IRS Schedule C, line B
The IRS business code for cleaning businesses is 561720, Janitorial services. Depending on the work, also check 561740 or 561790.
Also searched as: house cleaning, janitorial, maid service.
Best match
Administrative & Support and Waste Management & Remediation Services › Administrative & Support Services
House and office cleaning, janitorial and window cleaning services.
NAICS 2022: 561720
Matched in the Census NAICS:
Administrative & Support and Waste Management & Remediation Services › Administrative & Support Services
Carpet and upholstery cleaning.
NAICS 2022: 561740
Administrative & Support and Waste Management & Remediation Services › Administrative & Support Services
Pressure washing, gutter cleaning and other services to buildings and dwellings.
NAICS 2022: 561790
Describe what you do in your own words, or browse all 304 IRS codes.
Search “cleaning janitorial” in the business code lookup561720 (Janitorial services): house and office cleaning, janitorial and window cleaning services. Also check 561740 (Carpet & upholstery cleaning services), 561790 (Other services to buildings & dwellings).
On Schedule C (Form 1040), line B. The IRS instructions say to enter the six-digit code from the Principal Business or Professional Activity Codes chart, for the activity that is the principal source of your sales or receipts.
IRS code 561720 covers NAICS 561720. The Census NAICS lines that match cleaning businesses are under 561720. Government bids, SAM.gov and the SBA size standards use the six-digit NAICS code, not the IRS code.
Source: Internal Revenue Service, Instructions for Schedule C (Form 1040) (2025), “Principal Business or Professional Activity Codes” (public domain); NAICS lines from the U.S. Census Bureau 2022 NAICS. PublicBeam is independent and not affiliated with the IRS or any agency. This is not tax advice: always check the current IRS instructions before you file.