Top Picks · Thornton
Best CPAs & Accountants in Thornton, CO
Rated and reviewed by real customers. Compare prices, read reviews, and call the top pros near you — for free.
As of June 2026, RatingsNearMe ranks 15 cpas & accountants in Thornton, CO by the RNM Score — a 0–100 rating built from Google ratings, review volume, sentiment, and profile completeness.
CPA fees in Thornton: $150–$400/hr consultation; $300–$800 personal tax returns; $500–$2,500+ business returns.
Rankings updated June 9, 2026 · RNM Score = ratings (35%), review volume (30%), sentiment (20%), completeness (10%), availability (5%) · Not paid placement.
Thornton, CO is home to a variety of certified public accountants (CPAs) who provide tax preparation, financial planning, and other accounting services to local residents and businesses. When searching for a CPA in Thornton, consumers should consider factors such as specialization, experience, and client reviews.
- ✓Thornton, CO has several well-established CPA firms and tax preparation services
- ✓CPAs in Thornton offer a range of accounting, tax, and financial planning services
- ✓Consumers should research CPA qualifications and client reviews when selecting a provider
How to Choose a CPAs & Accountant in Thornton
What to look for
- • Certified Public Accountant (CPA) license
- • Experience working with clients in Thornton, CO or the surrounding Denver metro area
- • Specialization or expertise in the type of accounting services you need (e.g. tax preparation, financial planning, auditing)
- • Strong communication skills and ability to explain financial concepts clearly
Questions to ask
- • How long have you been practicing as a CPA in Thornton, CO?
- • What types of clients and industries do you typically work with?
- • Can you provide references from other Thornton-based clients?
Red flags
- ⚠ CPA does not have a valid license to practice in Colorado
- ⚠ Lack of experience working with clients in the Thornton area
- ⚠ Unwillingness to provide detailed information about services and fees
In Colorado, CPAs must be licensed by the State Board of Accountancy. Be sure to verify the CPA's license is active and in good standing before hiring.
Local Market Snapshot
15
Businesses listed
4.8★
Avg rating
42
Avg reviews
Jun 9, 2026
Last updated
CPAs & Accountants Rankings in Thornton, CO
| # | Business | Rating | Reviews |
|---|---|---|---|
| #1 | Lynn CPAs LLC90 W 84th Ave, Denver, CO 80260, USA | 4.8★ | 16 |
| #2 | New Mill Tax & Accounting12650 Jersey Cir E, Thornton, CO 80602, USA | 5.0★ | 55 |
| #3 | ATAX - Thornton, CO2150 E 88th Ave, Denver, CO 80229, USA | 4.7★ | 59 |
| #4 | Winter Mountains Accounting and Tax13221 Garfield Pl, Thornton, CO 80241, USA | 4.6★ | 10 |
| #5 | Aragon Tax Return Services14350 Ivanhoe St, Thornton, CO 80602, USA | 4.9★ | 56 |
| #6 | Harford Tax Services9101 Pearl St #210, Thornton, CO 80229, USA | 4.5★ | 42 |
| #7 | Trusted Accounting & Tax Services, PC11160 Huron St #34, Northglenn, CO 80234, USA | 5.0★ | 2 |
| #8 | ATAX Northglenn, CO11916 Washington St, Northglenn, CO 80233, USA | 5.0★ | 49 |
| #9 | PL Tax Services8965 Washington St, Thornton, CO 80229, USA | 5.0★ | 57 |
| #10 | Reeser Richard M CPA9883 Pearl St, Thornton, CO 80229, USA | 5.0★ | 1 |
Ranked by verified ratings & review volume · Data from Google Business listings · Updated June 2026
All CPAs & Accountants in Thornton
13221 Garfield Pl, Thornton, CO 80241, USA
11160 Huron St #34, Northglenn, CO 80234, USA
3360 E 140th Pl, Thornton, CO 80602, USA
10701 Melody Dr Suite 620, Northglenn, CO 80234, USA
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CPAs & Accountants in Thornton, CO — Compared
| # | Business | RNM Score | Rating | Reviews |
|---|---|---|---|---|
| 1 | Lynn CPAs LLC | 82/100 | 4.8 ★ | 16 |
| 2 | New Mill Tax & Accounting | 80/100 | 5.0 ★ | 55 |
| 3 | ATAX - Thornton, CO | 75/100 | 4.7 ★ | 59 |
| 4 | Winter Mountains Accounting and Tax | 65/100 | 4.6 ★ | 10 |
| 5 | Aragon Tax Return Services | 79/100 | 4.9 ★ | 56 |
| 6 | Harford Tax Services | 70/100 | 4.5 ★ | 42 |
| 7 | Trusted Accounting & Tax Services, PC | 64/100 | 5.0 ★ | 2 |
| 8 | ATAX Northglenn, CO | 80/100 | 5.0 ★ | 49 |
| 9 | PL Tax Services | 80/100 | 5.0 ★ | 57 |
| 10 | Reeser Richard M CPA | 62/100 | 5.0 ★ | 1 |
Ranked by RatingsNearMe Score · ratings (35%), review volume (30%), sentiment (20%), completeness (10%), availability (5%) · June 2026
Frequently Asked Questions — CPAs & Accountants in Thornton
What is the difference between a CPA, bookkeeper, and tax preparer in Thornton?
A CPA (Certified Public Accountant) is licensed by the CO Board of Accountancy, can represent clients before the IRS, and carries liability coverage. A bookkeeper records day-to-day transactions but cannot sign tax returns or provide strategic tax advice. A tax preparer has no required credentials — anyone can prepare taxes. For business owners, complex returns, or IRS issues, a CPA is the right choice.
How do I verify a CPA's license in CO?
Search the CO Board of Accountancy's online license lookup (find it by Googling "CO Board of Accountancy license search"). You can also use NASBA's License Verification tool at nasba.org to search across all states. Always verify before sharing financial documents.
How much does a CPA charge in Thornton?
Typical rates in Thornton: $150–$400/hr for consultation; $300–$800 for a personal tax return; $500–$2,500+ for a small business return depending on complexity. Many CPAs offer flat-fee packages for straightforward situations. Get itemized quotes from at least 2–3 firms before committing.
Should I hire a local CPA or use online tax software?
Online software (TurboTax, H&R Block, FreeTaxUSA) works well for simple W-2 situations with no major life changes. A local CPA in Thornton is worth the cost if you own a business, have rental income, experienced a major event (divorce, inheritance, home sale), owe the IRS money, or want year-round tax planning — not just annual filing.
How are the cpas & accountants on this page ranked?
Rankings use a transparent algorithm: star rating (35%), review volume (30%), customer sentiment (20%), profile completeness (10%), and availability (5%). Featured Partner listings have paid for enhanced visibility but must still earn their position through real customer reviews — sponsored listings are clearly labeled.
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How Rankings Work on This Page
Every cpas & accountants on RatingsNearMe is scored transparently: star rating (35%), review volume (30%), customer sentiment (20%), profile completeness (10%), and availability (5%). Businesses labeled exclusive or premium are Featured Partners — they have paid for enhanced visibility but must still rank through real customer reviews. We cap sponsored boosts so bad businesses can never buy the top spot.
Editorial notice: Ratings are based on publicly available data from Google Business listings. Consumers should independently verify licensing, insurance, and credentials before hiring any service provider. Last updated: June 9, 2026.
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