<img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=351166518341071&amp;ev=PageView&amp;noscript=1">
Skip to main content

«  View All Posts

small business taxes /
small business payroll /
small business accounting

Best Monthly Accounting and Payroll Services for Small Businesses in Aurora, IL (Reviews / Ratings)

October 1st, 2026 | 13 min. read

By Miranda Evers

Illinois state road sign with text: Best choice Aurora monthly accounting & payroll services

You own a small business in Chicagoland near Aurora, and you’ve been swamped handling accounting and payroll yourself… or you’ve gone through the same experience that many others have with the big-name providers.

How do you fix this? Find a reputable, local accounting and payroll provider to help you get back on your feet.

Prospective clients sometimes ask us who our competitors are so they can do their research. Since we're not the right fit for everyone, we encourage them to consider all of their options.

Here are the top four small business accounting and payroll firms in the Aurora, Illinois area:

  • CSI Accounting & Payroll.
  • Ochoa Taxes CPA.
  • Flex Tax and Accounting LLP.
  • Lauzen Accounting.

Criteria We Used

The criteria used to declare these the top services in the area include the basics, like how long they've been in operation and what their Google reviews and reputation are like.

Then there's our personal rankings.

A high Website Experience Score means the website looks modern, is easy to navigate, has a search bar or live chat, features an information center or database, and has a transparent, easy-to-find pricing page.

A high Service Range Score means they clearly advertise what their services entail, they have a large range of services, and they provide services that are not commonly provided.

Firm Name

Year Founded

Google Reviews

Website Experience Score

Service Range Score

CSI Accounting & Payroll

1966

4.9 stars (521 reviews)

9

9

Ochoa Taxes

2007

4.8 stars (828 reviews)

6

9

Flex Tax and Accounting

Unclear

5.0 stars (33 reviews)

6

7

Lauzen Accounting

Unclear

5.0 stars (89 reviews)

6

9

Scroll for more information on the firms! These are listed in no particular order.

CSI Accounting & Payroll

CSI Accounting & Payroll was founded in 1966 and eventually purchased by an employee, Brian Paulson, in 2002. Today, we’ve grown to three locations, including one in Aurora, IL, that total over 500 Google reviews.

Unlike other accounting firms, we only work with small businesses and their owners, prioritizing your service instead of getting bogged down with individual taxes or large-scale payrolls.

The accounting services that we offer include:

  • Monthly Balance Sheets & Income Statements.
  • Monthly bank reconciliations.
  • Year-round tax planning.
  • Business tax projections, preparation, and filing.
  • Individual tax filing (if also a business client).
  • Proactive financial support & unlimited one-off questions.
  • Audit representation.
  • Consulting projects.
  • Detailed general ledgers.
  • Census Bureau reports.
  • Responding to IRS & State notices.
  • Annual Secretary of State filings.
  • Buying or selling a business or building.
  • Entity formation or filings.
  • Loan procurement assistance.

The payroll services that we offer include:

  • Conducting annual workers' compensation audits.
  • Workers' compensation audit reports.
  • Timekeeping services.
  • PTO tracking.
  • HR & 401(k) services.
  • Garnishments and voluntary deductions.
  • W-2s & 1099s.
  • Amending W-2s.
  • New hire reporting.
  • Software integrations.
  • Multi-state tax account setup & compliance.
  • Direct deposits to HSA or FSA accounts.
  • Retirement plan reporting.
  • Quarterly payroll & unemployment tax return amendments.
  • Employee verifications.
  • Payroll check processing.
  • Direct deposit.
  • Electronic payroll tax payments.
  • Federal (941) & State withholding tax returns.
  • Federal (940) & State unemployment tax returns.
  • Payroll tax audit representation.
  • Personal portal logins for your employees.
  • Employer portal login for your admin account.
  • Standard report package:
    • Cash requirement report
    • Payroll journal report
    • Check register report

Thinking of working with CSI? Estimate your investment here!

Ochoa Taxes

Ochoa Taxes CPA has two locations: Aurora and Melrose Park, IL. Between these two offices, they’ve collected over 800 Google reviews. That’s truly impressive!

Founded in 2007, they are the area’s go-to experts for English and Spanish speakers alike. They also only work with small business owners, keeping them available to serve their ideal client base.

Their services include:

  • Business tax preparation and filing.
  • Small business accounting:
    • Financial statement preparation.
    • Budgeting.
    • Cash flow analysis.
    • Accounts payable/receivable management.
  • IRS audit representation.
  • Tax planning.
  • Insurance audit representation.
  • Business sales tax compliance.
  • Business startup entity selection.
  • Payroll services.
  • Year-end payroll documents.
  • Processing employee payments.
  • Calculating and remitting payroll taxes.

Flex Tax and Accounting

Flex Tax and Accounting LLP is another bilingual provider, and their website easily flips between English and Spanish. There’s no mention of the year founded, but each partner describes more than 10 years of experience in their bio.

Despite listing only two partners on the site, Flex Tax says they can assist up to multi-million-dollar businesses, as well as provide individual tax services to non-business owners. They may not have many reviews, but a perfect rating still says something about their quality.

Their services include:

  • Tax planning.
  • Tax return preparation.
  • 1099 filings.
  • Bookkeeping.
  • Financial statements​.
  • IRS audit assistance.
  • State & local taxes (SALT).
  • Business registration​.
  • Tax strategy.
  • Foreign tax compliance.
  • Small business coaching.
  • Tax credit consulting.
  • QuickBooks setup​.
  • Payroll services​.
  • Payroll audit assistance.

Lauzen Accounting

Lauzen Accounting is located nearby in Warrenville, IL, but made this list due to the fantastic reputation from their three-generation history. The President, Joe Lauzen, joined the family firm in 1998 and became President in 2008.

They only provide accounting to small businesses, allowing them to serve their ideal client base the best they can. This may be how they’ve earned a perfect Google review rating.

Their accounting services include:

  • Reconciling bank statements.
  • Balancing credit cards.
  • Maintaining general ledger.
  • Preparing financial statements.
  • Preparing sales tax filings.
  • Providing financial guidance.
  • Bookkeeping.

Their payroll services include:

  • Preparing payroll tax filings.
  • Anywhere, any device portal access.
  • Check signing, pay cards, or direct deposit.
  • Payroll reporting.
  • Benefit accruals.
  • Garnishment management.
  • Federal, state, local tax management.
  • Time and attendance.
  • HR compliance support.
  • Benefits management.
  • 401(k) and retirement reporting.
  • Unemployment claims reporting.
  • New hire reporting.
  • PTO accrual reporting.
  • Workers’ compensation.
  • Applicant tracking.
  • Paperless onboarding.
  • Employment screening.
  • Year-end processing.
  • Your logo on checks.
  • Electronic check signature.

Find Your Ideal Accounting & Payroll Service

As a Chicagoland small business owner, you want to consider all of your options for local accounting and payroll firms. We know you’re going to do your research whether we help you or not… so why not?

If another firm is a better fit for you, then you should be working with them. Here’s a list of characteristics to look for when picking a new firm.

If you haven’t made a decision yet, you can still learn more about CSI Accounting & Payroll by clicking the button below to schedule a free, no-commitment consultation.

Not ready to have a conversation yet? Try our Pricing Calculator first!

Miranda Evers

Miranda is our Content Manager. She earned her Marketing degree from Southwest Minnesota State University and had a background in small business marketing before joining CSI in 2020. While she has no formal background in accounting or payroll, she's spent hundreds of hours interviewing our experts to create content that the average business owner can actually understand. Her fresh perspective was key in building our Learning Center from the ground up – starting with the basic concepts our specialists didn’t realize needed explaining.