Skip to content
USA Classification Hub
Crosswalk USA
HS 6-digit
110900
This HS 6-digit subheading is harmonized internationally. The 1 Schedule B export code(s) and 3 HTSUS import code(s) below share this subheading but diverge at the 8–10 digit national levels.

Schedule B Export Codes (1)

HTSUS Import Codes (3)

Frequently asked questions

What is NAICS 110900?
NAICS 110900 is the North American Industry Classification System code for HS 110900 trade classification. 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 HS 110900 trade classification need?
A HS 110900 trade classification 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 HS 110900 trade classification business in the United States?
To register a HS 110900 trade classification 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 HS 110900 trade classification 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 HS 110900 trade classification 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 HS 110900 trade classification describes your main line of business, NAICS 110900 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 110900 description and exclusions to confirm it fits your operations.
What engagement letter or contract does a HS 110900 trade classification need to use with clients?
Every professional service engagement should be documented in a written letter of engagement or professional services agreement. It should include: scope of services (and what is excluded), fee structure (hourly, flat, contingent — and whether contingent fees are allowed by your profession's ethics rules), payment terms, limitation of liability clause (where permitted), dispute resolution method (mediation/arbitration), and termination conditions. State bar associations and professional societies typically publish model engagement letters. Oral agreements create significant liability risk.
What advertising and solicitation rules does a HS 110900 trade classification need to follow?
Each profession has ethical rules governing advertising. Lawyers: ABA Model Rule 7.1-7.5 (no false/misleading claims, testimonials permitted with disclosures, specialization claims require certification). Accountants: AICPA Code of Conduct prohibits solicitation that creates false expectations or implies ability to influence officials. Real estate agents: must include brokerage name prominently. General FTC rules: all advertising claims must be truthful, not misleading, and substantiated. Using client names or logos requires written consent.
How does a HS 110900 trade classification maintain client confidentiality and data security?
Professional ethical duties of confidentiality apply on top of legal privacy requirements. Lawyers: ABA Model Rule 1.6 and attorney-client privilege require safeguarding all information related to client representation, including implementing technical security measures against cyber threats. Healthcare: HIPAA plus state confidentiality laws. Accountants: IRC Section 7216 prohibits unauthorized disclosure of tax return information (criminal penalty). All should use encrypted email, secure file sharing (not regular email for sensitive docs), password policies, MFA, and written information security plans.
What continuing education (CE/CLE/CPE) does a HS 110900 trade classification need?
Most licensed professions require continuing education. Lawyers: typically 12-15 CLE hours annually including ethics/professionalism credits (state bar requirement). CPAs: CPE hours range from 40-80 per 2-year period plus ethics (AICPA/NASBA standards). Real estate agents: 12-45 hours each renewal cycle (state-specific). Insurance producers: 24 CE biennially (3 hours ethics). Architects and engineers: 12-24 hours annually. Managing brokers have additional CE. Courses must be from approved providers. Carryover limits apply — track carefully to avoid late renewal.

US Tax Forms & Registration

Form NameWho Files ItFrequency
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?

Public Relations Agency Owner

Runs a boutique PR firm securing media coverage, managing crisis communications, and building brand reputation.

Licenses
  • Business license
  • Client representation agreements
Tax Forms
  • Form 1065 or 1120-S
  • Form 940 (FUTA)
  • Form 941
Real Estate Agent

Represents buyers and sellers in residential and commercial real estate transactions as an independent agent.

Licenses
  • State real estate license
  • Brokerage affiliation
  • E&O insurance
Tax Forms
  • Schedule C (Form 1040)
  • Schedule SE (Form 1040)
  • Form 1099-NEC (commissions)
Licensed Architect

Designs residential and commercial buildings, prepares construction documents, and manages permit approvals.

Licenses
  • State architect license (NCARB)
  • Professional liability insurance
  • Business registration
Tax Forms
  • Schedule C or 1120-S (PA/PLLC)
  • Schedule SE
Law Firm Owner

Runs a small law practice specializing in business law, family law, estate planning, or personal injury.

Licenses
  • State bar admission
  • Professional corporation (PC) registration
  • Malpractice insurance
  • IOLTA trust account
Tax Forms
  • Form 1065 or 1120-S (PC)
  • Form 940 (FUTA)
  • Form 941