Top Picks · Ontario
Best CPAs & Accountants in Ontario, CA
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 20 cpas & accountants in Ontario, CA by the RNM Score — a 0–100 rating built from Google ratings, review volume, sentiment, and profile completeness. The top-ranked is RCS Tax Group with a 4.9-star rating from 198 Google reviews and an RNM Score of 85/100. Also in the top tier: Madero Accountancy Practice, PC and Cifuentes & Associates Ltd. Liability Co.. The average rating across all listed cpas & accountants in Ontario is 4.8 stars from 33 reviews per business on average.
CPA fees in Ontario: $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.
Consumers in Ontario, CA can find a variety of certified public accountant (CPA) services to meet their financial needs. These CPAs offer tax preparation, auditing, bookkeeping, and other accounting services to individuals and businesses in the local area.
- ✓Variety of CPA firms available in Ontario, CA
- ✓CPAs offer tax, auditing, and other accounting services
- ✓Consumers can find local CPA professionals to assist with their financial needs
Best Overall
Kelly Accounting & Associates
Kelly Accounting & Associates is recognized as the top-ranked CPA in Ontario, CA, due to its excellent client feedback and established local presence.
Most Reviewed
Layman’s Tax & Accounting
A high review count reflects strong client trust and satisfaction, making it a reliable choice for accounting services.
When selecting a CPA in Ontario, prioritize firms with solid reputations and clear communication. Schedule an initial consultation to ensure their expertise matches your financial needs.
How to Choose a CPAs & Accountant in Ontario
What to look for
- • Certified Public Accountant (CPA) designation
- • Relevant experience in your industry or tax situation
- • Strong communication and customer service skills
- • Transparent pricing and billing practices
Questions to ask
- • How long have you been practicing as a CPA?
- • What types of clients and industries do you typically work with?
- • How do you approach tax planning and preparation for your clients?
- • Can you provide references from satisfied clients?
Red flags
- ⚠ Unwillingness to provide a detailed engagement letter or contract
- ⚠ Lack of clear communication about services, fees, and timelines
- ⚠ Negative reviews or complaints from past clients
In Ontario, CA, CPAs must be licensed by the Chartered Professional Accountants of Ontario (CPA Ontario) and carry professional liability insurance. Be sure to verify a CPA's license and insurance coverage before hiring.
Local Market Snapshot
20
Businesses listed
4.8★
Avg rating
33
Avg reviews
Jun 9, 2026
Last updated
Top Rated CPAs & Accountants
Trusted by hundreds of clients, this Ontario CPA holds a flawless 4.9-star rating.
3200 E Guasti Rd Ste 100 Unit 7, Ontario, CA 91761, USACPAs & Accountants Rankings in Ontario, CA
| # | Business | Rating | Reviews |
|---|---|---|---|
| #1 | RCS Tax Group3200 E Guasti Rd Ste 100 Unit 7, Ontario, CA 91761, USA | 4.9★ | 198 |
| #2 | Madero Accountancy Practice, PC4055 E Hamilton Paseo, Ontario, CA 91761, USA | 5.0★ | 46 |
| #3 | Cifuentes & Associates Ltd. Liability Co.3400 Inland Empire Blvd #101, Ontario, CA 91764, USA | 5.0★ | 40 |
| #4 | Meza CPAs, Tax & Accounting3350 Shelby St #200, Ontario, CA 91764, USA | 5.0★ | 23 |
| #5 | Chartered Professional Accountants of Ontario (CPA Ontario)69 Bloor St E, Toronto, ON M4W 1B3, Canada | 2.4★ | 122 |
| #6 | Xel Advisors, CPA337 N Vineyard Ave #230, Ontario, CA 91764, USA | 4.8★ | 41 |
| #7 | Hongda Tax and Accounting Services2920 Inland Empire Blvd #105, Ontario, CA 91764, USA | 4.9★ | 30 |
| #8 | Accountant Partners Small Business Accountant - Ontario Location2321 S Greenwood Pl, Ontario, CA 91761, USA | — | — |
| #9 | GYL CPAs and Advisors4120 Concours St # 100, Ontario, CA 91764, USA | 5.0★ | 1 |
| #10 | Kelly Accounting & Associates1131 W 6th St #210, Ontario, CA 91762, USA | 5.0★ | 4 |
Ranked by verified ratings & review volume · Data from Google Business listings · Updated June 2026
All CPAs & Accountants in Ontario
69 Bloor St E, Toronto, ON M4W 1B3, Canada
2920 Inland Empire Blvd #105, Ontario, CA 91764, USA
2321 S Greenwood Pl, Ontario, CA 91761, USA
1282 W Arrow Hwy #200, Upland, CA 91786, USA
140 W Foothill Blvd ste e, Claremont, CA 91711, USA
525 W Holt Blvd, Ontario, CA 91762, USA
9445 Buttonwood Ct, Rancho Cucamonga, CA 91730, USA
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CPAs & Accountants in Ontario, CA — Compared
| # | Business | RNM Score | Rating | Reviews |
|---|---|---|---|---|
| 1 | RCS Tax Group | 85/100 | 4.9 ★ | 198 |
| 2 | Madero Accountancy Practice, PC | 79/100 | 5.0 ★ | 46 |
| 3 | Cifuentes & Associates Ltd. Liability Co. | 78/100 | 5.0 ★ | 40 |
| 4 | Meza CPAs, Tax & Accounting | 76/100 | 5.0 ★ | 23 |
| 5 | Chartered Professional Accountants of Ontario (CPA Ontario) | 46/100 | 2.4 ★ | 122 |
| 6 | Xel Advisors, CPA | 75/100 | 4.8 ★ | 41 |
| 7 | Hongda Tax and Accounting Services | 75/100 | 4.9 ★ | 30 |
| 8 | Accountant Partners Small Business Accountant - Ontario Location | 3/100 | — | 0 |
| 9 | GYL CPAs and Advisors | 62/100 | 5.0 ★ | 1 |
| 10 | Kelly Accounting & Associates | 67/100 | 5.0 ★ | 4 |
Ranked by RatingsNearMe Score · ratings (35%), review volume (30%), sentiment (20%), completeness (10%), availability (5%) · June 2026
Frequently Asked Questions — CPAs & Accountants in Ontario
What is the difference between a CPA, bookkeeper, and tax preparer in Ontario?
A CPA (Certified Public Accountant) is licensed by the CA 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 CA?
Search the CA Board of Accountancy's online license lookup (find it by Googling "CA 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 Ontario?
Typical rates in Ontario: $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 Ontario 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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