Income Tax

General Information

The Income Tax Office provides the service of collection, audit, and enforcement of the 2.25% income tax for the City of Miamisburg as well as Austin Center Joint Economic Development District (JEDD) and the Miami Crossing JEDD.

Calendar year end tax returns are due the same date as federal tax returns. Taxpayers can also request a federal filing extension to October 15th that will be honored by the City of Miamisburg. This will be an extension of time to file, not an extension to pay.

Residents of the City of Miamisburg are allowed full credit up to (2.25%) for taxes due and paid to other cities on the same income taxed by Miamisburg.

The interest rate is calculated based on the federal short-term rate plus 5%. The rates are as follows:

  • Calendar year 2021: 5% per year or 0.42% per month
  • Calendar year 2022: 5% per year or 0.42% per month
  • Calendar year 2023: 7% per year or 0.58% per month
  • Calendar year 2024: 10% per year or 0.83% per month

Online Local Income Tax Filing

To file or pay online, please click the blue box below. This will take you to the Tax Connect Online Income Tax Filing and Payment Tool. You will need your account number to set up online access. If you do not know your account number, please give us a call at the number below.

The online income tax return filing tool is currently only set up for full year residents with only W-2 income. If you have income that is shown on a Federal Schedule 1, C, E, F or Form 4797, please complete a paper form and mail in.

Note, an income tax return is not considered filed until all necessary documents are received. Please upload all required documents with your online return.

If you have any questions or need additional information, contact the Tax Office at (937) 847-6462 weekdays from 8 a.m. to 5 p.m. or through email at

Income Tax Contact

10 North First Street
Miamisburg, OH 45342
(mailing address)
Weekdays, 8 a.m. to 5 p.m., excluding holidays
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