Sales and Income Tax

Welcome to Sales and Income Tax Advisory Network.
Learn more about us and make an appointment today.
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About Sales & Income Tax Advisory Network

The Sales and Income Tax Advisory Network provides sales tax education, training, expert resources, and support for businesses, organizations, and tax advisors.

The majority of sales tax filers are small businesses. According to the Wisconsin Department of Revenue’s most recent statistics, approximately 70% of businesses reporting sales tax had total taxable receipts of less than $500,000 in 2017. Small businesses also have the fewest resources for navigating the complex tax laws.

Our CEO, Holly Hoffman, spent the last 8 years as an auditor, speaker, and technical tax specialist for the Wisconsin Department of Revenue. Drawing upon her experiences and the feedback she received at presentations to small businesses around the state, she shaped the Sales and Income Tax Advisory Network to provide small to medium-sized businesses with affordable options for staff training and access to sales and use tax experts for guidance.

Holly Hoffman


Holly Hoffman, CEO of Sales & Income Tax Advisory Network bio picture.
Advisory Board - Sales & Income Tax

Sales & Income Tax Mission

Our Mission
We cherish the trust our clients have placed in us and our common purpose is to positively affect the quality of life for our clients, associates, families, friends, and communities.

Secondly, our organization is passionate in providing services which assist our clients in reaching their financial goals by conducting ourselves with a positive attitude, integrity, professionalism, and confidentiality.

Lastly, we strive to proactively communicate amongst ourselves and with our clients to provide products and services unparalleled in quality, value, and timeliness.

Our Advisory Board

Holly Hoffman
Doug Gross
Jack DeYoung

Meet the Board Members



– Businesses
– Tax Advisors
– Associations
Vendors/General Contractors


-Active Audit
-Reverse Audit
-Past Audit

Multi-State Nexus
& Taxability Review

– Do Business in Multiple States
– Want to Do Business in Multiple States


– Webinars
– Seminars
– Custom Training

Business News & Resources

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