Ohio Sales Tax Nexus Checker — 2026

The Ohio economic nexus threshold is $100,000 in revenue or 200 transactions measured over the previous or current calendar year. Once you cross this threshold, you must register with Ohio, collect Ohio sales tax on all taxable sales, and file regular returns. Marketplace sales through Amazon, Etsy, and similar platforms count toward the $100,000 threshold.

Ohio Sales Tax Nexus — Frequently Asked Questions

What is the sales tax nexus threshold in Ohio?

The economic nexus threshold in Ohio is $100,000 in sales revenue or 200 transactions in the previous or current calendar year. Meeting either threshold — revenue or transaction count — requires you to register and collect Ohio sales tax.

How does Ohio measure the economic nexus period?

Ohio uses the previous or current calendar year as its measurement window. This means if you exceed $100,000 at any point during the current calendar year, you have nexus immediately — you do not need to wait until the following year to register. Monitor your Ohio revenue in real time.

Does Ohio include marketplace sales in the nexus threshold?

Yes. Ohio includes marketplace sales in its economic nexus threshold calculation. Sales you make through Amazon, Etsy, or other marketplace facilitators count toward the $100,000 threshold alongside your direct-channel sales.

How do I register for sales tax in Ohio?

Register online at Ohio's official tax portal: https://gateway.ohio.gov/. Have your federal EIN, business legal name, mailing address, and anticipated first taxable sale date ready. Most states complete registration instantly and issue a permit number you can use immediately.

What happens after I exceed the Ohio nexus threshold?

Once you meet the Ohio economic nexus threshold, you must register, collect the correct Ohio sales tax rate on all taxable sales, file regular returns (frequency depends on your sales volume — monthly, quarterly, or annually), and remit the collected tax by each due date. Retroactive liability can apply to sales made after you crossed the threshold but before you registered, so acting quickly after exceeding the threshold limits your exposure.