Employment
1,297,995
Total employees (Census CBP)
Professional, Scientific, and Technical Services ·NAICS 54121
NAICS 54121 · IRS SOI 2023 · Census CBP
$76,876/yr average annual pay, with 5,581 SBA loans on record for NAICS 54121.
Data updated July 2026
The verdict · NAICS 54121
California leads Accounting, Tax Preparation, Bookkeeping, and Payroll Services activity nationally. IRS SOI doesn't publish margin data at this NAICS level, but the broader Professional, Scientific, and Technical Services sector runs a 14.0% net margin.
Accounting, Tax Preparation, Bookkeeping, and Payroll Services sits inside Professional, Scientific, and Technical Services, a sector that runs a 14.0% net margin overall.
137,069 establishments employ 1,297,995 workers (9.5/location) at $76,876/yr average annual pay. California leads employment, followed by Texas and New York.
Employment
1,297,995
Total employees (Census CBP)
Avg Payroll / Employee
$76,876/yr
Annual compensation
Establishments
137,069
Business locations
Release-over-release change
Employment increased by 66,991; establishment count increased by 1,109. This comparison uses two published national Census County Business Patterns releases; suppressed fields are omitted rather than estimated.
| Industry | Profit Margin |
|---|---|
| Offices of Certified Public Accountants NAICS 541211 | N/A |
| Other Accounting Services NAICS 541219 | N/A |
| Payroll Services NAICS 541214 | N/A |
| Tax Preparation Services NAICS 541213 | N/A |
| State | Employment |
|---|---|
| California | 168,466 |
| Texas | 110,048 |
| New York | 109,178 |
| Florida | 79,969 |
| Illinois | 65,514 |
| Pennsylvania | 49,283 |
| Georgia | 47,433 |
| New Jersey | 42,575 |
| Ohio | 38,209 |
| Virginia | 35,883 |
Showing top 10 of 51 states
SBA Loans Approved
5,581
Total Loan Volume
$2.2B
Avg Loan Size
$390K
Jobs Supported
34,213
Top SBA Lender
Live Oak Banking Company
411 loans in this industry
New Business Share
17.9% of borrowers were new/startup businesses
These links are calculated from the current national dataset. They are comparison paths, not recommendations or evidence that businesses operate alike.
How this ranks: Its Census employment total exceeds 97% of that same 551-industry cohort. Calculated by ranking this industry's reported value against every other industry at the same NAICS digit-level, not the whole dataset: comparing a 6-digit detail industry to a 2-digit sector would mix incompatible scales.
Same NAICS detail level, ordered by the smallest difference in reported Census employment.
Benchmarking Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Sources: IRS Statistics of Income (SOI) Business Tax Statistics · Census Bureau County Business Patterns 2023
NAICS 54121 · Data year: 2023
According to the U.S. Census Bureau, which released its 2023 County Business Patterns dataset in June 2025, PlainBizBench benchmarks 2,002 U.S. industries against Internal Revenue Service Statistics of Income data. See our methodology for the full compilation process.
Read our methodology - how this data is sourced, computed, and verified.
Source: U.S. Census Bureau, County Business Patterns / SUSB Industry employment scale, payroll, and firm-size benchmarks · 2023
Every figure on PlainBizBench is rendered directly from federal source data, no number is typed in by an editor. This page aggregates profit-margin, payroll, entity-type, and SBA-lending benchmarks for this industry, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.