South Dakota Streamlined Sales Tax Agreement: Everything You Need to Know

In an effort to simplify and standardize the collection and remittance of sales taxes, South Dakota implemented the Streamlined Sales Tax Agreement (SSTA). This agreement, which was first introduced in 2000, has been adopted by over 20 states across the United States.

What is the South Dakota Streamlined Sales Tax Agreement?

The South Dakota Streamlined Sales Tax Agreement is a voluntary agreement between states that simplifies the process of collecting and remitting sales taxes. The agreement provides a standardized set of rules and regulations for the collection, remittance, and distribution of sales taxes across multiple states.

The SSTA was introduced in response to the complex and often confusing sales tax laws that vary significantly across different states. By creating a unified system, the SSTA aims to reduce the administrative burden on businesses that operate across multiple states, while also providing a more consistent and predictable tax system for consumers.

How does the SSTA work?

Under the SSTA, businesses that are registered with the system are required to collect sales taxes on their sales across all participating states. This means that if a business makes a sale to a customer located in a state that participates in the SSTA, it must collect and remit sales tax on that sale.

To simplify the process of collecting and remitting sales taxes, the SSTA provides a standard set of definitions for taxable items, as well as a uniform tax rate for each state. Additionally, the SSTA provides a central registration system and online reporting tools that allow businesses to easily track and file their sales tax returns.

What are the benefits of the SSTA?

The adoption of the SSTA has many benefits for businesses and consumers alike. For businesses, the streamlined tax collection and reporting process can reduce administrative burdens and costs associated with complying with different state tax laws. The standardization of tax rates and definitions can also help to reduce the risk of unintentional noncompliance.

For consumers, the SSTA can provide a more predictable and consistent sales tax system, which can simplify the purchasing process and reduce confusion around tax rates and exemptions.

Additionally, the introduction of the SSTA has helped to reduce competition among states to attract businesses by offering tax incentives and exemptions. By creating a more level playing field, the SSTA has helped to promote fair competition and reduce the risk of tax evasion.


The South Dakota Streamlined Sales Tax Agreement is an innovative approach to simplifying and standardizing the collection and remittance of sales taxes across multiple states. By providing a centralized registration system, uniform tax rates, and standard definitions for taxable items, the SSTA has simplified the tax collection process for businesses and improved the consistency and predictability of the sales tax system for consumers. As more states adopt the SSTA, we can expect to see increased efficiency and fairness in the sales tax system.

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