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Illinois DBA

In Illinois you can file your DBA (a.k.a. trade name, assumed name or fictitious business name) yourself with your local County Clerk's office. Or, use a legal document service such as LegalZoom to handle the entire process for you.

LegalZoom charges $99.00 plus state filing fees for Illinois DBA's. Click here to learn more about pricing.


What is a DBA?

DBA, short for "doing business as", is a formal declaration that an individual, company or organization is conducting business under a different name. DBA's are commonly referred to as a fictitious business names, assumed business and trade names. All these terms mean the same thing. Read more.

What is the difference between a fictitious business name and a DBA “doing business as” name? Read More

If I have a corporation or an LLC name, do I also have to file a DBA under that name as well? Read More

If I am operating a sole proprietorship under my personal name, do I need to file a DBA? Read More


Illinois Small Business Statistics

(Information provided by U.S. Census Bureau)

Number of Establishments by Employment-size class

Industry Code

Total Establishments

'1-4'

'5-9'

'10-19'

11

311

51

24

23

21

325

87

84

58

22

191

66

60

81

23

19,606

4,881

2,931

1,788

31

5,314

2,698

2,750

2,767

42

10,476

3,961

2,926

2,066

44

19,043

11,256

6,963

4,042

48

5,818

1,338

1,025

876

51

2,864

879

750

619

52

13,203

4,082

2,637

1,671

53

8,248

2,107

1,245

453

54

25,718

4,945

3,105

1,909

55

742

293

305

351

56

8,636

2,085

1,533

1,314

61

1,328

414

397

463

62

13,175

6,371

4,160

2,399

71

2,395

547

458

433

72

9,054

4,142

4,466

4,738

81

19,394

7,144

3,854

1,774

95

162

91

125

93

99

840

38

8

2

Total

166,843

57,476

39,806

27,920



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