The City of Sidney enacted a municipal income tax in 1957. The tax is applicable to all residents of the city as well as all non-residents working within the city and all businesses located or performing services here. The Income Tax Division is responsible for administering the Income Tax Ordinance (Chapter 142).

Rate

The income tax rate starting January 1, 2025, is 1.50%.

The income tax rate starting January 1, 2026 is 1.75%.

Mandatory Filing

Every Sidney resident 18 years of age and older must file a Sidney income tax return, even if Sidney income tax is fully withheld.

The tax filing deadline for 2025 is Wednesday, April 15, 2026.

Annual Interest Rate for Late Payment Calculation

View the Annual Interest Rates (PDF) for the annual interest rates for late payments.

Pay and File Online

File your income tax return and submit City of Sidney Income tax payments online, via a secure form, by clicking https://ohio-sidney.insourcetax.com.