or call 512-837-5432 for information. MK Vargas LLC makes our Client’s QuickBooks, Bookkeeping and Tax experience easy and stress-free. Here at MK Vargas, LLC we offer more than 40 years experience in business consulting, taxes, bookkeeping, financial services & payroll. Our operation has been in business for more than 25 years and since our inception in 1987, we have sustained a positive annual growth rate. We take pride in our name and our work; therefore, we strive to provide our clients with a wonderful experience and not just a service. We provide Full-Service Payroll Solutions.; M.K. Vargas, LLC is located at 7801 North Lamar Blvd. Suite F16 Austin, TX, 78752.