How it works. Pick the state, who owns the name and the date the registration was filed. You get the expiry or renewal date, when the renewal window opens, the state fee where we confirmed it, and any newspaper deadline, with the official link.
Find your DBA renewal or expiry date
Illinois business name rules
- Called
- assumed business name (assumed name for LLCs and corporations)
- Where to file
- Individuals and partnerships file an assumed name certificate with the county clerk where the business is located (Assumed Business Name Act, 805 ILCS 405). LLCs and corporations file an application with the Secretary of State.
- Fee
- Secretary of State, for an LLC or corporation: $150 in a year ending in 0 or 5, then $120, $90, $60 and $30 in years ending in 1/6, 2/7, 3/8 and 4/9; renewal is $150. The county clerk sets its own fee ($19 in Stephenson County).
- How long it lasts
- The county pages we read don't say how long an individual's certificate lasts. For an LLC or corporation: runs until the first day of its anniversary month in the next year divisible by 5 (filed in the two months before that month in such a year, it runs to the following one). Renew within the 60 days before, for five years, on the annual report.
- Newspaper notice
- County filings: publish once a week for three consecutive weeks, the first within 15 days of filing, and get the certificate of publication to the county clerk within 50 days of filing or the registration is void.
- Online filing
- Not confirmed on an official page.
Add the filing date above to put this on a date. Source: Stephenson County Clerk: Registration of assumed names (DBAs)
Reading the result
"Expires" is the last day the registration runs under the state's rule. "Renewal can be filed from" is the start of the window the state allows, such as six months before in Texas, Ohio and Maryland, 90 days in North Dakota or July 1 in Florida. Where a state's pages describe a renewal without a fixed length, as Minnesota's annual renewal does, you get the rule in words.
For every state at once, see DBA registration by state.
General information, not legal advice; we are not lawyers. Checked November 2026 against the official pages linked in each result. Fees and forms change, and a county or town office can add its own steps, so confirm with the filing office before you file. We don't file DBAs or trade names for anyone.
Questions about the calculator
How does the calculator count?
It reads the state's rule from our table and counts from the filing date you enter. A five-year rule lands on the same day five years later (February 29 becomes February 28). Florida and Alaska run to December 31 of the fifth year, Michigan's state filings to December 31 of the fifth full calendar year, and Colorado's individual trade names to the first day after the anniversary month.
Which date counts as the filing date?
The date the office accepted or filed the registration, as shown on your certificate or the state's record. Maryland counts from SDAT's acceptance and Arizona from the date the office receives it. If your certificate shows an expiration date, that date wins over this calculator.
How are the newspaper deadlines worked out?
Only from day counts an official page states: Illinois' 15 days to start and 50 days for proof, California's 30-day start (45 days in some counties) and four weekly runs, Florida's notice before filing. Where a page names no deadline, as in Georgia and Minnesota, the result says so instead of inventing one.
Why does it ask whether an LLC or a person owns the name?
Several states file and time them differently. Texas certificates from the Secretary of State and the county run on separate rules, Colorado entity trade names last as long as the entity is in good standing, and Illinois ties an LLC's or corporation's name to its anniversary month.
Does the calculator store what I enter?
No. The page reads your choices from the address bar, works out the dates on the server and shows them. Nothing is saved, and it works without JavaScript.