By Outrider Editorial Team · Updated August 20, 2026
PSC R704 is the federal auditing code: financial statement audits, single audits of grant recipients, incurred-cost audits, improper-payment reviews, and the audit readiness work agencies buy in support of them. FY2025 obligations were $1.12 billion.
The tidiest distribution in the R series
Most service codes scatter across unrelated industries. R704 does not. Offices of Certified Public Accountants (541211) took $463 million and Other Accounting Services (541219) another $388 million. Together those two registrations account for roughly 76 percent of the code. The remainder is small and easy to explain: Other Computer Related Services (541519) at $76 million, collection agencies 561440 at $76 million, and management consulting 541611 at $64 million.
The one-line version of PSC versus NAICS
A PSC is the government's classification of the purchase and a NAICS code is the vendor's classification of itself, and R704 is the rare case where the two describe the same thing.
That makes R704 a genuinely reliable search. If you hold a CPA registration, an alert on this single code plus R703 accounting will surface nearly your whole addressable federal market. Note that R615 background investigation and R702 data collection are separate codes and do not belong in an audit search.
NAICS crosswalk
Where FY2025 R704 dollars landed, by the winning vendor's registered NAICS code.
- 541211Offices of Certified Public Accountants$463.4M
- 541219Other Accounting Services$387.8M
- 541519Other Computer Related Services$76.0M
- 561440Collection Agencies$75.8M
FY2025 federal contract obligations, USAspending.gov
Frequently Asked
PSC R704 questions, answered.
What does PSC R704 cover?
Audit services purchased by federal agencies, including financial statement audits, single audits, incurred-cost audits, and audit readiness support.
What NAICS codes win R704 work?
Offices of Certified Public Accountants (541211) at $463 million and Other Accounting Services (541219) at $388 million together take about three-quarters of FY2025 obligations, the tightest concentration among the large R codes.
Is accounting the same PSC as auditing?
No. Accounting is PSC R703 and auditing is PSC R704. Firms that do both should register their NAICS codes once and search both PSCs.
Why do collection agencies show up under an audit code?
Improper payment identification and recovery work is often awarded to recovery-audit firms whose SAM.gov registration falls under collection services, so the obligation carries that industry code.
Watch R704 opportunities
Solicitations are filed by PSC as well as NAICS. Outrider matches your company profile against both so nothing filed under a code you do not watch slips past.
Get matched to federal opportunities →