Microenterprise Home Kitchen Operations Permit Requirements

To operate legally under California’s Microenterprise Home Kitchen Operations permit requirements, you need to confirm your county participates in the program, earn a Food Safety Manager Certificate, submit an application packet to your local environmental health agency, pass an in-home kitchen inspection, and keep your business inside strict limits on meals, revenue, food types, and advertising. The program was created by Assembly Bill 626 in 2018 and expanded by Assembly Bill 377 the following year.¹ Skip a step and you cannot legally serve a single meal.

First Check Whether Your County Participates

California counties are not required to allow MEHKOs. Each county must individually adopt an ordinance or resolution authorizing the program before its local health department will accept applications.² If yours has not opted in, no application exists to file.

The California Department of Public Health does not maintain a public list of participating counties. Call your county’s environmental health department directly and ask. Los Angeles and San Diego run active programs, among others, but many smaller counties have not adopted one. If your county is not on board, the alternative is the separate Cottage Food Operation program, which has narrower food options and different rules.

Meal and Revenue Caps

The California Health and Safety Code caps MEHKO gross annual revenue at $100,000, adjusted each year for inflation based on the California Consumer Price Index.³ Exceeding the cap strips your microenterprise status and subjects you to full commercial food facility regulations.

Daily production is capped at 30 individual meals, and you cannot exceed 90 meals in a single week.³ Your local enforcement agency can lower those numbers based on the actual capacity of your kitchen, but it cannot raise them. Selling individual sides or entrees separately does not get around the limit: the statute counts the approximate meal equivalent.

What You Can and Cannot Sell

MEHKOs can serve cooked meals that include meat, poultry, and seafood. That range is broader than most home-kitchen permits allow. Three limits trip up new operators.

You cannot produce dairy products of any kind. Cheese, ice cream, yogurt, sour cream, and butter are all off the table, even as a from-scratch component of a dish.¹ Cooking with store-bought dairy is fine; manufacturing dairy yourself is not.

Every meal must be prepared, cooked, and served to the customer on the same calendar day. No batch cooking on Sunday for the week ahead, no freezing portions for later orders. In practice, this makes a MEHKO a made-to-order kitchen.

A MEHKO cannot function as a catering service. You cannot use the word “catering” in any advertising, and the statute explicitly excludes catering operations from the MEHKO definition.¹

The Application Packet

You cannot legally serve a single meal without a permit from your local environmental health agency.⁴ Before you apply, earn a Food Safety Manager Certificate from an accredited provider. This is a longer, more rigorous course than a Food Handler Card. If anyone else works in your kitchen, each person needs a valid Food Handler Card. Your Food Safety Manager Certificate covers you personally, but not your helpers.⁵

A typical application packet includes:

The county’s permit application form, covering your proposed menu, hours of operation, and food categories (shelf-stable versus temperature-controlled).
A self-certification checklist confirming your kitchen meets baseline safety requirements.
Proof of potable water from an approved source.
Proof of a functional, approved sewage disposal system.
Written standard operating procedures for handling, storing, and preparing food safely.

Fees vary by county. Some charge a flat permit fee; others bill an hourly plan-check fee plus an annual permit fee. Expect initial costs in the range of a few hundred dollars with annual renewal fees on top. One smaller county, for example, charges $135 per hour for plan review plus a $269 annual permit fee. Contact your local environmental health department for exact figures.

Most operators run as sole proprietors and can use a Social Security number for taxes, though an EIN is required if you hire employees, form a partnership or LLC, or pay excise taxes. The IRS issues them online for free.⁶ Your city or county may also require a general business license or home occupation permit, separate from the health permit.

The Home Inspection

Once your application is processed and fees are paid, a health officer schedules a mandatory inspection of your home kitchen. The inspector reviews your equipment, storage, water source, waste disposal, handwashing setup, and overall cleanliness, and verifies that the physical space matches what you submitted on paper.

After your initial permit issues, your kitchen is subject to three types of inspections: routine inspections, investigation inspections triggered by complaints, and emergency inspections prompted by imminent health threats.¹ Outside those three categories, the enforcement agency cannot inspect your home. The Legislature set that limit because you are operating inside a private residence.

Your permit requires annual renewal and payment of the recurring permit fee. Let it lapse and you must stop selling food until you renew.

Kitchen and Sanitation Standards

Your home kitchen must meet California’s core retail food safety standards, scaled to a residential setting. You need access to potable water for cooking and cleaning, a functioning wastewater system, and a handwashing station with warm water, soap, and single-use towels. A bathroom sink in an adjacent room does not satisfy the handwashing requirement if it is not immediately accessible from the kitchen workspace.

Temperature control is where inspectors concentrate:

Refrigerated items must stay at or below 41°F.
Cooked food held for service must remain at 135°F or above.

Pets are banned from the kitchen during any food preparation, cooking, or packaging. Anyone with a contagious illness or open wound cannot work in the kitchen until the condition resolves. A violation during an investigation inspection can result in permit suspension.

You may operate an outdoor barbecue or wood-burning oven as part of your MEHKO.

Sales, Delivery, and Advertising Rules

Every sale must be a direct transaction between you and the customer. You cannot sell your food through a wholesaler, grocery store, or any other retail intermediary.⁷ Customers can pick up at your home, eat on-site (in which case you must provide restroom access), or receive delivery.

Orders can come through a website, app, or internet food service intermediary. Delivery is the catch: you cannot use third-party services like DoorDash, Uber Eats, or Grubhub. Delivery must be handled by you or by an employee of your MEHKO who holds a valid Food Handler Card. One exception exists: a third-party service can deliver to a customer whose physical or mental disability prevents them from picking the food up themselves.¹

Any advertisement, whether a website, social media post, or printed flyer, must include three pieces of information: the name of the enforcement agency that issued your permit, your permit number, and the statement “Made in a Home Kitchen” in a clear and visible location.¹ For verbal advertisements such as a radio spot, the disclosure must be audible and understandable. You must also display your permit or provide a copy to customers at the time of sale. The ban on the word “catering” extends to all advertising, including listings on internet food service intermediaries.

Insurance Your Homeowners Policy Will Not Cover

Standard homeowners and renters policies almost always exclude claims arising from a food business run out of the home. A customer who gets sick or is injured at your home would be pursuing a claim your personal policy will not pay. You will likely need a commercial general liability policy that covers food-related claims, including product liability for foodborne illness. Policies for small food businesses typically run several hundred to over a thousand dollars per year depending on coverage limits, often with $1 million per-occurrence and $2 million aggregate limits.

If you use your personal vehicle to deliver meals, check your auto policy. Many personal auto policies exclude deliveries made for commercial purposes, and you may need a business-use endorsement.

Taxes and Records

MEHKO income is self-employment income. You must file a return and pay self-employment tax if your net earnings reach $400 or more in a year, regardless of whether you receive a 1099.⁸ The self-employment tax rate is 15.3%, covering Social Security (12.4%) and Medicare (2.9%), on top of regular income tax. Ordinary business expenses like ingredients, packaging, cleaning supplies, permit fees, your Food Safety Manager Certificate, and delivery mileage are deductible.

Separately, track every meal you sell and every dollar of revenue. You need daily counts to prove compliance with the 30-meal and 90-meal limits, and gross revenue records to stay under the annual cap. Local health departments can audit these figures. For tax purposes, keep financial records at least three years after filing; if you underreport income by more than 25% of your gross, the IRS extends that window to six years.⁹ Holding onto everything for at least seven years eliminates the guesswork.

1
California Legislative Information. California Assembly Bill 377 – Microenterprise Home Kitchen Operations
2
California Department of Public Health. General Permit Requirements for Microenterprise Home Kitchen Operations
3
California Legislative Information. California Health and Safety Code HSC 113825
4
California Legislative Information. California Health and Safety Code HSC 114367.2
5
County of Santa Clara. Apply for Microenterprise Home Kitchen Operations Permit
6
Internal Revenue Service. Get an Employer Identification Number
7
Los Angeles County Department of Public Health. Microenterprise Home Kitchen Operation MEHKO
8
Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes)
9
Internal Revenue Service. How Long Should I Keep Records