Local market data · Accounting firms · Chicago

AI for accounting firms in Chicago

The Chicago metro area had 1,818 accounting firms in 2022, the 4th most of 386 US metros and 3% of all in the country. They employed 27,139 people at an average of $110,543 a year. 85% have fewer than 10 staff, so the same few people answer the phone, book, follow up and do the paperwork. Those are the jobs AI tools take on today.

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Accounting firms in Chicago vs the US

Chicago metroUnited States
Businesses1,81855,642
People employed27,139572,944
Average staff per business14.910.3
Average yearly pay per employee$110,543$97,895
Share with fewer than 10 staff85%84%

Pay here is 13% higher than the national average for accounting firms, so every hour of staff time costs more to spend on admin. The average accounting firm here has 14.9 people on payroll, 45% higher than the US figure of 10.3.

How big accounting firms in Chicago are

Fewer than 5 staff1,252 (69%) US 65%
5 to 9297 (16%) US 19%
10 to 19155 (9%) US 9%
20 to 4965 (4%) US 4%
50 or more49 (3%) US 3%

Businesses with paid employees, by number of employees, March 2022.

Accounting firms by county in the Chicago area

Cook County has the most, with 1,014 of the metro's 1,818 (56%). Among the 10 big metros on this page, Chicago ranks 7th for average pay and 7th for the share of small firms.

CountyBusinessesEmployeesAvg pay
Cook County1,01421,396$117,594
DuPage County3042,724$93,160
Lake County1541,210$93,574
Will County92427$58,867
Kane County78521$82,946
Lake County72376$56,771
McHenry County44214$60,308
Porter County2592$52,707
Grundy County1556$59,768
DeKalb County1367$52,866
Jasper County439$45,077
Kendall County317$52,412

Census withholds pay where few firms would make it identifiable.

Where AI helps a accounting firm first

An accounting firm gets the most from AI by automating the chasing: missing documents, unsigned engagement letters, repeat client questions and deadline reminders. Technical judgment and sign-off stay with the CPA or preparer. Westward can build these pieces on the firm’s own accounts, with a person approving anything that goes out.

What your team's admin hours cost in Chicago

Change any number. The starting values are the Chicago averages above; the hours and the share are yours to set.

Those hours cost you$318,000 a year

The share you would hand off$95,400 a year

Hours your team gets back1,800 a year

See what we would build for this

Guides for accounting firms, one job each

Accounting firms in other big metros

MetroBusinessesAvg payRank of 387
Los Angeles3,514$105,5232nd
New York4,261$125,3401st
Miami2,009$93,0493rd
Dallas1,197$109,3015th
Houston1,037$115,4748th
Atlanta1,179$112,1836th
Washington1,065$128,6517th
Philadelphia1,028$112,3889th
Boston834$127,14111th

Where these numbers come from

From the U.S. Census Bureau, County Business Patterns 2022 (released 2024), industry code NAICS 541211 (Offices of certified public accountants), for the Chicago-Naperville-Elgin, IL-IN metro area (13 counties). It counts businesses with paid employees in March 2022, so solo owners with no payroll are not in it. Average pay is total yearly payroll divided by employees. The calculator uses 50 working weeks and 2,080 hours a year. Page checked 2026-11-12.

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