Mason, Ohio Sales Tax Rate
Buying in Mason? Because it is located in Warren County, the combined sales tax rate is 6.75%. Below is the full breakdown and a calculator preset to Mason's rate.
- Ohio state base5.75%
- Warren County & transit1.00%
- Total you pay6.75%
Mason sits in Warren County, so its combined rate is 6.75% — Ohio's 5.75% state base plus 1.00% in Warren County and transit tax. That is the rate on an in-store purchase in Mason, and the rate an out-of-state or marketplace seller charges on an order delivered here — an Ohio seller shipping from another county charges its own county's rate instead, because Ohio sources intrastate sales to the vendor. A $50.00 taxable item runs $53.38 out the door. Unprepared groceries and prescription drugs are exempt statewide, so they stay untaxed in Mason no matter the local rate. Compare this against every other Ohio county rate.
Mason has a population of about 32,662, making it the 39th largest of the 61 Ohio cities tracked here. It sits in Warren County, and its 1 ZIP code falls inside that county, so every address in Mason is taxed at 6.75%.
Mason ZIP codes at 6.75%
- 45040
How Mason compares to nearby cities
| City | Distance | County | Rate | vs Mason |
|---|---|---|---|---|
| Mason | — | Warren | 6.75% | — |
| Lebanon | 7.7 mi | Warren | 6.75% | same |
| Middletown | 11.7 mi | Butler | 6.50% | -0.25% |
| Fairfield | 13.4 mi | Butler | 6.50% | -0.25% |
| Hamilton | 13.7 mi | Butler | 6.50% | -0.25% |
Middletown, about 11.7 miles away in Butler County, charges 6.50% — 0.25% less than Mason. On a $1,000.00 purchase that is a $2.50 difference. Vehicles are the exception: they are taxed at your county of residence, not where you buy or register them.
Calculate tax in Mason
Mason sales tax by purchase amount
| Purchase | Sales Tax (6.75%) | Total |
|---|---|---|
| $1.00 | $0.07 | $1.07 |
| $5.00 | $0.34 | $5.34 |
| $10.00 | $0.68 | $10.68 |
| $25.00 | $1.69 | $26.69 |
| $50.00 | $3.38 | $53.38 |
| $100.00 | $6.75 | $106.75 |
| $500.00 | $33.75 | $533.75 |
| $1,000.00 | $67.50 | $1,067.50 |
Groceries and prescription drugs are exempt statewide, so they carry $0 tax in Mason. Prepared food and general merchandise are taxed at 6.75%.
Mason sales tax FAQ
The combined sales tax rate in Mason is 6.75% in 2026. This is based on its location in Warren County, which adds a 1.00% county and transit portion to Ohio's 5.75% state base rate.
At 6.75%, sales tax on a $100 taxable purchase in Mason is $6.75, for a total of $106.75.
No. Unprepared groceries and prescription drugs are exempt from Ohio sales tax statewide, so they are not taxed in Mason. Prepared food and restaurant meals are taxable at 6.75%.
Mason covers 1 ZIP code (45040), and all of them fall in Warren County, so every one is taxed at 6.75%. A ZIP can straddle a county line, so for a specific street address confirm with Ohio's own address lookup.
Yes — Middletown is about 11.7 miles away in Butler County at 6.50%, and Fairfield is about 13.4 miles away in Butler County at 6.50%, and Hamilton is about 13.7 miles away in Butler County at 6.50%. Ohio sources sales tax to where the sale happens for in-store purchases, so buying there does mean the lower rate. It does not work for vehicles: those are taxed at the rate of your county of residence, not where you buy or register them.
Explore Ohio cities beyond Mason
Need a different calculation? Try the reverse sales tax calculator or the car sales tax calculator.
Shipping somewhere specific? Use the Ohio ZIP code sales tax lookup to confirm the rate for any ZIP code in Warren County.
Not sure what's taxable? Read what is taxable in Ohio, Ohio sales tax exemptions, or how to calculate Ohio sales tax.