• Welcome

    We are a firm that cares about you and your business.
  • Accounting for Business

    Empowering business owners in managing their operations.
  • We help you plan.

    We specialize in Wealth Management for your comfort.
  • We grow with You.

    From accounting to taxes and planning, we have tools for you.
  • IRS Issues?

    Installments or Offer in Compromise to help you back on track in no time.

Accounting and IRS Problem Solver

Mendoza & Company, Inc. is a full-service accounting and IRS problem-solving firm.  As a client, you gain a smart team that listens, gives sound advice and strengthens your organization.  Our approach is to collaborate with our clients and strive to work for you. We are confident and will equip you to make wise decisions today and tomorrow. It is our goal to develop and maintain mutually beneficial and long-term client relationships.

We specialize in the following services: IRS tax resolution, tax audit representation, tax preparation, write-up services, payroll, and consulting services. We have assisted a number of clients in analyzing their accounting software and integrating a customized QuickBooks system for their company’s needs.

Our clients are both domestic and international companies, as well as individuals in the Washington Metropolitan Area.

Our services are:

  • Accounting, 
  • Tax Preparation,
  • Tax Resolution,
  • Payroll Services.
  • IRS Problem Solver,
  • Installment Agreements,
  • Offer of Compromise,
  • IRS Tax Audit Representation.




20+ years using QuickBooks. Call us to help you setup QuickBooks for your business. Contact us at 301-962-1700.


News & Tax Tips


From our Clients!


Steve Smitson, Esq


Smitson Law, LLC

Mr. Mendoza is an extremely knowledgeable tax advisor and professional. For the last 8 years, he has prepared my personal tax returns and offered invaluable financial advice. Since I opened my law firm in 2014, Mr. Mendoza has prepared the office’s financial statements and reconciled my business accounts each month […]