Internal Revenue Service agents raided a Huntington Station tax preparation office on this, the last day of the tax-filing season.

The IRS removed boxes from Sime Income Tax Services on New York Avenue in Huntington Station. The IRS did not release details about the search warrant.

Meanwhile, in Bay Shore, tax preparer Humberto Gonzalez turned himself in to authorities Monday in relation to a year-long fraud investigation. Gonzalez's attorney Anthony LaPinta said his client is innocent of filing 65 fraudulent returns, as authorities claim.

"Our position is maybe there were mistakes made," LaPinta said. "But mistakes do not mean there was intentional conspiracy behind it."

IRS agents warned taxpayers to double check their filings no matter who prepares the forms. Even if someone else fills out the paperwork, agents said the taxpayer is ultimately responsible for their return.

Despite the April 17 deadline, the IRS has issued an extension for Long Island residents affected by the nor'easter. Those residents now have until April 19 to file. To get the extension, filers must mark all paper forms with the words "April 16 storm."

Related Information: Nor'easter extension State extension