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Tax & AccountingBookkeeping Services in Rancho Cucamonga, CA

We are a full suite accountingbookkeeping firm in Rancho Cucamonga offering tax preparation / tax planning as well as individual and business services.

Accounting Services

Tax Services

Personal and business taxes, IRS problem resolution, amended tax returns, tax planning & more.

Business Services

Business services to include incorporation, accounting, bookkeepingbookkeeping & payroll.

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Hear Why Our Clients Love Us

  • Yury Camacho
    Chris was great helping me with my taxes , also very professional and helpful, I don't see myself doing my taxes with somebody else
  • savannah dooling
    Chris was amazing, He is extremely knowledgeable and helped us beyond expectations.
  • Tatiana Lazo
    I had an excellent experience with Paramount Tax, thanks to Chris Collins. He was incredibly informative and made the entire process smooth, straightforward, and stress free. I felt comfortable and confident in his expertise, and I truly appreciate the care he put into handling my taxes. I’m beyond satisfied with his service and highly recommend him to anyone looking for a knowledgeable and trustworthy tax professional!
  • Rose Petals
    Chris has been doing my taxes for almost 10 years now. He also does my two daughters .I find him to be honest and capable and don't plan on moving my business.
  • Maria Garcia
    My sister & I came to paramount tax for the first time today and we meet with Veronica. She was very professional and knowledgeable. She took her time to help us & answered any questions we had. She made sure our taxes were filed correctly. Roxie was also very nice and professional answered all our questions when we called to schedule our appointments. Nice office and friendly environment. Thank you!
  • Estevan Rivera
    Quick service and very detail oriented. They make sure all questions are answered and very satisfied with customer care. Highly recommend Paramount Tax & Accounting.
  • Ricky Santos
    Definitely one of the best! Mike is a professional with ample knowledge around Taxes! I do recommend them if you want someone professional, experienced, and knowledgeable.
  • jovic Victorio
    This is our first year working with Linda Williams and I can say with absolute confidence that she is the best. She was able to help my husband and I sort multiple issues with our taxes. She was very thorough, knowledgeable and very considerate with every concerns that we had throughout the process. She was so amazing that I recommended her to my whole entire family and co-workers. Thank you for the excellent service.
  • Wendy Dodd
    Great place to have your taxes done makes you very comfortable and makes you feel like family it's always frustrating filing taxes thank you so much for making it easy
  • emily bautista
    We want to thank Roxanne for making the transition of implementing payroll as seamless as possible! She was very patient and understanding. We also wanted to thank Mike for taking the time in answering all our questions before going on board!
  • Ryan Mokricky
    First time customer and the staff was amazing. All were very nice and professional. Andrew was very helpful to our family and our needs. Would highly recommend to all.
  • Eva Martinez
    Chris was very personable and professional.
  • Rodrigo Romero
    Great service, I recommend 100%
  • Tisha Hartfield
    My agent Christopher Collins was extremely helpful with my tax situation he helped make it less stressful and the end result was very satisfactory. I really appreciate the help
  • Joe Hribar
    Everything went very smooth very professional very happy and joyous people very kind and helpful. Great experience got my taxes done properly.
  • Kamille Bowlin
    I’ve went through many different tax site and prepares and Paramount was the most thorough, honest and considerate. They gave me a lot of helpful information and really worked with my situation to get me the best possible outcome. I appreciated their honesty and time. I hate tax season so it really helped to have nice, calm and considerate people working with me. They are also open throughout the year so that is extremely helpful! I would definitely recommend them for your tax prep
  • Francisco Padilla
    Very prompt response, quick to solve my issues, pleasure to work with them.
  • Shone Johnson
    I would like to Thank Roxy for taking her time to help me. Every time I call or make an appointment. Everything goes so smoothly! I want never use another company. Thank ya for all your help.
  • Lauren Sivley
    We use paramount for our small business and they are the best! We usually speak with Roxy and she always has an answer for our payroll and tax questions and is very quick to respond and knowledgeable. Highly recommend!
  • AlohaSoul
    We’ve been working w these wonderful people for a couple years now. Chris and Roxie are incredibly responsive, kind, helpful, and professional. We use them for both our personal taxes and business/s-corp/payroll services. They’ve made the daunting and confusing process of taxes less complicated. It’s nice to know we can call/text/email them with any questions, anytime of year, and they get right back to us. I highly recommend them for anyone looking for some solid tax people! :)