
STATES · ILLINOIS
CPA, tax accountant and bookkeeping for Oak Brook clients, delivered remotely
ZIP code 60523, which serves Oak Brook, DuPage County, Illinois, has 1,419 business establishments with paid employees, according to Census ZIP Code Business Patterns 2023. Brent Tucker, CPA, serves Oak Brook business owners with tax returns and monthly books.
Sound familiar?
You own an S corporation or a partnership.
The business return and each owner’s return depend on each other. Preparing them together keeps the figures consistent.
28% of the 2022 tax returns filed from the ZIP code 60523 that serves Oak Brook reported partnership or S corporation income (IRS Statistics of Income, individual income tax statistics by ZIP code, tax year 2022; the ZIP codes extend beyond Oak Brook).
You want a clearer picture of each property.
Books kept property by property show what each one earns and costs — and carry straight through to your return.
Properties held in partnerships or LLCs.
Coordinate the returns and reporting required for your properties and entities with your individual tax return.
Last year’s tax bill came as a surprise.
Planning through the year gives you a view of where the year is heading before it ends, while there are still choices to make.
Your situation isn’t on this list? Tell us about it — every engagement starts with a conversation.
Services and starting prices.
- 01
Monthly Accounting
From $400/moTransaction categorization, account reconciliations, financial statements and regular accounting support.
- 02
Tax Preparation
From $300Individual returns (federal and one state) from $300; business returns from $750.
- 03
Accounting + Tax + Planning
From $900/moMonthly accounting and reporting, business and owner tax returns, proactive tax planning and year-round CPA access.
Founding Client Rate: $825/month for your first 12 months when you engage by March 31, 2027. Terms
- 04
Law Firm Accounting
From $900/moFor solo attorneys and small law firms: monthly accounting, financial reporting, business and owner returns, tax planning and CPA consultation.
Starting prices. Your scope and price are agreed in writing before work begins.

Work directly with Brent.
Licensed CPA · 10+ years in public accounting · Member, AICPA and MICPA
You work directly with your CPA, and have someone to call when a decision comes up.
Brent Tucker is a CPA licensed in Michigan and serves clients in other states under applicable CPA mobility provisions.
More about BrentOak Brook at a glance
1,419
business establishments with paid employees in the ZIP code 60523 that serves Oak Brook
Source: Census ZIP Code Business Patterns 2023
5,550
tax returns filed for tax year 2022 from the ZIP code 60523 that serves Oak Brook
Source: IRS Statistics of Income, individual income tax statistics by ZIP code, tax year 2022; the ZIP codes extend beyond Oak Brook
59
law offices with paid employees in the ZIP code 60523 that serves Oak Brook
Source: Census ZIP Code Business Patterns 2023
94
physician offices with paid employees in the ZIP code 60523 that serves Oak Brook
Source: Census ZIP Code Business Patterns 2023
97
real estate firms with paid employees in the ZIP code 60523 that serves Oak Brook
Source: Census ZIP Code Business Patterns 2023
These ZIP codes also cover areas outside Oak Brook, so ZIP-area figures describe a wider area than Oak Brook itself.
Tax offices in Oak Brook
Village of Oak Brook Administration (Village Manager's Office)
City business tax and licenses.
Phone (630) 368-5000
DuPage County Treasurer (County Collector)
County property tax collection.
421 N. County Farm Road, Wheaton, Illinois 60187-2553
Phone (630) 407-5900
Illinois Department of Revenue
State tax and revenue agency.
101 West Jefferson Street, Springfield, IL 62702
Phone 800 732-8866
IRS Taxpayer Assistance Center - Downers Grove
Federal tax help in person.
2001 Butterfield Rd., Downers Grove, IL 60515
Phone (630) 493-5291
The same ZIP code has 97 real estate firms, 94 physician offices and 58 restaurants with paid employees. Four offices are listed on this page for Oak Brook, DuPage County, Illinois.
Village of Oak Brook Administration (Village Manager's Office) is the village's listing for local taxes, and DuPage County Treasurer (County Collector) collects property tax.
The state listing is Illinois Department of Revenue, and the federal listing is IRS Taxpayer Assistance Center - Downers Grove.
Brent prepares individual and business returns, keeps monthly books and plans taxes through the year for households and businesses in Oak Brook.
Source: each office's official website, checked October 16, 2026.
Common questions.
Is there a Tucker CPA office in Oak Brook?
No. Tucker CPA has no office in Oak Brook and no local offices elsewhere; Brent works with clients remotely. No office visit needed — meetings are by phone or video, wherever you’re based.
Can a remote CPA handle taxes and books for households and businesses in Oak Brook?
Yes. You work directly with your CPA, and have someone to call when a decision comes up.
What does a CPA cost?
Starting prices. Your scope and price are agreed in writing before work begins.
Sources
- Census ZIP Code Business Patterns 2023: establishments with paid employees, by ZIP code.
- IRS Statistics of Income, individual income tax statistics by ZIP code, tax year 2022; the ZIP codes extend beyond Oak Brook.
- American Community Survey 2023 5-year estimates (survey estimate for the place), for Oak Brook village, Illinois.
- U.S. Census Bureau, 2020 ZIP Code Tabulation Area relationship files: which ZIP codes serve the place.
- IRS, “State government websites”: the state tax agency link.
GET STARTED
Let's talk about your numbers.
Tell us a little about your business or situation, and Brent will reply personally. No office visit needed — meetings are by phone or video, wherever you’re based.
Call 888-762-4370 · Email brent@brenttuckercpa.com · Prefer to pick a time? Book a consultation online