Good news for Nassau County homeowners: the deadline to file a property tax grievance for the 2027/28 tax year has been extended to March 31, 2026.
This extension gives homeowners a little more time to review their property’s assessed value and decide whether it makes sense to challenge it. If you’ve been thinking about filing, or if you’ve never grieved your taxes before, this additional time provides a valuable opportunity to take action. But don’t delay. March 31st will arrive quickly, and once the deadline passes, there will be no opportunity to challenge your assessment for this tax year.
Please be aware that if you decide to have Maidenbaum handle your grievance (a very smart move), you’ll only have until 11:00PM, MONDAY, MARCH 30, 2026 to request a 2027/2028 Tax Grievance Authorization Form from us.
Below are five key reasons why filing a property tax grievance is often one of the smartest financial decisions a Nassau County homeowner can make.
Reason #1: Filing a Tax Grievance Is Risk-Free, and Often Successful
Many homeowners hesitate because they believe challenging their assessment is a gamble. In Nassau County, it isn’t.
Under New York State law, filing a property tax grievance is completely risk-free. If the County denies your request, your assessment will not increase simply because you filed a challenge. This differs from some states, such as New Jersey, where a failed challenge can sometimes lead to a higher assessment.
When you work with an experienced firm like Maidenbaum, the process becomes even easier. Our team reviews your property, prepares the grievance, and advocates on your behalf, improving your chances of achieving a reduction.
Reason #2: Property Taxes Tend to Rise Over Time
Nassau County is known for having some of the highest property taxes in the nation, with many homeowners paying well over $10,000 per year.
A major reason is that school taxes (typically the largest portion of a property tax bill) tend to increase annually as school budgets grow. While New York State limits annual levy increases to approximately 2 percent, taxes still tend to rise year after year.
If your property assessment is higher than it should be, those increases can compound over time.
Filing a grievance helps ensure that your home’s assessed value remains fair and that you are not paying more than your fair share of property taxes.
Reason #3: Filing a Grievance Every Year Can Lead to Long-Term Savings
Some homeowners believe that once they receive a reduction, they no longer need to file grievances in future years. In reality, assessments change over time, and market conditions shift. If you skip a year, your assessment may slowly creep upward again.
For more than 35 years, Maidenbaum has helped Nassau County homeowners reduce their property taxes. One of the most effective strategies we’ve seen is filing grievances consistently.
Think of each grievance as a way of keeping your home’s assessed value aligned with real market conditions. Filing regularly helps prevent unnecessary increases and can lead to ongoing savings over time.
Reason #4: Every Nassau County Homeowner Has the Right to Challenge Their Assessment
Many homeowners don’t realize that grieving their property taxes is a legal right.
Each year, Nassau County’s Department of Assessment assigns a value to your property. However, that valuation may not always reflect the true market value of your home.
If the assessed value is too high, you may be paying more in property taxes than you should.
By filing a grievance, you have the opportunity to present evidence that your assessment should be lower. Whether you file on your own or work with an experienced firm like Maidenbaum, exercising this right can help ensure your taxes are fair.
Reason #5: Filing a Grievance Is Quick and Easy
Another common misconception is that the grievance process is complicated and time-consuming.
With Maidenbaum, it isn’t.
Our simple online form takes just a few minutes to complete. Once you authorize us to represent you, our team handles the entire process—from research and documentation to filing and negotiations.
- No upfront costs – you only pay if we successfully reduce your taxes.
- No paperwork stress – we manage the entire process.
- No uncertainty – we keep you informed about your case.
With the March 31, 2026 deadline now approaching, there’s no reason to wait.
Ready to Take Action? Contact Maidenbaum Today
Maidenbaum is proud to be Nassau County’s original property tax grievance firm. For more than three decades, we’ve helped tens of thousands of homeowners save millions of dollars on their property taxes.
If you’re ready to file your grievance, or simply want to learn more about your options, visit our “Get Started” page or call 516-336-8622 today.
Take advantage of the extended deadline and make sure you’re not paying more property taxes than necessary!