Department of War Shifted Federal Contracting Policy

Federal contractors will transition to commercial accounting standards as part of a move to improve industrial efficiency.

Updated on Sept. 18, 2026 in Economic Policy

Isometric editorial illustration showing a stone plinth beside a steel structure, representing a shift in federal accounting standards. — The Department of War has mandated a transition to GAAP accounting for federal contractors to streamline industrial efficiency and reduce administrative audit burdens. AI Illustration. Upload story photo >

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Should federal government contractors be required to use standard commercial accounting instead of unique government standards?

The Department of War released a memorandum on September 14, 2026, mandating a transition from Cost Accounting Standards (CAS) to Generally Accepted Accounting Principles (GAAP). This policy shift impacts how government contractors manage their business systems and audits.

Why it matters

By aligning contractor requirements with commercial standards, the Department of War aims to streamline industrial efficiency and allow companies to retain savings from their own operational improvements. This change reduces the administrative burden of government-specific audits for most work.

The transition replaces mandatory oversight with independent public accounting firm certifications and moves toward a risk-based audit model. The policy requires implementing procedures for supplier transparency to be finalized within 30 days.

The players

Department of War

A federal agency that manages defense-related procurement and establishes national standards for government contractors.

Cost Accounting Standards Board

The federal regulatory body that establishes and maintains standards for the measurement, assignment, and allocation of costs to government contracts.

The details

The directive mandates that contractors adopt GAAP for most acquisitions while restricting the use of Cost Accounting Standards to sole-source or incentive-fee work. Under the new model, the Department of War will merge estimating and material-management reviews into GAAP-aligned criteria and rely on independent certifications rather than government-led business system reviews. Additionally, companies can now retain savings achieved through efficiencies on fixed-price contracts, which are now the default for competitive acquisitions.

September 14, 2026: The Department of War issued the policy memorandum.
Within 30 days: Deadline for supplier transparency procedures.
Within 60 days: Deadline for proposals to the CAS Board.
Within 90 days: Deadline for DFARS profit policy rulemaking.

Money Landscape

This policy shifts government procurement from a highly specialized, federally regulated accounting framework to widely used commercial standards. It represents a broader effort to modernize how the federal government interacts with the private industrial base.

Contractors operating under fixed-price agreements may see improved profit margins as they become eligible to retain savings from operational efficiencies. Business owners should consult with a qualified tax or accounting professional to assess how the new GAAP alignment affects their reporting requirements.

The takeaway

This change signals a shift toward incentivizing private-sector efficiency in government work by moving toward commercial accounting norms. Contractors should track the upcoming 90-day DFARS rulemaking window for changes that may impact future profit structures and audit risks.

What happens next

The Department of War is scheduled to submit exemption proposals to the CAS Board within 60 days, followed by new DFARS profit policy rulemaking within 90 days.