NAICS 5614 — Business Support Services
Business Support Services
NAICS 5614 is the industry group code for business support services establishments in the United States. It forms part of the hierarchical North American Industry Classification System maintained by the Census Bureau.
Official data
| Feature | Description |
|---|---|
| Official name | North American Industry Classification System (NAICS) 2022 |
| Issuing authority | U.S. Census Bureau with OMB, Statistics Canada, and INEGI |
| Tax authority | Internal Revenue Service (IRS) |
| Purpose | Statistical business classification and federal contracting (SAM.gov, SBA standards) |
| Used in | SAM.gov registration, SBA size determinations, IRS tax classification, SEC EDGAR (via SIC crosswalk) |
| Active since | 2022 (current edition) |
| Hierarchy level | Sector (2-digit) |
| Source | https://www.census.gov/naics/ |
When do you need NAICS 5614?
NAICS hierarchy path
Trace the classification from the broadest sector down to this national industry code.
Cross-references & crosswalks
How to register a business support services business in the US
Confirm that Business Support Services accurately describes your primary transportation activity.
Apply online at IRS.gov if you operate as a partnership, corporation, or have employees.
IRS EIN applicationApply for MC number through FMCSA if operating interstate commercial motor vehicles.
Update your Motor Carrier Identification Report every two years.
International Fuel Tax Agreement and International Registration Plan for multi-state operations.
Minimum coverage levels depend on vehicle type and cargo — verify with FMCSA minimums.
US Tax Forms & Registration
| Form Name | Who Files It | Frequency |
|---|---|---|
| Profit or Loss from Business | ||
| U.S. Return of Partnership Income | ||
| U.S. Corporation Income Tax Return | ||
| U.S. Income Tax Return for an S Corporation | ||
| Self-Employment Tax | ||
| Estimated Tax for Individuals | ||
| Application for Employer Identification Number (EIN) | ||
| Entity Classification Election | ||
| Nonemployee Compensation | ||
| Employer's Annual Federal Unemployment (FUTA) Tax Return | ||
| Employer's Quarterly Federal Tax Return | ||
| Request for Taxpayer Identification Number and Certification |
Entity Comparison
No federal sales tax in the United States. Sales tax is imposed at state and local levels, ranging from 0% to 10.25%. Economic nexus thresholds (following South Dakota v. Wayfair) require out-of-state sellers to collect sales tax once they exceed a state's revenue or transaction threshold, typically $100,000 in sales or 200 transactions per year.
No state income tax: Alaska (AK), Florida (FL), Nevada (NV), New Hampshire (NH), South Dakota (SD), Tennessee (TN), Texas (TX), Washington (WA), Wyoming (WY)
Who uses this code?
Owns a fleet of licensed taxicabs operating within a city under a municipal taxi commission.
- ●Municipal taxi medallion
- ●City business license
- ●Commercial auto insurance
- ●Form 1065 or 1120
- ●Form 940 (FUTA)
- ●Form 941
Provides outsourced student transportation services under contract with local school districts.
- ●CDL with S and P endorsements
- ●State pupil transportation permit
- ●DOT safety audit
- ●Form 1120 or 1120-S
- ●Form 940 (FUTA)
- ●Form 941
Operates luxury charter motorcoaches for tours, corporate events, and group travel.
- ●DOT operating authority
- ●CDL Class B with P endorsement
- ●Commercial auto liability
- ●Form 1120 or 1065
- ●Form 2290 (HVUT)
- ●Form 940 (FUTA)
Provides wheelchair-accessible van transport for Medicaid patients to medical appointments.
- ●State NEMT certification
- ●Medicaid provider enrollment
- ●ADA-compliant vehicle
- ●Schedule C (Form 1040)
- ●Schedule SE (Form 1040)
- ●Form 1099-NEC
Who is this code for
Occupations and roles commonly associated with this classification
Source: O*NET / BLS occupation data · O*NET 30.2 / BLS SOC
Child codes (6)
Frequently asked questions
- What is NAICS 5614?
- NAICS 5614 is the North American Industry Classification System code for Business Support Services. It classifies this business activity for statistical, regulatory, and government procurement purposes. Federal agencies use NAICS codes to collect and publish data about the US economy, determine SBA size standards, and set aside contracts for small businesses.
- What licenses and permits does a Business Support Services need?
- A Business Support Services typically needs a local business license, a federal EIN from the IRS, and industry-specific permits depending on the sector. Check with your city or county clerk for a general business license, your state's professional or industry licensing board for any required occupational licenses, and your state's tax authority for a sales tax permit if you sell taxable goods or services.
- How do I register a Business Support Services business in the United States?
- To register a Business Support Services business, first choose your legal structure: sole proprietorship (simplest, uses SSN), LLC (personal liability protection, files with your Secretary of State), or corporation (Form 1120 or 1120-S). Register your business name (DBA) with your county if operating under a trade name. Obtain an EIN from the IRS at irs.gov/ein. Register with your state revenue department for any applicable taxes.
- What tax forms does a Business Support Services file with the IRS?
- Tax forms depend on your entity type. A sole proprietor files Schedule C with Form 1040 and Schedule SE for self-employment tax (15.3%). An LLC taxed as a partnership files Form 1065 with Schedule K-1s. A C-Corporation files Form 1120 (21% flat rate). An S-Corporation files Form 1120-S. All businesses paying employees file Form 940 (FUTA) annually and Form 941 quarterly. Estimated tax payments are made via Form 1040-ES four times per year.
- Is Business Support Services the right NAICS code for my business?
- Your NAICS code should reflect your primary business activity — the one generating the most revenue or value. If Business Support Services describes your main line of business, NAICS 5614 is likely correct. If you have multiple distinct activities, you may need separate codes for statistical reporting. For federal contracting, your SAM.gov registration should use the code that best matches the work you perform. Review the official NAICS 5614 description and exclusions to confirm it fits your operations.
- Do I need a USDOT number for my Business Support Services?
- You need a USDOT number if you operate commercial vehicles over 10,001 lbs GVWR in interstate commerce, transport hazardous materials requiring placards, or transport more than 8 passengers (including driver) for compensation. Most states also require a USDOT number for intrastate operations. Register at the FMCSA Unified Registration System (URS). Failure to register can result in fines up to $16,000 per day.
- What is an MC number and when does a Business Support Services need one?
- An MC (Motor Carrier) number is FMCSA operating authority required for for-hire carriers transporting regulated commodities across state lines. you need MC authority if you transport property or passengers for compensation in interstate commerce. The application fee is $300 per authority type. You must also file BOC-3 (process agent) and maintain BMC-84 or BMC-85 insurance/bond coverage.
- What insurance does a Business Support Services need to operate legally?
- FMCSA requires minimum liability insurance for interstate carriers: $750,000 for general freight (vehicles under 10,001 lbs), $1,000,000-$5,000,000 for vehicles over 10,001 lbs depending on commodity, and $1,500,000-$5,000,000 for passenger carriers (based on seating capacity). Cargo insurance is not federally required but is standard practice. Workers' compensation is mandatory in most states for any employees.
- Does a Business Support Services need to file IFTA quarterly fuel tax returns?
- Yes, if you operate qualified motor vehicles (two axles over 26,000 lbs or three+ axles regardless of weight) across state lines, you must file IFTA (International Fuel Tax Agreement) quarterly returns. IFTA consolidates fuel tax reporting across 48 contiguous states and 10 Canadian provinces into one return. Base jurisdiction is typically your state of registration. Keep detailed mileage and fuel purchase records by jurisdiction.