Please verify that your name, Social Security Number and address are accurate. You may update your address by registering to use the Employee Services Website. Any written changes must be mailed to Oasis, a Paychex® Company, 2054 Vista Parkway, Suite 300, West Palm Beach, FL 33411 or faxed to 866-641-3398. You may also give changes to the payroll contact at your company who can submit them electronically to Oasis. All changes must be received prior to the end of the current tax year. A copy of the Social Security card is required Social Security Number changes. All paper W-2s will be mailed prior to January 31st for the previous year, in accordance with IRS guidelines, to the employee’s address on file as of year end.