPA audit of an indirect cost rate is not the same as an audit of financial statements submitted for contractor prequalification. The applicable report, standards, and supporting records differ.
This article focuses primarily on indirect cost rates for PEPS administrative qualification. Firms pursuing contractor work should evaluate the separate contractor-prequalification requirements.
What is TxDOT administrative qualification?
TxDOT describes administrative qualification as the process used to verify that a firm has an indirect cost rate meeting TxDOT requirements.
An indirect cost rate allocates allowable overhead costs—such as certain accounting, human resources, office, technology, and facility costs—to an appropriate cost base. TxDOT requires direct labor cost as the allocation base for administrative qualification.
The rate can materially affect contract pricing and cost recovery. A rate that includes unallowable costs, does not reconcile to the general ledger, or is based on inconsistent classifications may be delayed, adjusted, or rejected during review.
TxDOT states that a firm may demonstrate administrative qualification through:
An accepted audit;
Self-certification; or
For certain eligible firms pursuing federally funded work, the Texas Federal Safe Harbor Program.
Accordingly, administrative qualification does not automatically mean that every firm must obtain a CPA audit.
When Is a TxDOT Indirect Cost Rate Audit Required?
A TxDOT indirect cost rate audit may be required when a firm uses an independently audited rate to obtain or maintain PEPS administrative qualification.
A CPA audit may be appropriate when:
The applicable TxDOT process or solicitation requires an audited rate;
The firm is not eligible for—or elects not to use—an available alternative;
The firm needs an independently audited rate for TxDOT or other government contracting purposes;
A cognizant agency or contracting authority requires an audited rate;
The firm has a developed cost-accounting structure and wants independent assurance over its indirect cost rate schedule; or
The firm’s size, contract portfolio, risk profile, or compliance environment makes an independent audit the more suitable approach.
TxDOT explains that an audit may be performed by an independent CPA, a federal agency, another state transportation agency, or a local transit agency. An audit performed by an independent CPA must use the current versions of:
48 CFR Part 31, which addresses federal contract cost principles and procedures;
Government Auditing Standards, commonly called the Yellow Book; and
The AASHTO Uniform Audit and Accounting Guide.
The CPA’s work ordinarily goes beyond comparing totals on a spreadsheet. The engagement may include evaluating the rate schedule, reconciling it to the accounting records, testing selected transactions, reviewing direct and indirect cost classifications, assessing unallowable costs, considering internal controls, and examining supporting documentation.
TxDOT also requires the provider to give its PEPS Administrative Qualifications Group unrestricted access to the CPA’s audit workpapers, records, and other requested information. Firms should therefore engage a CPA who understands both the applicable technical criteria and TxDOT’s submission expectations.
When might self-certification apply?
Self-certification is a separate method under which the provider prepares a cost report and an internal-controls report. Both reports must be signed by a company officer and notarized.
The self-certified cost report must comply with the current versions of 48 CFR Part 31, Government Auditing Standards, and the AASHTO Uniform Audit and Accounting Guide. However, TxDOT expressly notes that the cost report is not an audit.
Self-certification should not be viewed as a simple form or informal calculation. The firm still needs reliable accounting records, appropriate direct and indirect cost classifications, support for adjustments, documented internal controls, and a cost report that reconciles to its books.
Whether self-certification is the appropriate path depends on the applicable TxDOT requirements and the firm’s circumstances. A firm should confirm its eligibility and submission approach before relying on this option.
What about the federal safe-harbor rate?
For engineering or design-related services directly related to a highway construction project and reimbursed with Federal-aid Highway Program funding, a firm generally must be administratively qualified with an effective rate by the solicitation closing date unless TxDOT approves the firm to use the federal safe-harbor indirect cost rate.
TxDOT currently identifies a 120% safe-harbor rate for eligible consulting firms under this program. Eligibility must be approved by the PEPS Administrative Qualifications Group before the solicitation closing date.
The safe-harbor option is intended for qualifying firms with limited relevant contracting or indirect-cost-rate experience, insufficient financial sophistication or resources, or other specified circumstances. It is not automatically available to every firm, and it is not intended for use as a field rate on field-based contracts.
Because eligibility is fact-specific, firms should not assume that being new or small automatically makes the safe-harbor rate available.
What does an indirect cost rate schedule typically include?
Although the precise format depends on the applicable requirements, an indirect cost rate schedule generally includes:
Direct labor as the allocation base;
Indirect labor and applicable payroll-related costs;
Facilities, technology, insurance, administrative, and other overhead costs;
Adjustments for expressly unallowable or otherwise noncompliant costs;
Reconciliation to the general ledger and financial records; and
The resulting indirect cost rate calculation.
Common problem areas include:
Direct project costs recorded as overhead;
Indirect costs charged directly to selected projects;
Lobbying, penalties, certain advertising, entertainment, or other unallowable costs remaining in the pool;
Owner or executive compensation without adequate analysis;
Related-party transactions without sufficient support;
Inconsistent treatment of similar costs;
Labor records that do not adequately support direct and indirect time; and
A schedule that does not reconcile to the trial balance or general ledger.
These issues can take time to correct. Firms generally benefit from reviewing their accounting structure and documentation well before the required submission date.
Additional annual submission requirements
Whether a firm uses a CPA audit or self-certification, the indirect cost rate submission involves more than the rate calculation alone.
TxDOT states that a provider must submit:
An annual compensation analysis for all executives, prepared in accordance with the AASHTO Uniform Audit and Accounting Guide; and
A signed Certification of Final Indirect Costs meeting Federal Highway Administration requirements.
The audit or self-certification must be based on the provider’s fiscal year. TxDOT states that the approved rate becomes effective six months after fiscal year-end—or immediately if filed more than six months after fiscal year-end—is effective for no more than 12 months, and expires 18 months after the fiscal year-end on which it is based.
TxDOT also instructs firms to submit a new CPA audit or self-certification for review each year no later than six months after fiscal year-end. Starting early is important because
TxDOT may request corrections or additional information during its review.
A practical decision checklist
Before deciding that your firm needs a CPA audit, answer these questions:
Are you pursuing PEPS professional services, contractor work, or another type of TxDOT opportunity?
Is the selection process federal or non-federal?
Does your firm already have a currently effective, accepted indirect cost rate?
Is an audit, self-certification, cognizant-agency rate, or safe-harbor option available?
Does the applicable solicitation impose additional requirements or deadlines?
Can your general ledger and labor system distinguish direct, indirect, and unallowable costs?
Does the rate schedule reconcile to the accounting records?
Is the executive-compensation analysis complete and supportable?
Has adequate time been allowed for preparation, audit procedures, corrections, and TxDOT review?
If the answers are unclear, determining the correct pathway should be the first step—not preparing a rate or scheduling an audit based on an assumption.
How JConner can help
JConner helps engineering firms, consultants, and contractors navigate TxDOT audit, indirect cost rate, administrative qualification, and contractor prequalification requirements.
Our services include:
Indirect cost rate development and reconciliation
FAR Part 31 unallowable-cost reviews
Audit-readiness and accounting-system assessments
Self-certification support
Executive-compensation analysis support
Administrative-qualification assistance
Contractor-prequalification financial reporting
We begin by helping the firm identify the applicable pathway and readiness gaps. This can prevent unnecessary work, reduce submission delays, and allow the audit or self-certification process to proceed more efficiently.
You can also visit the TxDOT Resource Library for practical checklists and worksheets addressing indirect cost rates, FAR compliance, self-certification, and contractor prequalification.
Official resources
This article is provided for general educational purposes and does not constitute legal, accounting, or contracting advice. Requirements may vary based on the solicitation, funding source, services, entity structure, and current TxDOT guidance. JConner is an independent CPA firm and is not affiliated with or endorsed by the Texas Department of Transportation.
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