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    Ketel Thorstenson

    3.0 (6 reviews)
    Open 8:00 am - 5:00 pm

    Services - Ketel Thorstenson

    Accountants

    Audit and conflict resolution support

    Current year tax preparation and filing

    Past year(s) tax preparation and filing

    Tax planning

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    1 year ago

    Excellent guidance from Denise and now Mary, very happy with KT for accounting and tax guidance for the past almost 3 years.

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    7 years ago

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    7 years ago

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    DeSmet And Biggs

    DeSmet And Biggs

    (1 review)

    On multiple years (2017, 2019), my taxes were not filed by the proper due date, despite repeat…read moreconfirmation from Desmet and Biggs that they would be. In the instance of my 2017 taxes, I did not find out that they had missed the deadline until informed by the IRS years later. In addition, I missed multiple opportunities to contribute to my retirement funds because of Keith Chaffin's knowledge gap about contribution deadlines. Both of these errors have cost me tens thousands of dollars in tax penalties and loss of retirement savings. Desmet and Biggs accountants, specifically Megan Kinder and Keith Chaffin, did nothing to remedy this. I have since switched accountants to someone who is more honest, reliable, and knowledgable than the accountants at Desmet and Biggs.

    From the owner: DeSmet and Biggs, LLP is a full-service accounting firm that has been serving clients throughout…read morethe Rapid City, SD, and much of the surrounding area since 1983. We provide a wide range of accounting services to both individuals and businesses across a variety of industries. Our services include: Tax management services Bookkeeping Cash flow and budgeting analysis Accounting services Payroll services Financial projections and forecasts Debt and finance advising When it comes to tax, accounting and financial services, you need a partner you know you can count on to provide accurate results with a true focus on attention to detail. You need a partner you know will always provide personalized service with the highest level of honesty and integrity. You need a partner like DeSmet and Biggs. Call DeSmet and Biggs, LLP today!

    Ketel Thorstenson - accountants - Updated June 2026

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