Nassau County homeowners have been given extra time to challenge their property tax assessments! The deadline to file a property tax grievance for the 2026/27 tax year has been officially extended to April 1, 2025—a month later than the original March 3rd deadline. This extension is a big deal, as it gives homeowners additional time to evaluate their property’s assessed value and decide whether to file a grievance. If you’ve been on the fence about whether to challenge your assessment—or if you’ve never grieved before—this is the perfect opportunity to take action.
Here are five important reasons why filing a tax grievance is one of the smartest financial decisions a Nassau County homeowner can make. There is no time to waste – April 1st is right around the corner and if you miss the deadline, there is no second chance!
Reason #1: Filing a Tax Grievance is Risk-Free and Often Pays Off
Many Nassau County homeowners assume that filing a tax grievance is a gamble. It’s not! Over three-quarters of homeowners who challenged their 2024/25 assessments received reductions. And when you work with a trusted firm like Maidenbaum, your chances of success increase significantly. Best of all, in New York State, your assessment can never be increased as a result of filing a grievance. That means there’s zero risk—just the potential for property tax savings.
Reason #2: If You Don’t Challenge Your Assessment, Your Taxes Will Likely Go Up
It’s no secret that Nassau County has some of the highest property taxes in the country. With a median tax bill exceeding $10,000, homeowners face a heavy financial burden—one that tends to increase every year. Why? School taxes, which make up the majority of your property tax bill, typically rise annually as school budgets grow. Although annual school tax levies in New York State are capped at 2 percent, they have consistently risen year after year, and there’s no reason to think that future tax years will be an exception to this rule.
If you don’t grieve your assessment, you risk paying more than necessary as School and General tax rates tend to increase year after year. By filing a grievance, you protect yourself from unfair tax hikes and ensure you’re not overpaying.
Reason #3: Grieving Every Year is a Winning Strategy
Many homeowners think that once they’ve won a reduction, they don’t need to file again. That’s a mistake!
Property assessments change yearly, and if you don’t challenge yours, your tax burden could creep back up. At Maidenbaum, we’ve spent 35 years helping homeowners secure property tax reductions, and we’ve seen many cases where filing consecutive grievances leads to consistent savings. Think of it this way: Each grievance is a course correction, helping to ensure your home’s assessed value accurately reflects market conditions. If you skip a year, you may lose out on potential reductions.
Bottom line? If you own a home in Nassau County, grieving your property taxes annually is a smart financial move.
Reason #4: Every Nassau County Homeowner Has the Right to Grieve—Do It!
Did you know that challenging your property tax assessment is your legal right? Just as you have the right to appeal a court decision, you also have the right to contest Nassau County’s valuation of your home.
The County’s Department of Assessment assigns a value to your property, but that doesn’t mean it accurately reflects current market conditions. If the assessed value is too high, you could be paying more than your fair share in property taxes. By grieving your assessment—whether on your own or with an experienced firm like Maidenbaum—you have the opportunity to present evidence and seek a reduction.
Reason #5: Filing a Grievance Takes Just a Few Minutes
Many homeowners put off filing a grievance because they assume it’s a long, complicated process. Not with Maidenbaum!
Our quick and easy online form takes just a few minutes to complete. Once you authorize us to act on your behalf, we handle everything from start to finish.
- No upfront costs. We only charge a fee if we win your reduction.
- No stress. We take care of all paperwork, research, and negotiations.
- No worries. We’ll keep you updated on your case’s progress.
With the deadline now extended to April 1, 2025, there’s no reason to wait. Take advantage of this extra time to protect your financial future and lower your property tax bill.
Ready to Get Started? Contact Maidenbaum Today!
We’re proud to be Nassau County’s trusted property tax grievance experts for 35 years. If you’re ready to file—or just want to learn more—visit our website or call us at 516-336-8622.
Let Maidenbaum help you save money!