Catering businesses use principal business activity code 722300 on their federal tax return. The IRS groups caterers under “Special Food Services,” and the same six-digit code applies whether you file as a sole proprietor, a partnership, or an S corporation. You’ll find it in the code list printed at the back of the Schedule C instructions.
What Code 722300 Covers
Code 722300 captures businesses that provide food and beverages for specific events rather than operating a walk-in restaurant. The typical catering operation contracts with a client to serve meals at a wedding reception, corporate luncheon, graduation party, trade show, or similar gathering. Whether you prepare everything in a commercial kitchen and transport it, or cook on-site at the client’s venue, the classification is the same.
Banquet halls that employ their own catering staff also fall under this code. The defining characteristic is the single-event nature of the work: a client picks the date, location, and menu, and you deliver the service for that occasion. That’s what separates caterers from food service contractors, who run cafeterias or dining facilities on an ongoing institutional basis.
The full NAICS system breaks caterers out as 722320, but the IRS consolidates that into the broader 722300 grouping for tax filing purposes. Use 722300 on the return.
Codes for Related Food Businesses
If your operation doesn’t match the single-event model, a different code likely fits better. These are the alternatives that get confused with catering most often:
- 722310, Food Service Contractors. Businesses that run cafeterias, dining halls, or food operations inside another organization’s facility on an ongoing contract. Airline food service companies, hospital cafeteria operators, and concession contractors at sports venues sit here. The distinguishing feature is the long-term contractual arrangement rather than a one-time event.
- 722330, Mobile Food Services. Food trucks, ice cream trucks, coffee carts, lunch wagons, and street food vendors. If you serve food from a motorized vehicle or nonmotorized cart for immediate consumption, this is your code, not the catering code.
- 722511, Full-Service Restaurants. Establishments where patrons order and are served while seated. A restaurant that occasionally caters events uses this code only if restaurant sales bring in more revenue than the catering side.
Choosing a Code When You Do More Than One Thing
The IRS wants the code that matches the activity generating the largest share of your gross receipts. If you run a bakery that also caters events, pull your records and compare total annual revenue from each line of work. Whichever side earns more determines your principal business activity code.
This analysis matters most when a business straddles two categories. A restaurant owner who caters weekend weddings needs to look at whether restaurant sales or catering contracts produced more income during the tax year. The answer can shift from year to year, so run the numbers each time you file.
If you operate two genuinely separate businesses, you don’t combine them under one code. The IRS requires a separate Schedule C for each unrelated business activity. A sole proprietor who runs both a food truck and a catering company files two Schedule C forms, each with its own code. Similar activities can be grouped on a single Schedule C, but unrelated operations must stay separate.1Internal Revenue Service. Instructions for Schedule C (Form 1040)
Where the Code Goes on Your Return
Every federal business return asks for a principal business activity code. The line changes with the form.
Sole Proprietors on Schedule C
Most independent caterers file Schedule C with Form 1040 to report business profit or loss. Line A asks for a written description of your business activity, such as “event catering services.” Line B is where you enter the six-digit code 722300. The description and the code work together to tell the IRS what your business does.1Internal Revenue Service. Instructions for Schedule C (Form 1040)
The full list of codes prints at the end of the Schedule C instructions. Look under “Accommodation and Food Services” for 722300.2Internal Revenue Service. 2025 Instructions for Schedule C (Form 1040)
Partnerships and S Corporations
Partnerships report the principal business activity on Form 1065, entering the code on Item C of page 1 and the business description on Item A.3Internal Revenue Service. Instructions for Form 1065 S corporations do the same on Form 1120-S, entering the code on Item B of page 1.4Internal Revenue Service. Instructions for Form 1120-S Each form has its own code list in the instructions, and 722300 stays the same across all of them.
Does the Wrong Code Trigger a Penalty
Entering the wrong business code does not directly trigger a tax penalty. The accuracy-related penalty under Section 6662 applies to underpayments caused by negligence or a substantial understatement of income, not to administrative classification errors.5Office of the Law Revision Counsel. 26 U.S. Code 6662 – Imposition of Accuracy-Related Penalty on Underpayments
A mismatched code can still raise questions. The IRS compares reported income, expenses, and profit margins against industry averages for the code you selected. If you enter a restaurant code but report the expense patterns of a caterer, the mismatch can invite closer review. Picking the code that actually describes your work is the simplest way to avoid the friction.
One boundary worth flagging: the business code sits on the return purely as a classification. It doesn’t set your tax rate, your deductions, or your filing obligations. Those come from the numbers on the rest of the return, from your entity type, and from the substantive tax rules that apply to your operations. If you file Schedule C as a sole proprietor caterer, self-employment tax, estimated payments, worker classification, and everything else flow from that fact, not from the choice between 722300 and a neighboring code.