Check the filing date and screen the entered assessment.
Screen an NYC filing deadline and user-entered assessment facts; results are not a tax-certiorari opinion.
Part of the Landlord Operations Hub
Tax Commission value challenges generally use a March 15 deadline for Tax Class 1 and March 1 for Classes 2, 3, and 4. Revised notices can create different windows.
Complete the inputs above, then calculate to review the result.
What this covers
- What it answers
- Screen an NYC filing deadline and user-entered assessment facts; results are not a tax-certiorari opinion.
- Who it is for
- Sellers and landlords alike.
- What you enter
- Borough · Property type · Tax class · Tax year beginning · Notice date (optional) · This is a qualifying revised Notice of Property Value · Assessed value · Estimated market value · Screening assessment ratio · Optional current annual tax
- What it does not cover
- Not a tax-certiorari opinion or filing service. Confirm the notice, tax class, form, receipt rules, and exceptions.
Questions about the NYC Property Tax Grievance Deadline & Screening Estimator
What does the NYC Property Tax Grievance Deadline & Screening Estimator do?
Tax Commission value challenges generally use a March 15 deadline for Tax Class 1 and March 1 for Classes 2, 3, and 4. Revised notices can create different windows.
Is the NYC Property Tax Grievance Deadline & Screening Estimator free?
Yes. It is free, and you see the result without signing up.
What do I need to enter?
Borough, Property type, Tax class, Tax year beginning, Notice date, This is a qualifying revised Notice of Property Value, Assessed value, Estimated market value, and a few optional details. Every assumption can be changed.
How is the result calculated?
The tool compares entered assessed value with entered market value and target assessment ratio. Any tax impact scales the entered annual tax by the screened assessment difference.
Where does the information come from?
NYC Tax Commission - Challenging a Notice of Property Value, NYC DOF - Residential property tax exemptions, NYC DOF - Property tax benefits, NYC DOF - 2026 Class 2 property tax guide. Last verified July 16, 2026.
Is this legal, tax, or accounting advice?
No. The result is an estimate for illustration. Check big decisions with your attorney, accountant, or a licensed broker.
Verify the underlying information
- NYC Tax Commission - Challenging a Notice of Property Value ↗
- NYC DOF - Residential property tax exemptions ↗
- NYC DOF - Property tax benefits ↗
- NYC DOF - 2026 Class 2 property tax guide ↗
Not a tax-certiorari opinion or filing service. Confirm the notice, tax class, form, receipt rules, and exceptions.