The Illinois Pivot: A Major 2026 Milestone
One of the clearest 2026 developments for remote sellers is Illinois’ move away from the transaction-count test. For years, many states used a “dual-threshold” model for economic nexus, commonly $100,000 in sales or 200 separate transactions. Illinois has now removed the transaction threshold.
From January 1, 2026, remote sellers trigger Illinois Sales Tax registration based on $100,000 in cumulative gross receipts. This matters if you run a low-volume, high-value business. You now need to focus more heavily on revenue tracking than order count. It is essential to monitor this closely because other states have also been moving away from transaction-based thresholds since the broader post-Wayfair rollout. Doing this helps you avoid unnecessary registration mistakes and missed filing obligations.
Illinois has increased the Child Tax Credit from 20% to 40% of the federal amount for 2026, and a new 3% surtax on incomes over $1 million is currently being implemented.
Understanding Economic Nexus in 2026
Economic nexus remains the core rule for remote seller compliance. It means you can create a Sales Tax obligation in a state even without a physical presence such as a warehouse, office, or employees. If your sales activity crosses that state’s threshold, you may need to register, collect, file, and remit.
As of 2026, many states still use a $100,000 sales threshold, but the detail behind that figure varies. Some states measure gross sales. Others look at retail sales, taxable sales, or a specific lookback period. New York remains an important outlier with a threshold of $500,000 in gross receipts and more than 100 sales into the state during the previous four sales tax quarters.
Why this matters for your 2026 strategy:
- Track state-by-state sales: Keep live visibility over revenue, transaction volume, and channel mix.
- Register on time: Many states expect prompt registration once nexus is established.
- Check the tax base: Do not assume every state applies the threshold to the same sales figure.
- Review marketplace and direct sales together: In many cases, you need combined data to assess whether nexus has been triggered.
Don’t worry. Once your tracking is structured properly, the compliance process becomes much easier to control.
2026 US Federal Inflation Adjustments
The IRS has increased the standard deduction for 2026 to $32,200 for married couples filing jointly and $16,100 for single filers. The maximum Earned Income Tax Credit (EITC) has also risen to $8,231.
This matters because federal inflation adjustments can change cash flow planning, payroll expectations, and year-end tax projections. If you operate a US entity or manage cross-border reporting, it is essential to keep these updated figures in view as part of your wider compliance process.
Digital Services and SaaS: The New Tax Frontier
If your business provides digital services, streaming, or Software-as-a-Service (SaaS), 2026 is a pivotal year. More states have expanded their tax code to include digital products that were once exempt. This includes:
- SaaS Subscriptions: Many states now view SaaS as tangible personal property or a taxable service.
- Digital Downloads: E-books, music, and digital art are increasingly taxable.
- Streaming Services: A “Netflix tax” is becoming common at the state level to capture revenue from the digital economy.
If you are a digital agency or a SaaS provider based in the UK or Europe, you are not exempt from these rules. If your US-based customers exceed state thresholds, you must register, collect, and remit Sales Tax. Failure to do so can lead to a massive liability that eats directly into your SaaS valuations.
Marketplace Facilitator Rules: Amazon, TikTok Shop, and Beyond
Marketplace facilitator rules remain critical in 2026. Platforms such as Amazon, eBay, Etsy, Walmart Marketplace, and TikTok Shop generally collect and remit Sales Tax on marketplace orders in states with facilitator laws. That reduces your operational burden, but it does not remove your compliance responsibilities altogether.
You still need to watch for these issues:
- Registration can still be required: In some states, crossing the economic nexus threshold means you may still need a permit and ongoing filings, even if the marketplace collects the tax.
- Direct sales still sit with you: If you also sell through Shopify, WooCommerce, Magento, or direct invoices, you remain responsible for tax on those non-marketplace sales once nexus is triggered.
- Threshold testing can be broader than expected: Some states expect you to include marketplace sales when testing whether you have crossed the threshold, even if the marketplace is remitting the tax.
- Reporting mismatches create risk: If your marketplace reports, exemption records, and direct sales data do not reconcile, notices and audit questions become more likely.
TikTok Shop deserves special attention in 2026 because many sellers are expanding there quickly. Keep your tax settings, channel mapping, and filing logic aligned from the start. Doing this will save you time and reduce the risk of underreporting.
April 2026 Watchpoint: Remote Seller Compliance and Filing Accuracy
Remote seller compliance in 2026 is no longer just about knowing the threshold. You also need to keep your registrations, filing frequency, exemption support, and channel data accurate after nexus is triggered. This is where many international sellers run into trouble.
State tax authorities are paying closer attention to:
- Late registrations after the threshold has already been exceeded
- Incorrect sourcing on multistate sales
- Missing returns in states where a permit is active
- Marketplace vs direct sales mismatches in filed reports
- Poor exemption certificate controls for wholesale or resale transactions
This is why clean operational execution matters. Keep your state-by-state sales data updated. Match marketplace reports to your own records. File on time, even where the return is nil. Maintain exemption evidence properly.
