Thursday, November 12, 2026
Tax Rate Center The Complete US Sales Tax & Calculator Directory

45424 Sales Tax Rate

ZIP code 45424 (Dayton, OH) covers 3 sales tax areas with combined rates from 6.75% to 7.5%. See the state, county, city and special district breakdown and calculate the tax. Rates effective October 2018.

Tax area 1: Unincorporated Montgomery County

State tax
5.75%
County tax (Montgomery)
1.25%
City tax
0%
Special district tax
0.5%
Combined rate
7.5%

Tax area 2: Unincorporated Miami County

State tax
5.75%
County tax (Miami)
1.25%
City tax
0%
Special district tax
0%
Combined rate
7%

Tax area 3: Unincorporated Greene County

State tax
5.75%
County tax (Greene)
1%
City tax
0%
Special district tax
0%
Combined rate
6.75%

Source: Ohio: Streamlined Sales Tax rate and boundary files (OHR2026Q4SEP17.csv), rates in effect October 1, 2026. Effective October 2018.