Ohio Sales Tax Nexus for Online Sellers (2026)

Your online sales into Ohio are climbing, and a question starts nagging at the back of your mind: Am I supposed to be collecting tax there? Guess wrong, and the bill the state sends you won't just be the tax you skipped—it will be stacked with heavy penalties and interest on top.

"Nexus" is the legal line that decides whether you owe the state money, and Ohio drew it very clearly. Let's break down the exact thresholds, what actually counts toward them, and what you need to do the moment you cross the line.

The Two Thresholds

You have economic nexus in Ohio if, in the current or preceding calendar year, you exceed either of the following:

• $100,000 in gross sales into Ohio
• 200 separate transactions into Ohio

Notice the "either/or". Two hundred small, $5 sticker orders trips the wire, even if you are nowhere near $100,000 in revenue.

The "current or preceding year" part also matters. Cross the line in 2025 and you have nexus through the entirety of 2026—even if this year's sales volume drops off a cliff.

What Counts Toward the Threshold

This is where sellers undercount and get a terrible surprise in the mail:

• Marketplace sales count. Your Amazon, Etsy, and eBay volume into Ohio is included in the tally.
• Non-taxable sales count. Even selling exempt items pushes you toward the limit.
• Resale and wholesale are excluded. These do not count toward the threshold.

Economic Nexus Flowchart

graph TD
    A[Out-of-State Seller] --> B{">$100k Gross Sales in Ohio?"}
    B -->|Yes| C[Must Register & Collect Tax]
    B -->|No| D{200+ Transactions in Ohio?}
    D -->|Yes| C
    D -->|No| E[No Ohio Sales Tax Obligation]

The Trench Truth: For out-of-state sellers, stop trying to track every transaction manually. Ohio's economic nexus threshold is $100,000 in gross sales OR 200 or more separate transactions in the current or previous calendar year. Lean heavily on marketplace facilitator laws if you sell on Amazon or Shopify Ecosystems, but the second your independent store hits that 200-transaction mark (even if they are small $10 items), automate your tax compliance software (like Avalara or TaxJar) immediately. Ohio does not play around with out-of-state enforcement.

Physical Presence Still Counts

Economic nexus is the newer rule for online sellers, but the old rule never left. Physical nexus is triggered immediately by inventory stored in Ohio (including Amazon FBA fulfillment warehouses), employees, contractors, or an office in the state. If you have any of those, you have nexus regardless of your sales volume. Period.

What Happens at the Marketplace Level

If you sell only through a marketplace facilitator like Amazon or Etsy, the platform generally collects and remits the Ohio tax on those sales for you. You don't have to worry about it. But the exact second you sell through your own site or another untaxed channel and pass the threshold, the registration and collection burden falls entirely on you.

What to Do When You Cross the Line

1. Register for the right account through the Ohio Business Gateway—specifically a seller's use tax account for remote sellers.
2. Collect at the buyer's destination rate. Ohio uses strict destination-based sourcing. The county rate follows your customer's delivery address, not your warehouse.
3. Tax the shipping. If the item is taxable, the shipping is taxable. See is shipping taxable in Ohio for the weird exceptions.
4. File and remit on the exact schedule the state assigns you.

Use our calculator to preview exactly what you should be collecting on a typical order into a given county:

Frequently Asked Questions

What is the Ohio economic nexus threshold? $100,000 in gross sales or 200 transactions into Ohio in the current or preceding year.

Do marketplace sales count toward nexus? Yes, they are included in your threshold calculation.

Do exempt sales count? Yes. Non-taxable sales count. Only resale/wholesale is excluded.

Does storing inventory in Ohio create nexus? Yes. That creates physical nexus, regardless of your sales volume.

Crossed the line? Start by registering for a vendor's license, then review Ohio sales tax vs. use tax to understand your full obligation. Use our Ohio Sales Tax Calculator to accurately price your orders.

Sources

• Sales & Use Tax, Out-of-State Sellers — Ohio Department of Taxation
• Sales & Use Tax — Ohio Department of Taxation
• Ohio Business Gateway