Credit card processing and merchant services in Dayton, OH
Dayton sales carry Montgomery County's 7.50% combined rate. Neighboring Warren County raised its rate to 7.25% on October 1, 2026, so check any terminal you run outside the city too.
Montgomery County's combined sales tax rate is 7.50% on the Ohio Department of Taxation's rate map for October 1, 2026. For a Dayton store, that's 5.75% for the state plus 1.75% in local taxes, and the map shows the county and transit pieces separately.
Neighboring Warren County's rate changed this quarter. The same map puts its county share at 1.50%, up from 1.00%, so the combined rate there rose from 6.75% to 7.25% on October 1, 2026. If you run a location in Warren County as well as in Dayton, check that terminal and any online checkout that charges Warren County's rate. A register still set to 6.75% falls half a point short on every taxable sale, which is $150 a month on $30,000 in sales, and that's tax the business may still have to pay.
Rates around the state show why each location needs its own setting. On the same map, Hamilton County, home of Cincinnati, is at 7.80%, Franklin County, home of Columbus, is at 8.00%, and Summit County, home of Akron, is at 6.75%. Our Cincinnati, Columbus and Akron pages cover those counties.
Ohio leaves card surcharges to Visa and Mastercard. A surcharge can't pass 3% on Visa or 4% on Mastercard, can't exceed what you pay to process, and can't go on debit or prepaid cards. The Ohio page has the sources, and our surcharging program handles the notices.
Dayton had 136,688 residents on July 1, 2025, by Census Bureau estimate, 0.7% fewer than in April 2020. We serve Dayton businesses remotely with POS terminals, a virtual terminal for invoices and phone orders, and interchange-plus pricing. Start with a free statement review.
Payment services we provide
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Common questions
What is the sales tax rate in Dayton, Ohio?
7.50% on taxable sales, Montgomery County's combined rate on the Ohio Department of Taxation's sales and use tax rate map for October 1, 2026. That's 5.75% for the state plus 1.75% in local taxes. County rates can change when a quarter starts, as Warren County's did, so check the department's rates each quarter.
Did any sales tax rate near Dayton change in October 2026?
Yes. Warren County's rate went from 6.75% to 7.25% on October 1, 2026: the department's rate map for that date shows the county's share at 1.50%, up from 1.00%. Montgomery County is at 7.50% on the same map. If you have a Warren County location, update its terminals and any online checkout that uses that county's rate.
Can one Dayton tax setting cover all my Ohio locations?
Only if they are all in Montgomery County. Ohio counties and transit authorities set their own additions, so the October 2026 rate map runs from 6.75% in Summit County to 8.00% in Franklin and Cuyahoga counties among the places our pages cover. Give every location its own setting on your POS terminals.
How can a Dayton contractor get paid on site?
With mobile payments: tap to pay on a phone or a mobile card reader at the job. For work billed afterward, the virtual terminal sends invoices and payment links and can run recurring billing for service plans. Our guide to card processing for contractors has more.
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Disclaimer: general information, not professional advice
This page is general educational information, not legal, tax, accounting or financial advice. Rules and rates vary by place and change, so confirm them with the official source and a qualified professional before you act. Full terms are in our Terms of Service.
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