Wondering how does online sales tax work in 2025? If you operate an online business, even without a physical presence in other states, you may need to collect sales tax once you cross economic nexus thresholds. Let’s break down the latest developments.
2025 Changes: What’s New in Sales Tax Compliance
Economic Nexus Threshold Updates
As of mid‑2025, nearly every U.S. state with a sales tax enforces economic nexus rules based on $100,000 in gross sales and/or 200 transactions, typically measured over the current or prior calendar year.
- Notable Exceptions:
- Alabama: higher threshold at $250,000 sales
- New York: $500,000 in gross sales plus at least 100 transactions within the measurement period
- Texas: threshold remains at $500,000 in sales, with no transaction minimum.
- States Eliminating Transaction Counts: Many now use sales-only criteria (e.g. Massachusetts, Iowa).
Sales Tax Rate & Scope Changes
- Louisiana increased its combined rate to 5%.
- States like Colorado and Minnesota introduced retail delivery fees in mid‑2025 on taxable online purchases delivered within those states.
- Digital goods and services (e.g. software, IT support) are taxed in more states, expanding the scope beyond traditional tangible goods.
Marketplace Facilitator Laws in 2025
Nearly all states now require marketplace platforms (Amazon, Etsy, eBay, etc.) to collect and remit sales tax for third-party sellers, if the facilitator surpasses thresholds- commonly aligned with economic nexus rules.
- Some states require marketplace facilitators to file separate returns for third-party sales.
- Definitions vary certain states include booking platforms or specific digital payment facilitators under their laws.
How Does Online Sales Tax Work in 2025?
1. Identify Where You Have Customers
Your obligation arises based on customer locations- not where your business is registered.
2. Determine Nexus by State
Trigger sales tax responsibility if you meet any of the following types of nexus:
- Physical Nexus: presence through warehouses, contractors, employees, trade show attendance, or affiliate programs.
- Economic Nexus: meeting state thresholds (e.g. $100K in sales or 200 transactions; exceptions apply).
- Marketplace Facilitator Nexus: selling through platforms that exceed thresholds and are responsible for tax collection.
- Affiliate / Click-Through Nexus: marketing arrangements or referrals in a state may trigger obligations in some jurisdictions.
3. Calculate the Tax
Identify state- and local-level rates, product-specific rules, and potential retail delivery fees or taxable digital services.
4. Collect and Remit
Once registered in each obligated state, collect tax at checkout and remit via each state’s filing system- monthly, quarterly, or annually, as required.
Pros & Cons of Online Sales Tax- Updated for 2025
Pros
- Revenue for states funding public services.
- More equitable competition with physical stores.
- Automation tools simplify multi-state compliance.
- Marketplace laws reduce burden on small sellers selling via platforms.
Cons
- Price increases passed to consumers.
- Compliance complexity: tracking thresholds across ~13,000 jurisdictions.
- Digital taxation adds complexity for software and service providers.
- Uneven state rules hinder federal uniformity.
Small Business Challenges in 2025
Economic nexus becomes triggered at relatively low thresholds, exposing small businesses to multi-state obligations. Without automation, compliance costs are high, and audit risks escalate.
Why Automating Sales Tax Compliance Makes Sense
VAT IT Compliance (or similar platforms) can continuously monitor thresholds, handle marketplaces and affiliate scenarios, manage registration and filing, and track changes like delivery fee roll-outs- automating your nexus compliance across multiple states.

Final Thoughts
Stay compliant, save time, and avoid penalties- let us handle your online sales tax (and offline) headaches. Automate your compliance with VAT IT Compliance today and focus on growing your business instead of worrying about nexus rules. Contact us now!