St. Lawrence 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.
- Payment deadline
- 2026 town and county taxes are payable to local town collectors January–May; village taxes June–September; school taxes September–October. Unpaid school and village taxes remain payable to the County Treasurer through November.
- Assessment appeal
- May 26, 2026 (the fourth Tuesday in May) is the standard 2026 Grievance Day under NY RPTL §512; alternate dates may apply by local law, so confirm the municipality's published time and filing instructions.
Exemptions & appeals
View exemption application (opens in a new tab)Exemption filing
March 1, 2026 for most New York local property-tax exemptions, including STAR exemption and senior exemptions; file with the applicable municipal assessor. New STAR credit applicants register with New York State instead.
Senior relief
Enhanced STAR for 2026-2027: one resident owner must be at least 65 by December 31, 2026 and qualifying income is $110,750 or less; it applies to school taxes. A municipality may also grant the senior-citizens exemption under RPTL §467, with local income limits and filing rules.
Valuation limits
New York's property-tax cap limits annual local-government and school-district tax-levy growth generally to the lower of 2% or inflation, subject to statutory exclusions and overrides; it is a levy cap, not an individual parcel assessed-value cap. Assessors must maintain uniform municipal assessment levels.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.