2026 fiscal calendar
Know the tax date before it becomes a penalty date.
Tax bills, payment rules, and valuation-review windows are controlled by the local jurisdiction and the governing state framework. The verified record below separates published figures from dates that require confirmation with Delaware County Board of Assessment.
Effective rate
county, municipal, and school district rates vary; the county's 2026 tax-deferral program and tax-rate materials are district-specific.
Statement mailing
February 1, 2026; official county materials state the county bill is mailed February 1.
Payment deadline
2026 county real estate taxes: 2% discount February 1 through April 1; face amount April 2 through June 1; 10% penalty after June 2. Local municipal and school bills may differ.
Valuation protest
August 1, 2026 for annual appeals for the following tax year; interim appeals are due within 40 days of the assessment-change notice; exemption appeals use the applicable preceding-year deadline.
Critical payment warning
Do not assume a grace period.
The verified county record identifies the payment timing above but does not establish a universal penalty schedule for this page. Late charges, interest, collection costs, tax-sale procedures, and lien or foreclosure timelines can depend on state law and the local collector’s process. If the deadline is close or a balance is delinquent, contact the tax collector directly and request the current payoff amount in writing.
Treat the published payment deadline as a hard operational date and retain your receipt or confirmation number.
Read the calendar in order
From assessment to collection
1. Valuation and notice
Review the assessment notice as soon as it arrives. The protest window may run from the notice date rather than from the payment due date.
2. Statement and account review
Match the tax statement to the parcel or account number and confirm exemptions, assessed value, taxing units, credits, and balance.
3. Payment confirmation
Use the official collector channel, then save the receipt, transaction reference, and date posted. A bank submission is not always the same as a county posting date.