Where Our CPA Data Comes From

CPA Locator combines official board data, business listing data, IRS provider files, and claimed profile updates. Here's what each source contributes, how we process it, and where the limitations are.

State board data Google Places API IRS provider files Claimed listing updates

CPA licensing in the US is regulated at the state level. The authoritative source for whether someone is a licensed CPA is their state board of accountancy. CPA Locator uses state board records where available, then layers in business contact information, reviews, and profile updates from other public and first-party sources.

California Department of Consumer Affairs (DCA)
California Board of Accountancy licensee database
Official State Record
Source type
Official state board
Access method
Bulk CSV download
Use on CPA Locator
Core listing identity
Fields included
Name, license #, city, status

The California DCA maintains public records of licensed CPAs and firms in California. We use this source for core entity identity fields such as name, license number, city, and status information where available.

What this data is best for: confirming the board-level listing identity. What it does not provide well: current marketing copy, website, phone, specialties, or whether the firm is accepting new clients.

DCA Public Records ↗ Verify a CA license ↗
Florida Department of Business and Professional Regulation (DBPR)
Florida Board of Accountancy licensee export
Official State Record
Source type
Official state board
Access method
XLSX download via DBPR
Use on CPA Locator
Core listing identity
Fields included
Name, license #, city, county, status

Florida DBPR makes CPA and CPA firm data available through its public licensing system. We use this source to create or validate the underlying listing identity for Florida firms and professionals.

DBPR License Search ↗
Washington State Board of Accountancy
via Washington State Open Data (Socrata API)
Live API
Source type
Official state board
Access method
Socrata REST API
API endpoint
data.wa.gov
Resource IDs
6du3-3h9e (ind.)
pzcu-jpab (firms)

Washington state publishes professional licensing data through the Washington State Open Data portal. We use these API-accessible records to build and refresh Washington CPA and firm listings.

WA Individuals API ↗ WA Firms API ↗
Google Places API
Business listings, contact details, and public ratings
Third-Party Source
Source type
Business data provider
Use on CPA Locator
Phone, website, address, ratings
Access method
Places API search and details
Fields retrieved
Name, address, phone, website, rating, review count

Google Places provides business contact details and review aggregates that state board records usually do not include. We use it to backfill fields such as phone, website, address normalization, rating, and review count where a strong entity match exists.

Important: Google Places data reflects what a business has listed on Google and what Google has associated with that business. CPA Locator does not independently verify every third-party contact detail. Claimed profiles can override this information.

Ratings: Star ratings and review counts reflect the Google Maps aggregate rating at time of data retrieval. They are not updated in real time. Always check Google Maps directly for the most current rating.

IRS provider files
Public IRS provider/export files used for broader inventory
Public Record
Source type
Tax provider inventory
Use on CPA Locator
Free-listing expansion and phone backfill

CPA Locator also uses IRS provider files as a broader public-record source to identify accounting and tax firms that may not appear in our current board-backed datasets. These files are more useful for inventory expansion and contact backfill than for license verification.

Important: IRS provider data is not the same thing as a CPA license record. We treat it as a supporting source, not as proof of CPA credentialing by itself.

Claimed listing and public-web enrichment
First-party updates plus public website enrichment
First-Party + Public Web
Source type
Claimed profiles and enrichment
Use on CPA Locator
Bio, specialties, website, contact refinement

When a firm claims its profile, we treat those updates as the best available first-party information for services, specialties, bios, and contact details. We may also use public firm websites to enrich starter or premium profiles where the source is clear and attributable.

Important: Claimed data is provided by the firm. Public-web enrichment is used carefully and can still be stale or incomplete.

How we process raw data

1
Download from official source
Board exports, public provider files, and business-directory data are pulled from their source systems and saved with a timestamp so the provenance is auditable.
2
Clean and normalize
Name fields are cleaned, cities are normalized to canonical city-state slugs, and source-specific quirks are handled before import. License and source identifiers are preserved where available.
3
Deduplicate
We deduplicate within and across sources using combinations of name, city, state, address, phone, and source identifiers. This is not perfect, especially for chains and common firm names, so some duplicates may still exist.
4
Import as free listings
Imported listings usually begin as free listings. Core identity fields come from the strongest available source, while contact fields, ratings, and review counts are layered in from Google Places or claimed profile updates where available.
5
CPA claims and enrichment
Firms can claim or upgrade their listing via our plans page. Claimed listings can update specialties, credentials, bios, websites, and contact details. Those profile improvements are treated as first-party updates.

Known limitations — read before relying on this data

Data is a snapshot, not live. State board downloads reflect license status at the time of download. Licenses that expired, were suspended, or were revoked after our download date will still appear as active. Always verify current license status directly with the state board before hiring.
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Addresses may be stale. CPAs often register with their home address or an old office address on state board records. Contact information from Google Places may also be outdated if the business hasn't maintained its Google listing.
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Source quality varies. State board records are stronger for identity and licensing. Google Places is stronger for contact details and ratings. IRS provider files are broader but are not proof of CPA credentialing by themselves.
Ratings are from Google, not independently verified. We retrieve ratings from Google Places API. We don't verify, curate, or moderate Google reviews. Ratings reflect the Google Maps aggregate at time of retrieval and may not be current.
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Firm vs. individual disambiguation is imperfect. Some listings may be CPA firms, tax preparers, enrolled agents, or accounting businesses rather than individual CPAs. Source labels matter.
How to verify a CPA's current license status

Every state board of accountancy maintains a free public license lookup tool. Search for the CPA by name and you'll see their current license status, expiration date, and any disciplinary history.

Calculator data sources

S-Corp Savings Calculator: Math based on IRC §1401(a) (SS rate 12.4%), IRC §1401(b) (Medicare rate 2.9%), IRC §1402(a)(12) (0.9235 NESE factor), IRC §3111 (FICA), and IRC §3121(a) (distributions exempt from FICA). Social Security wage base $176,100 for 2025 per SSA.gov Notice (October 2024). S-Corp overhead ranges from National Society of Accountants 2020-21 Income and Fees Survey and ADP/Gusto public pricing. Full footnotes on the calculator page.

CPA Cost Estimator: Fee data from National Society of Accountants 2020-21 Income and Fees of Accountants and Tax Preparers in Public Practice Survey (the primary published dataset for US CPA fees). Applied +15% inflation adjustment for 2024-25. Geographic multipliers from Bureau of Labor Statistics Occupational Employment and Wage Statistics for SOC 13-2011 (Accountants and Auditors) by metropolitan area, 2023 data. All sources linked from the estimator page.

Data methodology last reviewed: March 2026  ·  Questions? Contact us