Through the Open Nassau portal, the Nassau County Comptroller's Office provides access to comprehensive information about how tax dollars are being used. Open Checkbook shows what the County pays to outside vendors, contractors and other intergovernmental programs. This easy-to-search database is updated monthly and contains detailed information on claims paid by the County.

Vendor names have been redacted for security purposes but are available to the public under the Freedom of Information Law ("FOIL"). If you are interested in information not included here, please feel free to submit a FOIL request by submitting the form found here

To view the other side of the County's ledger, please visit Nassau County Cash Receipts