A CPA Firm Built Around Doing Things Better

Meet Mondor CPA — a family-run 100% remote firm focused on proactive tax strategy, flat-fee pricing, and client-first service.

Fueled by a desire to do better, Billy Mondor founded Mondor CPA to help business owners minimize taxes, gain clarity, and achieve both personal and business goals.

A San Antonio native, Billy graduated from UTSA and began his career in public accounting in 2010. Before launching Mondor CPA, he served clients across industries at national, regional, and local CPA firms.

Billy works alongside his wife Christy , also a CPA, whom he met at Deloitte. Together, they bring big-firm experience with a small-firm, client-first approach.

Outside of work, they’re raising two young boys and enjoying the outdoors, traveling, and football season.

Our Philosophy:

  • Flat-fee, transparent pricing

  • Proactive planning — not reactive work

  • Technology-forward and fully virtual

  • Real relationships with real access

Meet with Our Team

  • His quality of service and attention to detail is second to none.

    Topher Rinek

  • I highly recommend Billy Mondor for small business tax services.

    Jose R. Mendez

  • I even was able to work with him around maximizing my employer benefits.

    Seth Collins

  • As someone who has a lot of financial and money anxiety at baseline, Billy has been a good fit for me.

    Dianna Yip

  • The best cpa I’ve worked with, and I’ve worked with many.

    Leighton Harris

  • If you want a high touch point service for your taxes, 
    I highly recommend Mondor CPA.

    Heather Fork

  • Would definitely recommend him for anyone seeking help on tax services.

    Joshua Canas

  • If you’re looking for someone to take care of your taxes, Billy is your man.

    A.C. Mitchell

  • I’ve worked with many accountants and Billy has made my job easier.

    Mindy Macias

  • We would highly recommend Mondor CPA for all accounting needs or tax assistance, he has our highest endorsement.

    Kellie Trombitas

  • Billy Mondor has been outstanding! He prepared and sent me a presentation of my corporate tax return before filing it.

    Michael McLeod

  • Billy and the team at Mondor CPA have been so helpful and understanding.

    Holly Stein

  • Billy is a pleasure to work with. Communicates well and meets the deadlines we organized in advance.

    Briar Patterson

  • Billy is professional, knowledgeable and timely with his responses.

    Melissa Vicendese

  • Billy's explanation of tax preparation is excellent.

    Lynn Huerta

  • Our experience with Billy has been exceptional!

    Lisa Lyles

  • Billy is great at what he does.

    Matthew Okerson

  • Looking forward to working with him again!

    Ronak Patel

  • I would definitely recommend Mondor CPA and I'll certainly be using them in the future.

    Robert Booth

  • I highly recommend Billy for his exceptional expertise in financial and fiscal matters.

    Juan Gonzalez

What are the next steps?

Once you've scheduled a call, we will discuss your unique needs. Then, we will prepare a custom proposal for your business. Together, we will execute on your customized plan.

Get in touch:

 Serving Clients Nationwide  Billy@MondorCPA.com