NAICS 541310 vs 541320
This page compares NAICS 541310 (Architectural Services) vs NAICS 541320 (Landscape Architectural Services) to help you determine the correct industry classification code.
Side-by-Side Comparison Asset
| Dimension | NAICS 541310 — Architectural Services | NAICS 541320 — Landscape Architectural Services |
|---|---|---|
| Definition | This industry comprises establishments primarily engaged in planning and designing residential, institutional, leisure, commercial, and industrial buildings and structures by applying knowledge of design, construction procedures, zoning regulations, building codes, and building materials. | This industry comprises establishments primarily engaged in planning and designing the development of land areas for projects, such as parks and other recreational areas; airports; highways; hospitals; schools; land subdivisions; and commercial, industrial, and residential areas, by applying knowledge of land characteristics, location of buildings and structures, use of land areas, and design of landscape projects. |
| SBA Size Standard | $12,500,000 | $9,000,000 |
| US Establishments (CBP) | 22,805 | 5,176 |
Decision Rule Guidelines
Select 541310 if your primary business focus aligns with Architectural Services. Select 541320 if the establishment's core activities match the definition of Landscape Architectural Services. Verify the revenue share of each activity if both apply.
Frequently Asked Questions (FAQ)
Can I report both NAICS 541310 and 541320 on a business tax return? ▾
No, the IRS requires declaring a single primary activity code (either 541310 or 541320) on Schedule C or Form 1120. You must audit your revenue share between these two classifications and select the code that represents the highest percentage of your receipts.
How do the SBA size standards differ between NAICS 541310 and 541320? ▾
NAICS 541310 has a standard of $12,500,000 while NAICS 541320 has a standard of $9,000,000. Ensure your rolling averages of annual receipts or employees do not exceed the specific code limit for your chosen classification.
Related Pages & Tools
- NAICS Code 541310 Directory — Official definition, SBA thresholds, and details.
- NAICS Code 541320 Directory — Official definition, SBA thresholds, and details.
- Find NAICS by Industry — Search classification directory.
Primary Ingestion Source
Data sourced from the U.S. Census Bureau NAICS 2022 Manual and SBA Small Business Size Regulations (13 CFR Part 121). Last verified on 2026-06-30.