A business has Ohio sales tax nexus the moment it keeps any physical footprint in Ohio, crosses $100,000 in gross Ohio receipts, or completes 200 or more transactions with Ohio buyers in the current or preceding calendar year. Once any of those triggers hit, you owe registration, collection, and remittance at a combined state and county rate that runs from 5.75% up to about 8%.1Ohio Department of Taxation. Sales and Use Tax Ignoring the trigger is expensive in a way most sellers don’t realize: if you never file, the four-year assessment clock never starts, so back tax can reach all the way to your first Ohio sale.2Ohio Legislative Service Commission. Ohio Revised Code 5739.16 – Four-Year Limitation for Assessments
What Counts as Physical Presence
Ohio Revised Code 5741.01 defines “substantial nexus” broadly enough to catch sellers who assume they have no Ohio ties. An office, distribution facility, warehouse, or similar location creates nexus whether you operate it yourself or a third party runs it for you.3Ohio Legislative Service Commission. Ohio Revised Code 5741.01 – Use Tax Definitions That last piece is where e-commerce sellers get caught. Inventory sitting in a fulfillment center in Columbus or Cincinnati creates nexus for you the same way leasing your own warehouse would.
People trigger nexus too. Employees, contractors, agents, solicitors, installers, and even someone who simply lets your customers pick up orders at their location can each be enough on their own.3Ohio Legislative Service Commission. Ohio Revised Code 5741.01 – Use Tax Definitions Regular deliveries into Ohio using your own trucks or a private fleet count; common-carrier shipments through UPS or FedEx do not, on their own, create physical nexus.
The $100,000 and 200-Transaction Thresholds
Remote sellers with no physical ties to Ohio still owe sales tax once either of two thresholds is crossed in the current or preceding calendar year:
- $100,000 in gross receipts from sales of tangible goods or taxable services to Ohio consumers, or
- 200 or more separate transactions with Ohio buyers.3Ohio Legislative Service Commission. Ohio Revised Code 5741.01 – Use Tax Definitions
Two details trip sellers up. Ohio measures gross receipts, not just taxable sales, so exempt transactions still push you toward the $100,000 line. And Ohio still enforces the 200-transaction test as of 2026, which several other states have dropped. A seller moving a high volume of low-dollar items can hit the transaction threshold long before the revenue threshold.
The obligation to collect starts the moment you cross either line. There is no statutory grace period. Most businesses need a few weeks to register and configure their tax software, but legally the clock starts at the threshold-crossing sale.
When a Marketplace Handles It for You
If you sell through Amazon, Etsy, Walmart Marketplace, or a similar platform, the platform itself is generally required to collect and remit Ohio sales tax on the sales it facilitates. Ohio law treats marketplace facilitators as sellers with the same duties as any other vendor.4Ohio Legislative Service Commission. Ohio Revised Code 5741.07 – Marketplace Facilitator Obligations
The coverage stops at the platform’s edge. Sales through your own website, phone orders, or any other direct channel are still your responsibility, and you still need to track whether those direct sales alone cross Ohio’s economic nexus thresholds. Sellers who rely entirely on a registered facilitator and make no direct Ohio sales may not need a separate vendor’s license, but anyone with a modest independent sales channel should not assume the platform is handling everything.
Click-Through and Affiliate Nexus
Ohio also recognizes click-through nexus. If you have an agreement with an Ohio resident who refers customers to you for a commission or other payment, and those referrals produce more than $10,000 in sales during the preceding twelve months, Ohio presumes you have nexus.5Ohio Department of Taxation. Use Tax Nexus Standards The referral can happen through a website link, a phone call, or an in-person introduction.
The presumption is rebuttable. You can defeat it by collecting written statements, obtained in good faith, from every Ohio-based affiliate confirming they did not solicit Ohio customers on your behalf during the prior twelve months.5Ohio Department of Taxation. Use Tax Nexus Standards Few businesses actually maintain those statements, so in practice the presumption usually sticks.
A related company operating in Ohio can also create nexus for you on its own if it uses the same or similar trade names, trademarks, or service marks, or sells a similar product line.3Ohio Legislative Service Commission. Ohio Revised Code 5741.01 – Use Tax Definitions
Registering and the Rate You Collect
Once you determine you have nexus, you need a vendor’s license before making taxable retail sales in Ohio. The license costs $50 per fixed place of business, up from $25 after House Bill 366 took effect in April 2025.6Ohio Department of Taxation. Vendor’s License Fee Change Coming Soon Remote sellers registering through the tax commissioner’s system pay the same $50 fee.7Ohio Legislative Service Commission. Ohio Revised Code 5739.17 – Vendor’s License Registration goes through the Ohio Business Gateway.
The state rate is 5.75%. Every county adds its own surcharge, up to 2.25%, so combined rates run roughly 6.5% to 8%.1Ohio Department of Taxation. Sales and Use Tax The rate turns on where the sale is delivered, not where the seller sits. Remote sellers need to collect at the rate applicable to the buyer’s shipping address, and county rates change periodically, so the Department of Taxation’s county-by-county rate table is worth checking at least quarterly.
When a buyer claims an exemption, collect and keep a completed exemption certificate. Without one, the seller is on the hook if an audit later finds the sale was taxable. Note that exempt sales still count toward the $100,000 economic nexus threshold, so exemptions don’t shield you from registration.
Filing, the Vendor Discount, and Penalties
Ohio assigns filing frequency based on how much sales tax you collect:
- Monthly filing if you collect more than $1,200 over any six-month period or more than $200 in any single month.
- Semi-annual filing if you consistently collect less than $200 per month.
Timely filers earn a vendor discount of 0.75% of the tax due, capped at $750 per vendor’s license per month as of January 2026.1Ohio Department of Taxation. Sales and Use Tax Motor vehicle dealers are not subject to the cap. Both the return and full payment must arrive by the due date; a single day late costs you the entire discount for that period.
Overdue sales tax accrues 7% annual interest in 2026, roughly 0.58% per month, running from the original due date rather than the date the Department discovers the shortfall.8Ohio Department of Taxation. Interest Rates A business that has quietly owed tax for years can face a substantial interest bill before penalties are even added.
If You Missed the Trigger Years Ago
Ohio’s standard statute of limitations for sales tax assessments is four years from the return date or filing date, whichever is later. That four-year clock never starts if you never filed a return, and the same exception applies when a vendor collected tax from customers but never remitted it.2Ohio Legislative Service Commission. Ohio Revised Code 5739.16 – Four-Year Limitation for Assessments In those situations Ohio can go back to the very first transaction that created nexus.
The Voluntary Disclosure Agreement program exists for sellers who realize they should have been collecting and want to fix the problem before the Department finds them. It is only available before you are selected for audit or investigation.9Ohio Department of Taxation. Use Tax, Streamlined Sales Tax, and Sales VDA The main benefits are a limited 36-month lookback and a full waiver of penalties on tax you should have collected but didn’t.
If you actually collected sales tax from customers and never remitted it, the terms are much harder: you owe every dollar collected with no lookback limit, plus a 10% penalty.9Ohio Department of Taxation. Use Tax, Streamlined Sales Tax, and Sales VDA Applicants can remain anonymous until they sign the agreement, so you can evaluate the numbers before committing.
The math matters. A seller who crossed the economic nexus threshold five years ago and never registered can pay 36 months of back tax plus interest through voluntary disclosure, or face assessment for every year of nexus with penalties on top if the Department finds them first.