Expert Sales Tax Consultants
We Fight So You Don’t Have To
Davis Davis & Harmon (DDH) is an award-winning multi-state sales tax firm. We know nationwide sales tax laws, how to interpret them, and how to advocate for our clients. We go above and beyond to navigate challenging sales tax issues to deliver the best results.
Audit Defense
Respond to an Audit by Your State Tax Board
We vigorously defend your company’s interests from the beginning of the audit through the appeals process, and seek to minimize sales tax assessed by your state. We consult with you on sales tax laws, policies, and statutory exemptions.
Compliance Programs
Ensure You Comply with All State Tax Laws
We’ll actively consult on your sales tax situation to stay ahead of issues before they become liabilities. Our sales tax expertise will help you confidently operate your business across multiple states and meet all of your tax obligations.
Nexus Analysis
Learn Your Tax Exposure Across Multiple States
We analyze your company’s sales/use tax risk and exposure associated with future expansions, mergers, acquisitions, and multi-state operations. We’ll help your business stay on top of complex tax situations as you grow.
Refund Recovery
Reclaim Overpaid State Taxes
Our refund recovery service analyzes your company’s sales/use tax reporting process to identify and recover overpayments. Our sales tax experts have recovered millions on behalf of our clients.
Research & Opinions
Get an Expert Opinion
We research complex taxability questions and provide written, expert opinions. Learn when you should collect sales tax based on your products/services and location with insights from DDH, your partner sales tax firm.
Voluntary Disclosure
We Advocate & Negotiate for You
If you have unreported sales tax exposure, our sales tax consulting team will help you make a voluntary disclosure. We’ll handle the full process of documentation, communications, and settlement negotiations.
A Proud Member of the Women’s Business Enterprise National Council (WBENC)
We’re proud of our CEO, Chanel Christoff Davis, who has been appointed to the Board of Directors of the Women’s Business Enterprise National Council (WBENC), a prestigious national organization dedicated to empowering women-owned businesses.
This honor highlights her leadership in sales tax consulting at Davis Davis & Harmon, one of the nation’s largest woman-owned sales tax firms!
Nexus challenges abound in all states. We handle the hard state challenges so you can run your business.
With Wayfair vs. South Dakota changing the landscape, even companies without physical presence now face sales tax obligations across multiple jurisdictions.
Get in touch with our expert sales tax team today and start your journey towards business success with DDH Tax.
Why Choose DDH Tax?
As a sales tax consulting firm, we offer comprehensive services ranging from sales and use tax training to our specialty of defending and protecting the interests of businesses during sales tax audits.
Learn Best Practices On Our Blog
See the important news, insights, and featured blog content from the tax experts of DDH Tax, including state-specific tax laws and best practices, events, and more.
We're Proud of Our Team
✅ Named Supplier of the Year In 2016 & 2019
✅ Award-Winning Women-Led Sales Tax Firm
✅ Certified SBA WOSB Woman Owned Small Business
“Their sales tax consulting team worked with me on a sales tax audit from hell. Their negotiation and business knowledge of the Texas Comptroller’s office was the kingpin in our success.”
Lisa B.
We have a 50-state reach with a unique focus on transaction tax.
With Wayfair vs. South Dakota changing the landscape, even companies without physical presence now face sales tax obligations across multiple jurisdictions.
Get in touch with our expert sales tax team today and start your journey towards business success with DDH Tax.