Ohio Sales Tax Exemption Certificate: STEC B & U
Which Ohio exemption certificate to use, how to complete STEC B and STEC U correctly, the 90-day rule, and the reason lines that fail an audit.
Jefferson County Reverse Sales Tax Calculator
Jefferson County's combined sales tax rate is 7.25%. Already have the total? Stop multiplying and start dividing. Work backward to the pre-tax price and the exact sales tax hidden inside it.
Last updated:
This reverse sales tax calculator is preset to Jefferson County's 7.25% combined rate — Ohio's 5.75% state base plus 1.50% in county and transit tax across Jefferson County. For the full rate breakdown, a tax-by-amount table, and Jefferson County FAQs, see the Jefferson County sales tax page.
WORKFLOW
How it works in Jefferson County
Follow the exact steps to get your result instantly and privately.
Purchase Details
AMOUNTSubtotal (Pre-tax)
$1,250|
Just the sticker price. No commas needed.
STEP 1
1. Enter the total you paid
Type the final, tax-included amount from your receipt—the number you actually handed over at checkout.
Jefferson County How to Back Out Sales Tax
Sales tax is added on top of a price, so the total is the price multiplied by one-plus-the-rate. To reverse it, you divide the total by that exact same figure to recover the original price, then subtract to find the tax. This is the ONLY correct way. Multiplying the total by the rate overstates the tax, because you end up taxing the tax.
Pre-Tax Price = Total ÷ (1 + Combined Rate)
Sales Tax = Total − Pre-Tax Price
Sales Tax = Total − Pre-Tax Price
Example: Let's look at the numbers. A $108.00 total in a county with an 8.00% combined rate breaks down to $108 ÷ 1.08 = $100.00 before tax, leaving exactly $8.00 in sales tax.
Worked Examples
$108.00 total at 8.00% (Franklin)$108 ÷ 1.08$100.00 pre-tax → $8.00 tax
$53.25 total at 6.50% (Butler)$53.25 ÷ 1.065$50.00 pre-tax → $3.25 tax
$214.00 total at 7.00% (Delaware)$214 ÷ 1.07$200.00 pre-tax → $14.00 tax
$1,080.00 total at 8.00% (Cuyahoga)$1,080 ÷ 1.08$1,000.00 pre-tax → $80.00 tax
What a $100.00 tax-included total breaks down to at common Jefferson County combined rates.
| Combined Rate | Pre-Tax Price | Sales Tax in the Total |
|---|---|---|
| 6.50% | $93.90 | $6.10 |
| 6.75% | $93.68 | $6.32 |
| 7.00% | $93.46 | $6.54 |
| 7.25% | $93.24 | $6.76 |
| 7.50% | $93.02 | $6.98 |
| 7.75% | $92.81 | $7.19 |
| 8.00% | $92.59 | $7.41 |
What a $100.00 tax-included total breaks down to at common Jefferson County combined rates.
Jefferson County Quick Facts
- Backing out tax uses division, not multiplication. Multiplying the total by the rate mathematically overstates the tax.
- The pre-tax price is always smaller than the total divided by the rate alone.
- Reverse calculations are incredibly common at tax time, for expense reports, and for reconciling shady receipts.
- Ohio's combined rates run from 6.50% to 8.00%, so the same total hides a different tax amount in each county.
- Groceries and prescriptions are legally exempt, so a receipt for those has $0 tax to back out.
Ohio CPA & Small Business Advisor
Sales & Use Tax Specialist
- CPA
- Small Business Advisor
- ODT audit survivor
Written by a seasoned Ohio CPA and small-business advisor who has survived more than a few Ohio Department of Taxation audits. These tools and guides distill that hands-on experience so shoppers, sellers, and businesses stay out of trouble and keep more of their own money.
Reviewed by Ohio CPA & Small Business Advisor · Last reviewed August 25, 2026
Ohio Sales Tax Guides for Jefferson County
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Ohio's 2026 sales tax rate is 5.75% state plus a county levy of 0.75%-2.25%. Every one of the 88 county rates, verified against ODT's own table.
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Jefferson County Reverse Sales Tax Calculator FAQ
The combined sales tax rate in Jefferson County is 7.25% — Ohio's 5.75% state base plus 1.50% in county and transit tax.
Divide the tax-included total by 1.0725 (that is, 1 plus Jefferson County's 7.25% rate). For example, a $107.25 receipt breaks down to a $100.00 pre-tax price plus $7.25 in sales tax.