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NAICS 2022 industry USA Verified: Census NAICS 2022 · 2023-03-17
31121

NAICS 31121 — Flour Milling and Malt Manufacturing

Flour Milling and Malt Manufacturing

NAICS 31121 is the NAICS industry code for flour milling and malt manufacturing 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 31121?

1 Registering on SAM.gov for federal contracting — enter NAICS 31121 as your primary industry code.
2 Checking whether the SBA size standard for flour milling and malt manufacturing applies to your business for set-aside contracts or loans.
3 Classifying your main line of business when applying for grants, contracts, loans, or market research surveys.
4 Comparing this code against legacy NAICS 2017 records or related SIC codes for historical data alignment.

NAICS hierarchy path

Trace the classification from the broadest sector down to this national industry code.

Cross-references & crosswalks

How to register a flour milling and malt manufacturing business in the US

1
Verify NAICS classification

Confirm that Flour Milling and Malt Manufacturing matches your manufacturing or production activity.

2
Register for an EIN (Form SS-4)

Required for most manufacturing entities.

IRS EIN application
3
Comply with OSHA manufacturing safety standards

General industry standards (29 CFR 1910) apply; maintain workplace safety programs and records.

4
Register for state/local business license

Manufacturing operations typically require a general business license from the city or county of operation.

5
Apply for EPA permits (if applicable)

Air, water discharge, or hazardous waste permits may be required depending on production processes.

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?

CNC Machine Shop Owner

Runs a precision machining shop producing custom metal parts for aerospace, automotive, and medical clients.

Licenses
  • City manufacturing permit
  • EPA air quality permit (if emissions)
  • OSHA compliance program
Tax Forms
  • Form 1120 or 1120-S
  • Form 940 (FUTA)
  • Form 941
  • State manufacturing tax exemption
Custom Furniture Maker

Designs and builds handcrafted wood furniture for residential and commercial clients from a workshop.

Licenses
  • Business license
  • Wood dust collection (OSHA)
  • Liability insurance
Tax Forms
  • Schedule C (Form 1040)
  • Schedule SE (Form 1040)
  • State sales tax
Apparel/Garment Manufacturer

Produces cut-and-sew clothing lines for private labels, boutiques, and direct-to-consumer fashion brands.

Licenses
  • Business license
  • FTC textile labeling compliance
  • Fire safety permit
Tax Forms
  • Form 1065 or 1120-S
  • Form 940 (FUTA)
  • Form 941
Craft Brewery Owner

Produces and packages craft beer for taproom sales, self-distribution, and wholesale distributor networks.

Licenses
  • TTB Brewer's Notice
  • State brewery/manufacturer license
  • Tied-house compliance
  • FDA registration
Tax Forms
  • Form 1120 or 1065
  • TTB excise tax return (quarterly)
  • State excise tax

Child codes (3)

Frequently asked questions

What is NAICS 31121?
NAICS 31121 is the North American Industry Classification System code for Flour Milling and Malt Manufacturing. 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 Flour Milling and Malt Manufacturing need?
A Flour Milling and Malt Manufacturing 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 Flour Milling and Malt Manufacturing business in the United States?
To register a Flour Milling and Malt Manufacturing 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 Flour Milling and Malt Manufacturing 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 Flour Milling and Malt Manufacturing 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 Flour Milling and Malt Manufacturing describes your main line of business, NAICS 31121 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 31121 description and exclusions to confirm it fits your operations.
What environmental permits does a Flour Milling and Malt Manufacturing need?
Manufacturing operations typically need several environmental permits. Air quality: state operating permit or Title V permit if emitting above thresholds (Clean Air Act). Water: NPDES permit for process wastewater discharge (Clean Water Act). Hazardous waste: RCRA generator ID and manifest tracking for waste disposal. Stormwater: multi-sector general permit (MSGP) for industrial stormwater runoff. Tier II reporting for hazardous chemical storage above 10,000 lbs (EPCRA). All permits are through your state environmental agency or EPA regional office.
What OSHA requirements are unique to manufacturers for a Flour Milling and Malt Manufacturing?
OSHA Process Safety Management (PSM) applies to facilities handling highly hazardous chemicals above threshold quantities (29 CFR 1910.119). Machine guarding (1910.212) is one of the most cited standards. Lockout/Tagout (1910.147) for hazardous energy control during maintenance. Hazard Communication Standard (1910.1200) requires SDS sheets, chemical labeling, and employee training. Respiratory protection program with medical evaluation and fit testing if respirators are required. Confined space permit program if entering tanks, pits, or vats. Noise monitoring and hearing conservation if levels exceed 85 dBA TWA.
Does a Flour Milling and Malt Manufacturing need to register with the FDA as a manufacturing facility?
Yes, if you manufacture, process, pack, or hold FDA-regulated products (food, dietary supplements, cosmetics, medical devices, drugs, tobacco), you must register your facility with the FDA and renew biennially. Medical device manufacturers need establishment registration and device listing (21 CFR Part 807). Drug manufacturers and repackagers must register and list products via NDC codes. Cosmetic facility registration and product listing became mandatory under MoCRA (2022) with new requirements for adverse event reporting and GMP compliance.
What labeling requirements apply to manufactured products for a Flour Milling and Malt Manufacturing?
Consumer products must comply with various labeling rules. Textile, wool, and fur products: FTC labeling with fiber content, country of origin, and manufacturer RN number. Electronics: FCC Part 15 compliance statement. Children's products: CPSC tracking label and Children's Product Certificate (CPC). Made in USA claims: FTC Enforcement Policy applies (all or virtually all US-made). California Proposition 65 warning if products contain listed chemicals. Country of origin marking (Customs 19 CFR Part 134) for imported goods.

Official resources

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