Ohio vs. Indiana Sales Tax 2026: Border Rates & Rules

Direct Answer: Whether sales tax is higher in Ohio or Indiana depends on the county. Indiana levies a flat, uniform 7.00% state sales tax with zero local county or city add-ons (IC 6-2.5-2-2). Along the Ohio border, Ohio combined county rates vary from 6.50% in Butler County (cheaper than Indiana) to 7.80% in Hamilton County (more expensive than Indiana), with most border counties sitting at 7.25%.

The border between western Ohio and eastern Indiana stretches nearly 180 miles from Lake Erie's watershed down to the Ohio River. Communities like Richmond, IN and Eaton, OH; Fort Wayne, IN and Van Wert, OH; or Union City (which literally straddles the state line down Boundary Street) interact as single economic units.

Because the two states utilize completely different tax architectures—Indiana relying on a high, uniform state rate with no local taxes, and Ohio using a moderate state rate layered with local county piggyback taxes—the financial impact of crossing the border depends on what you buy, where you register it, and which county you call home.

To calculate your exact tax rate or determine out-of-state reciprocal tax credits, use our interactive Ohio Use Tax Calculator or check county numbers in our Ohio Sales Tax Rates Directory.

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Side-by-Side Rate Comparison: Ohio Border Counties vs. Indiana

Indiana's sales tax is established under the Indiana Code (IC 6-2.5-2-2) at a uniform 7.00%. There are no city sales taxes, county sales taxes, or transit district sales taxes anywhere in the state.

Ohio, by contrast, levies a statewide base rate of 5.75% (R.C. 5739.02), while each border county levies its own permissive county sales tax (R.C. 5739.021).

The 9 Ohio Counties Bordering Indiana

The Border Dynamic: Where Does Crossing Pay Off?

• Shopping in Butler County, OH (6.50%): Residents of southeastern Indiana (e.g., Dearborn or Franklin counties) can save 0.50% on general retail merchandise by shopping in Oxford, Fairfield, or West Chester.
• Shopping in Richmond or Fort Wayne, IN (7.00%): Residents of Hamilton County (7.80%) save 0.80% at the register in Indiana, while residents of Preble, Darke, and Van Wert (7.25%) save 0.25%.

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Retail Shopping Across the Border & The Reciprocal Credit

When you travel across the state line to shop, how does sales and use tax legally apply?

In-Store Purchases (Origin Sourced)

When you physically walk into an Indiana store (such as a hardware store or electronics center in Richmond or Fort Wayne), you pay Indiana's 7.00% sales tax at the cash register. The store is located in Indiana, so Indiana tax applies to over-the-counter sales.

Ohio Consumer Use Tax & Out-of-State Credits

When you transport that merchandise back home to Ohio, you are subject to the Ohio Consumer Use Tax under R.C. 5741.02. However, under R.C. 5741.02(C)(5), Ohio gives dollar-for-dollar credit for the 7.00% sales tax paid to Indiana:

Case 1: You live in Hamilton County (7.80% rate)

• You buy a $2,000 television in Indiana and pay $140.00 in Indiana tax (7.00%).
• Hamilton County's use tax liability is $156.00 ($2,000 × 7.80%).
• Ohio credits the $140.00 paid to Indiana.
• You owe Ohio the remaining $16.00 ($156.00 − $140.00) on Line 12 of your Ohio IT 1040.

Case 2: You live in Preble County or Darke County (7.25% rate)

• You buy a $1,000 lawnmower in Richmond, IN and pay $70.00 in Indiana tax (7.00%).
• Your home county use tax liability is $72.50 ($1,000 × 7.25%).
• Ohio credits the $70.00 paid to Indiana.
• You owe Ohio the remaining $2.50.

Case 3: You live in Butler County (6.50% rate)

• You buy $500 of power tools in Indiana and pay $35.00 in Indiana tax (7.00%).
• Your home county use tax liability is only $32.50 ($500 × 6.50%).
• Your credit ($35.00) fully covers your Ohio liability.
• You owe Ohio $0.00.
• Important: Ohio does not refund the extra $2.50 you paid to Indiana.

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Buying a Vehicle in Indiana When You Live in Ohio

Because motor vehicles represent major financial transactions, cross-border car shopping is common along I-70 and I-80/90.

Motor Vehicle Sourcing Follows Residence

Motor vehicles do not follow origin sourcing. Under Ohio Revised Code R.C. 5739.033(C) and Indiana statutory law, motor vehicles are taxed based on the buyer's state and county of residence.

Indiana Form ST-108E: How Out-of-State Dealer Purchases Work

When an Ohio resident purchases a car, truck, or motorcycle from a licensed Indiana auto dealership:

1. You provide proof of your Ohio residence (Ohio driver's license).
2. The Indiana dealership executes Indiana Form ST-108E (Certificate of Gross Retail or Use Tax Exemption for the Purchase of a Motor Vehicle).
3. Under Form ST-108E, the dealership exempts you from paying Indiana's 7.00% sales tax at the dealership, provided the vehicle will be immediately transported and titled in Ohio within 30 days.
4. The dealer issues a 45-day temporary paper license tag.
5. You bring the title documents and bill of sale to your local Ohio County Clerk of Courts Title Office.
6. The Clerk of Courts assesses Ohio sales tax at your home county rate (6.50% to 8.00%) plus the flat $18.00 title fee (R.C. 4505.09).

The Trade-In Trap: New vs. Used Vehicles

Pay close attention to trade-in tax allowances when shopping across the border:

• Indiana Rule: Indiana allows a trade-in tax deduction on both new and used vehicles (IC 6-2.5-1-5).
• Ohio Rule: Ohio law allows a trade-in credit strictly on new motor vehicles purchased from a licensed dealer (R.C. 5739.01(H)(2)). Used cars are taxed on the full purchase price.
• The Result: Even if you buy in Indiana, because the vehicle is titled in Ohio, Ohio rules apply. If you trade in your old car on a used vehicle in Indiana, the Ohio Clerk of Courts will disallow the trade-in allowance and charge you sales tax on the full purchase price.

Calculate your exact out-the-door costs with our Ohio Car Sales Tax Calculator and read our Ohio Car Sales Tax Guide.

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Operating a Business on the Ohio-Indiana Border

Commercial enterprises operating across the state line must comply with both Ohio and Indiana sales and use tax laws.

1. Interstate Delivery & Destination Sourcing

If an Ohio business ships merchandise to an Indiana customer:

• Shipments delivered by common carrier (USPS, FedEx, UPS) or delivered in your company trucks to an Indiana address are destination-sourced to Indiana.
• You do not charge Ohio sales tax.
• You must charge 7.00% Indiana sales tax if your business has nexus in Indiana.

2. Indiana Economic Nexus Threshold

An Ohio remote seller with no physical store, office, or employees in Indiana must register with the Indiana Department of Revenue once it reaches Indiana's economic nexus threshold:

• $100,000 in gross annual sales delivered into Indiana during the current or preceding calendar year (IC 6-2.5-8-1).
• (Note: Indiana repealed its 200-transaction threshold via Senate Bill 228, aligning with modern economic nexus standards).

3. Agricultural Exemptions on the Border

Farming represents the largest shared industry along the western border. Both states provide broad exemptions for commercial production:

• Ohio: Farmers claim exemption using Form STEC B (Blanket Exemption Certificate) or STEC U citing agricultural production under R.C. 5739.02(B)(42)(n).
• Indiana: Indiana farmers issue Form AG-1 (Agricultural Exemption Certificate) under IC 6-2.5-5-2 to exempt tractors, implements, feed, seed, and fertilizer.

For overall corporate filing rules, consult our Ohio business sales tax compliance guide.

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Frequently Asked Questions

Is sales tax higher in Ohio or Indiana?

It depends entirely on the county. Indiana charges a uniform statewide sales tax of 7.00% with no local taxes. In Ohio border counties, rates range from 6.50% in Butler County (lower than Indiana) to 7.80% in Hamilton County (higher than Indiana), while most rural border counties sit at 7.25%.

If I live in Ohio and buy a car in Indiana, which tax do I pay?

You pay Ohio auto sales tax based on your home county of residence when you title the vehicle in Ohio under R.C. 5739.033(C). Licensed Indiana dealerships execute Indiana Form ST-108E so you pay your full sales tax directly to the Ohio County Clerk of Courts upon registration.

Do I owe Ohio use tax if I shop in Indiana?

If you live in an Ohio county with a rate higher than Indiana's 7.00% (such as Hamilton at 7.80% or Darke/Preble at 7.25%), you owe the remaining 0.25% to 0.80% difference as Ohio consumer use tax under R.C. 5741.02(C)(5). If you live in Butler County (6.50%), you owe $0 additional tax.

Does Indiana have local or county sales taxes?

No. Indiana state law does not allow local counties or municipalities to levy general local sales taxes. All retail sales are taxed at the uniform 7.00% state rate under IC 6-2.5-2-2.

How do agricultural exemptions compare between Ohio and Indiana?

Both states exempt machinery and supplies used directly in agricultural production. Ohio uses Form STEC B under R.C. 5739.02(B)(42)(n), while Indiana utilizes Form AG-1 under IC 6-2.5-5-2.

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Statutory Sources & References

• Indiana Department of Revenue — Sales Tax Overview (IC 6-2.5-2-2)
• Indiana Form ST-108E — Out-of-State Motor Vehicle Exemption
• Ohio Revised Code § 5739.02 — Levy of State Sales Tax
• Ohio Revised Code § 5741.02(C)(5) — Reciprocal Tax Credit
• Ohio Revised Code § 5739.01(H)(2) — Trade-in Allowance on Motor Vehicles

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Related Tools and Guides

• Ohio Use Tax Calculator — Calculate use tax due and out-of-state credits instantly.
• Ohio Car Sales Tax Calculator — Compute vehicle tax by county with title fees.
• Ohio Sales Tax Rates by County — Current 2026 rates for all 88 Ohio counties.
• Butler County Sales Tax Details — Explore the 6.50% rate in Ohio's border hub.
• Ohio Sales Tax vs. Use Tax Explained — Complete guide to consumer and business use tax obligations.