The short answer: your EIN must use your LLC's exact legal name, but your domain doesn't have to match your LLC at all. Check the name in all three places on the same day, register the domain as soon as the checks pass, then form the LLC and get the EIN after the state approves it.
When I teach marketing in Local First Arizona's Fuerza Local business accelerator, this question comes up often: "Does my website have to say exactly what my LLC paperwork says?" People stall for weeks because they think every name has to be identical. It doesn't. Some names must match to the letter, others can be different, and knowing which is which saves you money and paperwork.
Your LLC, EIN and domain are three separate registrations
Your LLC name, your EIN record and your domain are filed with three different places, and each follows its own rules. The U.S. Small Business Administration explains that a business name can be registered in several independent ways, and that your domain doesn't need to be the same as your legal business name, your trademark or your DBA.
Here is how it works for a made-up business, a landscaping company whose paperwork says "Lomas Doradas Landscaping LLC":
| Name | Where it's filed | Must it match the LLC? | Example |
|---|---|---|---|
| Legal name (LLC) | Your state's business filing office | It is the reference for everything else | Lomas Doradas Landscaping LLC |
| EIN | IRS | Yes, exactly | Lomas Doradas Landscaping LLC |
| Business bank account | Your bank | Yes, it uses the legal name and EIN | Lomas Doradas Landscaping LLC |
| Trade name or DBA | State or county, depending on where you are | No, that's the point of it | Lomas Doradas Yards |
| Domain | A domain registrar | No | lomasdoradas.com or lomasdoradasaz.com |
| Google Business Profile | No, it must match the name customers see | Lomas Doradas Landscaping |
This site is a real example. The company behind it is Link Socially LLC, doing business as Force Domains, and the domain is forcedomains.com. The domain follows the brand customers know, not the LLC.
The EIN must use your LLC's exact legal name
Your EIN application has to use the legal name exactly as it appears on the LLC documents your state approved. The IRS asks LLCs to form the entity with the state before applying for an EIN and warns that applying first can delay the application. The application has a separate, optional field for a trade name, so you never need to squeeze your brand into the legal-name line.
- Copy the name character by character from your approved articles of organization, including "LLC" and any punctuation.
- Apply directly on irs.gov. The IRS says you never have to pay for an EIN and warns about websites that charge for one.
- If you change the LLC's name later, update it with the state first, then follow the IRS business name change steps; that page explains when a name change may require a new EIN.
Your bank will compare the name on your EIN letter with your state documents when you open the business account, so a typo here is the mismatch that actually causes trouble.
Your domain can differ from your LLC name
A domain is your address online, not a legal registration of your business name. You can add a word to it, shorten it or use your brand instead of the legal name, and none of that changes your LLC or requires a filing. What matters for a domain is that customers can remember it, spell it after hearing it once and connect it to the name on your truck, sign or invoice.
| Pattern | Example | When to use it |
|---|---|---|
| Brand only | lomasdoradas.com | The best choice when it's free: short and easy to say. |
| Brand + service | lomasdoradaslandscaping.com | Tells people what you do; good for a new business nobody knows yet. |
| Brand + state | lomasdoradasaz.com | When a business in another state already has the plain name. |
| Brand + short word | lomasdoradasyards.com | A shorter fit for trucks, yard signs and caps. |
| Avoid | lomasdoradaslandscapingllc.com | Customers don't say "LLC" and won't type it; it only makes the domain longer. |
If the plain name is taken, see nine ways to find a domain that still works.
A different public name may need a DBA, but a domain doesn't
A DBA ("doing business as," also called a trade name or assumed name) is about the name you present to customers, not about your web address. If your LLC is "Lomas Doradas Landscaping LLC" and your trucks, invoices and website all say "Lomas Doradas Yards," you are operating under a name that isn't your legal name. Whether that requires a filing depends on where you are: the SBA notes that DBA requirements vary by state, county and city.
- In Arizona, the Secretary of State's trade name registration is a voluntary statewide filing. Other states and counties require a filing before you use the name, so check your own state.
- Even where it's optional, ask your bank. Many banks won't deposit checks made out to a name that isn't on the account, and a registered trade name is how you add it.
- Using your legal name with "LLC" left off, like "Lomas Doradas Landscaping," is how most businesses appear in marketing. Ask your state whether that alone needs a filing.
The domain itself never needs a DBA. You can register lomasdoradasaz.com without filing anything, as long as the name customers see stays consistent with your paperwork.
The order to check and register everything
Check the name in every place on the same day, then register in the order that protects you most. The domain is the only one of the three that someone else can take in minutes, and it's also the cheapest to lose if you change your mind.
Shortlist three names and say them out loud
Try each one the way you'd say it on the phone. If you have to spell it, keep looking.
Search your state's business name database
In Arizona that's the Arizona Corporation Commission. Keep in mind that the Commission only checks whether a name is distinguishable from names on file; its approval doesn't give you rights to the name.
Search federal trademarks
A state approving your LLC doesn't mean the name is free to use. Run it through the USPTO trademark search, especially if you plan to grow beyond one city.
Check the domain and two modifiers
Search the plain name plus one or two of the patterns above, and check the social handles you'll want at the same time.
Register the domain the same day
A .com costs $24.99 a year at our current price. If the LLC doesn't exist yet, register it in your own name and change the organization on the registration to the LLC once the state approves it. Domain registration includes change of registration.
File your LLC with the state
Use the exact legal name you checked in step 2.
Get your EIN from the IRS after approval
Copy the legal name exactly. Add a trade name only if you use one.
Open the bank account, then file a DBA if you need one
Bring the state approval and the EIN letter. Ask the bank how it handles checks made out to your brand name.
Set up email and your Google Business Profile
Use the name customers will see on your sign and invoices. Google asks that your profile name reflect your real-world business name, as used consistently on your storefront, website and stationery.
What happens when the names don't match
Most mismatches are harmless. A few cause real problems, and the worst one has nothing to do with spelling.
| Mismatch | Is it a problem? | What to do |
|---|---|---|
| Domain is different from the LLC | No | Show your legal name in the website footer and on invoices so customers can connect the two. |
| EIN name differs from state records | Yes | Correct it with the IRS before you open accounts or file returns. |
| Brand on trucks and invoices, no DBA where one is required | It can be | Check your state and county rules, and ask your bank about deposits. |
| Google profile name differs from your signs | It can be | Use the same public name everywhere. Don't add services or cities to the name. |
| Domain registered under your web designer's or an employee's name | Yes, the biggest one | Whoever is listed as the registrant controls the domain. Make sure it's you or your LLC. |
That last row is the one that causes the most trouble. The registrant is the person or organization a domain is registered to, and ICANN, which oversees domain names, publishes the rights and responsibilities that come with it. If someone else registered it for you, ask them to transfer it into your name now, while you're on good terms.
Your business email follows the domain, not the LLC
Once the domain is yours, your email can match it: hello@lomasdoradas.com reads as a real business on an estimate in a way a free address doesn't. Business email starts at $4.99 a month per inbox, and it keeps working the same way if you ever rename the LLC, because the address belongs to the domain.
For everything else a new business needs to get online, and what the first year costs, read what you need for a business website and what a small business website costs.
This guide explains how names work in general. It isn't legal or tax advice. For your situation, ask your state's business filing office, a tax professional or an attorney.