South Dakota v. Wayfair Sales Tax Services

Complying with new and existing sales tax collection and remittance requirements in light of the U.S. Supreme Court decision regarding South Dakota v. Wayfair is poised to be one of the most challenging issues facing internet retailers and service providers today.

Duff & Phelps has deep experience and expertise in helping clients comply with new and existing requirements. Our clients benefit from a full suite of services including:


  • Evaluating revenue streams and economic nexus parameters for taxability guidance

  • Resolving prior period and prospective exposures

  • Voluntary disclosure and audit support

  • Ongoing compliance, matrix and policy and procedure development

  • Legislative updates

  • Internal and external communications

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