541211 — Offices of Certified Public Accountants
Description
This U.S. industry comprises establishments of accountants that are certified to audit the accounting records of public and private organizations and to attest to compliance with generally accepted accounting practices. Offices of certified public accountants (CPAs) may provide one or more of the following accounting services: (1) auditing financial statements; (2) designing accounting systems; (3) preparing financial statements; (4) developing budgets; and (5) providing advice on matters related to accounting. These establishments may also provide related services, such as bookkeeping, tax return preparation, and payroll processing.
Overview Facts
| NAICS Code | 541211 |
|---|---|
| Industry Title | Offices of Certified Public Accountants |
| SBA Size Standard | $26,500,000 |
| U.S. Establishments | 55,052 (Census CBP, 2023) |
| IRS PBA Code | 541211 (exact match) |
| Sectors Hierarchy | Sector 54 → 541 → 5412 |
| JSON Endpoint | View as JSON · API → |
| Source / Verified | US Census 2022 NAICS Manual, Census CBP / 2026-06-28 |
💡 Expert Guidance & SBA Tips
SBA Audit Tip: Since NAICS 541211 utilizes a receipts-based size standard ($26,500,000), the SBA calculates your size using your average annual gross receipts over the last five fiscal years (13 CFR § 121.104). Be sure to include cost of goods sold (COGS) in your gross receipts calculation, as the SBA does not allow COGS deductions.
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 8721 - Accounting, Auditing, and Bookkeeping Services (via SIC1987:8721→NAICS1997:541211→2002:541211→2007:541211→2012:541211→2017:541211→2022:541211)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC R418 — Legal Services
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 541211 an active industry classification in 2022? ▾
Yes, NAICS code 541211 is a fully active classification for 'Offices of Certified Public Accountants' in the U.S. Census Bureau's 2022 vintage. It groups businesses by production process under Sector 54 (Professional, Scientific, and Technical Services), Subsector 541, and Group 5412.
What is the SBA small business size standard for NAICS code 541211? ▾
The SBA size standard limit for NAICS code 541211 is $26,500,000. Firms whose receipts (averaged over five years) or employee headcounts (averaged over 24 months) are below this threshold qualify for federal contracting set-asides.
What are the legacy SIC code equivalents mapped to NAICS 541211? ▾
Legacy 1987 SIC codes mapped to NAICS 541211 include: SIC 8721 (Accounting, Auditing, and Bookkeeping Services). Mappings are resolved transitively across successive Census concordances to preserve historical risk profiles in B2B databases.
What IRS Principal Business Activity (PBA) code matches NAICS 541211? ▾
The IRS PBA tax code matching NAICS 541211 is 541211 (derived via a exact mapping method). Business tax filers must declare this principal business activity code on IRS Schedule C, Form 1120, or Form 1065.
What business activities are classified under NAICS 541211? ▾
Activities classified under NAICS 541211 ('Offices of Certified Public Accountants') include: various industrial activities in this sector. Companies primarily engaged in these production processes must select this code for compliance records.
What activities are excluded from NAICS code 541211? ▾
Exclusions defined by the Census Bureau for NAICS 541211 include: no direct exclusions. Establishments performing these alternative processes are redirected to use their respective industry codes.
How many active establishments operate under NAICS 541211 in the U.S.? ▾
According to the County Business Patterns (CBP) 2023 dataset, there are 55,052 active establishments with registered payrolls operating under NAICS code 541211 in the United States.
Which Product Service Codes (PSCs) are suggested for NAICS 541211? ▾
Suggested advisory Product Service Codes (PSCs) for NAICS 541211 are: PSC R418 (Legal Services). PSCs classify the specific deliverables procured by the government, complementing the industry-level NAICS classification.
Is NAICS code 541211 standard uniform across all U.S. states? ▾
Yes. The North American Industry Classification System (NAICS) code 541211 is a federal statistical standard overseen by the Census Bureau. It applies uniformly to state LLC filings, banking KYC processes, and federal audits.
Related Pages & Tools
Further regulatory reference links for NAICS code 541211:
- Sector 54 Directory Hub — List of related industries in the Professional, Scientific, and Technical Services sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- NAICS 541211 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Offices of Certified Public Accountants).
- IRS PBA Code for Accounting — Principal Business Activity tax reporting details.
- Compare NAICS 541211 vs 541219 — Industrial classification comparison rules (Offices of Certified Public Accountants vs Other Accounting Services).
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.
Sources & References
- U.S. Census Bureau: North American Industry Classification System (NAICS) Manual
- U.S. Small Business Administration (SBA): Table of Small Business Size Standards
- Electronic Code of Federal Regulations (eCFR): 13 CFR Part 121 - Small Business Size Regulations
- Acquisition.gov: Federal Acquisition Regulation (FAR) Part 19 - Small Business Programs
- Internal Revenue Service (IRS): Instructions for Schedule C (Form 1040) Principal Business Activity (PBA) Codes
- U.S. General Services Administration (GSA): System for Award Management (SAM.gov) Unique Entity ID Guide
- Defense Logistics Agency: Defense Logistics Agency (DLA) CAGE Search and Registration
- United Nations Statistics Division: International Standard Industrial Classification of All Economic Activities (ISIC)
- U.S. Occupational Safety and Health Administration (OSHA): Standard Industrial Classification (SIC) Manual
- U.S. Securities and Exchange Commission (SEC): SEC EDGAR Filer Standard Industrial Classification Codes