Butler County, Ohio Sales Tax Rate

Butler County's 6.50% rate sits below the statewide average of 7.14%. Across Ohio, combined rates run from 6.50% to 8.00%, so where you buy genuinely changes the bill. Ohio is unusual here: for most sales by an Ohio seller to an Ohio buyer the rate follows the seller's location, not yours (R.C. 5739.033(B)(1) sources intrastate sales to where the vendor receives the order). Out-of-state sellers and online marketplaces are the exception — they source to your delivery address, so your home county rate is the one that applies there. See all 88 Ohio county rates side by side.

Whether you're shopping in Hamilton or anywhere else in Butler County, a taxable purchase adds 0.75% in county and transit tax on top of Ohio's 5.75% state base — the 6.50% combined rate shown above. 3 of Ohio's 88 counties charge this exact rate, and none are lower — it's tied for the cheapest in the state. Cars, general merchandise, and prepared restaurant food are all taxed at 6.50%, while unprepared groceries and prescription drugs stay exempt statewide.

Ranked against the rest of the state, Butler County is the 85th-highest of Ohio's 88 counties, tied with 3 others on 6.50%. In hard numbers that matters most on big-ticket buys: a $30,000.00 car costs $1,950.00 in sales tax here. No Ohio county charges less, so no in-state address would lower that bill. At the other end, Cuyahoga County (8.00%) would charge $2,400.00. Ohio taxes a vehicle at the rate of the buyer's county of residence, not the dealer's, so the county on your registration is the one that sets the bill.

Butler County is seated at Hamilton, covers 467 square miles and is home to 400,128 people — the 7th-most-populous of Ohio's 88 counties, at about 856 people per square mile. 21 ZIP codes fall inside it, running from 45003 to 45071, and every one of them pays the same 6.50% — Ohio municipalities cannot levy a sales tax of their own, so there is no city surcharge anywhere in the county. Butler County also borders Indiana, where a different state's sales tax applies entirely — Ohio's 5.75% base does not follow you across the state line, but Ohio use tax generally does when you bring the item home.