//Tustin, California
How to start a business in Tustin.
Tustin sits right in the middle of Orange County, where Old Town's walkable First Street meets the fast-growing Tustin Legacy district on the old air base. Here is the practical sequence to register, license, and open, with the official links and where to get free help.
Starting a business in Tustin? The official steps and source links are below.
Already operating or launching with budget in place? You can also
Tustin is really two markets stitched together. Old Town Tustin, along First and Main, keeps a small-town main street feel with independent restaurants, salons, and shops that regulars walk to. A few miles south, the old Marine Corps Air Station has become Tustin Legacy, where The District at Tustin Legacy anchors big-box retail and dining next to thousands of new homes and offices.
Sitting where the 5 and the 55 cross, Tustin pulls customers from Santa Ana, Irvine, Orange, and North Tustin, so your buyer might be an Old Town local on foot or a family that just moved into Tustin Legacy. Each finds you differently. Getting open cleanly, with the right license and permits, is the first step. Getting found afterward is the second. This guide covers the first in detail, then points you to the second at the end.
//The sequence
How to start a business in Tustin, step by step.
This is the order that works for most new Tustin businesses. Requirements vary by entity, location and industry, so use the city, county and state sources below to confirm what applies to yours.
- 1
Call Planning before you sign a lease
Call the Tustin Planning Division at (714) 573-3140 before you sign a lease or buy, for zoning, tenant improvements and signs. Every business located in Tustin completes a Zoning Questionnaire, and a home business also completes the Home Occupation Questionnaire; both are uploaded with the online license application.
- 2
Register the business and the name
Form an LLC or corporation with the California Secretary of State through bizfile Online, or stay a sole proprietor. If you use a name that is not your legal name, file a fictitious business name (DBA) statement with the Orange County Clerk-Recorder within 40 days of starting business. It costs $23 for one name. The first newspaper publication must run within 45 days of filing or the statement expires, then it runs once a week for four weeks and you file the affidavit of publication.
- 3
Get your free EIN and any seller's permit
The IRS says you generally need an EIN to hire employees or to operate a partnership or corporation. It issues the number online, immediately if approved, and never charges for it. If you sell or lease goods that would ordinarily be subject to sales tax, you also need a seller's permit from the CDTFA, which does not charge for it but may ask for a security deposit.
- 4
Get your Tustin Business License
Every business operating in Tustin needs a Business License before it starts and pays the tax every year after. Businesses based elsewhere that work in the city, such as contractors, consultants and landscapers, need one too. Apply online any time; a Business Tax Certificate is typically issued within 2 weeks of a complete application. Business License Technician: (714) 573-3144.
- 5
Pull any industry permits
If you sell or serve food: Every food facility needs a health permit from Orange County Environmental Health before it opens, and a new or remodeled facility needs written plan approval before construction. The first plan review usually takes 20 working days. Permits are not transferable, so a new owner needs a new permit. Some activities in Tustin need a city Business Permit as well. For other permits, GO-Biz offers permitting and regulatory help for any size company.
- 6
Check the $800 California tax rules for your entity
Every California LLC owes the $800 annual tax, even in a year it does no business, until it is cancelled. Corporations owe an $800 minimum franchise tax, but newly incorporated or qualified corporations do not pay it in their first taxable year.
- 7
Use the free help that already exists
The Orange County Inland Empire SBDC offers no-cost help for entrepreneurs across Orange, Riverside and San Bernardino counties. Use it before you pay a consultant.
//Free Tustin checklist
Take the steps with you.
Get the Tustin business checklist with the city, county, state and federal source links in one place, plus the licensing office for every city in Orange County. We keep the source page dated so you can see when it was last checked.
//Common questions
Things we get asked first.
Do I need a business license in Tustin?
Yes. Every business operating in Tustin needs a Business License before it starts and pays the tax every year after. Businesses based elsewhere that work in the city, such as contractors, consultants and landscapers, need one too.
Source: City of Tustin, Business LicensesHow long does a Tustin business license take?
A Business Tax Certificate is typically issued within 2 weeks of a complete application. You can apply online at any time, with the Zoning Questionnaire uploaded alongside it.
Source: City of Tustin, Business LicensesCan I run a business from my home in Tustin?
Yes, with a Business License. A home business completes both the Zoning Questionnaire and the Home Occupation Questionnaire and uploads them with the online application.
Source: City of Tustin, Business LicensesHow do I open a restaurant in Tustin?
Beyond the Tustin Business License, every food facility needs a health permit from Orange County Environmental Health. A new or remodeled facility needs written plan approval before construction, with 3 sets of plans, and the first review usually takes 20 working days. Preliminary and final inspections come at 80% and 100% completion, and the permit is issued after the final inspection.
Source: OC Health Care Agency, Food Facility Health PermitHow do I register a business name in Orange County?
If you use a name that is not your legal name, file a fictitious business name (DBA) statement with the Orange County Clerk-Recorder within 40 days of starting business. It costs $23 for one name. The first newspaper publication must run within 45 days of filing or the statement expires, then it runs once a week for four weeks and you file the affidavit of publication.
Source: Orange County Clerk-Recorder, Fictitious Business NameWhere can I get free help starting my business?
The Orange County Inland Empire SBDC offers no-cost help for entrepreneurs across Orange, Riverside and San Bernardino counties. Use it before you pay a consultant.
Source: Orange County Inland Empire SBDC//Already operating?
The marketing question starts after the filing question.
If the business is already open, or the launch is funded, tell our founders what you want to change. We will look at the business before recommending SEO, paid media, the website or anything else.
For operating businesses and funded launches with budget available to act on the plan.
//Bookmark these
Official Tustin, Orange County, and California resources.
Every link here goes straight to a government or nonprofit source. These are the agencies that actually issue your registrations and permits, so go to them directly rather than a paid middleman.
- City of Tustin: Business Licenses
A Business License before you start, then an annual tax. Every location files a Zoning Questionnaire. Apply online any time. (714) 573-3144.
- County of Orange: Apply for a Business License
The county's links to the business license office of each of Orange County's 34 cities.
- County of Orange: Starting a Business
The county lists no general business license for unincorporated areas and points those businesses to the fictitious business name filing.
- Orange County Clerk-Recorder: Fictitious Business Name
$23 for one name, plus $7 for each additional name and each registrant after two. The first publication must run within 45 days of filing or the statement expires.
- OC Environmental Health: Food Facility Health Permit
Needed by every food facility, from restaurants and markets to carts and event booths. Small displays of prepackaged food only register. (714) 433-6000.
- Orange County Assessor: Business Property Statement
Form 571-L is due April 1 if your business equipment cost more than $100,000 in total or the Assessor asks. A 10% penalty applies after May 7. (714) 834-2930.
- OC Development Services
Zoning and building for businesses in unincorporated Orange County.
- Orange County Inland Empire SBDC (free advising)
No-cost help for entrepreneurs across Orange, Riverside and San Bernardino counties. (800) 616-7232.
- CA Secretary of State: bizfile Online
Where LLCs and corporations file with the California Secretary of State.
- IRS: Get an EIN
Your federal tax ID. Apply online and, if approved, the number is issued immediately. The IRS never charges a fee for an EIN.
- CDTFA: Seller's permit
Required if you sell or lease goods that would ordinarily be subject to sales tax. The CDTFA does not charge for it, though it may ask for a security deposit.
- Franchise Tax Board: LLC $800 annual tax
Every LLC doing business or organized in California owes the $800 annual tax, even in a year it does no business, until the LLC is cancelled.
- Franchise Tax Board: Corporation minimum tax
Corporations owe an $800 minimum franchise tax, but newly incorporated or qualified corporations do not pay it in their first taxable year.
- GO-Biz: Permit & Regulatory Assistance
The Governor's Office of Business and Economic Development says it will assist any size company with permitting and regulatory questions.
//Our work
View our case studies
Five businesses we have grown, including our own. Every number on these pages is one we can show you.

Method of Beauty
406 newly ranking keywords in three months
Meta clicks cost 60% less than the average advertiser pays.

Technology company
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In four months, from a brand-new domain and no marketing team.

Body Juice
From farmers' market cart to 600% customer growth
One of our founders' own businesses, built on a founder's budget.
Read the case studyRead the Body Juice case study
Romeé
From a name to a brand, four can labels and a Shopify website
Logo system, four production-ready can labels and a custom website integrated with Shopify.
Read the case studyRead the Romeé case study
Wheelhouse
From page 3 to the top 3 for 300+ keywords
In a category that bans most advertising.
Read the case studyRead the Wheelhouse case study