Streamlined Sales Tax Governing Board

What Streamlined Sales Tax Governing Board does

The Streamlined Sales Tax Governing Board (SSTGB) is an interstate governmental nonprofit corporation established around 2000 to administer the Streamlined Sales and Use Tax Agreement (SSUTA) and reduce the complexity of multi-state sales tax compliance. It is headquartered in Westby, Wisconsin, and currently comprises 24 full member states and one associate member state (Tennessee), with representation from state tax authorities and advisory councils including the Business Advisory Council (BAC) and the State and Local Advisory Council (SLAC). The organization functions as a public-sector compact rather than a commercial enterprise and does not generate revenue through product sales; its operations are funded by member states under the SSUTA framework.

The SSTGB's core technology infrastructure consists of four interconnected systems: (1) the Rate and Boundary File System, which delivers standardized state-provided tax rate and jurisdiction databases updated quarterly and indexed by 5- and 9-digit ZIP codes; (2) the Streamlined Sales Tax Registration System (SSTRS), a single online application enabling businesses to register with any or all member states at no cost; (3) the State Taxability Matrix, which documents product taxability categories across member states; and (4) the Uniform Sales and Use Tax Exemption Certificate, accepted across all member states. These systems are complemented by a Certified Service Provider (CSP) program through which six contracted vendors—AccurateTax, Avalara, Avior, Exactor, Sovos, and TaxCloud—deliver free sales tax calculation, reporting, filing, and remittance services to qualifying volunteer sellers (remote sellers without physical presence in a member state). CSPs are compensated under contracts with member states rather than through fees charged to sellers.

The SSTGB's primary users are remote sellers and e-commerce businesses that must collect and remit sales tax in states where they lack physical presence following the U.S. Supreme Court's June 2018 decision in South Dakota v. Wayfair, Inc., which validated the SSUTA simplifications as sufficient grounds for economic nexus enforcement. Member state tax authorities are the secondary constituency, using the SSTGB infrastructure to standardize rate administration, exemption documentation, and taxability classification. Distribution is conducted through the streamlinedsalestax.org portal, email listservs for rate-file updates, periodic Governing Board and committee meetings, and a modest LinkedIn presence; there are no traditional go-to-market channels or paid marketing activities.

Name

Streamlined Sales Tax Governing Board

Legal name

Streamlined Sales Tax Governing Board, Inc.

Website

https://www.streamlinedsalestax.org

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

The Streamlined Sales Tax Governing Board is a non-profit interstate compact administering the Streamlined Sales and Use Tax Agreement across 24 member states, providing standardized registration, rate databases, exemption certificates, and free compliance services to remote sellers via six contracted Certified Service Providers.

Ownership category

akta.pro rank

Product category

Sales Tax Compliance Software

NAICS

Executive, Legislative, and Other General Government Support (921)

SIC

Services-Membership Organizations (8600), Services-Miscellaneous Business Services (7380)

akta.pro primary industry

Revenue Systems, E-Filing & Digital Tax Administration (BPAIADAO)

akta.pro secondary industries

Excise, VAT/Sales Tax & Indirect Tax Administration (BPAIADAH), State/Provincial Taxation & Revenue Administration (BPAIABAD)

Keywords

• Sales tax compliance
• Multi-state tax registration
• Tax rate databases
• Streamlined sales tax
• Economic nexus compliance

Headquarters

HQ city

Westby

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Operations, Others

Pricing tiers

Distribution channels2 records

Marketing channels4 records

Core offering

The Streamlined Sales Tax Governing Board administers the Streamlined Sales and Use Tax Agreement across 23 full member states and 1 associate member state, providing centralized sales tax registration (SSTRS), standardized Rate and Boundary Files databases updated quarterly, a State Taxability Matrix, uniform exemption certificates, and certified-service-provider coordination. Services to qualifying volunteer sellers (free sales tax calculation, filing, and remittance) are delivered through six contracted Certified Service Providers (AccurateTax, Avalara, Avior, Exactor, Sovos, TaxCloud).

Product overview

The Streamlined Sales Tax Governing Board (SSTGB) is a non-profit organization that facilitates cooperation between 24 full member states and 1 associate member state to create simpler, more uniform sales and use tax systems. The organization does not offer a single unified software product but rather provides a suite of compliance services including the Streamlined Sales Tax Registration System (SSTRS) for multi-state registration, Rate and Boundary Files databases for tax rate determination, a State Taxability Matrix for product taxability classification, and access to Certified Service Providers (CSPs) who offer free tax calculation and reporting services. Additional resources include exemption certificate management, remote seller guidance, marketplace seller services, and marketplace facilitator tools—all designed to reduce the compliance burden created by the South Dakota v. Wayfair decision.

Differentiator

Problem solved

Functional benefit

Products and services

• Streamlined Sales Tax Registration System (SSTRS) A single online registration application that allows businesses to register with any or all 24 Streamlined member states at no cost, replacing the need for separate registration in each state.
• Rate and Boundary Files Standardized state-provided rate files identifying state and local tax rates and boundary files identifying taxing jurisdictions based on 5- and 9-digit zip codes, updated quarterly for use in sales tax calculation applications.
• State Taxability Matrix A standardized matrix maintained by member states that helps businesses determine the taxability of various categories of products across Streamlined states.
• Uniform Sales and Use Tax Exemption Certificate A standardized exemption certificate that can be used to claim applicable sales and use tax exemptions across all Streamlined member states.
• Certified Service Providers (CSP) Program The SSTGB's certification and oversight program contracting six Certified Service Providers (AccurateTax, Avalara, Avior, Exactor, Sovos, TaxCloud) to deliver sales tax calculation, reporting, filing, remittance, and audit services to volunteer sellers in Streamlined member states at no cost to qualifying sellers.

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• AccurateTaxcoreTechnology or IntegrationCertified Service Provider (CSP) contracted with member states to provide sales tax calculation, reporting, filing, and remittance services for volunteer sellers in Streamlined states at no cost to qualifying sellers.
• AvalaracoreTechnology or IntegrationCertified Service Provider (CSP) contracted with member states to provide sales tax calculation, reporting, filing, and remittance services for volunteer sellers in Streamlined states at no cost to qualifying sellers.
• AviorcoreTechnology or IntegrationCertified Service Provider (CSP) contracted with member states to provide sales tax calculation, reporting, filing, and remittance services for volunteer sellers in Streamlined states at no cost to qualifying sellers.
• ExactorcoreTechnology or IntegrationCertified Service Provider (CSP) contracted with member states to provide sales tax calculation, reporting, filing, and remittance services for volunteer sellers in Streamlined states at no cost to qualifying sellers.
• SovoscoreTechnology or IntegrationCertified Service Provider (CSP) contracted with member states to provide sales tax calculation, reporting, filing, and remittance services for volunteer sellers in Streamlined states at no cost to qualifying sellers.
• TaxCloudcoreTechnology or IntegrationCertified Service Provider (CSP) contracted with member states to provide sales tax calculation, reporting, filing, and remittance services for volunteer sellers in Streamlined states at no cost to qualifying sellers.
• National Governors Association (NGA)minorOthersNGA is listed as a national organization partner on the Quick Links section of the Streamlined website. The NGA represents the nation's Governors and is involved in policy advocacy that intersects with state tax policy.
• Federation of Tax Administrators (FTA)minorOthersFTA is listed as a national organization partner. FTA serves as a source of information and expertise for state tax administrators on state tax agencies and systems affecting tax policy and administration.
• Multistate Tax Commission (MTC)minorOthersMTC is listed as a national organization partner. MTC works with state tax agencies on multistate tax issues and is referenced in the context of sales tax administration.
• National Conference of State Legislatures (NCSL)minorOthersNCSL is listed as a national organization partner. NCSL provides resources and tools for legislators and staff on state legislatures, including tax-related matters.

Scale indicators1 record

Expansion highlights5 records

Direct peers

• Avalara: One of six Certified Service Providers contracted with SSTGB member states to provide free sales tax calculation, reporting, filing, and remittance services to volunteer sellers. Avalara operates a leading commercial sales-tax automation platform that directly consumes SSTGB's Rate & Boundary Files and competes in the same end market.
• Sovos: Contracted Certified Service Provider under the SSTGB framework, providing sales tax compliance services for volunteer sellers in Streamlined states. Sovos operates a tax compliance platform that integrates SSTGB's standardized rate and taxability data.
• TaxCloud: Certified Service Provider within the SSTGB program offering free sales tax calculation and filing for volunteer sellers in Streamlined states. TaxCloud is purpose-built around the Streamlined framework and is one of the most aligned commercial implementations of the SSUTA.
• AccurateTax: Contracted Certified Service Provider under SSTGB, delivering sales tax calculation, reporting, and remittance services for remote sellers in Streamlined member states. Operates in the same compliance-services market as SSTGB-orchestrated CSPs.

Broad incumbents

• Vertex, Inc. Established indirect-tax software provider offering enterprise-grade sales tax calculation, filing, and compliance solutions. While not an SSTGB CSP, Vertex competes for the same enterprise sales tax workload and indirectly relies on state rate data SSTGB helps standardize.
• Thomson Reuters (ONESOURCE): Major tax compliance software suite covering sales and use tax determination, filing, and reporting for multinational enterprises. Operates in the same sales tax compliance category but serves a broader enterprise and global tax portfolio than SSTGB's narrow state-tax scope.
• Wolters Kluwer (CCH / SureTax): Provides sales and use tax compliance software (SureTax) as part of its broader tax and accounting portfolio. Competes with SSTGB-anchored CSP offerings for the enterprise and mid-market sales tax automation workload.
• ADP: While primarily known for payroll, ADP offers tax compliance and filing services that intersect with sales tax for small and mid-sized businesses. Operates in adjacent tax-services territory with overlapping customer segments but a much broader product portfolio.

Others

• Federation of Tax Administrators (FTA): National organization supporting state tax administrators — a peer interstate/governmental body listed as a partner on SSTGB's website. Not a competitor but a closely related ecosystem participant in the same state tax administration domain.
• Multistate Tax Commission (MTC): Interstate compact supporting state tax agencies on multistate tax issues; listed as a national partner on SSTGB's website. Operates as a peer governmental body in state tax administration rather than a direct commercial competitor.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/streamlined-sales-tax-governing-board-inc

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Streamlined Sales Tax Governing Board