Master Accounting and Tax Service, LLC (MATS) provides quality accounting, tax, bookkeeping, payroll, and fractional CFO/controller services at an affordable cost and with the utmost integrity. We serve individuals and businesses across Arizona and New Mexico, backed by 20+ years of experience, with an Enrolled Agent (EA) and IRS Certified Acceptance Agent on staff.
We are working toward becoming a paperless, internet-based company to make working with our team easier and more convenient. We offer clients the flexibility of working with us online and provide a secure, encrypted web portal to access historical tax documents and safely send or receive information.
The owner, Bill, brings a rare level of tax and accounting expertise to the table. He has been a practicing accountant for over 25 years, with experience working for government agencies as an auditor and for businesses as a staff accountant, assistant controller, and controller. In 2004, Bill established MATS and continues to lead the firm from Tempe, serving clients across Arizona and New Mexico.
- 20+ years experience in taxes and payroll
- A+ BBB Business Review Rating
- Enrolled Agent on staff
- IRS Certified Acceptance Agent on staff
- Experienced government tax auditor
- Staff consultant for businesses
- Secure and encrypted online capabilities
- Registered tax return preparer and valid PTIN holder
“The job of a tax accountant is to protect their client by ensuring that the client is taking advantage of all available tax-saving opportunities as well as paying only their share of tax liability by preparing an accurate and honest tax return.”
— Owner, Bill Mease
Our Mission
Our mission is to provide our clients with the highest quality accounting, bookkeeping, payroll, and tax services. It is through our clients’ success that we succeed. Responsiveness and personal attention to every client is paramount to our shared success. We strive to provide exceptional service to each and every client.
Core Values
In order to achieve our mission and goals, we possess these core values:
- Honesty and Integrity – It is of utmost importance that we provide all of our services in an ethical and fair manner.
- Quality – We strive to provide the highest quality service possible to our clients that will meet or exceed their expectations.
- Professionalism and Knowledge – We are continually learning and growing in order to provide our clients with the most current tax law and advice.
- Dignity and Respect – We treat every client with dignity and respect.
