What is Illinois's e-commerce sales tax in 2026?

Illinois's 2026 e-commerce sales tax: out-of-state sellers collect once they cross $100,000 in Illinois-destination revenue. As a remote seller, charge the 6.25% state rate plus any applicable local rate at the buyer's ship-to address.

Do I collect sales tax on every Illinois order?

You collect Illinois sales tax once you cross the economic nexus threshold ($100,000). Below threshold, you don't need to collect unless you have physical nexus (office, employees, inventory in Illinois).

What rate do I charge for Illinois e-commerce sales?

For sales shipped into Illinois from out of state, charge the 6.25% state rate plus any applicable local rate at the buyer's ship-to address. Most e-commerce platforms (Shopify, WooCommerce) can apply destination rates automatically when you enable IL in tax settings. Sales that both begin and end inside Illinois can follow a different sourcing rule in a minority of states — check with the Illinois Department of Revenue if you are an in-state seller.

Do I need to collect sales tax on shipping in Illinois?

It depends on state-specific rules. Many states tax shipping when the product is taxable; some states exempt shipping if separately stated. Check Illinois's specific policy or use a tax service that encodes the rule.

Illinois E-commerce Sales Tax Nexus Guide — 2026

Updated 2026-07-20

Reviewed by Nexus by State research team using official state tax sources. Last reviewed 2026-07-20.

Guide content last reviewed: 2026-07-20

If your E-commerce business sells $100,000 into Illinois in a calendar year, you have economic nexus and must register, collect, and remit Illinois sales tax.

E-commerce sales tax basics in Illinois

For a direct-to-consumer store (Shopify, WooCommerce, BigCommerce, or custom) shipping to Illinois buyers, the economic nexus trigger is $100,000 in IL-destination revenue (effective 2026-01-01). Crossing that bar obligates registration, collection, and periodic filing.

Once registered, charge 6.25% state tax plus the applicable local rate — averaging 2.71% across Illinois but varying by the buyer's shipping ZIP on most tangible personal property. Digital products, subscriptions, and professional services have different treatment — see the Illinois SaaS page if you sell software or digital goods.

Registration + collection checklist

Register with the Illinois Department of Revenue for a sales tax permit.
Configure your cart platform to collect tax at the destination rate. Enable IL in your tax settings.
As a remote seller, charge the combined state + local rate at the customer's delivery address — interstate sales are sourced to the destination, not to where you ship from.
File returns on the cadence your DOR assigns (monthly, quarterly, or annually).
Track your Illinois-sourced revenue monthly so you know when you're approaching or below threshold for the next period.

Common mistakes e-commerce sellers make in Illinois

Using origin-based rates (your HQ state's rate) instead of destination rates. A sale shipped from outside Illinois into Illinois is sourced to the buyer's delivery address, so charge the IL rate, not your home state's. Intrastate sales are a separate question: a minority of US states apply origin sourcing to sales that both begin and end in-state, so if your business is located in Illinois, confirm the intrastate rule with the Illinois Department of Revenue before configuring your cart.
Guessing at how marketplace sales count toward the Illinois threshold. States split on this — some let a seller exclude sales a registered marketplace facilitator already collected on, others require those sales to be included in the threshold test even though the marketplace remits the tax. Read Illinois’s own rule on the Illinois marketplace facilitator page before adding or removing them from your nexus-tracking spreadsheet.
Waiting until year-end to register. Registration and collection deadlines run from the threshold-crossing date, and the length of that grace period is set by each state — some require collection on the very next transaction, others allow until the first day of a later month. Check Illinois’s deadline with the DOR as soon as you cross $100,000; back-tax exposure accrues for every day you sell unregistered.
Forgetting to file zero returns once registered. Missing filings trigger penalties even when you owe no tax.

Illinois nexus note

Illinois sales tax nexus and economic nexus threshold: beginning January 1, 2026, a remote retailer is subject to Illinois state and local Retailers' Occupation Tax when it has $100,000 or more in cumulative gross receipts from sales of tangible personal property to Illinois purchasers during the lookback period. The prior 200-transaction threshold applied from 2021 through 2025 but no longer applies for 2026 and later periods. Remote retailers and marketplace facilitators determine the threshold quarterly for the preceding 12-month period, and destination-based local ROT generally applies when the sale is sourced outside Illinois.

What to do next

Read the full Illinois overview for thresholds, filing frequency, marketplace facilitator rules, and registration links. Use the nexus calculator to check whether you have crossed the threshold. For background on the post-Wayfair economic nexus framework, see the pillar guide.

E-commerce sales tax in other states

Compare Illinois's e-commerce rules with nearby and similar states' e-commerce sales tax guides:

Frequently asked questions

What is Illinois's e-commerce sales tax in 2026?: Illinois's 2026 e-commerce sales tax: out-of-state sellers collect once they cross $100,000 in Illinois-destination revenue. As a remote seller, charge the 6.25% state rate plus any applicable local rate at the buyer's ship-to address.
Do I collect sales tax on every Illinois order?: You collect Illinois sales tax once you cross the economic nexus threshold ($100,000). Below threshold, you don't need to collect unless you have physical nexus (office, employees, inventory in Illinois).
What rate do I charge for Illinois e-commerce sales?: For sales shipped into Illinois from out of state, charge the 6.25% state rate plus any applicable local rate at the buyer's ship-to address. Most e-commerce platforms (Shopify, WooCommerce) can apply destination rates automatically when you enable IL in tax settings. Sales that both begin and end inside Illinois can follow a different sourcing rule in a minority of states — check with the Illinois Department of Revenue if you are an in-state seller.
Do I need to collect sales tax on shipping in Illinois?: It depends on state-specific rules. Many states tax shipping when the product is taxable; some states exempt shipping if separately stated. Check Illinois's specific policy or use a tax service that encodes the rule.

Sources

date_retrieved: 2026-05-22