Nassau County: (516) 342-4849
Suffolk County: (631) 302-1940


Nassau County: (516) 342-4849

Suffolk County: (631) 302-1940

Suffolk County Filing Deadline - Tuesday, May 18th 3pm

Long Island’s #1 Tax Grievance Company Since 2007

You Have Nothing To Lose, But Your Taxes


Pay No Upfront Fees

Contingency Fee 50% of 1st Year’s Savings

Work with Long Island’s Tax Grievance Experts


Record Tax Reductions in Nassau & Suffolk Counties


Find Out if You Qualify For A Reduction Fast

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Based on 67 reviews
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Based on 43 reviews

Residential Tax Grievance

We set the record for tax reductions

$73,443 in Nassau County
$29,185 in Suffolk County

Property tax grievance is a formal complaint, filed on your behalf, against your town’s assessed value on your property based upon comparable sales. If we can prove your home is worth less than that value, we will accept your grievance and aggressively seek to reduce your property taxes to the lowest amount, legally allowed.

Commercial Tax Grievance

We can help you save tens to hundreds of thousands in property tax refunds.

Commercial Tax Grievance (real estate tax certiorari) is the legal process that challenges the real estate tax assessment of your commercial property to reduce its assessment, resulting in lower real estate taxes. We’ll represent you throughout the entire, stringent process and aggressively seek to reduce your property taxes to the lowest amount, legally allowed.

Realtor Service


Partner with Heller to sell your listings faster. Need CE credits? We are the only tax grievance company licensed by the State of New York to teach you the process…free.

We Hold the Highest Property Tax Reduction Records on Long Island!

Put Long Islands' #1 Rated Tax Reduction Company to Work For You


$75,443/yr Brookville Rd, Brookville

$34,817/yr Foxhunt Crescent, Syosset

$24,662/yr Mill River Rd, Upper Brookville


$29,185/yr Old Field Rd, Old Field

$18,334/yr Old Field Rd, Old Field

$12,312/yr James Neck Rd, Head of the Harbor

Why Heller & Consultants?

Record Property Tax Reductions

Put Long Island's #1 team to work for you

Find Out If You Qualify Fast

Get your answer in days, not weeks

Apply Risk-free Online or By Phone

We are standing by to fast-track your application

No Savings. No Fee. Guaranteed!

Pay nothing unless we save you money

Featured In:

Helping 100,000 Property Owners Save More Than $60 Million Since 2007

Great working with Adam and his team. Would recommend to anyone looking to grieve their taxes.

Alex S.

“Great place to grieve your taxes! Knowledgeable representatives and good service.”

Courtney C.

Excellent service and communication. Best tax grievance company I have ever used.

Christopher K.

Welcome to our website. At Heller & Consultants, we specialize in grieving property taxes for Suffolk and Nassau Counties. Heller & Consultants Tax Grievance has saved homeowners just like you thousands of dollars each year. IF we are denied a reduction for you, we pay all costs. It is our commitment and desire to establish trust and a long-lasting relationship with our clients. This commitment has served us well throughout the years. We take pride in knowing that our clients keep returning to us for advice.

Please call or email our office for your FREE analysis today. You have NOTHING to lose… except your taxes! Don’t be left behind continuing to overpay your property taxes!

“We’ve gotten to the point where the assessments make no sense. The reductions make no sense. The effect on your taxes makes no sense. And the only thing that makes sense is to challenge your assessment.”

said Legis. David Denenberg (D-Merrick)

Long Island Tax Grievance Resources

Property Taxes in the USA

Property Taxes in the USA

If you own property in the United States, odds are very likely that you pay some sort of property tax. This tax is very standard across the jurisdictions that make up the USA. Property taxes can be placed upon real estate as well as other forms of personal property....

How to Lower Your Long Island Property Tax Bill in COVID Times

How to Lower Your Long Island Property Tax Bill in COVID Times

It has been a difficult year for everyone, including Long Island residents. Unfortunately, it has also been a difficult year financially for county and local municipalities, which are looking to close their budget gaps with yet another property tax increase for Long...

Guide to Understanding Assessed Value

Guide to Understanding Assessed Value

If you are a new homeowner or have never bothered to understand how your property tax rate is calculated, one thing that you will need to understand is what assessed value is. On this page, we will cover everything that you need to know on this topic. Main Points Your...

Definitive Guide to Property Taxes in 2021

Definitive Guide to Property Taxes in 2021

Once you finally purchase your first home, you will probably be excited to plan out all the new space that you now own. While you are in the process of planning out how you will use your new property, one thing you will need to remember are the impending property...

Claiming a Property Tax Deduction on Your Federal Tax Filing

Claiming a Property Tax Deduction on Your Federal Tax Filing

Property ownership remains one of the best investment portfolios in the country. Many Americans save for years to buy their own homes, and the highlight of this journey is holding the keys to their home. With homeownership, also comes paying taxes on the ownership of...

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