Cortland County, New YorkProperty records & tax offices
Links open the listed public-office or service-provider website in a new tab. This directory does not collect payments.
Find the right property record
Use the property portal for ownership and assessed value, the collector for a bill or balance, and the map for parcel location. Have the address, owner name, or parcel number ready.
Tax bills & filing dates
These are the dates and qualifications recorded in the directory. Confirm your tax year and current deadline with the official office and your property’s notice.
- Assessment appeal
- May 26, 2026 (fourth Tuesday in May); Cortland County's key assessment dates list the fourth Tuesday in May as Grievance Day, with SCAR due within 30 days of final roll filing.
Exemptions & appeals
View exemption application (opens in a new tab)Exemption filing
March 1, 2026 for local exemption applications; Cortland County directs applicants to the local assessor and publishes STAR, senior, veteran, and other forms.
Senior relief
2026 Enhanced STAR: primary residence, one resident owner age 65+ by December 31, and combined income of resident owners and resident spouses of $110,750 or less. Basic STAR income limits are $500,000 for the credit and $250,000 for the exemption. The local senior-citizens exemption may reduce assessed value by up to 50%, subject to the municipality's income limit; apply through the local assessor.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.
More exemption & appeal guidance →