Nassau Executive Laura Curran filed legislation on Monday that aims to correct erroneously high tax bills in the county.

Lawmakers say the owners of more than 5,500 properties in Nassau were overcharged by as much as $5.6 million, with many of the instances affecting senior citizens and veterans.

A county spokesperson told Newsday:

"The county's older assessment system failed to apply the Taxpayer Protection Plan's 5-year phase-in properly to approximately 4,700 veterans and 800 clergy — resulting in these homeowners not receiving some or all of the benefit of TPP on County and town special district taxes."

The county says all residents will be reimbursed. 

Republican Legislator John Ferretti scoffed at the explanation, saying “It's really a shame, not only that this happened, but that the county executive isn't willing to be held accountable."

The county's communications director issued a separate statement Tuesday calling Frennetti's response "petty politics."   

Executive Curran is also asking Gov. Andrew Cuomo to extend the deadline for first half general tax bills without penalty until March 12.