Top 100 Tax Preparation Firms in Oshawa
The Best of June 2026Looking for a top tax preparation company in Oshawa?
Reduce your risk of being audited and navigate the tax preparation process with ease by working with a tax preparation service.
To assist you in your search for a partner, we’ve compiled this list of the top tax preparation experts in Oshawa. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Oshawa Tax Preparation Services
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1$1,000+50 - 249 employeesWhitby, CanadaAccounting company Accountor CPA Accounting Bookkeeping and Tax Experts is headquartered in Vaughan, Canada; Whitchurch-Stouffville, Canada; Sherwood Park, Canada and London, Canada. They specialize in Accounting, Finance & Accounting Outsourcing (FAO), and Fractional CFO Services and were established in 2015.Read More
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2Undisclosed2 - 9 employeesAjax, CanadaSmall Accounting company Anna Armata, is headquartered in Ajax, Canada. The team specializes in Accounting and Business Consulting.Read More
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3Undisclosed2 - 9 employeesAjax, CanadaHeadquartered in Ajax, Canada, MMS Accounting & Bookkeeping Services is an Accounting company. The team focuses on Accounting.Read More
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4Undisclosed2 - 9 employeesOshawa, CanadaNeahr Accounting Firm, a small Accounting company, is located in Oshawa, Canada. Their services include Accounting.Read More
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5$1,000+2 - 9 employeesToronto, CanadaRead More
Founded in 2017, GTA Accounting is a financial accounting firm based in Scarborough, Canada. This three-person team delivers bookkeeping, tax preparation, payroll processing, and financial accounting services. The company has additional offices in Mississauga, Canada, and Oakville, Canada.
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6$1,000+2 - 9 employeesMarkham, CanadaRead More
Triple M Professional Corp is an accounting firm based in Toronto with an office in Markham, Canada. The firm, founded in 1999, has a team of less than ten that provides accounting services to various clients and companies.
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WellnesslivingIndustries
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7Undisclosed50 - 249 employeesToronto, CanadaRead More
Headquartered in Toronto, Canada, Fuller Landau LLP is an accounting company. The midsize firm was launched in 1948. Their team specializes in accounting and business consulting.
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8Undisclosed10 - 49 employeesToronto, CanadaAdams & Miles LLP is an Accounting company. The team offers Accounting and Business Consulting, and the agency is based in Toronto, Canada.Read More
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9$1,000+10,000+ employeesToronto, CanadaBDO Canada is an Accounting company. Headquartered in Toronto, Canada, their large team provides Accounting. The agency was launched in 1921.Read More
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10Undisclosed10 - 49 employeesMarkham, CanadaKreston GTA is an Accounting company launched in 2004. The small team provides Accounting and Business Consulting.Read More
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11Undisclosed10 - 49 employeesToronto, CanadaFounded in 1975, Hogg, Shain & Scheck is an Accounting company. The team offers Accounting and Business Consulting and is in Toronto, Canada.Read More
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12$1,000+50 - 249 employeesToronto, CanadaMidsize Back Office Outsourcing company Top Virtual Assistant, is located in Brooklyn, New York; Philadelphia, Pennsylvania; Toronto, Canada and Berlin, Germany. They focus on Back Office Outsourcing, Content Writing Services, Call Center Services, Search Engine Optimization, and more and were founded in 2020.Read More
Clients
Veridex Legal Solutions ShopEase Provida Family Medicine Cyvanta Security TripledIndustries
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13Undisclosed10 - 49 employeesToronto, CanadaLaunched in 1981, SF Partnership LLP, a small Accounting company, is headquartered in Toronto, Canada. Their services include Accounting.Read More
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14Undisclosed10 - 49 employeesToronto, CanadaGCSE LLP is an Accounting company. The team is based in Toronto, Canada, and their services include Accounting.Read More
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15Undisclosed50 - 249 employeesToronto, CanadaSegal LLP, an Accounting company, was launched in 1976. The team specializes in Accounting and Business Consulting and is headquartered in Toronto, Canada.Read More
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16Undisclosed2 - 9 employeesToronto, CanadaCapstone LLP, a small Accounting company, is headquartered in Toronto, Canada. Their services include Accounting and Business Consulting.Read More
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17Undisclosed10 - 49 employeesToronto, CanadaAccounting company Yale PGC LLP was launched in 1953. The firm provides Accounting and Business Consulting, and is small.Read More
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18$1,000+2 - 9 employeesToronto, CanadaRead More
Gram Tax & Accounting, a small accounting company, is located in Toronto, Canada. They provide accounting & tax services.
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19Undisclosed10 - 49 employeesToronto, CanadaSBLR LLP, a small Accounting company, is located in Toronto, Canada. Their services include Accounting and Business Consulting.Read More
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20Undisclosed10 - 49 employeesToronto, CanadaLaunched in 2015, Veracity Accounting is a small Accounting company. Their services include Accounting.Read More
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21Undisclosed10 - 49 employeesToronto, CanadaMIAccounting & Income Tax Inc. Is an accounting company founded in 2008. The company offers accounting and has a small team. The company is located in Toronto, Canada.Read More
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22Undisclosed10 - 49 employeesMarkham, CanadaLaunched in 2010, Jiong Gao Professional Corporation, a small Accounting company, is headquartered in Markham, Canada. Their services include Accounting.Read More
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23Undisclosed10 - 49 employeesToronto, CanadaAccounting Plus Business Services is an Accounting company. They were founded in 1992, and their services include Accounting.Read More
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24Undisclosed10 - 49 employeesToronto, CanadaSun, CPA, Professional Corporation is an Accounting company. They are headquartered in Toronto, Canada. Their team offers Accounting and Business Consulting.Read More
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25Undisclosed10 - 49 employeesToronto, CanadaRosen & Associates Limited is a small Accounting company located in Toronto, Canada. The team provides Accounting.Read More
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26Undisclosed10 - 49 employeesToronto, CanadaCampbell Lawless LLP is an Accounting company. The Toronto, Canada-based team focuses on Accounting and Business Consulting.Read More
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27Undisclosed10 - 49 employeesToronto, CanadaAccounting company ConnectCPA LLP was launched in 2014. The team specializes in Accounting.Read More
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28Undisclosed50 - 249 employeesToronto, CanadaAccounting company LiveCA LLP was launched in 2012. The team focuses on Accounting and is based in Toronto, Canada.Read More
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29Undisclosed10 - 49 employeesToronto, CanadaFounded in 1981, MPW Chartered Professional Accountants LLP, a small Accounting company, is located in Toronto, Canada. Their team provides Accounting.Read More
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30Undisclosed10 - 49 employeesToronto, CanadaAccounting company Sloan Partners was launched in 1991. The team offers Accounting and Business Consulting.Read More
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