Deadline Extended to April 1st to Challenge Your 2026/27 Property Tax Assessment!

Nassau residents now have a bit more time to file a property tax grievance for the 2026/27 tax year, with the Assessment Review Commission having now extended the deadline to April 1st. Take advantage of this opportunity—here’s why it’s a no brainer to file with Maidenbaum: 

No Risk, All Reward 

In Nassau County and throughout New York State, filing a property tax grievance is completely risk-free. The worst-case scenario? The County denies your request for a reduction—but your assessment won’t increase because of your challenge. This is a major advantage compared to other states (like New Jersey), where a failed challenge could actually lead to a higher assessment. 

As Maidenbaum’s Mark Miller explained in a recent podcast, the County “is not allowed to raise the assessment merely because you challenged it. Even if you took your case to court and the hearing officer found that you are undervalued, they still can’t raise your assessment. That’s the law in New York State.” 

When you file with Maidenbaum, there’s zero risk—we only charge a fee if we successfully lower your taxes. The only cost you might incur is a $30 court-imposed filing fee if your case goes to Small Claims Assessment Review. That’s it. No hidden fees, no surprises (unlike many other Nassau County tax reduction firms). 

Filing on Your Own? It’s Riskier Than You Think 

Yes, you can file your own grievance (Pro Se) with Nassau County, but it’s easy to make mistakes—like submitting incomplete paperwork or using incorrect comparable sales data (comps). These errors could mean missing out on potential savings. That’s why so many homeowners trust Maidenbaum—we handle everything for you, from the date of filing to the resolution of your case, increasing the probability of the best possible outcome. 

Grieving your assessment takes just a few minutes of your time.
If you’ve never grieved your Nassau County property taxes, you’ll be pleasantly surprised by the fact that doing so — with the help of Nassau County’s premiere tax reduction company – doesn’t take long. Just take a few minutes to complete the authorization request form on our website, sign the form we will subsequently provide, and we’ll take it from there. Remember, Maidenbaum won’t charge you any fees associated with this process unless we are able to secure you a reduction. We’ll stay in touch with you to update you as your tax grievance makes its way through Nassau County’s property tax system. Once you sign up, you’ll also be able to track your status with real-time updates on your secure personalized client site. 

Don’t Wait—File Before April 1st! 

Filing your challenge before the deadline could save you money down the line. At Maidenbaum, we’ve helped tens of thousands of Nassau County homeowners save millions on their property taxes. While it’s best to file early, we’re ready to assist you right up until the extended deadline. 

Let us take care of your grievance for you! Get started today by visiting our website or calling 516-336-8622.