A North Hempstead family will have to pay $6,000 more a year in taxes for a total of $13,333 after the home was reassessed, county officials said.

The 10-year town employee, added a second story improvement job to her New Hyde Park cape home sometime between 2001 and 2004. However, the building department apparently did not file the required permits for the remodeling with the county assessor’s office and her taxes were never raised to reflect the renovation, officials said.

Her father deeded the home to her in 2005 through a life estate transaction. Inspectors reassessed the home at $800,000 up from $435,000, the assessor’s office said.

Currently, the family pays $7,289 a year in taxes - minus $1,718 in tax exemptions - officials said.

“We’re not criminals,” the family said. “If we didn’t pay the proper taxes, that’s the county and the town’s fault. It’s not our obligation to get it over to the assessor’s office.”

Town officials confirmed that the family actually had filed the permits and paid the fees, but the assessor’s office said it never received the documents.

“The Town is reviewing its records to determine … whether a copy of the permit for second floor renovations was delivered to the County Assessor’s office in 2002,” town spokesman David Chauvin said in a statement. “All appropriate documents will be turned over to the Assessor’s office.”

Building permit applications go to a plans examiner for approval. The examiner then stamps them and gives them to a department clerk, who then assigns them numbers before copies are sent to the assessor.