Sales Tax Resources & Updates

Bookmark this page, because it’ll be your vault for all things sales and use tax! Here you’ll find quick-reference charts, in-depth whitepapers, helpful tools, legislative updates, directories, FAQs and more.

How to Use This Page: Simply scroll to browse all our sales tax resources that you can use in your job today. You can refine your search by topic and/or jurisdiction or search by keyword. For a handy chart of key sales tax facts by state, select a jurisdiction.

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Quick Access Resources

Jurisdiction

Selecting a Jurisdiction will take you to that Jurisdiction's page.

Featured Resources

Remote Seller Resources

Comprehensive list of resources for remote sellers following the South Dakota v. Wayfair Supreme Court decision – including state notices, videos, articles, training opportunities, and more.

Helpful Links

We’ve gathered some websites that may be helpful in finding answers to your sales tax questions or addressing your sales tax needs.

Remote Seller Nexus Chart

This remote seller nexus chart lists the states that have passed one or more types of legislation regarding nexus.

Missouri Rules Certain Digital Products and Software Subscriptions as Not Subject to Sales Tax

Missouri LR 8408 finds video game cosmetic items and online software subscriptions are not taxable, and the platform is not a marketplace facilitator.

Colorado Temporarily Pauses SUTS Bulk Address Lookup Feature

Colorado’s Sales and Use Tax System (SUTS) paused bulk address lookups on Sept. 29, 2026. See what still works and when bulk lookups are set to return.

Alabama Approves Change to Sales Tax Rules for Credit Card Fees

Alabama approved a change to its sales and use tax rules so credit card transaction fees added to a purchase will be excluded from the taxable sales price starting Sept. 1, 2026. Learn what changes for retailers, invoices, and compliance.

Delays Likely for Illinois Digital Asset Tax as Litigation Begins

The Digital Chamber sued Illinois over its digital asset tax on crypto, citing the Commerce Clause and the Internet Tax Freedom Act. See what could change.

Illinois Delays Digital Asset Transaction Tax as Legal Challenge Moves Forward

Illinois pushed its 0.2% digital asset transaction tax on crypto to July 1, 2027. See who owes it, the $100,000 threshold, and the legal challenges.

Illinois Imposes New Tax on Targeted Advertising Services

Illinois S.B. 3019 adds a 10% tax on targeted advertising gross receipts starting Jan. 1, 2027. See who must remit, what is covered, and the legal challenge.

Meet Katarina Fallico, Winner of the 2026 Sales Tax Nerd Award

Sales Tax Institute names Katarina Fallico, Lead Legal Counsel at FishingBooker, its 2026 Sales Tax Nerd Award winner. See how she bridges tax and tech.

California Expands Sales Tax to Software and SaaS Under SB 122

Scroll for the most recent updates: With the passage of SB 122, California’s definition of “tangible personal property” (TPP) has expanded to include certain digital products, specifically prewritten (canned) computer software, regardless of how it is delivered. Historically, California limited…

Europe Is One Market. VAT Is Not.

Selling into Europe? VAT rules, rates, and registration differ by country. Learn what U.S. companies should ask before shipping, stocking, or selling digitally.

Platform and Marketplace Fees No Longer Taxable in Texas

A Texas Comptroller order ends sales tax on fees sellers pay platforms like Amazon and DoorDash. See what changed, what’s covered, and what to do next.

South Carolina Provides Guidance on Exemption for Internet Access and Communications Service Providers

South Carolina DOR guidance explains the sales and use tax exemption for internet access and communications providers, who qualifies, and how to claim a refund.

Fuel Tax Holidays Gain Momentum as States Look to Ease Rising Costs

Ohio, Georgia, and Indiana have suspended fuel taxes to ease rising costs, while Texas and North Dakota loosened diesel rules. See each state’s dates.

Oklahoma Provides Helpful Sales Tax Guidance for SaaS Companies

An Oklahoma Tax Commission private letter ruling found one SaaS company’s electronically delivered subscriptions exempt from sales tax, plus setup and support.

Florida Offers Limited Time Sales Tax Refund for Residential Home-Hardening Products

Florida homeowners can claim up to $500 back in sales tax on impact-resistant windows and doors bought through 2029. See who qualifies and how to apply.

New York Tax Appeals Decision Highlights Limits of Test Periods For Audits and Refund Claims

A New York Tax Appeals ruling confirms that audit test period projections cannot substitute for documented proof when businesses file sales tax refund claims.

6 Sales Tax Questions Your Search Bar Cannot Answer

From nexus to resale certificates, these six sales tax questions trip up even experienced professionals. Get clear answers you won\’t find in a quick search.

New York Rules SaaS Vendor Management System Fees as Taxable Software Licensing

The New York Tax Appeals Tribunal has upheld an earlier ruling by an administrative law judge (ALJ) that fees charged by a taxpayer for their vendor management system (VMS), provided through a software-as-a-service (SaaS) model, are subject to taxation as software licensing.

Illinois Social Media User Tax and Digital Ad Tax Face Further Legal Challenges

NetChoice filed new lawsuits on September 11, 2026, challenging Illinois\’ Social Media User Tax and Digital Ad Tax as unconstitutional and federally preempted.

District of Columbia General Sales Tax Rate Increases to 7% on October 1, 2027

Washington D.C.\’s sales tax rate rises from 6% to 7% on October 1, 2026, covering tangible property, digital goods, and services. See what\’s changing.

South Carolina Holds that Amazon Owes Tax on Pre-Wayfair Third Party Sales

A judge has held that Amazon owes uncollected taxes, penalties, and interest on third-party sales made pre-Wayfair.

New York Offers Penalty and Interest Discount Program for Sales Tax

New York\’s PAID program waives 100% of penalties and 50% of interest on eligible sales tax bills paid in full by December 31, 2026. No application needed.

Illinois Guidance: Retailers’ Occupation Tax Does Not Apply to Incidental Refreshments Included with Party Room Rentals

Illinois GIL ST 26-0035: incidental refreshments in party room rentals aren\’t ROT-taxable — but the business owes use tax on the food cost.

Idaho Amended Form 850 Now Available Through TAP Portal

Effective July 30, 2026, Idaho taxpayers can file amended Form 850 (Sales and Use Tax Return) online through the Idaho State Tax Commission\’s TAP portal.

DNA Testing Services Are Nontaxable, Though Kits Are Taxable in Georgia

Georgia ruled DNA testing services are exempt from sales tax while sample kits are taxable — the taxpayer owes use tax on kits (LR SUT-2026-02).