WHO WE SERVE · LAW FIRMS & ATTORNEYS
Accounting and tax support for Diamond Bar law firms
Brent Tucker, CPA, offers Diamond Bar law firms in California monthly accounting and financial reporting. In ZIP code 91765, 79% of the law offices have fewer than 5 employees, a share derived by Tucker from Census data.
Sound familiar?
Monthly accounting and financial reporting for small law offices
Where the office already has a bookkeeper, the work is arranged around the books that person keeps.
Your situation isn’t on this list? Tell us about it — every engagement starts with a conversation.
How we help.
The state’s trust account rules
Money a law firm holds for clients — retainers not yet earned, settlement proceeds, funds held for a transaction — is not the firm’s money. The attorney remains responsible for the trust account under the rules.
Services and starting prices.
- 01
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
Brent has served legal clients throughout his career, at a boutique firm and at a large national accounting and advisory firm.
Brent Tucker is a CPA licensed in Michigan and serves clients in other states under applicable CPA mobility provisions.
More about BrentDiamond Bar at a glance
28
law offices with paid employees in the ZIP code 91765 that serve Diamond Bar
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023
79%
share of law offices with fewer than 5 employees
Source: derived by Tucker from Census ZIP Code Business Patterns 2023
Tax offices for Diamond Bar law firms
City of Diamond Bar Planning Division (Business Licenses)
City business tax and licenses.
21810 Copley Drive, Diamond Bar, CA 91765
Phone (909) 839-7030
Los Angeles County Treasurer and Tax Collector (Secured Property Tax)
County property tax collection.
225 North Hill Street, First Floor Lobby, Los Angeles, CA 90012
Phone (213) 974-2111
California Franchise Tax Board (income tax)
State tax and revenue agency.
Phone 800-852-5711
IRS Taxpayer Assistance Center - El Monte
Federal tax help in person.
9350 East Flair Dr., El Monte, CA 91731
Phone (626) 927-1201
A Diamond Bar attorney in Los Angeles County, California, has these offices to contact.
Los Angeles County Treasurer and Tax Collector (Secured Property Tax) collects property tax, and City of Diamond Bar Planning Division (Business Licenses) is the city office for local taxes.
Statewide there is the California Franchise Tax Board (income tax), and federally IRS Taxpayer Assistance Center - El Monte. ZIP code 91765 has 28 law offices with paid employees, per Census ZIP Code Business Patterns 2023.
Brent Tucker, CPA, coordinates business and owner returns and keeps the monthly accounting current for Diamond Bar solo attorneys and small law firms.
Source: each office's official website, checked October 16, 2026.
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