Updated:
← Back to Top 109 Bookkeepers in the Los Angeles-Long Beach Area, CA (2026)

Keystone CPA, Inc.

Evidence Score 36/100 at 83% evidence coverage 66 of 109 on the Los Angeles-Long Beach area list How the score works

What we could verify

Registered business?
Not verified
CPA license or firm permit?
Not verified (searched the state board)
Publishes prices?
Not stated on its website
Local or remote?
Local + remote
Software?
None named on its website

Who they say they serve: real estate, retail, professional services, manufacturing (self-reported, from the firm's own website)

1 of 5 answered from a dated source.

Documents 1 of 5 core services; IRS preparer record found for a named person.

Score breakdown

Documented services + buyer fit16 of 40 pts, 40 checked
Independently verifiable qualifications6 of 20 pts, 14 checked
Operational + pricing transparency10 of 25 pts, 25 checked
Verified identity + continuity4 of 15 pts, 4 checked

Dark bar: points earned. Grey bar: the weight we could check.

Evidence

Unless a row says otherwise, the source is the named page of Keystone CPA, Inc.'s own website (self-reported), read Sep 26, 2026.
ClaimWhat the source showsSourcePoints
Business name Keystone CPA, Inc. home page
Website https://www.keystonecpa.com/ home page
Office locality Fullerton, CA /Contact-Us
Service area United States (stated by the firm) home page
Phone +17142516861 home page
Offers bookkeeping Documented: ...in Accounting from Oklahoma City University. She loves taking care of accounting and bookkeeping details so that business owners have all the information they need to make... /About-Us
Monthly bookkeeping Documented: ...bookkeeping each year? The planning does not include annual filing of tax returns nor monthly bookkeeping. Both services are available for a separate fee. To ensure optimal tax... /services 8 pts (max 8)
Industries served (documented) real estate, retail, professional services, manufacturing home page 5 pts (max 5)
Local / remote model stated Local + remote home page 3 pts (max 3)
Bookkeeping designation (AIPB/NACPB) or IRS preparer record IRS preparer record for Matthew Macfarland · CPA (self-reported to the IRS, not a state license) · business name on the record: Keystone CPA, Inc. IRS preparer records
Third-party
Sep 27, 2026
6 pts (max 6)
Onboarding described Documented: ...answered What people ask us most about tax planning and working with Keystone CPA. How it works Process, pricing, and what to expect + What is the difference between tax... home page 4 pts (max 4)
Named contact / team Does Keystone, CPA home page 3 pts (max 3)
Communication channel / process Documented: From tax return reviews to unlimited private tax advisory calls and emails, we will develop a personalized tax savings plan /services
Oct 27, 2026
3 pts (max 3)
Working contact route verified [email protected] (mail server found) DNS check
Third-party
Oct 6, 2026
2 pts (max 2)
Privacy / data-handling page Documented: Privacy /pages/privacy-policy 2 pts (max 2)

Checked and not found

  • Not documented. Checked 5 pages of the firm's own site on 2026-09-26 (Firm's own website): Catch-up / cleanup (0 pts, max 5); AP / AR (0 pts, max 4); Payroll coordination (0 pts, max 4); Month-end close + reporting (0 pts, max 6); Software supported (0 pts, max 5); Pricing approach published (0 pts, max 6); What is included / excluded (0 pts, max 5); Reporting cadence stated (0 pts, max 4).
  • Not verified. Searched California Board of Accountancy licensee file (DCA public licensee data) for CPA firm records named 'Keystone CPA, Inc.'; individual CPA licences for 'Does Keystone' on 2026-09-26: no matching record (State accountancy board): Active CPA firm or individual license (state board) (0 pts, max 8).

Searches that find nothing are not a mark against a firm. How we search.

Not verified (not checked yet, so each scores 0 and counts against coverage): Current QuickBooks ProAdvisor or Xero advisor listing (0 pts, max 6); Entity found in the state business registry (0 pts, max 6); Operating 1+ year (registry formation date) (0 pts, max 5).

Check it yourself on the state's own records: California Board of Accountancy license search and business registry search.

  • Bookkeeping designation (AIPB/NACPB) or IRS preparer record: The IRS's public file of active tax preparers (PTIN holders, updated 2026-02-23) lists Matthew Macfarland under the business name 'Keystone CPA, Inc.' in Fullerton, CA. The record lists: CPA. It is one individual's IRS preparer record, not a firm license or a directory listing. Its CPA entry is self-reported to the IRS and is not a state CPA license. It does not prove service quality.
  • Working contact route verified: The email address the firm publishes is on a domain that accepts mail (MX record present).

Data limitations

  • 21 of 24 evidenced items come from Keystone CPA, Inc.'s own website and are labelled self-reported.
  • No ratings or review counts are published here. Why.

Is this your firm?

Claim this listing to correct a field with evidence, or report a correction. Claiming confirms ownership only; it does not change the score.