OverAssessedYour Assessment.
Your Control.
Built for the five boroughs. Houses, condos, co-ops, rentals, entire buildings — if you own it in NYC, know exactly what you're paying and why. Free. 60 seconds.
Your BBL (Borough-Block-Lot) is the 10-digit ID on your property tax bill. Look it up here
✦ Houses · Condos · Co-ops · Rentals · Entire Buildings — $39 per property, any class ✦
Already have a tax lawyer or assessor? Good. Use this as your second pair of eyes — make sure they didn't miss anything.
Four Steps. No Guesswork.
Enter Address
We pull your official NYC assessment. Instantly.
See Comps
Side-by-side with similar properties. What are they paying?
Get Evidence
Pre-filled forms. Data packet. The proof you need.
File & Save
Walk it in. Mail it. Done. Beat the deadline.
Multiple Properties?
Multiply Your Savings.
You manage multiple buildings. Every dollar counts. Whether you use a lawyer, assessor, or do it yourself — a $39 second opinion for each property is the smartest investment you'll make this year. Don't leave money on the table.
- ✓ Full building analysis per BBL
- ✓ Unit-by-unit comparable data
- ✓ Pre-filled TC106 form for appeals
- ✓ Cap rate verification for income properties
- ✓ Clear savings estimate per property
Per Property
$39
one-time · per BBL
"$39 per property. Insignificant compared to thousands in annual savings. For each building."
Condo boards: $500 flat rate — every unit in your building.
What You Get
Free
Assessment checkup
- ✓ Your official assessment data
- ✓ Comparable property data
- ✓ Appeal recommendation (yes/no)
- ✓ NYC filing form guidance
- ✓ Key deadlines reminder
$39
Evidence packet
- ✓ Everything in Free
- ✓ Pre-filled TC101 or TC106
- ✓ 5+ comparable properties evidence
- ✓ Step-by-step filing guide
- ✓ Expert tips to maximize your appeal
Questions
Do I still need a tax lawyer?
Many owners handle appeals themselves. Our $39 report gives you the evidence lawyers use. You decide.
What's a BBL?
Borough-Block-Lot — your property's unique NYC identifier. It's on your tax bill, or just enter your address.
Can I file the appeal myself?
Yes. NYC allows owners to file directly. We provide the forms and evidence. No lawyer required.
How much do people actually save?
Owners save $2,000–$10,000+ per year per property. Sometimes more. Our tool identifies if you're over-assessed.
What about deadlines?
Strict deadlines. Class 1 (houses): March 15. Class 2 (condos/co-ops): March 1. Don't miss yours.
Is this legal advice?
No. We provide data and pre-filled forms from public records. For complex situations, consult a tax attorney.