Historic Augusta has a diverse array of services that are fitting for a weekend stay or for long-term residents.

Our chamber membership includes everything from day spas to marketing companies. So whatever it is you need, be sure to look first in Augusta. Our hometown businesses are committed to making your weekend or extended stay as comfortable as possible.

The Boone Country Connection

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Unnerstall & Unnerstall, CPA, PC

Our History
Unnerstall and Unnerstall, CPA, P.C., began in 1958 with general accounting services for business and individuals. This developed into strategic planning for individual wealth maintenance, minimization of tax liabilities for individuals and corporations, payroll and consulting services. We believe in “old school” principles, but we also believe in keeping up with the needs of individuals and businesses in this rapidly changing world. In 1991 Tim took the business over from a retiring Moe Unnerstall and brought on Steve as a partner in order to help with the rapidly expanding workload.

Our Credentials
The firm of Unnerstall and Unnerstall, Certified Public Accountants, P.C., and the firm’s principals, Tim A. Unnerstall, C.P.A. and Steven G. Unnerstall, C.P.A., are members of the American Institute of Certified Public Accountants (MSCPA). Our firm participates in the AICPA’s Peer Review program administered by the MSCPA. On April 23, 2015, the Missouri East Acceptance Committee of the MSCPA accepted the report on the most recent peer review of our firm. We received a “pass” rating on our review, which is the highest rating possible. The review report and acceptance letter can be viewed here.

Our Areas of Specialization
Our entire operation is rooted in a tradition of meeting the highest standards of accounting practices. From this foundation, we offer the following specialized services: strategic tax planning for individuals and businesses, financial planning services for individuals and estates, consulting services for business development and management and full service or supplemental payroll production.


Contact Info

18 W. 2nd Street, Washington, MO 63090


Our office hours are:

8:30 – 5:00 Monday through Thursday from April 17 – January 31 (closed on holidays)

8:30 – 12:00 Friday from April 17 – January 31

8:30 – 5:00 Monday through Friday from February 1- April 15

8:30 – 12:00 Saturdays from February 1 – April 15