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Collings CPA Firm, PLLC

Our Values

Contact Us (520) 321-1334


Collings CPA Firm, PLLC (formerly Bitner & Collings, PLLC), a dynamic, forward-thinking Certified Public Accounting firm, has served the tax, accounting, and auditing needs of individuals and businesses in Southern Arizona since 1993. As a full-service firm, we offer a wide array of quality accounting, audit, and tax solutions that empower our clients to fulfill their goals. We serve a variety of clients including individuals, trusts, estates, businesses, employee benefits plans, and not-for-profit organizations.

The firm’s management team has tremendous experience that covers the breadth and depth of accounting issues. They continuously update their knowledge through professional education, training, supervision, and peer reviews. Collings CPA Firm, PLLC is dedicated to providing our clients with exceptional accounting solutions delivered in a responsive, efficient, and cost-effective manner.

Our Mission

The Collings CPA Firm, PLLC mission is to be the premiere source for results-oriented accounting, tax, and business advisory services to empower clients to streamline common and complex tasks in order to fulfill their organizational and individual missions, goals, and objectives.

Our firm provides outstanding service to our clients because of our dedication to the three underlying principles of professionalism, responsiveness and quality.


At Collings CPA Firm, we hold ourselves accountable to our clients. Because of the expertise, knowledge, and energy of our staff, every client receives high-quality personal and professional attention.

Our standards, variety of services, and highly qualified staff are the reason for the difference between our outstanding performance, and other firms. We ensure that every client is served by the expertise of our whole firm.


Our firm is responsive. Companies who choose our firm rely on competent advice and fast, accurate personnel. We provide many different services to individuals and large and small businesses. 

To see a listing of our services, please take a moment and look at our services page. Because we get new business from the people who know us best, client referrals have fueled our growth in the recent years.

Through years of hard work, we have earned the respect of individuals and businesses. This respect illustrates our numerous talents, dedication, and ability to respond quickly to each client's needs.


Our firm's reputation stems from the high standards we demand of ourselves.

Our primary goal as trusted accountants is to be available and to provide insightful advice to enable our clients to make informed financial decisions and feel at peace about every tax or audit engagement. We do not accept anything less from ourselves and this is what we deliver to you.

We feel it is extremely important to continually professionally educate ourselves to keep up with the ever-changing tax world. 

We guarantee to provide you with quality work done right the first time. 

We will answer all of your questions, as they impact both your tax and financial situations. We welcome you to contact us anytime.