A comprehensive accounting firm, Tarwater and Company provides a variety of services to companies of all sizes across the nation. Tarwater and Company has a particularly deep background in navigating nonprofits through audits, including the A-133 audit.

1. The Role of the A-133 Audit
By Tarwater and Company

2. Introduction
• A comprehensive accounting firm, Tarwater and
Company provides a variety of services to companies of
all sizes across the nation. Tarwater and Company has a
particularly deep background in navigating nonprofits
through audits, including the A-133 audit.
The United States Office of Management and Budget’s
(OMB) Circular A-133 and Single Audit Act of 1984
establish uniform reporting requirements to ensure the
proper expenditure of the $400 billion in grants that the
federal government awards each year to non-federal
organizations like nonprofits. Issued by the OMB in
1990, Circular A-133 was created to help stakeholders
implement the new Single Audit.

3. A-133 Audit
• The OMB explains that a single audit is designed to be a
more economical audit process for non-federal groups,
as it eliminates the need for several audits of separate
programs.
Usually conducted by an independent certified public
accountant (CPA), the A-133 audit involves compliance
and financial components, with new compliance
supplements issued each year. The audit examines a
wide range of information, such as federal award
transactions and internal control systems, as well as
ensures an organization’s operations remain in
compliance with a series of requirements.